[Event "Mittelrhein Regionalliga 1920"]
[Site "Mittelrhein"]
[Date "2020.02.16"]
[Round "6.1"]
[White "Cordts, Ingo"]
[Black "Keller, Karsten"]
[Result "1-0"]
[ECO "E01"]
[WhiteElo "2216"]
[BlackElo "2132"]
[PlyCount "119"]
[EventDate "2019.09.29"]
[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 "Koeln Ford SF"]
[BlackTeam "Langenfeld II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. g3 Bb4+ 5. Bd2 Bd6 6. Nc3 c6 7. Bg5 Nbd7 8. Bg2 0-0 9. 0-0 h6 10. Bxf6 Nxf6 11. Qd3 b6 12. e4 dxe4 13. Nxe4 Nxe4 14. Qxe4 Ba6 15. Ne5 Qc7 16. Rfe1 c5 17. dxc5 bxc5 18. b3 Rad8 19. f4 Rfe8 20. Qc6 Bxe5 21. Rxe5 Qxc6 22. Bxc6 Re7 23. Rxc5 Rc7 24. b4 Rd2 25. Bb5 Rxc5 26. bxc5 Bc8 27. Rb1 Kf8 28. Bc6 Ke7 29. a4 Kd8 30. h4 Kc7 31. Be8 f6 32. c6 Rc2 33. Bd7 Rxc4 34. Bxc8 Kxc8 35. Rb7 Rxa4 36. Rxg7 e5 37. fxe5 fxe5 38. Kf2 a5 39. Ke3 Rc4 40. Ra7 Rxc6 41. Rxa5 Rg6 42. Kf3 Rf6+ 43. Ke4 Rg6 44. Ra3 Rg4+ 45. Kf3 Rg6 46. Rd3 Kc7 47. Ke4 Rg4+ 48. Kxe5 h5 49. Ke6 Rg6+ 50. Ke7 Rg7+ 51. Kf6 Rg4 52. Rd5 Rxg3 53. Rxh5 Rh3 54. Kg5 Kd7 55. Kg4 Rh1 56. Re5 Kd6 57. Re2 Rg1+ 58. Kf5 Rh1 59. Kg5 Kd7 60. h5 1-0

[Event "Mittelrhein Regionalliga 1920"]
[Site "Mittelrhein"]
[Date "2020.01.19"]
[Round "5.1"]
[White "Keller, Karsten"]
[Black "Meirick, Ingo"]
[Result "1-0"]
[ECO "A14"]
[WhiteElo "2132"]
[BlackElo "2183"]
[PlyCount "53"]
[EventDate "2019.09.29"]
[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 "Langenfeld II"]
[BlackTeam "Herzogenrath"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. c4 e6 2. Nf3 d5 3. e3 Nf6 4. b3 dxc4 5. bxc4 c5 6. g3 b6 7. Bg2 Bb7 8. 0-0 Be7 9. Bb2 0-0 10. Qe2 Qc7 11. Nc3 Nc6 12. Rac1 Rac8 13. Rfd1 Rfd8 14. Ba1 Qb8 15. d4 Na5 16. d5 exd5 17. Nh4 dxc4 18. Nf5 Bf8 19. Nd5 Nxd5 20. Nh6+ Kh8 21. Nxf7+ Kg8 22. Nh6+ Kh8 23. Qg4 Nc7 24. Bxb7 Qxb7 25. Nf7+ Kg8 26. Nxd8 Rxd8 27. Rxd8 1-0

[Event "Mittelrhein Regionalliga 1920"]
[Site "Mittelrhein"]
[Date "2019.12.08"]
[Round "4.1"]
[White "Schulz, Wilhelm"]
[Black "Keller, Karsten"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2077"]
[BlackElo "2132"]
[PlyCount "73"]
[EventDate "2019.09.29"]
[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 "Horrem"]
[BlackTeam "Langenfeld II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nf3 Nc6 3. c3 Nf6 4. d3 g6 5. Be2 Bg7 6. Be3 d6 7. Nbd2 0-0 8. Qc2 b6 9. h3 d5 10. e5 Ne8 11. d4 Bf5 12. Qa4 cxd4 13. cxd4 Rc8 14. 0-0 Bd7 15. Qa3 f6 16. Ba6 Rc7 17. exf6 Rxf6 18. Qb3 Be6 19. Bg5 Rf5 20. Qe3 Bf7 21. Bd3 Nxd4 22. Bxf5 Nxf5 23. Qa3 Rc2 24. Qxa7 h6 25. Bf4 g5 26. Bh2 Bxb2 27. Rad1 Ned6 28. g4 Nh4 29. Rfe1 Ne4 30. Nxh4 Nxd2 31. Rxe7 gxh4 32. Rxf7 Qe8 33. Re7 Qf8 34. Bf4 Bd4 35. Qd7 Nf3+ 36. Kh1 Bg7 37. Re8 1-0

[Event "Mittelrhein Regionalliga 1920"]
[Site "Mittelrhein"]
[Date "2019.11.17"]
[Round "3.1"]
[White "Lunnebach, Oliver"]
[Black "Keller, Karsten"]
[Result "1-0"]
[ECO "C17"]
[WhiteElo "2154"]
[BlackElo "2132"]
[PlyCount "69"]
[EventDate "2019.09.29"]
[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 "Kalker/Deutzer SG"]
[BlackTeam "Langenfeld II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2 Nh6 6. Nb5 Bxd2+ 7. Qxd2 0-0 8. dxc5 Nc6 9. Nf3 f6 10. exf6 Qxf6 11. 0-0-0 Bd7 12. Bd3 a6 13. Nc3 Ne5 14. Nxe5 Qxe5 15. Rde1 Qf6 16. Nd1 Rac8 17. Kb1 Rxc5 18. Qb4 Rfc8 19. Qxb7 Bb5 20. Bxb5 Rxc2 21. a3 Rc1+ 22. Ka2 Qg6 23. Bxa6 Qb1+ 24. Kb3 Qc2+ 25. Kb4 Qd2+ 26. Ka4 Qd4+ 27. b4 R1c7 28. Qb5 Qf6 29. Bxc8 Rxc8 30. Qd7 Ra8+ 31. Kb3 Qa1 32