[Event "Bayern-chI Bank Hofmann 26th"]
[Site "Tegernsee"]
[Date "2023.11.02"]
[Round "6"]
[White "Ghazarian, Kirk Vagho"]
[Black "Koehler, Christian Friedrich"]
[Result "1-0"]
[ECO "B10"]
[WhiteElo "2473"]
[BlackElo "2181"]
[PlyCount "59"]
[EventDate "2023.10.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "Mega2024 Update 01"]
[Source "Chessbase"]
[SourceDate "2023.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.12"]
[SourceQuality "1"]

1. c4 c6 2. e4 d5 3. exd5 cxd5 4. cxd5 Nf6 5. Bb5+ Nbd7 6. Nf3 a6 7. Ba4 Nxd5 8. Nc3 N5b6 9. Bc2 Nf6 10. h3 e6 11. d4 Be7 12. 0-0 0-0 13. Qd3 Bd7 14. Bg5 g6 15. Bh6 Re8 16. Ne5 Rc8 17. Rac1 Bc6 18. Bb3 Bd5 19. Nxd5 Nbxd5 20. Qf3 Rxc1 21. Rxc1 Bf8 22. Bg5 h6 23. Bxf6 Nxf6 24. Qxb7 Re7 25. Qxa6 Rc7 26. Rxc7 Qxc7 27. Qc4 Qa5 28. Qc3 Bb4 29. Qc8+ Bf8 30. Qb7 1-0

[Event "Bayern-chI Bank Hofmann 26th"]
[Site "Tegernsee"]
[Date "2023.11.01"]
[Round "5"]
[White "Koehler, Christian Friedrich"]
[Black "Dolzhikova, Kateryna"]
[Result "1/2-1/2"]
[ECO "E91"]
[WhiteElo "2181"]
[BlackElo "2336"]
[PlyCount "91"]
[EventDate "2023.10.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "Mega2024 Update 01"]
[Source "Chessbase"]
[SourceDate "2023.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.12"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. c4 Nf6 5. Nc3 g6 6. d4 cxd4 7. Nxd4 Bg7 8. 0-0 0-0 9. Bxd7 Nfxd7 10. Be3 Nc6 11. Rc1 a6 12. b3 Re8 13. Qd2 Qa5 14. Nxc6 bxc6 15. Rfd1 f5 16. exf5 Qxf5 17. Ne2 Nf6 18. Ng3 Qd7 19. Bg5 Rad8 20. Qe3 Ng4 21. Qe2 h6 22. Be3 Nxe3 23. Qxe3 Kh7 24. b4 d5 25. cxd5 cxd5 26. Qb6 Qa4 27. Qa5 Qxa5 28. bxa5 d4 29. Rc6 Rd6 30. Rb6 Rc8 31. Ne4 Rdc6 32. Kf1 Kg8 33. Ke2 Kf7 34. Kd3 Rc4 35. Rxa6 Ra4 36. Rd2 Rc1 37. Ra8 Re1 38. Nc5 Ra3+ 39. Nb3 Rc1 40. Ke4 Rc4 41. Kd5 Rca4 42. Nxd4 Bxd4 43. Rxd4 Rxa5+ 44. Rxa5 Rxa5+ 45. Ke4 Rxa2 46. Ke3 1/2-1/2

[Event "Bayern-chI Bank Hofmann 26th"]
[Site "Tegernsee"]
[Date "2023.10.29"]
[Round "2"]
[White "Meins, Gerlef"]
[Black "Koehler, Christian Friedrich"]
[Result "1-0"]
[ECO "D23"]
[WhiteElo "2412"]
[BlackElo "2181"]
[PlyCount "55"]
[EventDate "2023.10.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "Mega2024 Update 01"]
[Source "Chessbase"]
[SourceDate "2023.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.12"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Qc2 dxc4 5. Qxc4 Bg4 6. Nbd2 Nbd7 7. g3 e6 8. Bg2 Be7 9. 0-0 0-0 10. Ne5 Bh5 11. Ndf3 Rc8 12. Bg5 Bxf3 13. Nxf3 h6 14. Bf4 Qb6 15. Rfd1 c5 16. Qb3 c4 17. Qxb6 Nxb6 18. Ne5 Nfd5 19. Bd2 Rc7 20. Rac1 Rfc8 21. e4 c3 22. exd5 cxd2 23. Rxc7 Rxc7 24. dxe6 Rc1 25. exf7+ Kf8 26. Bf3 Na4 27. Kg2 Rc2 28. Bd5 1-0

[Event "Rheinland Pfalz op 13th"]
[Site "Engers"]
[Date "2023.06.10"]
[Round "5"]
[White "Peng, Li Min"]
[Black "Koehler, Christian Friedrich"]
[Result "1-0"]
[ECO "C42"]
[WhiteElo "2530"]
[BlackElo "2202"]
[PlyCount "55"]
[EventDate "2023.06.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nxf7 Kxf7 5. Nc3 c5 6. Bc4+ Be6 7. Bxe6+ Kxe6 8. d4 Kf7 9. dxc5 Nc6 10. Qe2 g6 11. Bg5 h6 12. Bh4 Qa5 13. 0-0-0 g5 14. Bg3 Qxc5 15. Rhf1 Re8 16. f4 Re6 17. fxg5 hxg5 18. e5 Rxe5 19. Bxe5 Qxe5 20. Qc4+ Kg7 21. Rde1 Qd4 22. Qe6 Be7 23. Rf5 Rf8 24. Rxg5+ Kh8 25. Rf1 Qh4 26. Rg3 Qh6+ 27. Kb1 Qd2 28. Rxf6 1-0

[Event "GER-ch 93rd"]
[Site "Magdeburg"]
[Date "2022.08.20"]
[Round "9"]
[White "Boder, Jan"]
[Black "Koehler, Christian Friedrich"]
[Result "1-0"]
[ECO "E07"]
[WhiteElo "2315"]
[BlackElo "2285"]
[PlyCount "39"]
[EventDate "2022.08.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Be7 5. Bg2 0-0 6. 0-0 c6 7. Nc3 Nbd7 8. Qd3 b6 9. cxd5 exd5 10. Bf4 Bb7 11. Rad1 Re8 12. Ne5 Nf8 13. e4 dxe4 14. Qc4 Ne6 15. Nxe4 Nd5 16. Bc1 Rc8 17. Nc3 Qd6 18. Rfe1 Bf8 19. Qd3 Rc7 20. Bxd5 1-0

[Event "GER-ch 93rd"]
[Site "Magdeburg"]
[Date "2022.08.19"]
[Round "8"]
[White "Koehler, Christian Friedrich"]
[Black "Pahl, Erik"]
[Result "1-0"]
[ECO "A03"]
[WhiteElo "2285"]
[BlackElo "2203"]
[PlyCount "77"]
[EventDate "2022.08.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. f4 c5 2. Nf3 d5 3. b3 Nc6 4. e3 a6 5. Bb2 Nf6 6. c4 d4 7. exd4 cxd4 8. Bd3 Bg4 9. h3 Bxf3 10. Qxf3 g6 11. Be4 Nxe4 12. Qxe4 Bg7 13. 0-0 0-0 14. d3 Qd7 15. Nd2 f5 16. Qe2 e5 17. fxe5 Bh6 18. Nf3 Be3+ 19. Kh1 f4 20. Ba3 Rf5 21. Bd6 Rh5 22. b4 Nd8 23. a4 b6 24. a5 Qb7 25. axb6 g5 26. Ng1 Rh4 27. Qf3 g4 28. Qxb7 Nxb7 29. c5 Kf7 30. e6+ Kxe6 31. Bxf4 gxh3 32. Nxh3 Kd5 33. Bg3 Rh6 34. Rf7 Rg8 35. Rxb7 Rxg3 36. Rd7+ Kc6 37. Rc7+ Kb5 38. b7 Rh5 39. b8R# 1-0

[Event "GER-ch 93rd"]
[Site "Magdeburg"]
[Date "2022.08.18"]
[Round "7"]
[White "Feidt, Jonas"]
[Black "Koehler, Christian Friedrich"]
[Result "0-1"]
[ECO "A10"]
[WhiteElo "1901"]
[BlackElo "2285"]
[PlyCount "78"]
[EventDate "2022.08.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. c4 f5 2. g3 Nf6 3. Bg2 g6 4. Nc3 Bg7 5. d3 d6 6. e4 0-0 7. Nge2 c6 8. 0-0 Na6 9. h3 e5 10. Be3 f4 11. gxf4 Nh5 12. Qd2 Be6 13. fxe5 dxe5 14. f4 exf4 15. Nxf4 Nxf4 16. Rxf4 Qd7 17. h4 Rxf4 18. Bxf4 Rd8 19. Rd1 Bd4+ 20. Kh1 Bg4 21. Ne2 Bf3 22. Nxd4 Bxd1 23. Nxc6 Qxc6 24. Qxd1 Qxc4 25. dxc4 Rxd1+ 26. Kh2 Rd4 27. b3 b6 28. Bg5 Kf7 29. e5 Ke6 30. Bf6 Nb4 31. a3 Nd3 32. Bh3+ Kf7 33. Kg3 Re4 34. Kf3 Re1 35. Bh8 Nxe5+ 36. Kf2 Nd3+ 37. Kf3 Rb1 38. Ke3 Rxb3 39. Kd4 Nf4 0-1

[Event "GER-ch 93rd"]
[Site "Magdeburg"]
[Date "2022.08.18"]
[Round "6"]
[White "Koehler, Christian Friedrich"]
[Black "Eichstaedt, Mirko"]
[Result "0-1"]
[ECO "D46"]
[WhiteElo "2285"]
[BlackElo "2223"]
[PlyCount "94"]
[EventDate "2022.08.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Be2 Bd6 7. 0-0 0-0 8. Qc2 dxc4 9. Bxc4 b5 10. Be2 Bb7 11. Rd1 Qc7 12. e4 e5 13. h3 Rfe8 14. a3 a5 15. dxe5 Nxe5 16. Bg5 b4 17. axb4 axb4 18. Rxa8 Bxa8 19. Bxf6 gxf6 20. Na4 Nxf3+ 21. Bxf3 c5 22. b3 Qe7 23. Nb6 Be5 24. Rd7 Qe6 25. Qc4 Bc6 26. Ra7 Bb8 27. Qxe6 Rxe6 28. Ra1 Bxe4 29. Bxe4 Rxe4 30. f3 Re8 31. Ra8 c4 32. bxc4 b3 33. Ra1 Be5 34. Rb1 Bd4+ 35. Kf1 Bxb6 36. Rxb3 Bd4 37. Rd3 Bc5 38. Rd5 Re5 39. Rd8+ Bf8 40. Kf2 h5 41. Kg3 Kg7 42. Kh4 Bc5 43. Rd2 Bb4 44. f4 Re4 45. Rb2 Rxf4+ 46. Kxh5 Rxc4 47. g4 Rc5+ 0-1

[Event "GER-ch 93rd"]
[Site "Magdeburg"]
[Date "2022.08.17"]
[Round "5"]
[White "Burian, Simon"]
[Black "Koehler, Christian Friedrich"]
[Result "1/2-1/2"]
[ECO "C97"]
[WhiteElo "2211"]
[BlackElo "2285"]
[PlyCount "116"]
[EventDate "2022.08.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. d5 Bd7 13. Nbd2 g6 14. Nf1 Ne8 15. Ng3 Ng7 16. Bh6 b4 17. cxb4 cxb4 18. Rc1 Rfc8 19. Bd3 Qb7 20. Qe2 Bd8 21. b3 Bb6 22. Rxc8+ Bxc8 23. Rc1 Qa7 24. Qd2 Bc5 25. Rc2 f6 26. Nh4 Nb7 27. Nf1 Bd7 28. g4 Rf8 29. Qe2 Ra8 30. Kg2 Qb6 31. Qf3 Rf8 32. Qg3 a5 33. Ne3 a4 34. Nc4 Qa7 35. Bxg7 Kxg7 36. f4 Na5 37. Nxa5 Qxa5 38. Nf3 axb3 39. axb3 Qa1 40. Re2 h6 41. h4 Ra8 42. g5 hxg5 43. hxg5 exf4 44. Qxf4 Rh8 45. Qxf6+ Qxf6 46. gxf6+ Kxf6 47. e5+ dxe5 48. Nxe5 Bh3+ 49. Kf3 Bf5 50. Kg2 Rd8 51. Bc4 Bd6 52. Nf3 g5 53. Nd4 Bd7 54. Ne6 Rg8 55. Rf2+ Ke5 56. Re2+ Kf6 57. Rf2+ Ke5 58. Re2+ Kf6 1/2-1/2

[Event "GER-ch 93rd"]
[Site "Magdeburg"]
[Date "2022.08.16"]
[Round "4"]
[White "Koehler, Christian Friedrich"]
[Black "Costa, Leonardo"]
[Result "0-1"]
[ECO "A36"]
[WhiteElo "2285"]
[BlackElo "2326"]
[PlyCount "80"]
[EventDate "2022.08.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. g3 Bg7 5. Bg2 0-0 6. Nge2 c5 7. 0-0 Nc6 8. d3 Ne8 9. Be3 Nc7 10. d4 cxd4 11. Nxd4 Ne5 12. b3 Ng4 13. Bc1 Ne6 14. Nde2 a6 15. h3 Nf6 16. Be3 Rb8 17. a4 a5 18. Qc2 b6 19. Rad1 Nd7 20. f4 Bb7 21. Nb5 Bc6 22. Ned4 Nxd4 23. Nxd4 Bxd4 24. Rxd4 Qc7 25. Rd2 Nc5 26. f5 e5 27. Bh6 Rfe8 28. Re2 Rb7 29. Qc3 Qd8 30. f6 Re6 31. Bg7 Rc7 32. Qe3 Nd7 33. Ref2 Qa8 34. Qh6 Nc5 35. Rf4 exf4 36. Rxf4 Re5 37. Bf3 g5 38. Rg4 Bxe4 39. Bh8 Ne6 40. Bxe4 Rxe4 0-1

[Event "GER-ch 93rd"]
[Site "Magdeburg"]
[Date "2022.08.16"]
[Round "3"]
[White "Westphal, Wolfgang"]
[Black "Koehler, Christian Friedrich"]
[Result "0-1"]
[ECO "B11"]
[WhiteElo "2175"]
[BlackElo "2285"]
[PlyCount "126"]
[EventDate "2022.08.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. Nc3 d5 2. e4 c6 3. Nf3 Bg4 4. h3 Bxf3 5. Qxf3 Nf6 6. exd5 cxd5 7. Bb5+ Nc6 8. 0-0 e6 9. d4 Be7 10. Ne2 Qb6 11. Qb3 0-0 12. c3 Rac8 13. Bd3 Qc7 14. Bf4 Qd7 15. Rad1 a6 16. Bb1 b5 17. Be5 Qb7 18. Bxf6 Bxf6 19. Nf4 g6 20. Nd3 Na5 21. Qa3 Nc4 22. Qb3 Be7 23. Rfe1 Bd6 24. Re2 Rc6 25. Ne5 Bxe5 26. dxe5 a5 27. Bd3 Rb8 28. Bxc4 Rxc4 29. Rd4 a4 30. Qd1 a3 31. Qd2 Qc6 32. Re3 axb2 33. Qxb2 Ra8 34. Rxc4 bxc4 35. Qd2 Ra3 36. Rf3 Qc7 37. Qf4 Rxa2 38. h4 Ra1+ 39. Kh2 Re1 40. Re3 Rxe3 41. Qxe3 f6 42. f4 fxe5 43. fxe5 Qf7 44. g3 Qf5 45. Kg2 Kg7 46. Qa7+ Kh6 47. Qe3+ g5 48. hxg5+ Qxg5 49. Qd4 Kg6 50. Kh2 h5 51. Qf2 Qxe5 52. Qf8 Qf6 53. Qg8+ Kf5 54. Qh7+ Qg6 55. Qc7 Ke4 56. Qb7 Qg4 57. Qb1+ Ke3 58. Qb8 Kd3 59. Qb4 Kc2 60. Qa3 h4 61. gxh4 Qxh4+ 62. Kg2 Qg5+ 63. Kh3 Qe3+ 0-1

[Event "GER-ch 93rd"]
[Site "Magdeburg"]
[Date "2022.08.15"]
[Round "2"]
[White "Koehler, Christian Friedrich"]
[Black "Vogel, Roven"]
[Result "0-1"]
[ECO "B21"]
[WhiteElo "2285"]
[BlackElo "2459"]
[PlyCount "26"]
[EventDate "2022.08.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. e4 c5 2. f4 d5 3. exd5 Nf6 4. Bb5+ Nbd7 5. c4 a6 6. Bxd7+ Bxd7 7. Nf3 e6 8. dxe6 Bxe6 9. b3 Bd6 10. d4 cxd4 11. Qxd4 Qe7 12. Be3 Ng4 13. Ne5 Rd8 0-1

[Event "GER-ch 93rd"]
[Site "Magdeburg"]
[Date "2022.08.14"]
[Round "1"]
[White "Parvanyan, Ashot"]
[Black "Koehler, Christian Friedrich"]
[Result "1-0"]
[ECO "A87"]
[WhiteElo "2424"]
[BlackElo "2285"]
[PlyCount "143"]
[EventDate "2022.08.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. Nf3 f5 2. g3 Nf6 3. Bg2 g6 4. 0-0 Bg7 5. c4 0-0 6. d4 d6 7. Nc3 Qe8 8. d5 Na6 9. Rb1 c5 10. dxc6 bxc6 11. b4 Bd7 12. Qa4 Nc7 13. Qa5 Ne6 14. Bb2 Qf7 15. b5 Rfc8 16. Nd2 Nc5 17. Ba3 Nfe4 18. Ncxe4 Nxe4 19. Rfc1 Qe6 20. Nxe4 fxe4 21. bxc6 Bxc6 22. e3 Qd7 23. Bb2 Bf6 24. Bxf6 exf6 25. Rb2 Rab8 26. Rd2 Qe7 27. Rcd1 Be8 28. Qd5+ Kg7 29. Qxe4 Qxe4 30. Bxe4 Rxc4 31. Bd5 Rcb4 32. Bb3 Ba4 33. Rxd6 Bxb3 34. axb3 Rxb3 35. Rd7+ Kh6 36. Rxa7 Rb1 37. Rxb1 Rxb1+ 38. Kg2 g5 39. g4 Kg6 40. Ra6 Rb7 41. Kg3 Rb2 42. f3 Re2 43. e4 Kg7 44. h4 gxh4+ 45. Kxh4 h6 46. Ra7+ Kf8 47. Kh5 Rf2 48. Kg6 Rxf3 49. Rf7+ Ke8 50. Rxf6 Rh3 51. Ra6 Ke7 52. Kf5 Rf3+ 53. Ke5 Rg3 54. Ra7+ Kf8 55. Kf4 Rg1 56. e5 Rf1+ 57. Ke4 Re1+ 58. Kf5 Rf1+ 59. Kg6 Rg1 60. Rf7+ Ke8 61. Rf4 Ke7 62. Kxh6 Ke6 63. g5 Kxe5 64. Rf2 Ke6 65. g6 Rh1+ 66. Kg7 Rg1 67. Re2+ Kd6 68. Kh7 Rg4 69. g7 Rh4+ 70. Kg6 Rg4+ 71. Kf6 Kd7 72. Re5 1-0

[Event "Bamberg op-A 3rd"]
[Site "Bamberg"]
[Date "2021.08.01"]
[Round "7"]
[White "Ewert, Hannes"]
[Black "Koehler, Christian Friedrich"]
[Result "1/2-1/2"]
[ECO "D10"]
[WhiteElo "2266"]
[BlackElo "2187"]
[PlyCount "53"]
[EventDate "2021.07.28"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. Bf4 Nc6 6. e3 Bf5 7. Qb3 Na5 8. Qa4+ Bd7 9. Qc2 e6 10. h3 Rc8 11. Bd3 Nc6 12. a3 Be7 13. Nf3 a6 14. 0-0 0-0 15. Rac1 h6 16. Ne5 Nxe5 17. Bxe5 Bc6 18. Qe2 Qd7 19. Rc2 Ba4 20. Nxa4 Qxa4 21. Rfc1 Rxc2 22. Qxc2 Qxc2 23. Rxc2 Rd8 24. Kf1 Kf8 25. Ke2 Bd6 26. Bxf6 gxf6 27. a4 1/2-1/2

[Event "Bamberg op-A 3rd"]
[Site "Bamberg"]
[Date "2021.07.31"]
[Round "5"]
[White "Koepke, Christian"]
[Black "Koehler, Christian Friedrich"]
[Result "1/2-1/2"]
[ECO "A35"]
[WhiteElo "2340"]
[BlackElo "2187"]
[PlyCount "99"]
[EventDate "2021.07.28"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Nf3 g6 7. cxd5 Nxd5 8. Qb3 Nxc3 9. Bc4 Nd5 10. Bxd5 e6 11. Bxc6+ bxc6 12. 0-0 Qd5 13. Qe3 Bg7 14. Bd2 0-0 15. Rfc1 Bb7 16. Rc5 Qd7 17. Ba5 Rfc8 18. Rac1 Rab8 19. b3 Ba8 20. Ne5 Bxe5 21. Qxe5 Rb5 22. h4 Rxc5 23. dxc5 Qe7 24. Bc3 f6 25. Qxf6 Qxf6 26. Bxf6 Rf8 27. Bg5 Rf5 28. b4 a6 29. Rc3 h5 30. f3 Rd5 31. Rc4 e5 32. Kf2 Bb7 33. g4 Bc8 34. Be3 Be6 35. gxh5 gxh5 36. Rc1 Rd7 37. a3 Bd5 38. Rg1+ Rg7 39. Bg5 Rf7 40. Rg3 Kf8 41. Ke3 Ke8 42. Bh6 Kd7 43. f4 exf4+ 44. Bxf4 Re7+ 45. Kd3 Rf7 46. Be3 Bf3 47. Rg6 Kc7 48. a4 Rd7+ 49. Bd4 Re7 50. Rg7 1/2-1/2

[Event "Bamberg op-A 3rd"]
[Site "Bamberg"]
[Date "2021.07.30"]
[Round "4"]
[White "Koehler, Christian Friedrich"]
[Black "Hacker, Jonas"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2187"]
[BlackElo "2355"]
[PlyCount "95"]
[EventDate "2021.07.28"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c3 e6 4. Bf4 Bd6 5. e3 c5 6. Nbd2 0-0 7. Bd3 Bxf4 8. exf4 Qb6 9. Qc2 cxd4 10. Nxd4 Qd6 11. Ne2 b6 12. Rd1 Ba6 13. 0-0 Bxd3 14. Qxd3 Nbd7 15. Ne4 Nxe4 16. Qxe4 Nf6 17. Qd3 Qc5 18. Nd4 Rac8 19. Rfe1 Rfe8 20. Re2 Qc4 21. Qxc4 Rxc4 22. Rde1 g6 23. f5 gxf5 24. Nxf5 Re4 25. Nd4 Rc8 26. f3 Rxe2 27. Rxe2 a6 28. g4 h6 29. Nxe6 fxe6 30. Rxe6 Kf7 31. Rxb6 d4 32. cxd4 Rc2 33. Rxa6 Rxb2 34. a4 Rd2 35. h4 Rxd4 36. Kg2 Nxg4 37. fxg4 Rxg4+ 38. Kh3 h5 39. a5 Ra4 40. Ra8 Kg7 41. a6 Kh7 42. a7 Kg7 43. Kg3 Ra3+ 44. Kf4 Ra4+ 45. Ke5 Ra5+ 46. Kd6 Ra1 47. Ke5 Ra5+ 48. Kd6 1/2-1/2

[Event "Bamberg op-A 3rd"]
[Site "Bamberg"]
[Date "2021.07.29"]
[Round "3"]
[White "Bunk, Wolfgang"]
[Black "Koehler, Christian Friedrich"]
[Result "0-1"]
[ECO "D15"]
[WhiteElo "2025"]
[BlackElo "2187"]
[PlyCount "104"]
[EventDate "2021.07.28"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 a6 5. Nf3 Bf5 6. Qb3 Ra7 7. a4 e6 8. Nh4 Be4 9. f3 dxc4 10. Bxc4 Bd5 11. Bxd5 cxd5 12. g3 Nc6 13. Ng2 Na5 14. Qc2 Bb4 15. 0-0 Qc7 16. Bd2 Qc4 17. Nf4 Nb3 18. Rad1 0-0 19. Nd3 Bd6 20. Nc1 Nxd2 21. Rxd2 Rc8 22. N1e2 b5 23. axb5 axb5 24. Qb1 Rac7 25. Rc1 g6 26. Nd1 Qb4 27. Rxc7 Rxc7 28. Ndc3 Qc4 29. Qd3 b4 30. Nb5 Rc6 31. Nxd6 Rxd6 32. Qxc4 dxc4 33. Rc2 Rc6 34. Kf2 b3 35. Rc1 Nd5 36. Ra1 c3 37. bxc3 Nxc3 38. Nxc3 Rxc3 39. Ke2 Rc2+ 40. Kd3 Rxh2 41. Ra8+ Kg7 42. Rb8 b2 43. e4 Kf6 44. Rb7 h5 45. Ke3 g5 46. f4 g4 47. f5 Rg2 48. e5+ Kxf5 49. Rxf7+ Kg6 50. Rb7 Rxg3+ 51. Ke4 Rg2 52. Rb3 Kg5 0-1

[Event "Karlsruhe Grenke op"]
[Site "Karlsruhe"]
[Date "2019.04.22"]
[Round "9"]
[White "Koehler, Christian Friedrich"]
[Black "Ashwath, R."]
[Result "1/2-1/2"]
[ECO "D04"]
[WhiteElo "2245"]
[BlackElo "2388"]
[PlyCount "97"]
[EventDate "2019.04.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. e3 g6 4. Nbd2 Bg7 5. Bd3 b6 6. 0-0 Bb7 7. Qe2 c5 8. b3 Nc6 9. a3 0-0 10. Bb2 Nd7 11. c4 dxc4 12. Nxc4 cxd4 13. exd4 Nf6 14. Rfd1 Nd5 15. Qe1 Rc8 16. b4 e6 17. Bf1 Nce7 18. a4 Nf4 19. Ra3 Nf5 20. Nce5 Qd6 21. a5 h6 22. axb6 axb6 23. Ra7 Rc7 24. b5 Rfc8 25. g3 Nd5 26. Ba3 Qd8 27. Rc1 Rxc1 28. Bxc1 Rc7 29. h4 Qb8 30. Ra1 Nf6 31. Bf4 Qc8 32. Bg2 Nd5 33. Bd2 Nd6 34. Bf1 Nc3 35. Bxc3 Bxf3 36. Nxf3 Rxc3 37. Ne5 Bxe5 38. dxe5 Nf5 39. Qe4 Qc5 40. Kg2 Kg7 41. Ra7 Rc2 42. Be2 Rd2 43. Qb7 Ne7 44. Qxe7 Qxe7 45. Rxe7 Rxe2 46. Rb7 Rxe5 47. Rxb6 g5 48. hxg5 hxg5 49. g4 1/2-1/2

[Event "Karlsruhe Grenke op"]
[Site "Karlsruhe"]
[Date "2019.04.22"]
[Round "8"]
[White "Kramer, Julian"]
[Black "Koehler, Christian Friedrich"]
[Result "0-1"]
[ECO "C73"]
[WhiteElo "2369"]
[BlackElo "2245"]
[PlyCount "72"]
[EventDate "2019.04.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. Bxc6+ bxc6 6. d4 exd4 7. Nxd4 c5 8. Nc6 Qd7 9. Na5 Qa4 10. Qd5 Rb8 11. Qc6+ Qxc6 12. Nxc6 Rb6 13. Na5 f5 14. exf5 Bxf5 15. Nc4 Rb8 16. Ne3 Be6 17. c4 g6 18. Nc3 Bg7 19. Kd2 Ne7 20. b3 Rf8 21. f3 Kd7 22. Ba3 Bh6 23. Rae1 Nf5 24. Ncd1 a5 25. Kc3 a4 26. bxa4 Ra8 27. Nxf5 Bxf5 28. Ne3 Bg7+ 29. Kd2 Rxa4 30. Nd5 Bh6+ 31. f4 Rxa3 32. Re7+ Kd8 33. Rxh7 c6 34. g4 cxd5 35. Rxh6 Rxa2+ 36. Kc3 Be4 0-1

[Event "Karlsruhe Grenke op"]
[Site "Karlsruhe"]
[Date "2019.04.21"]
[Round "7"]
[White "Koehler, Christian Friedrich"]
[Black "Zeller, Frank"]
[Result "1/2-1/2"]
[ECO "A47"]
[WhiteElo "2245"]
[BlackElo "2377"]
[PlyCount "104"]
[EventDate "2019.04.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. e3 b6 4. Nbd2 Bb7 5. Bd3 c5 6. 0-0 Be7 7. b3 cxd4 8. Nxd4 Qc7 9. Bb2 a6 10. c4 d6 11. Re1 Nbd7 12. Bf1 g5 13. b4 g4 14. a4 Rg8 15. a5 bxa5 16. Rxa5 h5 17. Qa4 Rb8 18. Qa1 h4 19. Ne2 h3 20. g3 Qc6 21. e4 Bd8 22. Ra3 Nh7 23. Nd4 Qb6 24. Nc2 Bg5 25. Bd4 Qc6 26. f4 gxf3 27. Nxf3 Bf4 28. Kh1 f5 29. b5 axb5 30. Nb4 Qc8 31. gxf4 fxe4 32. Ng5 Nxg5 33. fxg5 e3+ 34. Nd5 bxc4 35. Bxe3 Bxd5+ 36. Kg1 Ne5 37. Qd1 Rb7 38. Qh5+ Rf7 39. Be2 Bf3 40. Qxh3 Bxe2 41. Rxe2 Rb7 42. Rea2 Rb1+ 43. Kg2 Qb7+ 44. Kf2 Rf8+ 45. Ke2 Rb2+ 46. Rxb2 Qxb2+ 47. Bd2 Rf2+ 48. Kxf2 Qxd2+ 49. Kf1 Qc1+ 50. Ke2 Qb2+ 51. Kf1 Qc1+ 52. Ke2 Qb2+ 1/2-1/2

[Event "Karlsruhe Grenke op"]
[Site "Karlsruhe"]
[Date "2019.04.19"]
[Round "2"]
[White "Antal, Gergely"]
[Black "Koehler, Christian Friedrich"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "2552"]
[BlackElo "2245"]
[PlyCount "29"]
[EventDate "2019.04.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. 0-0 0-0 6. Re1 d6 7. a4 Kh8 8. a5 a6 9. h3 Ng8 10. Nc3 f5 11. Nd5 Nf6 12. Ng5 Nxd5 13. Nxh7 Nf6 14. Nxf6 gxf6 15. Qh5+ 1-0

[Event "NRW Class2 1819"]
[Site "Germany"]
[Date "2019.04.14"]
[Round "8.3"]
[White "Koehler, Christian Friedrich"]
[Black "Schmitz, Philipp"]
[Result "0-1"]
[ECO "B94"]
[WhiteElo "2236"]
[BlackElo "2183"]
[PlyCount "46"]
[EventDate "2018.09.16"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Godesberg"]
[BlackTeam "Iserlohn Koenigsspringer"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 Nbd7 7. Bc4 e6 8. f3 b5 9. Bb3 Nc5 10. Qd2 Qc7 11. 0-0-0 Bd7 12. Kb1 Be7 13. a3 Rb8 14. Ba2 a5 15. b4 axb4 16. axb4 Na4 17. Nxa4 bxa4 18. c3 Nxe4 19. fxe4 Bxg5 20. Qxg5 Qxc3 21. Nc2 Rxb4+ 22. Nxb4 Qxb4+ 23. Kc2 0-0 0-1

[Event "NRW Class2 1819"]
[Site "Germany"]
[Date "2019.03.17"]
[Round "7.1"]
[White "Forchert, Martin"]
[Black "Koehler, Christian Friedrich"]
[Result "1/2-1/2"]
[ECO "C47"]
[WhiteElo "2270"]
[BlackElo "2237"]
[PlyCount "59"]
[EventDate "2018.09.16"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Bielefeld"]
[BlackTeam "Godesberg"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. Nxc6 bxc6 7. Bd3 d5 8. exd5 cxd5 9. 0-0 0-0 10. Nb5 Bg4 11. f3 Bd7 12. c3 Bxb5 13. Bxb5 Bc5+ 14. Kh1 Qd6 15. b4 Bb6 16. Bg5 c6 17. Bd3 Rfe8 18. Qd2 Re7 19. Rae1 Rae8 20. g3 a5 21. Rxe7 Qxe7 22. bxa5 Bxa5 23. Qc2 h6 24. Bd2 Nd7 25. Re1 Qd8 26. Rxe8+ Qxe8 27. c4 Bxd2 28. Qxd2 d4 29. Be4 c5 30. Kg2 1/2-1/2

[Event "NRW Class2 1819"]
[Site "Germany"]
[Date "2019.02.17"]
[Round "6.2"]
[White "Bosch, Jeroen"]
[Black "Koehler, Christian Friedrich"]
[Result "1-0"]
[ECO "A28"]
[WhiteElo "2397"]
[BlackElo "2237"]
[PlyCount "89"]
[EventDate "2018.09.16"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Plettenberg"]
[BlackTeam "Godesberg"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. a3 d5 5. cxd5 Nxd5 6. Qc2 Nxc3 7. bxc3 Bd6 8. g3 Qe7 9. d3 0-0 10. Bg2 Bd7 11. 0-0 Rae8 12. Ng5 Nd8 13. Ne4 Bc6 14. f3 Qd7 15. Nxd6 cxd6 16. e4 d5 17. a4 f6 18. Be3 a6 19. d4 exd4 20. cxd4 Nf7 21. Rfe1 Rc8 22. Qb3 Rfe8 23. Red1 Rcd8 24. e5 fxe5 25. dxe5 Nxe5 26. Bb6 Rc8 27. Bd4 Nc4 28. Bf1 Qf7 29. f4 Nd6 30. Bh3 Rcd8 31. Bb6 Ra8 32. Bd4 Ne4 33. Qb2 Re7 34. Bg2 Rae8 35. Be5 h6 36. a5 Kh8 37. Qd4 Kh7 38. Rab1 Qf5 39. Rbc1 Re6 40. Re1 R8e7 41. Rxe4 dxe4 42. Rxc6 Rxe5 43. fxe5 Qxe5 44. Qxe5 Rxe5 45. Rc4 1-0

[Event "GER CupT 1819 prel5"]
[Site "Ludwigshafen"]
[Date "2019.01.27"]
[Round "2.1"]
[White "Rausis, Igors"]
[Black "Koehler, Christian Friedrich"]
[Result "1-0"]
[ECO "D11"]
[WhiteElo "2653"]
[BlackElo "2234"]
[PlyCount "37"]
[EventDate "2019.01.26"]
[EventType "team-k.o."]
[EventRounds "2"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]
[WhiteTeam "Emmendingen"]
[BlackTeam "Godesberg"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. g3 Bf5 5. Nc3 h6 6. Qb3 Qb6 7. c5 Qc7 8. Bg2 Nbd7 9. Bf4 Qc8 10. 0-0 g5 11. Be5 Bg7 12. e3 0-0 13. Rac1 g4 14. Nh4 Bd3 15. Nxd5 Nxd5 16. Qxd3 Bxe5 17. Bxd5 Bg7 18. Nf5 Re8 19. Nxh6+ 1-0

[Event "GER CupT 1819 prel5"]
[Site "Ludwigshafen"]
[Date "2019.01.26"]
[Round "1.2"]
[White "Koehler, Christian Friedrich"]
[Black "Kemper, Yannik"]
[Result "1-0"]
[ECO "A36"]
[WhiteElo "2234"]
[BlackElo "1877"]
[PlyCount "83"]
[EventDate "2019.01.26"]
[EventType "team-k.o."]
[EventRounds "2"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]
[WhiteTeam "Godesberg"]
[BlackTeam "Ludwigshafen"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. Nc3 0-0 5. e4 c5 6. Nge2 Nc6 7. d3 Ne8 8. a3 Nc7 9. Rb1 Ne6 10. b4 d6 11. 0-0 Rb8 12. Be3 Ncd4 13. Qd2 Nxe2+ 14. Nxe2 Nd4 15. Nxd4 cxd4 16. Bg5 f6 17. Bh6 e5 18. Bxg7 Kxg7 19. f4 Be6 20. f5 Bf7 21. h4 b6 22. Bh3 Qe7 23. Rf2 Be8 24. Rbf1 Bd7 25. g4 Rf7 26. g5 Rbf8 27. Kh2 Qd8 28. Rf3 fxg5 29. hxg5 Qc8 30. Qf2 gxf5 31. exf5 Kg8 32. f6 Bxh3 33. Rxh3 Qg4 34. Rg1 Qf4+ 35. Qxf4 exf4 36. Rf1 Re8 37. Rxf4 Re2+ 38. Kg3 Re3+ 39. Kg4 Re2 40. Rxd4 Rd7 41. Re4 Rg2+ 42. Kf5 1-0

[Event "NRW Class2 1819"]
[Site "Germany"]
[Date "2019.01.13"]
[Round "5.3"]
[White "Koehler, Christian Friedrich"]
[Black "Rosen, Bernd"]
[Result "1-0"]
[ECO "C02"]
[WhiteElo "2219"]
[BlackElo "2293"]
[PlyCount "147"]
[EventDate "2018.09.16"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Godesberg"]
[BlackTeam "Essen Katernberg"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Qb6 5. Nf3 Nc6 6. a3 Nge7 7. dxc5 Qc7 8. Be3 Ng6 9. Bb5 Be7 10. Bd4 0-0 11. Bxc6 bxc6 12. 0-0 a5 13. b4 Ba6 14. Re1 Rfb8 15. g3 Ra7 16. Nbd2 Bb5 17. Qc1 Ba4 18. Rb1 Rab7 19. Nb3 Bxb3 20. Rxb3 Nf8 21. Rb1 Nd7 22. Ra1 Ra8 23. Nd2 Qb8 24. f4 Bd8 25. Nb3 Rba7 26. Qb2 Qb5 27. Nd2 Qb7 28. Nf3 Ra6 29. Ra2 Qb5 30. Kf2 Rb8 31. Rea1 Qc4 32. Qc2 axb4 33. cxb4 Qxc2+ 34. Rxc2 f6 35. Re2 Kf7 36. Bc3 Rba8 37. Bb2 fxe5 38. fxe5 h6 39. Rf1 Bc7 40. Ke1 Kg8 41. Nd2 Rf8 42. Rxf8+ Kxf8 43. Re3 Ke7 44. Bd4 Ra8 45. Nf3 Nb8 46. Kd2 Na6 47. Kc3 Bd8 48. Kb3 Kd7 49. Bc3 Rb8 50. Kc2 Nc7 51. Nd4 Nb5 52. Kb3 Bc7 53. Nxb5 cxb5 54. Rf3 Ke8 55. a4 bxa4+ 56. Kxa4 Ra8+ 57. Kb3 Rb8 58. g4 Bd8 59. h3 Be7 60. Bd4 Bg5 61. Rf2 Bh4 62. Rf1 Bg5 63. Ra1 Bd2 64. Ra4 Kd7 65. Ra7+ Ke8 66. Bc3 Be3 67. Kc2 d4 68. Be1 Bf4 69. Rxg7 Kf8 70. Rg6 Ke7 71. Kd3 Bxe5 72. Rxh6 Rf8 73. Rh7+ Kd8 74. Ke4 1-0

[Event "NRW Class2 1819"]
[Site "Germany"]
[Date "2018.12.09"]
[Round "4.3"]
[White "Engels, Natia"]
[Black "Koehler, Christian Friedrich"]
[Result "1/2-1/2"]
[ECO "D12"]
[WhiteElo "2068"]
[BlackElo "2224"]
[PlyCount "98"]
[EventDate "2018.09.16"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Suedlohn"]
[BlackTeam "Godesberg"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 d5 2. c4 c6 3. e3 Bf5 4. Nc3 e6 5. Nf3 Nf6 6. Ne5 h6 7. cxd5 exd5 8. Bd3 Bxd3 9. Qxd3 Nbd7 10. f4 Bb4 11. 0-0 0-0 12. Bd2 Qe7 13. a3 Bxc3 14. Bxc3 a5 15. b4 a4 16. b5 c5 17. dxc5 Nxc5 18. Bb4 b6 19. Qd4 Nfd7 20. Nxd7 Qxd7 21. Rad1 Qxb5 22. Bc3 f6 23. Qxd5+ Kh8 24. Rb1 Qa6 25. Qf5 Rae8 26. Rf3 Qc4 27. Bb4 Qe4 28. Qxe4 Rxe4 29. Rd1 Rfe8 30. Rd6 R8e6 31. Rxe6 Nxe6 32. g4 Nc7 33. g5 fxg5 34. fxg5 Rg4+ 35. Rg3 Rxg5 36. Rxg5 hxg5 37. e4 Kh7 38. Kg2 Kg6 39. Kg3 Kh5 40. Be7 b5 41. Bd6 Ne6 42. Kf3 Kg6 43. Ke3 Kf6 44. Kd3 Nf4+ 45. Kd4 Ne2+ 46. Kc5 Ke6 47. Bf8 Kf7 48. Bd6 Ke6 49. Bf8 Kf7 1/2-1/2

[Event "NRW Class2 1819"]
[Site "Germany"]
[Date "2018.11.18"]
[Round "3.3"]
[White "Koehler, Christian Friedrich"]
[Black "Kohlweyer, Bernd"]
[Result "1/2-1/2"]
[ECO "A46"]
[WhiteElo "2244"]
[BlackElo "2296"]
[PlyCount "187"]
[EventDate "2018.09.16"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Godesberg"]
[BlackTeam "Duesseldorf II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. Nf3 e6 3. e3 c5 4. Bd3 b6 5. b3 Bb7 6. Bb2 g6 7. Nbd2 Bg7 8. dxc5 bxc5 9. Ne4 0-0 10. Nxf6+ Bxf6 11. Bxf6 Qxf6 12. 0-0 Bxf3 13. gxf3 Nc6 14. f4 d5 15. Qd2 Rfd8 16. c3 e5 17. fxe5 Nxe5 18. f4 Nc4 19. Qe2 Nd6 20. Rac1 Re8 21. Qf3 Rad8 22. c4 dxc4 23. Bxc4 Nxc4 24. Rxc4 Rd3 25. Re4 Qc6 26. Re7 Qb5 27. Qb7 Qxb7 28. Rxb7 Rexe3 29. Rxa7 Re2 30. Rf2 Rdd2 31. Rxe2 Rxe2 32. a4 Rb2 33. Rc7 Rxb3 34. Rxc5 Rb4 35. f5 Rxa4 36. fxg6 hxg6 37. Kg2 Kg7 38. Rc7 Kf6 39. Kf3 Rd4 40. Kg3 Ke6 41. h3 f6 42. Ra7 g5 43. Ra6+ Ke5 44. Ra5+ Rd5 45. Ra8 Rd3+ 46. Kg4 Ke6 47. Ra6+ Kf7 48. Ra8 Rd4+ 49. Kg3 f5 50. Ra6 Rd3+ 51. Kg2 Re3 52. Rb6 Re6 53. Rb8 Kf6 54. Rf8+ Ke5 55. Kf3 Ra6 56. Re8+ Kf6 57. Rf8+ Ke6 58. Rg8 Ra3+ 59. Kg2 Kf6 60. Re8 Rb3 61. Re2 f4 62. Ra2 Rg3+ 63. Kh2 Rd3 64. Kg2 Re3 65. Ra6+ Kf5 66. Ra5+ Kg6 67. Ra6+ Kh5 68. Ra8 Re2+ 69. Kf3 Re3+ 70. Kg2 Kg6 71. Ra6+ Kf5 72. Ra5+ Re5 73. Ra2 Rd5 74. Rc2 Rd3 75. Rc5+ Ke4 76. Rxg5 Rd2+ 77. Kg1 Kf3 78. Rg8 Rd1+ 79. Kh2 Kf2 80. Rf8 f3 81. h4 Ke2 82. Re8+ Kf1 83. Kg3 f2 84. Rf8 Rd3+ 85. Kg4 Kg2 86. Rxf2+ Kxf2 87. h5 Ke3 88. h6 Ke4 89. h7 Rd1 90. Kg5 Rh1 91. Kg6 Ke5 92. Kg7 Ke6 93. h8Q Rxh8 94. Kxh8 1/2-1/2

[Event "Bayern-chI Bank Hofmann 22nd"]
[Site "Tegernsee"]
[Date "2018.10.29"]
[Round "3"]
[White "Koehler, Christian Friedrich"]
[Black "Fier, Alexandr"]
[Result "0-1"]
[ECO "D04"]
[WhiteElo "2241"]
[BlackElo "2558"]
[PlyCount "102"]
[EventDate "2018.10.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Bd3 0-0 5. 0-0 d5 6. Nbd2 b6 7. c3 Ba6 8. Bxa6 Nxa6 9. Qe2 Qc8 10. e4 c5 11. exd5 Nxd5 12. dxc5 Nxc5 13. Ne4 e6 14. Nxc5 Qxc5 15. c4 Nb4 16. a3 Nc6 17. Be3 Qh5 18. Rad1 Ne5 19. Rd2 Ng4 20. Rfd1 Nxe3 21. fxe3 Rac8 22. b3 Qc5 23. a4 Qa3 24. Rd3 a6 25. Nd4 Rc7 26. Kf2 Qe7 27. Nf3 g5 28. Kg1 g4 29. Nd4 h5 30. e4 Be5 31. g3 Qg5 32. Nc2 Qg6 33. Rd7 Rxd7 34. Rxd7 f5 35. exf5 Qxf5 36. Qd3 Qf2+ 37. Kh1 Rf5 38. Rd8+ Kg7 39. Rd7+ Kf6 40. Rh7 Qf1+ 41. Qxf1 Rxf1+ 42. Kg2 Rb1 43. Nb4 Rb2+ 44. Kf1 Rxh2 45. Nxa6 Bxg3 46. c5 Bf4 47. cxb6 g3 48. b7 g2+ 49. Kf2 Be3+ 50. Kxe3 g1Q+ 51. Kd3 Qc1 0-1

[Event "Bayern-chI Bank Hofmann 22nd"]
[Site "Tegernsee"]
[Date "2018.10.28"]
[Round "2"]
[White "Braun, Arik"]
[Black "Koehler, Christian Friedrich"]
[Result "1/2-1/2"]
[ECO "C55"]
[WhiteElo "2603"]
[BlackElo "2241"]
[PlyCount "199"]
[EventDate "2018.10.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. 0-0 0-0 6. a4 d6 7. h3 h6 8. Re1 Nh7 9. Nc3 Ng5 10. Nd5 Nxf3+ 11. Qxf3 Nd4 12. Qd1 c6 13. Nxe7+ Qxe7 14. c3 Ne6 15. Qf3 Qh4 16. Kh2 Ng5 17. Qg3 Qxg3+ 18. Kxg3 Be6 19. h4 Nh7 20. Bxe6 fxe6 21. Be3 Nf6 22. f3 a6 23. Rad1 Rae8 24. b4 Kf7 25. c4 d5 26. Bc5 Rg8 27. Bd6 Nd7 28. h5 g6 29. hxg6+ Rxg6+ 30. Kh2 Kf6 31. Re2 Rg5 32. a5 Nf8 33. exd5 exd5 34. f4 Rh5+ 35. Kg1 Ng6 36. fxe5+ Nxe5 37. Rde1 Rg5 38. Re3 d4 39. Rh3 Kg6 40. Re4 Re6 41. Bc7 h5 42. Rxd4 Ng4 43. Rf3 Re1+ 44. Rf1 Re2 45. Rd8 Kh7 46. Rd7+ Rg7 47. Rxg7+ Kxg7 48. Bf4 Rb2 49. Bd6 Rd2 50. Re1 Rxd3 51. Bc5 Rd7 52. g3 Kf6 53. Re4 Kf5 54. Rf4+ Kg5 55. Re4 Kf5 56. Rf4+ Ke5 57. Kf1 Nf6 58. Rh4 Rd3 59. Kg2 Rd2+ 60. Kh3 Rd7 61. Bb6 Rd1 62. Rf4 Rh1+ 63. Kg2 Rd1 64. Rh4 Rd2+ 65. Kf3 Rd7 66. Ke2 Ke6 67. Rf4 Ke5 68. Rh4 Ke6 69. Be3 Rh7 70. Rf4 Ng4 71. Bd4 Rd7 72. Bc3 Rd8 73. Re4+ Kf7 74. Bd4 Rd6 75. Rf4+ Kg6 76. Kd3 Nf6 77. Ke3 Ng4+ 78. Ke4 Re6+ 79. Kd3 Rd6 80. Kc3 Rd8 81. Re4 Kf7 82. Bc5 Rd7 83. Re2 Nf6 84. Re5 Kg6 85. Be3 Rh7 86. Rg5+ Kf7 87. Rf5 Kg6 88. Rf4 Rd7 89. Rd4 Re7 90. Kd3 Ng4 91. Rd6+ Kf5 92. Bd4 Rh7 93. Rd8 Ne5+ 94. Kc3 Nf3 95. Bf2 Kg4 96. Rf8 Ng5 97. Rg8 Kf5 98. Rf8+ Kg4 99. Rg8 Kf5 100. Rf8+ 1/2-1/2

[Event "NRW Class2 1819"]
[Site "Germany"]
[Date "2018.10.14"]
[Round "2.3"]
[White "Hille, Ralph Ingo"]
[Black "Koehler, Christian Friedrich"]
[Result "0-1"]
[ECO "A01"]
[WhiteElo "2066"]
[BlackElo "2268"]
[PlyCount "192"]
[EventDate "2018.09.16"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Sodingen/Castrop SK"]
[BlackTeam "Godesberg"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. b3 e5 2. Bb2 Nc6 3. e3 Nf6 4. Nf3 e4 5. Nd4 Nxd4 6. Bxd4 d5 7. c4 c6 8. Nc3 Be7 9. cxd5 cxd5 10. Be2 0-0 11. 0-0 b6 12. f3 Bb7 13. Qe1 exf3 14. Bxf3 Ne4 15. Nxe4 dxe4 16. Qg3 f6 17. Bg4 Ba6 18. Rf2 Qd6 19. Qxd6 Bxd6 20. Rc1 Rfe8 21. g3 Bd3 22. Rc6 Bb4 23. Bc3 Bb5 24. Re6 Bf8 25. Rf4 Bd3 26. Kf2 Rxe6 27. Bxe6+ Kh8 28. g4 Re8 29. Bd5 h6 30. h4 Bd6 31. Rf5 Kh7 32. h5 Re7 33. Ke1 Ba6 34. Bc4 Bc8 35. Rd5 Bg3+ 36. Kf1 Bxg4 37. Be2 Bh3+ 38. Kg1 Rd7 39. Rxd7 Bxd7 40. Kg2 Bd6 41. d4 Be6 42. Be1 Bd7 43. Bg3 Bb4 44. Bb8 a5 45. a4 Kg8 46. Bc7 Kf7 47. Bxb6 Ke6 48. Bc7 Bd2 49. Bc4+ Ke7 50. Kf2 Be8 51. Bd5 Bxh5 52. Bxe4 Bd1 53. Bd5 Kd7 54. Bb6 f5 55. Bc5 g5 56. Bf8 h5 57. Bh6 g4 58. Bg5 Kd6 59. Bf7 Bc2 60. Bxh5 Bxb3 61. Be8 Bd5 62. Bf4+ Ke6 63. Bb5 Bb4 64. Ba6 Be4 65. Bc8+ Ke7 66. Bg5+ Kd6 67. Bf4+ Ke7 68. Bg5+ Kf7 69. Ba6 Bc2 70. Bc4+ Kg6 71. Bd8 Bxa4 72. Be6 Bc2 73. Bc7 a4 74. d5 Kf6 75. Bb6 Bc3 76. Bc5 Ke5 77. Ba3 Ba5 78. Ke2 g3 79. Kf3 Be1 80. Bb2+ Kd6 81. Ba3+ Kc7 82. d6+ Kd8 83. Bb2 Be4+ 84. Kf4 Bc6 85. Bf6+ Ke8 86. d7+ Bxd7 87. Bd5 Be6 88. Bc6+ Kf7 89. Bd4 Bf2 90. Kf3 a3 91. Be5 a2 92. Bc3 Bb3 93. Kg2 Ke6 94. Kf3 Bd5+ 95. Bxd5+ Kxd5 96. Bd4 f4 0-1

[Event "NRW Class2 1819"]
[Site "Germany"]
[Date "2018.09.16"]
[Round "1.2"]
[White "Nagel, Bernhard"]
[Black "Koehler, Christian Friedrich"]
[Result "1/2-1/2"]
[ECO "D19"]
[WhiteElo "2159"]
[BlackElo "2270"]
[PlyCount "130"]
[EventDate "2018.09.16"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Koeln Lasker"]
[BlackTeam "Godesberg"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 dxc4 5. a4 Bf5 6. e3 e6 7. Bxc4 Bb4 8. 0-0 0-0 9. Qe2 Bg4 10. h3 Bh5 11. Rd1 Nbd7 12. e4 Qe7 13. e5 Nd5 14. Nxd5 cxd5 15. Bd3 Rac8 16. g4 Bg6 17. Bg5 Qe8 18. Rdc1 Bxd3 19. Qxd3 Nb8 20. Qb5 Qxb5 21. axb5 a6 22. bxa6 Nxa6 23. Kf1 h6 24. Be3 Rfe8 25. Ke2 Kf8 26. h4 Ke7 27. h5 Kd7 28. Kd1 Be7 29. Ne1 Nb4 30. Ra7 Rxc1+ 31. Kxc1 Kc6 32. Ra3 Kd7 33. Kb1 Rc8 34. Rc3 Rc4 35. f4 Nc6 36. Nf3 Bb4 37. Rd3 Ne7 38. Bd2 Bxd2 39. Nxd2 Rc8 40. Rb3 Kc7 41. Rc3+ Nc6 42. Nf3 Kd7 43. f5 Ra8 44. Ra3 Rc8 45. Rd3 Ne7 46. Nh4 Rc4 47. b3 Rc8 48. Kb2 Nc6 49. Rd2 Ke8 50. Nf3 Ke7 51. Rf2 Nb4 52. f6+ Kf8 53. Rd2 Ra8 54. g5 hxg5 55. Nxg5 Ra2+ 56. Kc3 Rxd2 57. Kxd2 Nc6 58. Kc3 b5 59. fxg7+ Kxg7 60. h6+ Kxh6 61. Nxf7+ Kg6 62. Nd6 b4+ 63. Kd3 Na5 64. Kc2 Nc6 65. Kd3 Na5 1/2-1/2

[Event "NRW Class2 1718"]
[Site "Germany"]
[Date "2018.04.29"]
[Round "9.2"]
[White "Gassmann, Volker"]
[Black "Koehler, Christian Friedrich"]
[Result "1/2-1/2"]
[ECO "D11"]
[WhiteElo "2153"]
[BlackElo "2182"]
[PlyCount "97"]
[EventDate "2017.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Essen Katernberg  II"]
[BlackTeam "Godesberg"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bg4 5. Nc3 e6 6. Bd2 Nbd7 7. cxd5 exd5 8. h3 Bh5 9. Be2 Bd6 10. a3 Ne4 11. Qb3 Nxd2 12. Nxd2 Bxe2 13. Nxe2 Qb6 14. 0-0 0-0 15. Rfd1 Qxb3 16. Nxb3 f5 17. Rd3 Nb6 18. Na5 Rf7 19. h4 g6 20. g3 h6 21. Kg2 Kg7 22. Rb3 g5 23. hxg5 hxg5 24. a4 Rb8 25. Kf3 Kg6 26. Kg2 Rc7 27. Rd3 Bb4 28. Nb3 Nc4 29. Rb1 b5 30. axb5 Rxb5 31. Nbc1 Rcb7 32. b3 Nd2 33. Ra1 Ne4 34. f3 Nf6 35. Nc3 Ra5 36. Na4 g4 37. Ne2 gxf3+ 38. Kxf3 Ne4 39. Rc1 Ra6 40. Nf4+ Kf6 41. Rh1 Bf8 42. Rh8 Kg7 43. Rh2 Ng5+ 44. Kg2 Rxa4 45. bxa4 Rb2+ 46. Kh1 Rb1+ 47. Kg2 Rb2+ 48. Kh1 Rb1+ 49. Kg2 1/2-1/2

[Event "NRW Class2 1718"]
[Site "Germany"]
[Date "2018.04.08"]
[Round "8.3"]
[White "Adamski, Jan"]
[Black "Koehler, Christian Friedrich"]
[Result "1/2-1/2"]
[ECO "A09"]
[WhiteElo "2229"]
[BlackElo "2182"]
[PlyCount "85"]
[EventDate "2017.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Letmathe"]
[BlackTeam "Godesberg"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 d5 2. c4 d4 3. g3 Nc6 4. Bg2 e5 5. 0-0 Nf6 6. d3 Bd6 7. a3 a5 8. e3 0-0 9. exd4 exd4 10. Bg5 h6 11. Bxf6 Qxf6 12. Nbd2 Qd8 13. Ne1 Ne7 14. Nc2 c5 15. b4 Ra7 16. bxc5 Bxc5 17. Ne4 b6 18. Ne1 Be6 19. Nf3 Ng6 20. Re1 Qc7 21. Qc2 Rd8 22. Nxc5 bxc5 23. Rab1 Rb8 24. Rxb8+ Qxb8 25. Rb1 Qd6 26. Nd2 Ne5 27. Ne4 Qf8 28. Rb5 Nd7 29. Qb1 Kh7 30. Qe1 a4 31. Nd2 Qd6 32. Ne4 Qc7 33. Qe2 Bf5 34. f4 g6 35. h3 Be6 36. Kh2 Kg7 37. Nd2 Nf6 38. Ne4 Nd7 39. Nd2 Kf8 40. Ne4 Kg8 41. Nd2 Kg7 42. Ne4 Bf5 43. Nd2 1/2-1/2

[Event "NRW Class2 1718"]
[Site "Germany"]
[Date "2018.03.11"]
[Round "7.2"]
[White "Arndt, Stefan"]
[Black "Koehler, Christian Friedrich"]
[Result "1/2-1/2"]
[ECO "B03"]
[WhiteElo "2166"]
[BlackElo "2182"]
[PlyCount "104"]
[EventDate "2017.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Ennepe Ruhr Sued"]
[BlackTeam "Godesberg"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Bc4 e6 5. Nf3 c5 6. exd6 Bxd6 7. Bxd5 exd5 8. dxc5 Bxc5 9. Nc3 d4 10. Ne4 Bb4+ 11. Bd2 Be7 12. 0-0 Nc6 13. Bg5 f6 14. Bf4 0-0 15. Ng3 Qd5 16. Qd3 Bg4 17. c4 Qd7 18. a3 g5 19. Bd2 a5 20. h3 Be6 21. Rfe1 Bc5 22. Ne4 b6 23. b3 Bf5 24. Qe2 Kh8 25. g4 Bg6 26. Nxc5 bxc5 27. Qe6 Qxe6 28. Rxe6 Nd8 29. Rb6 Be4 30. Ne1 Rf7 31. f3 Bg6 32. f4 gxf4 33. Bxf4 Rb7 34. Rxf6 Rxb3 35. h4 Bf7 36. Be5 Kg8 37. Nf3 Bxc4 38. Nd2 Bd5 39. Nxb3 Bxb3 40. Bd6 Nb7 41. Raf1 Nxd6 42. Rxd6 Re8 43. Rc1 Re5 44. Kf2 Kf7 45. Re1 Ke7 46. Rb6 Rxe1 47. Kxe1 c4 48. Kd2 a4 49. Rh6 c3+ 50. Kd3 Bc4+ 51. Kc2 Bb3+ 52. Kd3 Bc4+ 1/2-1/2

[Event "NRW Class2 1718"]
[Site "Germany"]
[Date "2018.02.18"]
[Round "6"]
[White "De Schampheleire, Glen"]
[Black "Koehler, Christian Friedrich"]
[Result "1/2-1/2"]
[ECO "A11"]
[WhiteElo "2342"]
[BlackElo "2182"]
[PlyCount "108"]
[EventDate "2017.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Plettenberg"]
[BlackTeam "Godesberg"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 d5 2. g3 c6 3. Bg2 Nf6 4. 0-0 Bf5 5. d3 h6 6. c4 e6 7. Qb3 Qb6 8. Be3 Qxb3 9. axb3 a6 10. Nc3 Nbd7 11. Bd4 Bg4 12. Rfe1 Bxf3 13. exf3 Bc5 14. Ne2 Bxd4 15. Nxd4 Nc5 16. Bf1 dxc4 17. dxc4 0-0-0 18. Rad1 Rd7 19. b4 Na4 20. Nb3 Rxd1 21. Rxd1 Nxb2 22. Rb1 Na4 23. b5 axb5 24. cxb5 Nc3 25. Ra1 Kb8 26. bxc6 bxc6 27. Ra6 Rc8 28. Na5 c5 29. Rb6+ Ka8 30. Rb7 Nfd5 31. Rxf7 Rc7 32. Rf8+ Ka7 33. Re8 Nb6 34. Nc4 Ncd5 35. Rxe6 Nxc4 36. Bxc4 Nb6 37. Bd3 c4 38. Bc2 Nd5 39. Kf1 Nb4 40. Re2 c3 41. Ke1 Nxc2+ 42. Rxc2 Kb6 43. Kd1 Kb5 44. Re2 Ra7 45. Re4 Ra2 46. h4 Rxf2 47. Rf4 Kc5 48. h5 Kd5 49. g4 Ke5 50. Rf7 Kd4 51. Rxg7 Kd3 52. Rd7+ Ke3 53. Re7+ Kd3 54. Rd7+ Ke3 1/2-1/2

[Event "NRW Class2 1718"]
[Site "Germany"]
[Date "2018.01.28"]
[Round "5.4"]
[White "Kilian, Ralf"]
[Black "Koehler, Christian Friedrich"]
[Result "0-1"]
[ECO "C78"]
[WhiteElo "2126"]
[BlackElo "2182"]
[PlyCount "68"]
[EventDate "2017.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Kamen"]
[BlackTeam "Godesberg"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 b5 6. Bb3 Bc5 7. 0-0 d6 8. c3 h6 9. a4 Rb8 10. d4 Bb6 11. dxe5 Nxe5 12. Nxe5 dxe5 13. Qxd8+ Kxd8 14. Nd2 Ke7 15. h3 Rd8 16. Re1 Nd7 17. Bc2 Nc5 18. Nf3 f6 19. a5 Ba7 20. b4 Nd3 21. Re2 Nxc1 22. Rxc1 c5 23. Rd2 Be6 24. Rcd1 Rxd2 25. Rxd2 cxb4 26. cxb4 Rc8 27. Nh4 Bd4 28. Nf5+ Bxf5 29. exf5 Rc4 30. Bb3 Rxb4 31. Be6 Ra4 32. Ra2 Rxa2 33. Bxa2 Kd6 34. Be6 Kc7 0-1

[Event "NRW Class2 1718"]
[Site "Germany"]
[Date "2017.12.17"]
[Round "4.4"]
[White "Koehler, Christian Friedrich"]
[Black "Rempe, Moritz"]
[Result "1-0"]
[ECO "A23"]
[WhiteElo "2182"]
[BlackElo "1998"]
[PlyCount "115"]
[EventDate "2017.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Godesberg"]
[BlackTeam "Bochum SG II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. c4 e5 2. g3 Nf6 3. Bg2 Be7 4. Nc3 c6 5. e4 c5 6. d3 Nc6 7. f4 d6 8. Nf3 Bg4 9. h3 Bxf3 10. Qxf3 Nd4 11. Qd1 h5 12. Ne2 Qc7 13. Nxd4 cxd4 14. 0-0 a5 15. Bd2 b6 16. b3 Qd7 17. a3 b5 18. b4 a4 19. Rc1 bxc4 20. Rxc4 Qb5 21. Qf3 Nd7 22. h4 Bf6 23. Rfc1 Nb6 24. Rc6 Ke7 25. Rc7+ Nd7 26. Bh3 Rhd8 27. fxe5 dxe5 28. R1c5 Qb6 29. Bxd7 Rxd7 30. Rxd7+ Kxd7 31. Qxh5 g6 32. Qg4+ Ke7 33. Bg5 Qd6 34. Bxf6+ Qxf6 35. Kg2 Kd6 36. Rd5+ Ke7 37. Qd7+ Kf8 38. Rd6 Qe7 39. Qxe7+ Kxe7 40. Rc6 Kd7 41. Rc5 Kd6 42. Kf3 f6 43. Kg4 Rf8 44. Kf3 f5 45. exf5 gxf5 46. h5 Re8 47. h6 e4+ 48. Ke2 e3 49. Rxf5 Rc8 50. Rc5 Rf8 51. Rh5 Rf2+ 52. Ke1 Ra2 53. h7 Ra1+ 54. Ke2 Ra2+ 55. Kf3 Rf2+ 56. Kg4 e2 57. h8Q e1Q 58. Qd8+ 1-0

[Event "NRW Class2 1718"]
[Site "Germany"]
[Date "2017.11.19"]
[Round "3.3"]
[White "Hecht, Carsten"]
[Black "Koehler, Christian Friedrich"]
[Result "1/2-1/2"]
[ECO "B01"]
[WhiteElo "2228"]
[BlackElo "2182"]
[PlyCount "178"]
[EventDate "2017.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Lippstadt Turm"]
[BlackTeam "Godesberg"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. d4 Nf6 5. Nf3 a6 6. g3 b5 7. Bg2 Bb7 8. 0-0 e6 9. Qe2 Nbd7 10. a4 b4 11. Bf4 Qb6 12. a5 Qa7 13. Na4 Nd5 14. Bd2 c5 15. c4 bxc3 16. bxc3 N5f6 17. Rab1 Rc8 18. Rfe1 Bd6 19. Ng5 Bxg2 20. Nxe6 fxe6 21. Qxe6+ Kd8 22. Kxg2 Qa8+ 23. Kg1 Qd5 24. Qe2 cxd4 25. Qxa6 Ra8 26. Qd3 Qxa5 27. Nb2 Re8 28. Nc4 Qd5 29. cxd4 Rxe1+ 30. Bxe1 Ke8 31. Bc3 Rc8 32. Nxd6+ Qxd6 33. Bb4 Qd5 34. Ba3 Kf7 35. Re1 Re8 36. Rxe8 Kxe8 37. Qe2+ Kf7 38. Bb2 Qe6 39. Qd2 Qd5 40. Qe2 Qe6 41. Qd1 Nb6 42. Bc1 Nbd5 43. Bd2 Qe4 44. Be1 h6 45. f3 Qe6 46. Bf2 Qc6 47. Qb3 Kg8 48. Qb8+ Qe8 49. Qb2 Kh7 50. Qd2 Qg6 51. Kf1 Qf5 52. Kg2 Kh8 53. Qe2 Qb1 54. Qc4 Qf5 55. Qe2 Kh7 56. Qd2 Ne7 57. Qe2 Ng6 58. Qd1 Nd5 59. Qd2 Qb1 60. Be1 Qa1 61. Bf2 Qc3 62. Qd1 Qc6 63. Qb1 Nf6 64. Qd3 Qd5 65. Kg1 Nd7 66. Qe2 Nb8 67. Qe4 Qxe4 68. fxe4 Nf8 69. Kf1 Kg6 70. Ke2 Nbd7 71. Be3 Kf6 72. Kf3 Ke6 73. g4 Ng6 74. Bf2 Nh8 75. h4 Nf7 76. Be3 g6 77. Bf4 h5 78. gxh5 gxh5 79. Bc1 Nf8 80. Bf4 Ng6 81. Bg3 Nh6 82. Ke2 Ng4 83. Kf3 Kf6 84. Ke2 Nf8 85. Kd3 Ne6 86. Bd6 Nd8 87. Bg3 Ne6 88. Bd6 Nf2+ 89. Ke3 Ng4+ 1/2-1/2

[Event "NRW Class2 1718"]
[Site "Germany"]
[Date "2017.10.15"]
[Round "2.3"]
[White "Koehler, Christian Friedrich"]
[Black "Voelker, Christian"]
[Result "1-0"]
[ECO "A40"]
[WhiteElo "2182"]
[BlackElo "2026"]
[PlyCount "72"]
[EventDate "2017.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Godesberg"]
[BlackTeam "Suedlohn"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. c4 b6 2. d4 Bb7 3. Nf3 e6 4. e3 f5 5. Bd3 Nf6 6. Qc2 c5 7. Nbd2 cxd4 8. exd4 Be7 9. 0-0 0-0 10. a3 Na6 11. b4 Nc7 12. Bb2 Rc8 13. Qb3 Qe8 14. Rfe1 Qh5 15. d5 Kh8 16. Nd4 Bd6 17. h3 Rce8 18. dxe6 dxe6 19. Be2 Qg6 20. Bf3 Bc8 21. Nc6 Nh5 22. Be5 Bxe5 23. Nxe5 Qg5 24. Rad1 Nf4 25. Bc6 Rd8 26. Nf1 Ne8 27. Rxd8 Qxd8 28. Qe3 Ng6 29. Nxg6+ hxg6 30. Nh2 Nd6 31. c5 Nf7 32. cxb6 axb6 33. Nf3 Qc7 34. Rc1 Rd8 35. Be8 Qe7 36. Bxf7 Qxf7 1-0

[Event "NRW Class2 1718"]
[Site "Germany"]
[Date "2017.09.17"]
[Round "1.4"]
[White "Koehler, Christian Friedrich"]
[Black "Varitski, Igor"]
[Result "1/2-1/2"]
[ECO "B10"]
[WhiteElo "2182"]
[BlackElo "2220"]
[PlyCount "177"]
[EventDate "2017.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Godesberg"]
[BlackTeam "Siegburg"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c6 2. c4 d5 3. exd5 cxd5 4. cxd5 Nf6 5. Nc3 Nxd5 6. Nf3 Nc6 7. Bb5 Nxc3 8. bxc3 Qa5 9. Qa4 Qxa4 10. Bxa4 Bd7 11. d4 e6 12. 0-0 Ne5 13. Bxd7+ Nxd7 14. Rb1 b6 15. Re1 Bd6 16. d5 e5 17. Nxe5 Nxe5 18. f4 0-0-0 19. fxe5 Bc5+ 20. Be3 Rxd5 21. Bxc5 Rxc5 22. Re3 Re8 23. Rf1 Re7 24. Rf4 Kd7 25. Rxf7 Rxf7 26. e6+ Ke7 27. exf7+ Kxf7 28. Kf2 Ra5 29. Re2 Ra3 30. Rc2 Ke6 31. Ke3 Kd5 32. Kd3 b5 33. Rb2 Kc5 34. Kc2 a5 35. Kb1 Rxc3 36. Rf2 Re3 37. Rf5+ Kb4 38. Rg5 g6 39. h4 Re1+ 40. Kc2 Re2+ 41. Kb1 Re1+ 42. Kb2 Re2+ 43. Kb1 Kc4 44. h5 Re6 45. hxg6 hxg6 46. Kc2 Rb6 47. Rg4+ Kd5 48. Kd3 Ke5 49. Ke3 Kf5 50. Rf4+ Kg5 51. Re4 Rf6 52. Re5+ Rf5 53. Re6 b4 54. Rb6 Kh6 55. a3 bxa3 56. Rb3 a4 57. Rxa3 Ra5 58. Kd2 Kg5 59. Kc2 Kg4 60. Kd2 Ra6 61. Kc2 Kf4 62. Rf3+ Ke4 63. Ra3 Kd4 64. Rd3+ Kc4 65. Rc3+ Kb4 66. Rc8 Rf6 67. Rb8+ Ka3 68. Kc3 Rc6+ 69. Kd3 Ka2 70. g4 a3 71. Rb5 Rc1 72. Rb6 g5 73. Rb5 Rc8 74. Rxg5 Kb3 75. Rb5+ Ka4 76. Rb7 a2 77. Ra7+ Kb3 78. Rb7+ Ka3 79. Ra7+ Kb2 80. Rb7+ Kc1 81. Ra7 Rc2 82. Ke3 Kb2 83. Kf4 a1Q 84. Rxa1 Kxa1 85. g5 Kb2 86. g6 Kc3 87. Ke5 Rg2 88. Kf6 Kd4 89. g7 1/2-1/2

[Event "Oberliga NRW 1617"]
[Site "Germany"]
[Date "2017.03.26"]
[Round "8.3"]
[White "Koehler, Christian Friedrich"]
[Black "Eckardt, Joshua"]
[Result "1/2-1/2"]
[ECO "A08"]
[WhiteElo "2137"]
[BlackElo "2162"]
[PlyCount "81"]
[EventDate "2016.09.25"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Godesberg"]
[BlackTeam "Iserlohn Koenigsspringer"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e6 2. d3 d5 3. Nd2 c5 4. Ngf3 Nc6 5. g3 g6 6. Bg2 Bg7 7. 0-0 Nge7 8. Re1 b6 9. exd5 exd5 10. d4 Bf5 11. c3 cxd4 12. Nxd4 Nxd4 13. cxd4 0-0 14. Nf3 Be4 15. Bf4 Nc6 16. Ne5 Nxe5 17. Bxe5 Bxg2 18. Kxg2 Qd7 19. Qf3 Rfe8 20. Bxg7 Kxg7 21. Qf4 Rxe1 22. Rxe1 Re8 23. Rxe8 Qxe8 24. Qe5+ Qxe5 25. dxe5 f6 26. exf6+ Kxf6 27. f4 Ke6 28. Kf3 Kd6 29. Ke3 Kc5 30. Kd3 d4 31. Ke4 Kc4 32. g4 d3 33. Ke3 d2 34. Kxd2 Kd4 35. f5 gxf5 36. gxf5 Ke5 37. Ke3 Kxf5 38. Kf3 h6 39. a4 a6 40. b4 h5 41. h4 1/2-1/2

[Event "Oberliga NRW 1617"]
[Site "Germany"]
[Date "2017.03.05"]
[Round "7.2"]
[White "Koehler, Christian Friedrich"]
[Black "Savchenko, Aleksij"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "2137"]
[BlackElo "2270"]
[PlyCount "97"]
[EventDate "2016.09.25"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Godesberg"]
[BlackTeam "Wuppertal Bahn"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Nc6 7. 0-0 Be7 8. c4 0-0 9. Nc3 Nf6 10. h3 Nb4 11. Be2 dxc4 12. Bxc4 c6 13. a3 Nbd5 14. Re1 Be6 15. Ne5 Nxc3 16. bxc3 Bxc4 17. Nxc4 Nd5 18. Qd3 Qc7 19. Ne5 Bd6 20. c4 Ne7 21. Nf3 Rad8 22. Ra2 Ng6 23. Rae2 Qd7 24. Qe4 Bc7 25. Bd2 Bd6 26. Bb4 Qc7 27. g3 a5 28. Bxd6 Rxd6 29. h4 Rfd8 30. Rb2 Re6 31. Qb1 Rxe1+ 32. Qxe1 Nf8 33. c5 Ne6 34. Rb6 Qe7 35. Qxa5 Nxd4 36. Nxd4 Rxd4 37. Rb1 g6 38. Re1 Qd7 39. Qa8+ Kg7 40. Qa5 Rc4 41. Qb6 Qd2 42. Rf1 Qd4 43. Qxb7 Rxc5 44. Qb6 h5 45. Re1 Qc3 46. Qb4 Qxb4 47. axb4 Rb5 48. Re4 c5 49. bxc5 1/2-1/2

[Event "Oberliga NRW 1617"]
[Site "Germany"]
[Date "2017.02.12"]
[Round "6.3"]
[White "Koehler, Christian Friedrich"]
[Black "Litwak, Aleksej"]
[Result "0-1"]
[ECO "B67"]
[WhiteElo "2137"]
[BlackElo "2301"]
[PlyCount "56"]
[EventDate "2016.09.25"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Godesberg"]
[BlackTeam "Oberhausen"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8. 0-0-0 Bd7 9. f4 h6 10. Bh4 Nxe4 11. Qe1 Nf6 12. Nf5 Qa5 13. Nxd6+ Bxd6 14. Rxd6 Qc7 15. Qd2 0-0-0 16. Bxf6 gxf6 17. Ne4 Ne7 18. Nxf6 Bc6 19. Rxd8+ Rxd8 20. Bd3 Rxd3 21. Qxd3 Qxf4+ 22. Kb1 Qxf6 23. Rd1 Nd5 24. g3 e5 25. c4 e4 26. Qd4 Qxd4 27. Rxd4 Ne3 28. Rd6 Nxc4 0-1

[Event "Oberliga NRW 1617"]
[Site "Germany"]
[Date "2017.01.22"]
[Round "5.2"]
[White "Godart, Francois"]
[Black "Koehler, Christian Friedrich"]
[Result "0-1"]
[ECO "D11"]
[WhiteElo "2376"]
[BlackElo "2137"]
[PlyCount "84"]
[EventDate "2016.09.25"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Aachen Aufwaerts II"]
[BlackTeam "Godesberg"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 d5 2. Nf3 Nf6 3. e3 Bg4 4. h3 Bxf3 5. Qxf3 e6 6. c4 c6 7. Nc3 Bd6 8. Bd3 0-0 9. 0-0 Nbd7 10. Bd2 Re8 11. Qd1 c5 12. cxd5 exd5 13. Qf3 cxd4 14. exd4 Bb4 15. Bg5 Qa5 16. Bf5 Bxc3 17. bxc3 g6 18. Bxf6 Nxf6 19. Bxg6 hxg6 20. Qxf6 Re6 21. Qg5 Rc8 22. Rfb1 b6 23. a4 Rc4 24. Rb3 Rxa4 25. Rxa4 Qxa4 26. Qxd5 Qa2 27. Kh2 Qxf2 28. Rb1 Qc2 29. Rf1 Qe2 30. Rf4 Kg7 31. Qa8 Re7 32. Rh4 Re8 33. Qxa7 Qf2 34. Rg4 Re1 35. Qxb6 Qg1+ 36. Kg3 Qe3+ 37. Kh2 Qg1+ 38. Kg3 Re3+ 39. Kh4 Qf2+ 40. g3 Re8 41. Rf4 Rh8+ 42. Kg4 f5+ 0-1

[Event "Oberliga NRW 1617"]
[Site "Germany"]
[Date "2016.12.11"]
[Round "4.3"]
[White "Wacker, Peter"]
[Black "Koehler, Christian Friedrich"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "2306"]
[BlackElo "2137"]
[PlyCount "67"]
[EventDate "2016.09.25"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Koeln SF"]
[BlackTeam "Godesberg"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. c3 d6 6. Nbd2 0-0 7. Bb3 Na5 8. Bc2 c5 9. Nf1 Nc6 10. Ng3 h6 11. 0-0 Re8 12. h3 a6 13. a3 b5 14. Re1 Bf8 15. d4 cxd4 16. cxd4 exd4 17. Nxd4 Nxd4 18. Qxd4 Be6 19. Bf4 Rc8 20. Rac1 g5 21. Bd2 Bg7 22. Qd3 Nd7 23. e5 Rxc2 24. Qxc2 dxe5 25. Nf5 Bf8 26. Bb4 Bxb4 27. axb4 Bxf5 28. Qxf5 Nf8 29. Rxe5 Rxe5 30. Qxe5 Ne6 31. Rc6 Qd1+ 32. Kh2 Qd2 33. Rc8+ Kh7 34. Rh8+ 1-0

[Event "Oberliga NRW 1617"]
[Site "Germany"]
[Date "2016.11.13"]
[Round "3.2"]
[White "Rotstein, Arkadij"]
[Black "Koehler, Christian Friedrich"]
[Result "1-0"]
[ECO "A26"]
[WhiteElo "2508"]
[BlackElo "2137"]
[PlyCount "113"]
[EventDate "2016.09.25"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Koeln Porz II"]
[BlackTeam "Godesberg"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. e4 Nd4 7. Nge2 Nxe2 8. Qxe2 Ne7 9. h4 h5 10. Bg5 f6 11. Be3 Bg4 12. f3 Be6 13. d4 exd4 14. Bxd4 Nc6 15. Be3 Ne5 16. b3 c6 17. 0-0 0-0 18. Rad1 Qc7 19. Qd2 Rad8 20. Ne2 Bc8 21. Nd4 Kh7 22. Kh2 a6 23. Bh3 Bxh3 24. Kxh3 b5 25. cxb5 axb5 26. f4 Qd7+ 27. Kg2 c5 28. fxe5 cxd4 29. Qxd4 fxe5 30. Qd3 Rxf1 31. Rxf1 d5 32. exd5 Qxd5+ 33. Qxd5 Rxd5 34. Kf3 Rd3 35. Ke4 Rc3 36. Rf7 Rc2 37. Rb7 Rxa2 38. Rxb5 Rg2 39. Kf3 Rc2 40. Rb7 Kg8 41. b4 Rc4 42. b5 e4+ 43. Ke2 Be5 44. Bf2 Rb4 45. b6 e3 46. Bxe3 Bxg3 47. Rd7 Bxh4 48. Bd4 Bg3 49. Kd3 h4 50. Rg7+ Kf8 51. Rxg6 Kf7 52. Rh6 Ke8 53. Rh7 Kd8 54. Bc5 Rb2 55. Kc4 Bf2 56. Bxf2 Rxf2 57. Rh8+ 1-0

[Event "Oberliga NRW 1617"]
[Site "Germany"]
[Date "2016.10.23"]
[Round "2.3"]
[White "Trella, Thomas"]
[Black "Koehler, Christian Friedrich"]
[Result "1-0"]
[ECO "A11"]
[WhiteElo "2389"]
[BlackElo "2137"]
[PlyCount "76"]
[EventDate "2016.09.25"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Dinslaken"]
[BlackTeam "Godesberg"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. c4 c6 2. Nf3 d5 3. g3 Nf6 4. Bg2 Bf5 5. 0-0 e6 6. d3 Be7 7. Be3 0-0 8. Qb3 b6 9. h3 h6 10. Nc3 Bh7 11. Qa4 Qd7 12. Bxb6 Qb7 13. Bd4 Nbd7 14. cxd5 exd5 15. Ne5 Nxe5 16. Bxe5 Nd7 17. Bd4 Nc5 18. Bxc5 Bxc5 19. Qc2 Rac8 20. Rac1 Bf5 21. Qd2 Bd6 22. e4 Be6 23. exd5 Bxd5 24. Bxd5 cxd5 25. Ne2 Bb4 26. Qf4 Be7 27. Rxc8 Rxc8 28. Rc1 Rxc1+ 29. Qxc1 Qa6 30. Qb1 Qe6 31. Nf4 Qf5 32. Kg2 g5 33. Nh5 Bc5 34. Qc2 Bd4 35. b3 Qe6 36. g4 f5 37. gxf5 Qxf5 38. Ng3 Be5 1-0

[Event "Oberliga NRW 1617"]
[Site "Germany"]
[Date "2016.09.25"]
[Round "1.3"]
[White "Koehler, Christian Friedrich"]
[Black "Arndt, Stefan"]
[Result "1/2-1/2"]
[ECO "C74"]
[WhiteElo "2137"]
[BlackElo "2215"]
[PlyCount "107"]
[EventDate "2016.09.25"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Godesberg"]
[BlackTeam "Ennepe Ruhr Sued"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 f5 6. exf5 Bxf5 7. 0-0 Bd3 8. Re1 Be7 9. Bc2 Bxc2 10. Qxc2 Nf6 11. d4 e4 12. Ng5 d5 13. f3 h6 14. Nh3 0-0 15. Nd2 exf3 16. Nxf3 Rf7 17. Nf2 Qf8 18. Qg6 Bd6 19. Ng4 Nxg4 20. Qxg4 Qc8 21. Qxc8+ Rxc8 22. Bd2 Re7 23. Rxe7 Nxe7 24. Re1 Kf7 25. Ne5+ Bxe5 26. Rxe5 c6 27. Kf2 Ng6 28. Re1 Re8 29. Rxe8 Kxe8 30. Kf3 Kf7 31. Bf4 Ke6 32. g4 Ne7 33. h4 Ng8 34. h5 g5 35. hxg6 Kf6 36. g7 Kxg7 37. g5 h5 38. Bd6 Kg6 39. Kf4 h4 40. Kg4 h3 41. Bf4 Ne7 42. Kxh3 Kh5 43. Bc1 Nf5 44. Bf4 Ng7 45. Kg3 Nf5+ 46. Kf3 Nh4+ 47. Ke2 Kg4 48. Bc1 Ng6 49. Kd3 Nf8 50. c4 Ne6 51. cxd5 cxd5 52. Kc3 Nxg5 53. Kb4 b6 54. Bxg5 1/2-1/2

[Event "Mittelrhein Regionalliga 15/16"]
[Site "Nordrheinwestfalen"]
[Date "2016.01.31"]
[Round "6.2"]
[White "Whitmire, James David"]
[Black "Koehler, Christian Friedrich"]
[Result "1-0"]
[ECO "D11"]
[WhiteElo "1837"]
[BlackElo "2152"]
[PlyCount "57"]
[EventDate "2015.09.27"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Aachen PTSV"]
[BlackTeam "Godesberg II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 d5 2. Nf3 Nf6 3. e3 Bg4 4. h3 Bxf3 5. Qxf3 c6 6. c4 e6 7. Bd3 Nbd7 8. 0-0 Bd6 9. Nc3 0-0 10. e4 dxc4 11. Bxc4 e5 12. Be3 exd4 13. Bxd4 Be5 14. Be3 Bxc3 15. bxc3 Ne5 16. Qe2 Nxe4 17. Bb3 Nd7 18. Bd4 Nef6 19. Rfd1 Qc7 20. Qf3 c5 21. Be3 Rac8 22. Bd5 Nxd5 23. Rxd5 b6 24. Rad1 Nb8 25. Bf4 Qc6 26. Qg4 Qe6 27. Qg3 Kh8 28. Bxb8 Rxb8 29. Qxb8 1-0

[Event "Mittelrhein Regionalliga 15/16"]
[Site "Nordrheinwestfalen"]
[Date "2016.01.10"]
[Round "5.2"]
[White "Koehler, Christian Friedrich"]
[Black "Keller, Thomas L"]
[Result "1/2-1/2"]
[ECO "B43"]
[WhiteElo "2152"]
[BlackElo "2268"]
[PlyCount "121"]
[EventDate "2015.09.27"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Godesberg II"]
[BlackTeam "Bruehl"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. Bd3 Bb7 7. 0-0 Nc6 8. Nxc6 Bxc6 9. Qe2 Nf6 10. e5 Nd5 11. Nxd5 Bxd5 12. c4 bxc4 13. Bxc4 Bxc4 14. Qxc4 Qa5 15. Qe4 Rb8 16. Rd1 Bc5 17. g3 Qb4 18. Qd3 Qb5 19. b3 Qxd3 20. Rxd3 d5 21. exd6 Kd7 22. Bf4 Rhc8 23. Kf1 f6 24. Rc1 e5 25. Be3 Bxe3 26. Rc7+ Rxc7 27. dxc7+ Kxc7 28. fxe3 a5 29. a3 Kc6 30. Ke2 f5 31. Kd2 e4 32. Rc3+ Kd6 33. Kc2 h5 34. Rc4 g5 35. Rd4+ Ke5 36. Ra4 Rc8+ 37. Kd2 Rd8+ 38. Ke2 Rd5 39. b4 axb4 40. axb4 f4 41. exf4+ gxf4 42. Ra5 f3+ 43. Ke3 Ke6 44. Rxd5 Kxd5 45. h3 Kc4 46. g4 hxg4 47. hxg4 Kc3 48. b5 f2 49. Kxf2 Kd2 50. b6 e3+ 51. Kg2 e2 52. b7 e1Q 53. b8Q Qe4+ 54. Kh3 Ke3 55. Qg3+ Kd4 56. Qd6+ Ke3 57. g5 Qh1+ 58. Kg4 Qf3+ 59. Kh4 Qh1+ 60. Kg3 Qf3+ 61. Kh4 1/2-1/2

[Event "Mittelrhein Regionalliga 15/16"]
[Site "Nordrheinwestfalen"]
[Date "2015.12.13"]
[Round "4.3"]
[White "Koehler, Christian Friedrich"]
[Black "Kremser, Michael"]
[Result "1/2-1/2"]
[ECO "A13"]
[WhiteElo "2152"]
[BlackElo "2068"]
[PlyCount "182"]
[EventDate "2015.09.27"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Godesberg II"]
[BlackTeam "Porz SG III"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. c4 e6 2. g3 d5 3. Nf3 Nf6 4. Bg2 c6 5. 0-0 Bd6 6. b3 0-0 7. Bb2 Nbd7 8. Qc2 Re8 9. d4 Qe7 10. Nc3 Ba3 11. Bxa3 Qxa3 12. e4 dxe4 13. Nxe4 Nxe4 14. Qxe4 Nf6 15. Qe3 a5 16. Ne5 Rd8 17. Rfd1 Qe7 18. Qc3 Qc7 19. Rd3 Bd7 20. Rad1 Be8 21. Qe1 b6 22. Qe3 Rac8 23. f4 c5 24. dxc5 Rxd3 25. Rxd3 Qxc5 26. Qxc5 Rxc5 27. Rd8 Kf8 28. Ra8 Rc7 29. Ra6 Nd7 30. Nxd7+ Rxd7 31. Rxb6 Rd1+ 32. Bf1 Ra1 33. Ra6 Rxa2 34. b4 a4 35. b5 a3 36. Ra7 f6 37. c5 Rb2 38. Rxa3 Bxb5 39. Ra8+ Be8 40. Bc4 e5 41. c6 Rc2 42. c7 Rxc4 43. c8Q Rxc8 44. Rxc8 exf4 45. gxf4 Ke7 46. Kf2 Bd7 47. Rc7 g5 48. Ke3 Kd6 49. Ra7 h5 50. fxg5 fxg5 51. Ra5 h4 52. Rxg5 h3 53. Kf4 Bc6 54. Rg6+ Kd7 55. Ke5 Bg2 56. Rg7+ Kc6 57. Rf7 Bh1 58. Rf6+ Kd7 59. Rf1 Bg2 60. Rd1+ Ke7 61. Rg1 Kd7 62. Rd1+ Ke7 63. Rd3 Bf1 64. Rb3 Kd7 65. Rb7+ Kc6 66. Rh7 Bg2 67. Rf7 Bh1 68. Rf2 Kd7 69. Kf4 Bg2 70. Kg3 Ke6 71. Re2+ Kf5 72. Rb2 Ke5 73. Rd2 Ke4 74. Rd8 Ke5 75. Re8+ Kd6 76. Rh8 Ke5 77. Rh7 Kf5 78. Rh4 Ke5 79. Rh5+ Ke6 80. Rh7 Ke5 81. Rh6 Kf5 82. Rh4 Ke5 83. Rg4 Kf5 84. Kh4 Ke5 85. Kg5 Ke6 86. Rg3 Ke5 87. Kg4 Ke6 88. Ra3 Ke5 89. Ra6 Kd5 90. Rb6 Ke5 91. Rb3 Ke6 1/2-1/2

[Event "Mittelrhein Regionalliga 15/16"]
[Site "Nordrheinwestfalen"]
[Date "2015.11.15"]
[Round "3.3"]
[White "Christensen, Niels"]
[Black "Koehler, Christian Friedrich"]
[Result "0-1"]
[ECO "D17"]
[WhiteElo "2194"]
[BlackElo "2152"]
[PlyCount "80"]
[EventDate "2015.09.27"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Bonn Beuel"]
[BlackTeam "Godesberg II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. Ne5 Nbd7 7. Nxc4 Nb6 8. Ne5 a5 9. f3 Nfd7 10. Nxd7 Nxd7 11. e4 Bg6 12. Be2 e6 13. 0-0 Bb4 14. Be3 0-0 15. Qb3 Qb6 16. Bf2 Rfe8 17. Rfd1 Rad8 18. Rac1 h6 19. Bf1 Kh8 20. Qc4 Bh7 21. Ne2 Qc7 22. Bg3 Bd6 23. e5 Be7 24. Kh1 Nb6 25. Qb3 Nd5 26. Nc3 Bg5 27. Nxd5 Rxd5 28. f4 Be7 29. Bc4 Rd7 30. d5 exd5 31. Bxd5 Bb4 32. f5 Rxe5 33. Bxf7 Rxf7 34. Bxe5 Qe7 35. Rd8+ Bg8 36. Rcd1 Kh7 37. Qg3 Rxf5 38. Qd3 Qxe5 39. h3 Bd5 40. Rf1 Qe4 0-1

[Event "Mittelrhein Regionalliga 15/16"]
[Site "Nordrheinwestfalen"]
[Date "2015.10.18"]
[Round "2.3"]
[White "Koehler, Christian Friedrich"]
[Black "Gourevitch, Mikhail"]
[Result "1-0"]
[ECO "C42"]
[WhiteElo "2152"]
[BlackElo "2048"]
[PlyCount "89"]
[EventDate "2015.09.27"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Godesberg II"]
[BlackTeam "Aachen DJK Aufwärts III"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. 0-0 0-0 8. c4 Bf5 9. Nc3 Nxc3 10. bxc3 Bxd3 11. Qxd3 dxc4 12. Qxc4 Nd7 13. Qb3 Nb6 14. c4 Bf6 15. Be3 Re8 16. a4 a5 17. Ra2 Re4 18. Nd2 Re8 19. d5 Ra6 20. f3 Qe7 21. Ne4 Qb4 22. Qxb4 axb4 23. Nxf6+ gxf6 24. Bxb6 Rxb6 25. a5 Ra6 26. Rb1 b6 27. Rxb4 Re1+ 28. Kf2 Rc1 29. Ke3 Rxa5 30. Rxa5 bxa5 31. Ra4 Kf8 32. Kd4 Ke7 33. Rxa5 Rc2 34. Ra7 Kd7 35. Ra6 Rxg2 36. Rxf6 Rxh2 37. Rxf7+ Kd8 38. Kc5 h5 39. Kc6 Rc2 40. c5 h4 41. Rh7 Rc4 42. Rd7+ Ke8 43. Rxc7 Rf4 44. Rh7 Rf6+ 45. d6 1-0

[Event "Mittelrhein Regionalliga 15/16"]
[Site "Nordrheinwestfalen"]
[Date "2015.09.27"]
[Round "1.3"]
[White "Wecker, Martin"]
[Black "Koehler, Christian Friedrich"]
[Result "0-1"]
[ECO "D94"]
[WhiteElo "2157"]
[BlackElo "2152"]
[PlyCount "114"]
[EventDate "2015.09.27"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Godesberg III"]
[BlackTeam "Godesberg II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 d5 2. c4 c6 3. e3 Nf6 4. Nc3 g6 5. d4 Bg7 6. Be2 0-0 7. 0-0 Nbd7 8. cxd5 Nxd5 9. Nxd5 cxd5 10. Qb3 e6 11. Bd2 f6 12. Rac1 Rf7 13. Rfd1 Nf8 14. Qa3 Bd7 15. Ba5 Qe8 16. Rc7 Bc6 17. Rxf7 Qxf7 18. Bb4 Nd7 19. Bd6 Nb6 20. b3 Qd7 21. Rc1 Nc8 22. Bg3 Bf8 23. Qb2 Nd6 24. b4 a6 25. h3 Bb5 26. Bxd6 Bxd6 27. Bxb5 Qxb5 28. a3 a5 29. Rb1 axb4 30. axb4 Ra4 31. Qc3 Qc4 32. Qe1 Bxb4 33. Qd1 b5 34. Ne1 Bxe1 35. Qxe1 b4 36. Rc1 Qa6 37. Rb1 Qb6 38. Rb3 Kg7 39. Qd2 Qb8 40. g3 Qb5 41. Qb2 Qc4 42. Kg2 Kh6 43. Qb1 Qb5 44. Qb2 Qa5 45. Qd2 Kg7 46. Rb2 Qb5 47. Rb3 Ra1 48. h4 Qf1+ 49. Kf3 Qh1+ 50. Ke2 Qf1+ 51. Kf3 Re1 52. Qc2 Kh6 53. Kg4 e5 54. dxe5 f5+ 55. Kf3 Re2 56. Qxe2 Qh1+ 57. Kf4 Qe4# 0-1

[Event "Mittelrhein Regionalliga 1415"]
[Site "Mittelrhein"]
[Date "2015.03.15"]
[Round "8.2"]
[White "Koehler, Christian Friedrich"]
[Black "Walter, Kurt"]
[Result "0-1"]
[ECO "A03"]
[WhiteElo "2179"]
[BlackElo "2054"]
[PlyCount "106"]
[EventDate "2014.09.28"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Godesberg II"]
[BlackTeam "Klub Koelner SF II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. f4 d5 2. Nf3 Nf6 3. e3 e6 4. b3 Bd6 5. Bb2 c5 6. Bb5+ Bd7 7. Qe2 0-0 8. 0-0 Bxb5 9. Qxb5 Qc7 10. Qe2 Nbd7 11. d3 e5 12. e4 dxe4 13. dxe4 c4 14. Kh1 Rfe8 15. Nc3 a6 16. f5 Rac8 17. Rad1 Bb4 18. Nd5 Nxd5 19. Rxd5 c3 20. Bc1 Nf6 21. Rd3 h6 22. Nh4 Qc6 23. Re1 Rcd8 24. Nf3 Rxd3 25. Qxd3 b5 26. h3 Ba5 27. g4 Bc7 28. g5 hxg5 29. Bxg5 Rd8 30. Qe2 Rd7 31. Bxf6 Qxf6 32. Rd1 Rxd1+ 33. Qxd1 Qh6 34. Kg2 Qe3 35. Qe1 Qc5 36. h4 b4 37. Qe2 Bb6 38. Kh3 a5 39. h5 Kf8 40. f6 gxf6 41. Kh4 Kg7 42. Qe1 Kh7 43. Kg4 Qc8+ 44. Kg3 f5 45. Kh2 f4 46. Qh4 Bd8 47. Qh3 Qxh3+ 48. Kxh3 f5 49. Nxe5 fxe4 50. Kg4 f3 51. Kh3 Bc7 52. Nd7 e3 53. Nf6+ Kh8 0-1

[Event "Mittelrhein Regionalliga 1415"]
[Site "Mittelrhein"]
[Date "2015.02.22"]
[Round "7.2"]
[White "Van Oosterom, Chiel"]
[Black "Koehler, Christian Friedrich"]
[Result "0-1"]
[ECO "A11"]
[WhiteElo "2414"]
[BlackElo "2179"]
[PlyCount "74"]
[EventDate "2014.09.28"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Aachen DJK Aufwaerts III"]
[BlackTeam "Godesberg II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. c4 c6 2. g3 d5 3. Nf3 Nf6 4. Bg2 dxc4 5. 0-0 e6 6. a4 Na6 7. Na3 Bxa3 8. Rxa3 0-0 9. b3 cxb3 10. Rxb3 Qa5 11. Bb2 Qxa4 12. Bxf6 gxf6 13. Qb1 Qg4 14. Rc1 b6 15. d3 Bd7 16. Rc4 Qg7 17. Qa1 Nc7 18. Nd2 f5 19. Qc1 Nb5 20. e3 Rfd8 21. Bxc6 Bxc6 22. Rxc6 Nd6 23. d4 Qf8 24. Qa1 Rdc8 25. Rxc8 Qxc8 26. Qa3 Qc6 27. Qa6 Ne4 28. Nxe4 fxe4 29. Rb4 Qc1+ 30. Kg2 Rc8 31. Qxa7 Qd1 32. Qe7 Qf3+ 33. Kh3 Qf5+ 34. Kh4 Qxf2 35. Rb5 Qxh2+ 36. Kg4 Qe2+ 37. Kh4 Qxb5 0-1

[Event "Mittelrhein Regionalliga 1415"]
[Site "Mittelrhein"]
[Date "2015.02.01"]
[Round "6.2"]
[White "Koehler, Christian Friedrich"]
[Black "Keller, Thomas L"]
[Result "0-1"]
[ECO "A03"]
[WhiteElo "2149"]
[BlackElo "2247"]
[PlyCount "120"]
[EventDate "2014.09.28"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Godesberg II"]
[BlackTeam "Bruehl"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. f4 g6 2. Nf3 d5 3. e3 Bg7 4. Be2 Nf6 5. 0-0 0-0 6. b3 Ne4 7. c3 Nd7 8. Bb2 c6 9. d3 Nd6 10. d4 Nf6 11. Re1 Bf5 12. Nbd2 Rc8 13. c4 c5 14. dxc5 Rxc5 15. Bd4 Rc8 16. c5 Nde4 17. b4 Ng4 18. Qb3 Nxd2 19. Nxd2 e5 20. fxe5 Re8 21. Nf3 Nxe5 22. Nxe5 Bxe5 23. Bf3 Bxd4 24. exd4 Qh4 25. Qc3 Be4 26. Bxe4 Rxe4 27. Rxe4 dxe4 28. g3 Qg5 29. Re1 Qd5 30. Qe3 f5 31. g4 Rd8 32. gxf5 gxf5 33. Qg5+ Kf7 34. Qh5+ Ke6 35. Qh6+ Kd7 36. c6+ bxc6 37. Qxh7+ Kc8 38. Qxa7 Qxd4+ 39. Qxd4 Rxd4 40. Rf1 e3 41. Kg2 f4 42. h4 Rd2+ 43. Kf3 Rxa2 44. h5 Kb7 45. Re1 Rf2+ 46. Ke4 Kb6 47. h6 Kb5 48. Rh1 e2 49. h7 Rf1 50. Rh5+ Kxb4 51. h8Q e1Q+ 52. Kf5 Qb1+ 53. Ke6 Qg6+ 54. Kd7 Rd1+ 55. Kc7 Qd6+ 56. Kb7 Qd7+ 57. Ka6 Qd3+ 58. Kb7 Qd4 59. Qf8+ c5 60. Qb8 Qd6 0-1

[Event "Mittelrhein Regionalliga 1415"]
[Site "Mittelrhein"]
[Date "2015.01.11"]
[Round "5.3"]
[White "Koehler, Christian Friedrich"]
[Black "Kaganowski, Alexander"]
[Result "1-0"]
[ECO "A03"]
[WhiteElo "2166"]
[BlackElo "2110"]
[PlyCount "63"]
[EventDate "2014.09.28"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Godesberg II"]
[BlackTeam "Rheinbacher SF"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. f4 d5 2. Nf3 Nf6 3. e3 g6 4. b3 Bg7 5. Bb2 0-0 6. Be2 c5 7. 0-0 Nc6 8. Ne5 Nd7 9. Nxc6 bxc6 10. Bxg7 Kxg7 11. Nc3 f5 12. Na4 Qa5 13. d4 Rf6 14. Qe1 Qxe1 15. Rfxe1 cxd4 16. exd4 a5 17. c4 e6 18. Rac1 Bb7 19. Bd3 Kf7 20. Kf2 h6 21. h4 h5 22. Rc2 Rb8 23. cxd5 exd5 24. Rce2 Rd6 25. Re7+ Kf8 26. Nc5 Nxc5 27. dxc5 Rf6 28. Rh7 Kg8 29. Ree7 Bc8 30. Reg7+ Kf8 31. Ra7 Kg8 32. Rhc7 1-0

[Event "Mittelrhein Regionalliga 1415"]
[Site "Mittelrhein"]
[Date "2014.12.07"]
[Round "4.3"]
[White "Lorenz, Roger"]
[Black "Koehler, Christian Friedrich"]
[Result "1-0"]
[ECO "D17"]
[WhiteElo "2080"]
[BlackElo "2160"]
[PlyCount "81"]
[EventDate "2014.09.28"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Bonn Beuel"]
[BlackTeam "Godesberg II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 c6 2. c4 d5 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. Ne5 Nbd7 7. Nxc4 Nb6 8. Ne5 a5 9. g3 e6 10. Bg2 Bb4 11. 0-0 0-0 12. e3 h6 13. Qe2 Bh7 14. Rd1 Nfd7 15. Nd3 Qe7 16. e4 e5 17. d5 cxd5 18. Nxb4 axb4 19. Nxd5 Nxd5 20. exd5 Qd6 21. Be3 b3 22. Qb5 Bc2 23. Rd2 Rfc8 24. f4 exf4 25. Bxf4 Qb6+ 26. Qxb6 Nxb6 27. d6 Rd8 28. Rd4 Nd7 29. Bxb7 Ra7 30. Bc6 Nc5 31. Be3 Ne6 32. Rc4 Ra6 33. d7 Nf8 34. Bb5 Raa8 35. Bb6 Rdb8 36. d8Q Rxd8 37. Bxd8 Rxd8 38. a5 Ne6 39. a6 Nd4 40. Rxd4 Rxd4 41. Bc6 1-0

[Event "Mittelrhein Regionalliga 1415"]
[Site "Mittelrhein"]
[Date "2014.11.09"]
[Round "3.2"]
[White "Koehler, Christian Friedrich"]
[Black "Lindam, Ingo"]
[Result "1/2-1/2"]
[ECO "B30"]
[WhiteElo "2160"]
[BlackElo "2067"]
[PlyCount "104"]
[EventDate "2014.09.28"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Godesberg II"]
[BlackTeam "Koeln Lasker"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. b3 Nc6 3. Bb2 Nf6 4. e5 Nd5 5. Nf3 d6 6. Bb5 Bd7 7. exd6 exd6 8. 0-0 Be7 9. d4 Nc7 10. Be2 Bf6 11. Nbd2 d5 12. c3 cxd4 13. Nxd4 Nxd4 14. cxd4 0-0 15. Nf3 Rc8 16. Ne5 Bb5 17. Rc1 Qd6 18. Bxb5 Nxb5 19. Qg4 Rcd8 20. a4 Nc7 21. Rc2 Ne6 22. Nd3 h5 23. Qxh5 Nxd4 24. Bxd4 Bxd4 25. Rd1 Rfe8 26. g3 a5 27. Qf3 Re4 28. Kg2 g5 29. Qf5 Qe7 30. Rc8 Re2 31. Rxd8+ Qxd8 32. Rc1 Kg7 33. h4 Qf6 34. Qxg5+ Qxg5 35. hxg5 Rd2 36. Nf4 Rxf2+ 37. Kh3 Be3 38. Rc7 Bxf4 39. gxf4 Rxf4 40. Rxb7 Kg6 41. Rb5 Kxg5 42. Kg2 Rd4 43. Rxa5 Rd2+ 44. Kf3 Rd3+ 45. Ke2 Rxb3 46. Rxd5+ f5 47. Rd3 Rb2+ 48. Rd2 Rb4 49. Ra2 Rh4 50. Kf3 Rh3+ 51. Kg2 Kg4 52. a5 f4 1/2-1/2

[Event "Mittelrhein Regionalliga 1415"]
[Site "Mittelrhein"]
[Date "2014.10.19"]
[Round "2.3"]
[White "Koehler, Christian Friedrich"]
[Black "Esser, Thomas"]
[Result "1/2-1/2"]
[ECO "A36"]
[WhiteElo "2160"]
[BlackElo "2038"]
[PlyCount "96"]
[EventDate "2014.09.28"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Godesberg II"]
[BlackTeam "Horrem"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. c4 c5 2. g3 g6 3. Bg2 Bg7 4. e3 e6 5. Nc3 Nc6 6. Nge2 Nge7 7. 0-0 0-0 8. Nf4 b6 9. a3 Rb8 10. Rb1 Bb7 11. d3 Ne5 12. Qe2 Bxg2 13. Nxg2 d5 14. cxd5 exd5 15. Rd1 Re8 16. f4 N5c6 17. e4 Nd4 18. Qf1 Qc8 19. Ne3 dxe4 20. dxe4 Qb7 21. Qg2 Rbd8 22. e5 Qxg2+ 23. Kxg2 f6 24. exf6 Bxf6 25. Ng4 Bg7 26. Re1 Nef5 27. Rxe8+ Rxe8 28. Kf1 h5 29. Ne5 Bxe5 30. fxe5 Rxe5 31. Bf4 Re8 32. b4 Ne3+ 33. Kg1 Nf3+ 34. Kh1 g5 35. Bd6 cxb4 36. axb4 Rd8 37. Ne4 Nc4 38. Be7 Ncd2 39. Bxd8 Nxb1 40. Nxg5 Nxg5 41. Bxg5 a5 42. bxa5 bxa5 43. Kg2 Kf7 44. Kh3 a4 45. Bc1 a3 46. Bxa3 Nxa3 47. g4 hxg4+ 48. Kxg4 Kg6 1/2-1/2

[Event "Mittelrhein Regionalliga 1314"]
[Site "Mittelrhein"]
[Date "2014.04.06"]
[Round "9.4"]
[White "Koehler, Christian Friedrich"]
[Black "Noiroux, Kevin"]
[Result "1-0"]
[ECO "A30"]
[WhiteElo "2153"]
[BlackElo "2179"]
[PlyCount "89"]
[EventDate "2013.09.15"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Godesberg II"]
[BlackTeam "Aachen DJK Aufwaerts III"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. c4 Nf6 2. g3 e6 3. Bg2 c5 4. Nf3 Nc6 5. 0-0 Be7 6. d4 cxd4 7. Nxd4 Qb6 8. Nb5 0-0 9. Be3 Bc5 10. Bxc5 Qxc5 11. N1a3 a6 12. Qd6 b6 13. Qxc5 bxc5 14. Nd6 Rb8 15. Bxc6 dxc6 16. b3 e5 17. Nb1 Be6 18. Nc3 Nd7 19. Nde4 Rb4 20. Rfd1 Bf5 21. Rd6 Rc8 22. Rad1 Kf8 23. Rxd7 Bxd7 24. Rxd7 Rbb8 25. Nxc5 a5 26. N3e4 Rd8 27. Nd6 Ra8 28. Rxf7+ Kg8 29. Ncb7 Rdb8 30. a4 Rf8 31. Re7 Rf6 32. Rxe5 h6 33. h4 Kh7 34. f4 Ra6 35. c5 Ra7 36. Kf2 Ra8 37. Kf3 Rg8 38. Re7 Kg6 39. e4 Kh5 40. Re5+ g5 41. hxg5 hxg5 42. Nxa5 Kh6 43. f5 g4+ 44. Kf4 Kh5 45. Re7 1-0

[Event "Mittelrhein Regionalliga 1314"]
[Site "Mittelrhein"]
[Date "2014.03.09"]
[Round "8.4"]
[White "Gerdell, Frank"]
[Black "Koehler, Christian Friedrich"]
[Result "1/2-1/2"]
[ECO "D10"]
[WhiteElo "2032"]
[BlackElo "2153"]
[PlyCount "34"]
[EventDate "2013.09.15"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Gruenfeld"]
[BlackTeam "Godesberg II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. c4 c6 2. d4 d5 3. cxd5 cxd5 4. Nc3 Nf6 5. Bf4 Qb6 6. Qd2 Nc6 7. e3 Bf5 8. Nf3 e6 9. a3 Be7 10. Be2 0-0 11. 0-0 Rfc8 12. b4 Nh5 13. Bg3 Nxg3 14. hxg3 h6 15. Bd3 Bxd3 16. Qxd3 Qd8 17. Rfc1 Qd7 1/2-1/2

[Event "Mittelrhein Regionalliga 1314"]
[Site "Mittelrhein"]
[Date "2014.02.09"]
[Round "7.4"]
[White "Koehler, Christian Friedrich"]
[Black "Goy, Udo"]
[Result "1-0"]
[ECO "D52"]
[WhiteElo "2175"]
[BlackElo "2032"]
[PlyCount "121"]
[EventDate "2013.09.15"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Godesberg II"]
[BlackTeam "Koeln Ford SF"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. c4 c6 2. d4 d5 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Nbd7 6. e3 h6 7. Bh4 Bb4 8. Qc2 Qa5 9. Nd2 0-0 10. Bd3 a6 11. 0-0 dxc4 12. Nxc4 Qh5 13. Bg3 Bxc3 14. bxc3 c5 15. a4 Qd5 16. Rfb1 cxd4 17. cxd4 b5 18. Nd6 bxa4 19. Be2 e5 20. Bf3 Qxd6 21. Bxa8 Nh5 22. Qc6 Qxc6 23. Bxc6 Nxg3 24. hxg3 exd4 25. exd4 Rd8 26. Rxa4 Kf8 27. Bxd7 Bxd7 28. Rxa6 Be6 29. Rd1 Rd5 30. Ra7 g6 31. f3 Kg7 32. Rc7 Kf6 33. Rc5 Rd7 34. Kf2 Ke7 35. g4 Bd5 36. Rh1 Kd6 37. Rxh6 Ra7 38. Rh7 Ra2+ 39. Kg3 Be6 40. Rb5 Rd2 41. d5 Bxd5 42. Rxd5+ Rxd5 43. Rxf7 Ke6 44. Rf8 Ke7 45. Rf4 Ra5 46. Rb4 Kf6 47. Rb6+ Kg7 48. Kh4 Rc5 49. Rb7+ Kg8 50. f4 Ra5 51. Re7 g5+ 52. fxg5 Ra8 53. Kh5 Rb8 54. Kh6 Rd8 55. g6 Rc8 56. Rg7+ Kh8 57. Rf7 Kg8 58. Ra7 Rb8 59. Ra6 Rf8 60. Rb6 Rd8 61. g7 1-0

[Event "Mittelrhein Regionalliga 1314"]
[Site "Mittelrhein"]
[Date "2013.12.15"]
[Round "5.4"]
[White "Gikas, Andreas Basilius"]
[Black "Koehler, Christian Friedrich"]
[Result "0-1"]
[ECO "B11"]
[WhiteElo "2102"]
[BlackElo "2139"]
[PlyCount "84"]
[EventDate "2013.09.15"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Bonn Beuel"]
[BlackTeam "Godesberg II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c6 2. Nc3 d5 3. f4 dxe4 4. Nxe4 Nf6 5. Nf2 Nbd7 6. Nf3 g6 7. g3 Bg7 8. Bg2 0-0 9. 0-0 Qc7 10. Qe2 Re8 11. Ne5 Nd5 12. d4 Nxe5 13. dxe5 Be6 14. c4 Nb6 15. b3 f6 16. Bb2 Rad8 17. Ne4 Bf5 18. Nc5 Nd7 19. Nxd7 Qxd7 20. Rad1 Bg4 21. Bf3 Bxf3 22. Qxf3 Qf5 23. Qe2 h5 24. exf6 exf6 25. Rxd8 Rxd8 26. Rd1 Rxd1+ 27. Qxd1 h4 28. Bc3 Qe4 29. Qd8+ Kh7 30. Bxf6 Qe1+ 31. Kg2 Qe2+ 32. Kh3 Qe6+ 33. g4 Bxf6 34. Qc7+ Qe7 35. Qxe7+ Bxe7 36. g5 Bd6 37. Kg4 h3 38. c5 Bc7 39. b4 Kg7 40. Kf3 Kf7 41. Ke4 Ke6 42. a4 a5 0-1

[Event "Mittelrhein Regionalliga 1314"]
[Site "Mittelrhein"]
[Date "2013.11.24"]
[Round "4.4"]
[White "Koehler, Christian Friedrich"]
[Black "Schalow, Daniel"]
[Result "1-0"]
[ECO "A36"]
[WhiteElo "2139"]
[BlackElo "2063"]
[PlyCount "105"]
[EventDate "2013.09.15"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Godesberg II"]
[BlackTeam "Langenfeld"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. c4 c5 2. g3 Nf6 3. Bg2 Nc6 4. Nc3 e6 5. e4 Be7 6. Nge2 0-0 7. 0-0 e5 8. Bh3 Nd4 9. d3 d6 10. Bxc8 Qxc8 11. f4 Qh3 12. Nxd4 exd4 13. Nd5 Nxd5 14. cxd5 b5 15. a4 a6 16. f5 Bf6 17. Bf4 Be5 18. Bxe5 dxe5 19. Qc1 bxa4 20. Rxa4 Rab8 21. Rxa6 Rb3 22. Qc2 c4 23. dxc4 Re3 24. Ra3 Qh6 25. c5 Rxa3 26. bxa3 Qe3+ 27. Qf2 Qxe4 28. d6 Qd5 29. f6 g5 30. Qf5 h6 31. h4 d3 32. hxg5 Qd4+ 33. Kh2 d2 34. gxh6 Kh8 35. Rd1 Rg8 36. h7 Rg6 37. d7 Rh6+ 38. Kg2 Qd5+ 39. Qf3 Qxd7 40. c6 Qh3+ 41. Kf2 Qe6 42. c7 e4 43. c8Q+ Qxc8 44. Qxe4 Rxf6+ 45. Kg2 Rh6 46. Rxd2 Re6 47. Qf3 Qe8 48. Rf2 f6 49. Qf5 Ra6 50. Rc2 Qa8+ 51. Kh2 Rc6 52. Rxc6 Qxc6 53. Qg6 1-0

[Event "Mittelrhein Regionalliga 1314"]
[Site "Mittelrhein"]
[Date "2013.11.10"]
[Round "3.4"]
[White "Schulte Lentz, Christian"]
[Black "Koehler, Christian Friedrich"]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "2029"]
[BlackElo "2139"]
[PlyCount "82"]
[EventDate "2013.09.15"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Langenfeld II"]
[BlackTeam "Godesberg II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Nf3 Bg4 7. cxd5 Nxd5 8. Qb3 Bxf3 9. gxf3 Nb6 10. Be3 e6 11. 0-0-0 Be7 12. d5 exd5 13. Bxb6 Qxb6 14. Qxb6 axb6 15. Nxd5 0-0 16. Nxe7+ Nxe7 17. a3 Rac8+ 18. Kb1 Rfd8 19. Bb5 Nc6 20. Bxc6 bxc6 21. Kc2 Kf8 22. Rhe1 Rxd1 23. Rxd1 Ke7 24. Rd4 c5 25. Ra4 Rc7 26. Ra6 Rb7 27. a4 Kd6 28. a5 Kc7 29. Kc3 bxa5 30. Rxa5 Kd6 31. Ra8 Rb4 32. Rd8+ Kc7 33. Rd5 Kc6 34. Rg5 g6 35. Rg4 Rb7 36. Re4 Kd5 37. Re8 Rb4 38. Re4 Rb6 39. b3 Rf6 40. Re3 Rf4 41. Re7 Rxf3+ 0-1

[Event "BL2-West 1314"]
[Site "Germany"]
[Date "2013.10.13"]
[Round "1.8"]
[White "Minor, Samuel"]
[Black "Koehler, Christian Friedrich"]
[Result "1-0"]
[ECO "B19"]
[WhiteElo "2220"]
[BlackElo "2082"]
[PlyCount "81"]
[EventDate "2013.10.13"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
[WhiteTeam "Wiesbaden"]
[BlackTeam "Godesberg"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nf3 Nd7 7. h4 h6 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 e6 11. Bd2 Ngf6 12. 0-0-0 Be7 13. Ne4 Nxe4 14. Qxe4 Nf6 15. Qe2 Qd5 16. c4 Qe4 17. Qxe4 Nxe4 18. Be3 0-0 19. Ne5 Rfd8 20. Rd3 Bd6 21. Rb3 Rab8 22. Rh4 Nf6 23. f4 a6 24. g4 Nd7 25. Rh2 Be7 26. Rd2 Nxe5 27. dxe5 b5 28. cxb5 cxb5 29. Rxd8+ Bxd8 30. Kc2 Kf8 31. Rc3 Ke8 32. Rc6 a5 33. Kd3 Kd7 34. Rd6+ Kc7 35. Ra6 a4 36. Ra7+ Rb7 37. Rxb7+ Kxb7 38. Bc5 f5 39. gxf5 Kc6 40. Bf8 exf5 41. Bxg7 1-0

[Event "Mittelrhein Regionalliga 1314"]
[Site "Mittelrhein"]
[Date "2013.09.15"]
[Round "1.4"]
[White "Van der Valk, Niklas"]
[Black "Koehler, Christian Friedrich"]
[Result "1-0"]
[ECO "A56"]
[WhiteElo "2044"]
[BlackElo "2139"]
[PlyCount "95"]
[EventDate "2013.09.15"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Godesberg III"]
[BlackTeam "Godesberg II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. c4 c5 3. d5 Ne4 4. Nd2 Qa5 5. f3 Nf6 6. e4 d6 7. Ne2 g6 8. Nc3 Bg7 9. Be2 0-0 10. 0-0 a6 11. Nb3 Qc7 12. Be3 e6 13. dxe6 Bxe6 14. f4 Re8 15. g4 Nxg4 16. Bxg4 Bxg4 17. Qxg4 Bxc3 18. bxc3 Rxe4 19. Qf3 f5 20. Nd2 Re7 21. Bf2 Nd7 22. Bh4 Re6 23. Qd5 Rae8 24. Rae1 Nf8 25. Rxe6 Rxe6 26. Re1 Qf7 27. Rxe6 Qxe6 28. Be7 b5 29. Bxd6 bxc4 30. Qxc4 Qxc4 31. Nxc4 Ne6 32. Nb6 Kf7 33. Nd7 c4 34. Ne5+ Ke8 35. Nxc4 Kd7 36. Bb8 Kc6 37. Kf2 Kb5 38. Nb2 g5 39. fxg5 Nxg5 40. Ke3 Ne6 41. Kd3 a5 42. c4+ Kc5 43. Kc3 h5 44. Nd3+ Kc6 45. Nf4 Ng5 46. Nxh5 Ne4+ 47. Kd4 Nd2 48. Ng7 1-0

[Event "Regionalliga Mittelrhein 1213"]
[Site "Germany"]
[Date "2013.05.05"]
[Round "10.3"]
[White "Koehler, Christian Friedrich"]
[Black "Schaefer, Juergen"]
[Result "1-0"]
[ECO "A49"]
[WhiteElo "2097"]
[BlackElo "2092"]
[PlyCount "119"]
[EventDate "2012.09.09"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
[WhiteTeam "Godesberg IV"]
[BlackTeam "Bruehl"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 g6 2. g3 Bg7 3. Bg2 e5 4. e4 Nc6 5. 0-0 d6 6. Re1 Nf6 7. c3 0-0 8. d4 Re8 9. d5 Ne7 10. b4 Rf8 11. c4 a5 12. Ba3 Nd7 13. Nbd2 axb4 14. Bxb4 h6 15. Nb3 f5 16. Nfd2 b6 17. f3 h5 18. a4 Bh6 19. a5 bxa5 20. Rxa5 Rb8 21. Bc3 Nf6 22. c5 fxe4 23. fxe4 Ng4 24. Nc4 Nf2 25. Qc2 Bh3 26. Re2 Bxg2 27. Kxg2 Ng4 28. h3 Nf6 29. Ra6 Nc8 30. Nba5 Rb5 31. Na3 Qe8 32. Nxb5 Qxb5 33. Ra8 h4 34. Nc6 Kh7 35. cxd6 cxd6 36. g4 Qb7 37. Ra1 Qd7 38. Rf1 Bf4 39. Nb8 Qb5 40. Nc6 Qc4 41. Rxf4 exf4 42. Bxf6 f3+ 43. Kxf3 Rxf6+ 44. Ke3 Qa6 45. Qa2 Qb6+ 46. Nd4 Rf7 47. Qb2 Qd8 48. Ne6 Qe7 49. Rc2 Qa7+ 50. Qd4 Qb8 51. Ng5+ Kg8 52. Nxf7 Kxf7 53. g5 Ne7 54. Qf6+ Kg8 55. Rb2 Qa7+ 56. Kf4 Qc7 57. Kg4 Kh7 58. Rf2 Nxd5 59. exd5 Qc4+ 60. Qf4 1-0

[Event "Regionalliga Mittelrhein 1213"]
[Site "Germany"]
[Date "2013.04.14"]
[Round "9.3"]
[White "Wolfradt, Dirk"]
[Black "Koehler, Christian Friedrich"]
[Result "1/2-1/2"]
[ECO "D66"]
[WhiteElo "2087"]
[BlackElo "2097"]
[PlyCount "49"]
[EventDate "2012.09.09"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
[WhiteTeam "Langenfeld II"]
[BlackTeam "Godesberg IV"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Bd2 Be7 5. Nc3 d5 6. Bg5 0-0 7. e3 Nbd7 8. Rc1 c6 9. Bd3 h6 10. Bf4 dxc4 11. Bxc4 b5 12. Bd3 Bb7 13. 0-0 a6 14. Qe2 c5 15. Ne5 Qb6 16. Rfd1 Rfd8 17. Bb1 Rac8 18. Nf3 Qa5 19. Nd2 Qb6 20. Nf3 Nh5 21. Be5 Nhf6 22. Bg3 Qa5 23. Nd2 Qb6 24. Nf3 Qa5 25. Nd2 1/2-1/2

[Event "Regionalliga Mittelrhein 1213"]
[Site "Germany"]
[Date "2013.03.03"]
[Round "8.3"]
[White "Koehler, Christian Friedrich"]
[Black "Laschewski, Andreas"]
[Result "1/2-1/2"]
[ECO "A58"]
[WhiteElo "2097"]
[BlackElo "2008"]
[PlyCount "81"]
[EventDate "2012.09.09"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
[WhiteTeam "Godesberg IV"]
[BlackTeam "Pulheim"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. Nf3 c5 3. d5 g6 4. g3 Bg7 5. Bg2 d6 6. c4 b5 7. cxb5 a6 8. bxa6 0-0 9. 0-0 Bxa6 10. Nc3 Nbd7 11. Re1 Qc7 12. e4 Ng4 13. Bf4 Nge5 14. Nxe5 Nxe5 15. Bf1 Bxf1 16. Kxf1 Rfb8 17. Bxe5 Bxe5 18. Qc2 Qb7 19. f4 Bd4 20. Re2 Qb4 21. Nd1 Ra7 22. a3 Qb3 23. Qxb3 Rxb3 24. Rc1 f6 25. Rcc2 Ra4 26. Ke1 Kf7 27. Kd2 e6 28. dxe6+ Kxe6 29. Kc1 h5 30. Nc3 Bxc3 31. Rxc3 Rxc3+ 32. bxc3 Rxa3 33. Kb2 Ra5 34. Kb3 Ra1 35. Kc4 Ra5 36. Rf2 Ra4+ 37. Kd3 f5 38. exf5+ Kxf5 39. h3 Kf6 40. g4 hxg4 41. hxg4 1/2-1/2

[Event "Regionalliga Mittelrhein 1213"]
[Site "Germany"]
[Date "2013.02.03"]
[Round "7.3"]
[White "Haskelman, Evgen"]
[Black "Koehler, Christian Friedrich"]
[Result "1-0"]
[ECO "B14"]
[WhiteElo "2149"]
[BlackElo "2097"]
[PlyCount "129"]
[EventDate "2012.09.09"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
[WhiteTeam "Koeln Ford SF"]
[BlackTeam "Godesberg IV"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c6 2. c4 d5 3. exd5 cxd5 4. d4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. c5 Be7 8. Nf3 0-0 9. Bb5 Ne4 10. Bxe7 Qxe7 11. Qc2 Nxc3 12. Qxc3 e5 13. 0-0 e4 14. Ne1 f5 15. f4 Be6 16. Nc2 Nd8 17. Ne3 Nf7 18. b4 g5 19. Ba4 gxf4 20. Rxf4 Nh8 21. Raf1 Ng6 22. b5 Nxf4 23. Rxf4 a6 24. b6 Rac8 25. Bb3 Qd8 26. Qe1 Kh8 27. Qf2 Qd7 28. Rh4 Rcd8 29. Qf4 Qg7 30. Nc2 Rg8 31. g3 Qg5 32. Qe5+ Rg7 33. Rf4 h5 34. Kf2 Qe7 35. Ne3 Bg8 36. Qxe7 Rxe7 37. Rxf5 Rf7 38. Rxf7 Bxf7 39. Ng2 Kg7 40. Ke3 Kf6 41. Kf4 Be8 42. Ne3 Bc6 43. Bd1 Rh8 44. h4 Kg6 45. Bb3 Rf8+ 46. Ke5 Re8+ 47. Kd6 Kf6 48. Bd1 Re6+ 49. Kc7 Re7+ 50. Kc8 Re8+ 51. Kc7 Re7+ 52. Kc8 Re8+ 53. Kc7 Re7+ 54. Kb8 Re8+ 55. Ka7 Rh8 56. g4 hxg4 57. Nxg4+ Ke6 58. Ne5 Bb5 59. c6 bxc6 60. b7 Rh7 61. Ka8 Rh8+ 62. b8Q Rxb8+ 63. Kxb8 e3 64. Nf3 e2 65. Bc2 1-0

[Event "Regionalliga Mittelrhein 1213"]
[Site "Germany"]
[Date "2013.01.13"]
[Round "6.3"]
[White "Koehler, Christian Friedrich"]
[Black "Johannes, Alex"]
[Result "1/2-1/2"]
[ECO "D52"]
[WhiteElo "2097"]
[BlackElo "2125"]
[PlyCount "45"]
[EventDate "2012.09.09"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
[WhiteTeam "Godesberg IV"]
[BlackTeam "Gruenfeld"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. Nc3 c6 5. Bg5 Nbd7 6. e3 Qa5 7. Bxf6 Nxf6 8. Nd2 Be7 9. Bd3 0-0 10. 0-0 dxc4 11. Nxc4 Qc7 12. Rc1 Rd8 13. Qc2 c5 14. dxc5 Qxc5 15. Ne4 Nxe4 16. Bxe4 g6 17. a3 Rb8 18. b4 Qb5 19. Na5 Bd7 20. Qb2 b6 21. Nc6 Bxc6 22. Bxc6 Qf5 23. Bf3 1/2-1/2

[Event "Regionalliga Mittelrhein 1213"]
[Site "Germany"]
[Date "2012.11.11"]
[Round "4.3"]
[White "Koehler, Christian Friedrich"]
[Black "Huebner, Wolfgang"]
[Result "1-0"]
[ECO "D41"]
[WhiteElo "2097"]
[BlackElo "2087"]
[PlyCount "81"]
[EventDate "2012.09.09"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
[WhiteTeam "Godesberg IV"]
[BlackTeam "Koeln SF II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. c4 e6 2. d4 d5 3. Nc3 Nf6 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 c5 7. Nf3 cxd4 8. cxd4 Bb4+ 9. Bd2 Bxd2+ 10. Qxd2 0-0 11. Bc4 Nc6 12. 0-0 Qd6 13. e5 Qe7 14. Rad1 Rd8 15. Qe3 Bd7 16. Ng5 Rac8 17. Bd3 h6 18. Ne4 Nb4 19. Bb1 Bc6 20. a3 Nd5 21. Qd3 g6 22. f4 Kg7 23. Ba2 a6 24. Rf2 Ba4 25. Re1 Bb5 26. Qg3 Bc4 27. Bb1 b5 28. h4 h5 29. f5 exf5 30. Rxf5 Qa7 31. Nd6 Qxd4+ 32. Kh1 Ne7 33. Rxh5 Rh8 34. Rxh8 Rxh8 35. Be4 Rh5 36. Ne8+ Kf8 37. Nf6 Nf5 38. Bxf5 Rxh4+ 39. Bh3 Be6 40. Qf3 Bxh3 41. gxh3 1-0

[Event "Regionalliga Mittelrhein 1213"]
[Site "Germany"]
[Date "2012.10.21"]
[Round "3.3"]
[White "Andok, Claus Michael"]
[Black "Koehler, Christian Friedrich"]
[Result "1-0"]
[ECO "B10"]
[WhiteElo "2085"]
[BlackElo "2097"]
[PlyCount "119"]
[EventDate "2012.09.09"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
[WhiteTeam "Wuerselen"]
[BlackTeam "Godesberg IV"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c6 2. d3 d5 3. Nd2 e5 4. Ngf3 Bd6 5. g3 Nf6 6. Bg2 0-0 7. 0-0 Qc7 8. h3 Rd8 9. c3 Nbd7 10. Re1 dxe4 11. dxe4 b5 12. Qc2 a5 13. Nf1 Nc5 14. Nh4 g6 15. Bg5 Be7 16. Be3 Be6 17. Nd2 Nfd7 18. Nhf3 f6 19. Bf1 Nb6 20. b4 Nb7 21. a3 Nd6 22. Bxb6 Qxb6 23. c4 Nb7 24. c5 Qc7 25. Kh2 a4 26. Qc3 Bf8 27. Rad1 Bh6 28. Qb2 Rd7 29. Nb1 Rad8 30. Rxd7 Qxd7 31. Qc3 Re8 32. Qb2 Nd8 33. Nc3 Bb3 34. Nb1 Nf7 35. Nc3 Rd8 36. Nb1 Ng5 37. Nxg5 Bxg5 38. Kg1 h5 39. h4 Bh6 40. Qc3 Ba2 41. Qf3 Kf7 42. Be2 Bb3 43. Rf1 Qd4 44. g4 Bc2 45. g5 Bg7 46. Nc3 Bd3 47. gxf6 Bxf6 48. Nd5 Rxd5 49. exd5 e4 50. Qh3 Bxe2 51. Qd7+ Kf8 52. Qd6+ Kf7 53. Re1 Bxh4 54. Qf4+ Qf6 55. Qc7+ Qe7 56. d6 Qxc7 57. dxc7 Bxf2+ 58. Kxf2 Bg4 59. Rxe4 Bh3 60. Rd4 1-0

[Event "Regionalliga Mittelrhein 1213"]
[Site "Germany"]
[Date "2012.09.30"]
[Round "2.3"]
[White "Koehler, Christian Friedrich"]
[Black "Andersen, Hans Christoph"]
[Result "1-0"]
[ECO "C01"]
[WhiteElo "2097"]
[BlackElo "2222"]
[PlyCount "37"]
[EventDate "2012.09.09"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
[WhiteTeam "Godesberg IV"]
[BlackTeam "Godesberg II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. exd5 exd5 5. Bd3 Nc6 6. a3 Bxc3+ 7. bxc3 Be6 8. Qf3 Nge7 9. Ne2 Qd7 10. 0-0 0-0 11. Re1 Rae8 12. Bd2 Na5 13. Nf4 Bg4 14. Qg3 c6 15. h3 Bf5 16. Nh5 Bg6 17. Bh6 Nf5 18. Rxe8 Rxe8 19. Bxf5 1-0

[Event "Regionalliga Mittelrhein 1213"]
[Site "Germany"]
[Date "2012.09.09"]
[Round "1.3"]
[White "Broehl, Stephan"]
[Black "Koehler, Christian Friedrich"]
[Result "1/2-1/2"]
[ECO "B01"]
[WhiteElo "2093"]
[BlackElo "2097"]
[PlyCount "98"]
[EventDate "2012.09.09"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
[WhiteTeam "Godesberg III"]
[BlackTeam "Godesberg IV"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd8 4. d4 Nf6 5. Nf3 Bg4 6. h3 Bh5 7. g4 Bg6 8. Ne5 Nbd7 9. Nxg6 hxg6 10. Bg2 c6 11. Bf4 e6 12. Qf3 Bb4 13. 0-0 Nb6 14. Be5 Nc4 15. Ne4 Nxe4 16. Qxe4 Nd2 17. Qf4 g5 18. Qe3 Nxf1 19. Rxf1 0-0 20. c3 Be7 21. Be4 g6 22. h4 f6 23. Bh2 f5 24. Bc2 Kh7 25. hxg5 Bxg5 26. f4 Bh6 27. g5 Bg7 28. Bb3 Re8 29. Bxe6 Rxe6 30. Qxe6 Qe8 31. Re1 Qxe6 32. Rxe6 Bf8 33. Kf1 Kg7 34. Ke2 Kf7 35. Re3 Bd6 36. Kd3 Rh8 37. Bg3 Rh1 38. Re2 Rh3 39. Re3 Rh1 40. Rf3 Rd1+ 41. Ke3 Ra1 42. a3 b5 43. Rf2 Rh1 44. Rh2 Rxh2 45. Bxh2 Ke6 46. b4 Kd5 47. Kd3 Bc7 48. Bg3 a5 49. Bh2 axb4 1/2-1/2

[Event "Bad Godesberg op 16th"]
[Site "Bad Godesberg"]
[Date "2012.07.15"]
[Round "9"]
[White "Koehler, Christian Friedrich"]
[Black "Barning, Gerhard"]
[Result "1-0"]
[ECO "B12"]
[WhiteElo "2016"]
[PlyCount "82"]
[EventDate "2012.07.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. f3 e6 4. Nc3 Bb4 5. a3 Be7 6. Be3 Nf6 7. Bd3 dxe4 8. fxe4 e5 9. Nf3 exd4 10. Bxd4 0-0 11. 0-0 Bg4 12. Be3 Nbd7 13. h3 Bxf3 14. gxf3 Bc5 15. Bxc5 Nxc5 16. Bc4 Qc7 17. Qd2 Rad8 18. Qf2 Rd4 19. Be2 Rfd8 20. Rad1 Ne6 21. Rfe1 h6 22. Bf1 Qe5 23. Bg2 Nh5 24. Rxd4 Rxd4 25. Rd1 Nhf4 26. h4 Rxd1+ 27. Nxd1 Qd4 28. Qxd4 Nxd4 29. c3 Nde6 30. Kf2 Nc5 31. Bf1 Kf8 32. Ke3 Nce6 33. Kf2 Ke7 34. Ne3 g6 35. b4 f6 36. a4 Nc7 37. Kg3 Nce6 38. Nc4 b5 39. Na5 bxa4 40. Nxc6+ Kd6 41. Nxa7 a3 1-0

[Event "Bad Godesberg op 16th"]
[Site "Bad Godesberg"]
[Date "2012.07.13"]
[Round "7"]
[White "Koehler, Christian Friedrich"]
[Black "Krebs, Dietmar"]
[Result "1/2-1/2"]
[ECO "B50"]
[WhiteElo "2016"]
[BlackElo "2129"]
[PlyCount "103"]
[EventDate "2012.07.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nf6 3. d3 d6 4. Be2 Nc6 5. Nf3 g6 6. 0-0 Bg7 7. Bg5 h6 8. Bd2 0-0 9. Na3 a6 10. Nc2 b5 11. h3 Rb8 12. Ne3 Bd7 13. Nh2 a5 14. f4 b4 15. Nhg4 Nxg4 16. hxg4 bxc3 17. bxc3 e6 18. Qc1 Kh7 19. g3 f5 20. gxf5 exf5 21. exf5 gxf5 22. Bf3 Ne7 23. Qa3 Bc6 24. Bxc6 Nxc6 25. Rab1 Qd7 26. Qa4 d5 27. Rxb8 Rxb8 28. g4 fxg4 29. f5 Qd6 30. Qxg4 Ne5 31. Qg3 Rg8 32. Ng2 Bf8 33. Qh3 d4 34. c4 Ng4 35. Rf4 Ne5 36. Kf1 Qf6 37. Bxa5 Qg5 38. f6 Qg6 39. Qf5 Qxf5 40. Rxf5 Nxd3 41. Bd8 Rg5 42. Rxg5 hxg5 43. a4 Kg6 44. a5 Nb4 45. Ke2 Bd6 46. Kf3 d3 47. Ne3 Bf4 48. Nd1 d2 49. Kg4 Be5 50. f7 Kxf7 51. Kxg5 Ke6 52. Bb6 1/2-1/2

[Event "Bad Godesberg op 16th"]
[Site "Bad Godesberg"]
[Date "2012.07.12"]
[Round "6"]
[White "Koehler, Christian Friedrich"]
[Black "Chittka, Julius"]
[Result "1-0"]
[ECO "B18"]
[WhiteElo "2016"]
[PlyCount "57"]
[EventDate "2012.07.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h5 7. Nf3 Nd7 8. Bd3 Bxd3 9. Qxd3 Ngf6 10. c4 e6 11. Bd2 Bd6 12. 0-0-0 Qc7 13. Ne4 Nxe4 14. Qxe4 Nf6 15. Qe2 0-0-0 16. Bc3 Rhe8 17. Ne5 Bxe5 18. dxe5 Ng4 19. f3 Nh6 20. g4 hxg4 21. fxg4 f5 22. exf6 gxf6 23. Rxd8+ Qxd8 24. Qe3 Nxg4 25. Qxa7 Qc7 26. Rd1 Qf4+ 27. Kb1 Qc7 28. Ba5 b6 29. Qa8+ 1-0

[Event "Bad Godesberg op 16th"]
[Site "Bad Godesberg"]
[Date "2012.07.11"]
[Round "5"]
[White "Broehl, Stephan"]
[Black "Koehler, Christian Friedrich"]
[Result "1-0"]
[ECO "B12"]
[WhiteElo "2131"]
[BlackElo "2016"]
[PlyCount "109"]
[EventDate "2012.07.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 c5 4. dxc5 e6 5. a3 Nd7 6. Nf3 Bxc5 7. b4 Be7 8. Bd3 a5 9. b5 f6 10. Bb2 fxe5 11. Nxe5 Ngf6 12. Nd2 Nxe5 13. Bxe5 0-0 14. 0-0 Bd7 15. c4 Qe8 16. a4 Rc8 17. Rc1 Qh5 18. Qxh5 Nxh5 19. Nb3 b6 20. f4 Nf6 21. Bd4 dxc4 22. Bxc4 Bd8 23. Bxf6 Bxf6 24. Rfd1 Rcd8 25. Rxd7 Rxd7 26. Bxe6+ Rff7 27. Rc8+ Bd8 28. Kf2 Kf8 29. Bxf7 Kxf7 30. Ke3 Bc7 31. g3 Ke6 32. Re8+ Kd5 33. Re4 Bd6 34. Rd4+ Ke6 35. Ke4 g6 36. Rc4 Bc7 37. Nd4+ Kf7 38. Nf3 h5 39. Rc6 h4 40. g4 Kg7 41. Ne5 Bxe5 42. fxe5 Rd2 43. Rxb6 Rxh2 44. Rf6 Ra2 45. Rd6 Rxa4+ 46. Rd4 Ra1 47. Rd7+ Kf8 48. b6 Rb1 49. b7 Ke8 50. Rh7 Kd8 51. e6 a4 52. b8Q+ Rxb8 53. Rh8+ Kc7 54. Rxb8 Kxb8 55. e7 1-0

[Event "Bad Godesberg op 16th"]
[Site "Bad Godesberg"]
[Date "2012.07.10"]
[Round "4"]
[White "Koehler, Christian Friedrich"]
[Black "Zens, Rolf"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2016"]
[BlackElo "1841"]
[PlyCount "49"]
[EventDate "2012.07.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. e4 c5 2. c3 e6 3. d4 cxd4 4. cxd4 Nf6 5. Nc3 d6 6. f4 Be7 7. Nf3 a6 8. Bd3 Nc6 9. Be3 0-0 10. 0-0 b5 11. h3 Bb7 12. Rc1 Rc8 13. g4 Nd7 14. Bb1 b4 15. Ne2 e5 16. b3 exd4 17. Nfxd4 Nxd4 18. Qxd4 a5 19. Qa7 Bc6 20. Nd4 Nc5 21. Nf5 Re8 22. Bxc5 dxc5 23. Rfd1 Qc7 24. Nxe7+ Rxe7 25. Qxc7 1-0

[Event "Bad Godesberg op 16th"]
[Site "Bad Godesberg"]
[Date "2012.07.09"]
[Round "3"]
[White "Mandt, Joachim"]
[Black "Koehler, Christian Friedrich"]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "1779"]
[BlackElo "2016"]
[PlyCount "90"]
[EventDate "2012.07.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Nf3 Bg4 7. Be3 e6 8. a3 Be7 9. cxd5 Nxd5 10. Be2 0-0 11. 0-0 Rc8 12. Ne4 Qb6 13. Rb1 f5 14. Nc3 f4 15. Bd2 Bf5 16. Na4 Qd8 17. Rc1 Bf6 18. Bc3 g5 19. h3 Kh8 20. Re1 Rg8 21. Nc5 b6 22. Nd3 Qf8 23. Nfe5 Nxe5 24. Nxe5 Bxe5 25. dxe5 Nxc3 26. bxc3 Qxa3 27. Qd7 Rge8 28. Qf7 Rf8 29. Qd7 a5 30. c4 Qc5 31. Bg4 Rcd8 32. Qb5 Qxb5 33. cxb5 Bxg4 34. hxg4 Rd5 35. Rc7 Rxb5 36. Rd1 Rd5 37. Rb1 b5 38. Ra7 Rfd8 39. Rb3 a4 40. Rh3 R8d7 41. Ra8+ Kg7 42. Rc3 Rxe5 43. Rcc8 Re1+ 44. Kh2 Rdd1 45. Rg8+ Kh6 0-1

[Event "Bad Godesberg op 16th"]
[Site "Bad Godesberg"]
[Date "2012.07.08"]
[Round "2"]
[White "Koehler, Christian Friedrich"]
[Black "Boidman, Yuri"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "2016"]
[BlackElo "2438"]
[PlyCount "110"]
[EventDate "2012.07.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. d4 Bg4 4. Nf3 Qxd5 5. c4 Bxf3 6. gxf3 Qd7 7. Nc3 e6 8. Be3 Be7 9. Rg1 0-0 10. Bh6 Ne8 11. Qd2 Kh8 12. Be3 Nc6 13. 0-0-0 Rd8 14. Bh3 Bf6 15. d5 Ne5 16. Qe2 Qe7 17. dxe6 Rxd1+ 18. Rxd1 fxe6 19. Ne4 Nxf3 20. Bc5 Nd6 21. Nxd6 b6 22. Nf7+ Qxf7 23. Bxf8 Qxf8 24. Qxe6 h6 25. Rd7 Ng5 26. Qe3 Nxh3 27. Qxh3 Qc5 28. Qe6 Qg5+ 29. Kc2 Qf4 30. Qe8+ Kh7 31. Qe2 Qxh2 32. Qd3+ Kh8 33. Qg3 Qh5 34. Rd5 Qe2+ 35. Rd2 Qxc4+ 36. Kb1 Bg5 37. Rd1 Qe2 38. Qd3 Qxf2 39. Rf1 Qc5 40. a3 Bf6 41. Rf5 Qd4 42. Qe2 c5 43. Rf2 c4 44. Rg2 Qd3+ 45. Qxd3 cxd3 46. Rd2 h5 47. Rxd3 h4 48. Kc2 g5 49. b3 g4 50. Kd1 h3 51. Ke2 h2 52. Rd1 Bd4 53. Rh1 Bg1 54. Kf1 Kg7 55. a4 a5 0-1

[Event "Bad Godesberg op 16th"]
[Site "Bad Godesberg"]
[Date "2012.07.07"]
[Round "1"]
[White "Stetefeldt, Mario"]
[Black "Koehler, Christian Friedrich"]
[Result "0-1"]
[ECO "B18"]
[BlackElo "2016"]
[PlyCount "108"]
[EventDate "2012.07.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nf3 Nd7 7. Bd3 e6 8. 0-0 Ngf6 9. Bf4 Be7 10. Re1 0-0 11. Bxg6 hxg6 12. Ne5 Qb6 13. b3 Bb4 14. Bd2 Nxe5 15. Bxb4 Qxb4 16. dxe5 Rfd8 17. Qf3 Nd5 18. a3 Qc3 19. Qxc3 Nxc3 20. Ne4 Nxe4 21. Rxe4 Rd2 22. Rc1 Rad8 23. Kf1 g5 24. Re2 Rxe2 25. Kxe2 Rd5 26. c4 Rxe5+ 27. Kf1 Kf8 28. Rd1 Ke7 29. Rd3 Re4 30. f3 Rh4 31. h3 c5 32. Ke2 Rh8 33. Rc3 f5 34. Rd3 Rd8 35. Rc3 Rd6 36. Re3 Ra6 37. a4 Rd6 38. Re5 b6 39. Re3 Kf6 40. Rc3 Rd4 41. g3 Ke5 42. Re3+ Kd6 43. Rc3 Ke7 44. Rc1 Rd8 45. Rb1 Rh8 46. Rh1 e5 47. Ke3 Ke6 48. Rh2 f4+ 49. gxf4 gxf4+ 50. Kf2 Kf5 51. Rh1 g5 52. Ke2 e4 53. fxe4+ Kxe4 54. Rh2 g4 0-1

[Event "Mittelrhein Verbandsliga-O 1112"]
[Site "Germany"]
[Date "2012.05.06"]
[Round "10"]
[White "Koehler, Christian Friedrich"]
[Black "Evers, Leo"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "1929"]
[BlackElo "2017"]
[PlyCount "73"]
[EventDate "2011.09.18"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]
[WhiteTeam "Godesberg IV"]
[BlackTeam "Koeln Porz III"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. Nf3 c5 3. g3 cxd4 4. Nxd4 e5 5. Nb3 d5 6. Bg2 h6 7. 0-0 Nc6 8. c4 Be6 9. cxd5 Bxd5 10. Nc3 Bxg2 11. Kxg2 Be7 12. Be3 0-0 13. f3 Qxd1 14. Rfxd1 Rfd8 15. Rd3 Rxd3 16. exd3 Rd8 17. Rd1 Nd5 18. Nxd5 Rxd5 19. Kf2 b6 20. Ke2 f5 21. Rc1 Rd6 22. a3 Bf6 23. Rc2 Kf7 24. Nd2 Ke7 25. Nc4 Re6 26. Kd1 Kd7 27. Re2 h5 28. Bf2 g6 29. Rc2 Bg5 30. b4 b5 31. Nd2 Rd6 32. Ke2 Bxd2 33. Rxd2 Nd4+ 34. Bxd4 exd4 35. Rc2 Rc6 36. Rxc6 Kxc6 37. f4 1/2-1/2

[Event "Mittelrhein Verbandsliga-O 1112"]
[Site "Germany"]
[Date "2012.04.15"]
[Round "9"]
[White "Koehler, Christian Friedrich"]
[Black "Engel, Knut"]
[Result "1-0"]
[ECO "B02"]
[WhiteElo "1929"]
[BlackElo "1915"]
[PlyCount "77"]
[EventDate "2011.09.18"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]
[WhiteTeam "Godesberg IV"]
[BlackTeam "Euskirchen Turm"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 Nf6 2. Nc3 d5 3. exd5 Nxd5 4. Bc4 e6 5. Nf3 Be7 6. 0-0 0-0 7. Qe2 b6 8. Nxd5 exd5 9. Bxd5 Qxd5 10. Qxe7 Bg4 11. c3 Bxf3 12. gxf3 Qxf3 13. Qxc7 Nc6 14. Qg3 Qf5 15. d4 Rae8 16. Bh6 Qf6 17. Bg5 Qf5 18. Rfe1 Kh8 19. Qg2 f6 20. Bh4 Nd8 21. Bg3 Nf7 22. Qc6 Rc8 23. Qe6 Qh5 24. Qe2 Qf5 25. Qe4 Qh5 26. Qe2 Qf5 27. Qe4 Qh5 28. h4 Nh6 29. d5 b5 30. d6 f5 31. Qf4 Rc4 32. Qg5 Qxg5 33. hxg5 Nf7 34. d7 f4 35. Re8 Kg8 36. Rae1 g6 37. Rxf8+ Kxf8 38. Re8+ Kg7 39. Re7 1-0

[Event "Mittelrhein Verbandsliga-O 1112"]
[Site "Germany"]
[Date "2012.03.18"]
[Round "8"]
[White "Koehler, Christian Friedrich"]
[Black "Solzbacher, Thomas"]
[Result "1-0"]
[ECO "C01"]
[WhiteElo "1929"]
[BlackElo "1810"]
[PlyCount "79"]
[EventDate "2011.09.18"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]
[WhiteTeam "Godesberg IV"]
[BlackTeam "Siebengebirge"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. c4 e5 2. Nc3 Nf6 3. e3 Be7 4. d4 exd4 5. exd4 d5 6. Nf3 0-0 7. Be2 Be6 8. Qb3 b6 9. Bg5 Nc6 10. Bxf6 Bxf6 11. cxd5 Na5 12. Qc2 Bxd5 13. Nxd5 Qxd5 14. 0-0 Nc6 15. Rfd1 Rad8 16. Bc4 Qd6 17. d5 Ne5 18. Nxe5 Bxe5 19. g3 Qf6 20. Rd2 c5 21. a4 a5 22. Bb5 Rd6 23. Re1 Rfd8 24. Qe4 Re6 25. dxe6 Rxd2 26. exf7+ Kxf7 27. f4 Bd4+ 28. Kh1 g6 29. g4 Rxh2+ 30. Kxh2 Qh4+ 31. Kg2 Qxg4+ 32. Kf1 Kg7 33. Qb7+ Kh6 34. Qh1+ Kg7 35. Re7+ Kf6 36. Qe4 Qg1+ 37. Ke2 Qf2+ 38. Kd1 Qg1+ 39. Kc2 Qf2+ 40. Be2 1-0

[Event "Mittelrhein Verbandsliga-O 1112"]
[Site "Germany"]
[Date "2012.02.26"]
[Round "7"]
[White "Koehler, Christian Friedrich"]
[Black "Hoeck, Sebastian"]
[Result "1-0"]
[ECO "A22"]
[WhiteElo "1929"]
[BlackElo "1723"]
[PlyCount "63"]
[EventDate "2011.09.18"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]
[WhiteTeam "Godesberg IV"]
[BlackTeam "Bruehl III"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. c4 e5 2. Nc3 Nf6 3. e3 d5 4. cxd5 Nxd5 5. Nf3 Nxc3 6. bxc3 Bd6 7. d4 Bg4 8. dxe5 Bxf3 9. gxf3 Bxe5 10. Qxd8+ Kxd8 11. Bb2 c6 12. f4 Bf6 13. 0-0-0+ Kc7 14. Bc4 Bh4 15. Rd2 f5 16. Be6 Rd8 17. Bxf5 Rxd2 18. Kxd2 g6 19. Be6 Bxf2 20. Ke2 Bh4 21. Rd1 Na6 22. Rd7+ Kb6 23. Rxh7 g5 24. c4 Re8 25. Bf7 Rf8 26. Bf6 Nc5 27. Bxg5 Bxg5 28. fxg5 Ne4 29. g6 Ng5 30. h4 Nxh7 31. gxh7 Kc5 32. Bg8 1-0

[Event "Mittelrhein Verbandsliga-O 1112"]
[Site "Germany"]
[Date "2012.02.05"]
[Round "6"]
[White "Meissner, Wolf Dieter"]
[Black "Koehler, Christian Friedrich"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "1991"]
[BlackElo "1929"]
[PlyCount "80"]
[EventDate "2011.09.18"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]
[WhiteTeam "Lohmar"]
[BlackTeam "Godesberg IV"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. g3 cxd4 6. cxd4 Qb6 7. Nf3 Bg4 8. Nbd2 Nh6 9. h3 Bxf3 10. Nxf3 Nf5 11. Bg2 Nfxd4 12. 0-0 Nxf3+ 13. Qxf3 e6 14. Re1 Bb4 15. Rd1 0-0 16. Be3 Nxe5 17. Qh5 Qc7 18. Rac1 Nc6 19. Qg4 Bd6 20. f4 f5 21. Qe2 Qf7 22. Qb5 a6 23. Qb3 Na5 24. Qd3 Rac8 25. Bd4 Nc6 26. Bb6 Kh8 27. a3 Nb8 28. b4 Nd7 29. Bf2 Nf6 30. Qd4 Rc7 31. Qb6 Rfc8 32. Bc5 Rc6 33. Qa7 Bxc5+ 34. Rxc5 Rxc5 35. bxc5 Qc7 36. Rc1 Ne4 37. Bxe4 fxe4 38. Kf2 Qc6 39. Ke3 Qb5 40. Rc3 Qb2 0-1

[Event "Mittelrhein Verbandsliga-O 1112"]
[Site "Germany"]
[Date "2012.01.15"]
[Round "5"]
[White "Koehler, Christian Friedrich"]
[Black "Breest, Axel"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1929"]
[BlackElo "1743"]
[PlyCount "77"]
[EventDate "2011.09.18"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]
[WhiteTeam "Godesberg IV"]
[BlackTeam "Siegburg"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. Nf3 c5 3. c3 e6 4. g3 Nc6 5. Bg2 d5 6. 0-0 Bd6 7. Bf4 Bxf4 8. gxf4 Nh5 9. e3 cxd4 10. cxd4 g6 11. Nc3 f5 12. Ne5 Nxe5 13. fxe5 Bd7 14. Qb3 Qb6 15. Qxb6 axb6 16. Bxd5 exd5 17. Nxd5 Be6 18. Nc7+ Kd7 19. Nxa8 Rxa8 20. a3 Rc8 21. Rac1 Rc6 22. f3 Rxc1 23. Rxc1 h6 24. h4 Bd5 25. Kf2 Ng7 26. Rg1 Bf7 27. d5 Ke7 28. e4 Be8 29. Ke3 Nh5 30. Rc1 Kd8 31. e6 fxe4 32. Kxe4 Ng3+ 33. Ke5 Nf5 34. h5 Ne7 35. hxg6 Nxg6+ 36. Kd6 h5 37. Rc7 h4 38. e7+ Nxe7 39. Rxe7 1-0

[Event "Mittelrhein Verbandsliga-O 1112"]
[Site "Germany"]
[Date "2011.12.11"]
[Round "4"]
[White "Prinz, Rene"]
[Black "Koehler, Christian Friedrich"]
[Result "0-1"]
[ECO "A11"]
[WhiteElo "1963"]
[BlackElo "1929"]
[PlyCount "70"]
[EventDate "2011.09.18"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]
[WhiteTeam "Freibauer Eikamp"]
[BlackTeam "Godesberg IV"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. c4 c6 2. Nc3 d5 3. e3 Nf6 4. b3 e5 5. d4 Bb4 6. Bb2 Qa5 7. Nge2 Ne4 8. Qc1 dxc4 9. bxc4 Be6 10. a3 Be7 11. Ng3 Nxg3 12. hxg3 Nd7 13. Be2 Nb6 14. c5 Nc4 15. 0-0 Rd8 16. Bxc4 Bxc4 17. Rd1 Bb3 18. Rd3 exd4 19. exd4 0-0 20. Nd1 Bxd1 21. Rxd1 Rd7 22. Bc3 Qa4 23. Re1 Bf6 24. Re4 Rd5 25. Rb1 Qa6 26. Qe3 g6 27. g4 Kg7 28. Bd2 Rfd8 29. Rb4 b6 30. Re8 Rxe8 31. Qxe8 Qxa3 32. cxb6 axb6 33. Qxc6 Rxd4 34. Rxb6 Qa1+ 35. Kh2 Rxd2 0-1

[Event "Mittelrhein Verbandsliga-O 1112"]
[Site "Germany"]
[Date "2011.11.13"]
[Round "3"]
[White "Koehler, Christian Friedrich"]
[Black "Kotzian, Manfred"]
[Result "1/2-1/2"]
[ECO "E60"]
[WhiteElo "1929"]
[BlackElo "1843"]
[PlyCount "116"]
[EventDate "2011.09.18"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]
[WhiteTeam "Godesberg IV"]
[BlackTeam "Rheinbacher SF"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. b3 d6 5. Bb2 0-0 6. c4 Nbd7 7. Nbd2 Re8 8. Be2 e5 9. 0-0 e4 10. Ne1 Qe7 11. b4 d5 12. c5 c6 13. a4 Nf8 14. b5 Rb8 15. Nc2 h5 16. Nb4 Qc7 17. Qb3 Bg4 18. f3 exf3 19. gxf3 Bh3 20. Rfe1 Bh6 21. Bf1 Qd7 22. Nc2 N8h7 23. Re2 Ng5 24. Kh1 Qf5 25. Bxh3 Qxh3 26. Rf2 Qf5 27. Raf1 Qe6 28. Qd3 a6 29. b6 Re7 30. Bc1 Rbe8 31. Nb3 Nfh7 32. Na5 f5 33. h4 Nh3 34. Rg2 Rg7 35. f4 Qf6 36. Rh2 Qxh4 37. Rf3 Nxf4 38. Rxf4 Qg3 39. Rf1 Re4 40. Qd2 Nf6 41. Qg2 Qb8 42. Nb3 Ng4 43. Rh3 Rge7 44. Nd2 R4e6 45. Re1 Qe8 46. Nf1 f4 47. Rh4 fxe3 48. Rxg4 hxg4 49. Qxg4 Re4 50. Qg2 Bf4 51. Bxe3 Bxe3 52. Rxe3 Rxe3 53. Nfxe3 Rxe3 54. Nxe3 Qxe3 55. Qxg6+ Kf8 56. Qf5+ Ke7 57. Qc8 Kf6 58. Qxb7 Qh3+ 1/2-1/2

[Event "Mittelrhein Verbandsliga-O 1112"]
[Site "Germany"]
[Date "2011.10.09"]
[Round "2"]
[White "Wahl, Felix"]
[Black "Koehler, Christian Friedrich"]
[Result "0-1"]
[ECO "B19"]
[WhiteElo "2075"]
[BlackElo "1929"]
[PlyCount "96"]
[EventDate "2011.09.18"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]
[WhiteTeam "Bonn Stadtverwaltung"]
[BlackTeam "Godesberg IV"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 e6 11. Bd2 Ngf6 12. 0-0-0 Be7 13. c4 0-0 14. Kb1 a5 15. Ne4 Ng4 16. Qe2 b5 17. c5 Ndf6 18. Nxf6+ Nxf6 19. Ne5 Qxd4 20. Nxc6 Qxc5 21. Nxe7+ Qxe7 22. g4 Qb7 23. f3 Nh7 24. f4 b4 25. g5 Qd5 26. gxh6 Qf5+ 27. Ka1 gxh6 28. Be3 Nf6 29. Bd4 Kh7 30. Rhg1 Rg8 31. Bxf6 Qxf6 32. Qe4+ Kh8 33. Kb1 Rad8 34. Rxg8+ Rxg8 35. Qd4 Qxd4 36. Rxd4 Rg1+ 37. Kc2 Rh1 38. f5 Rxh5 39. fxe6 fxe6 40. Rd6 Re5 41. Ra6 Kg7 42. Kd3 Kf6 43. Kd4 h5 44. Ra8 Rd5+ 45. Ke4 h4 46. Rh8 Rd2 47. Rh5 Rxb2 48. Rxa5 h3 0-1

[Event "Mittelrhein Verbandsliga-O 1112"]
[Site "Germany"]
[Date "2011.09.18"]
[Round "1"]
[White "Schott, Guido"]
[Black "Koehler, Christian Friedrich"]
[Result "0-1"]
[ECO "B10"]
[WhiteElo "2093"]
[BlackElo "1929"]
[PlyCount "90"]
[EventDate "2011.09.18"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]
[WhiteTeam "Hennef"]
[BlackTeam "Godesberg IV"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c6 2. d3 d5 3. Nd2 e5 4. Ngf3 Bd6 5. g3 Nf6 6. Bg2 0-0 7. 0-0 Re8 8. Re1 Nbd7 9. exd5 cxd5 10. c4 d4 11. Ng5 Nc5 12. Nde4 h6 13. Nxc5 Bxc5 14. Ne4 Nxe4 15. Bxe4 Bd6 16. Bd2 a5 17. b3 Rb8 18. Qh5 Re6 19. Re2 b6 20. Rae1 Bb7 21. Bxb7 Rxb7 22. f4 f6 23. Qf3 Qd7 24. Qd5 Bb8 25. fxe5 Qxd5 26. cxd5 Rxe5 27. Bf4 Rxe2 28. Rxe2 Bxf4 29. gxf4 Rd7 30. Re6 Rxd5 31. Rxb6 Rc5 32. Rd6 Rc1+ 33. Kf2 Rc2+ 34. Kg3 Rxa2 35. Rxd4 Rb2 36. Rd5 Rxb3 37. Rxa5 Rxd3+ 38. Kg4 Rd7 39. h4 Kf7 40. Ra6 Kg6 41. f5+ Kh7 42. Ra4 Rd1 43. Ra7 Rd4+ 44. Kh5 Rf4 45. Ra5 Rxf5+ 0-1

[Event "Oberliga Sued W 9394"]
[Site "Germany"]
[Date "1994.??.??"]
[Round "?"]
[White "Thomas, Andreas"]
[Black "Koehler, Christian Friedrich"]
[Result "1-0"]
[ECO "B02"]
[PlyCount "23"]
[EventDate "1993.10.??"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. Nc3 d5 2. e4 Nf6 3. exd5 Nxd5 4. Bc4 e6 5. Nf3 Be7 6. 0-0 0-0 7. Qe2 c5 8. d4 Nc6 9. Rd1 cxd4 10. Nxd5 exd5 11. Nxd4 Re8 12. Be3 1-0

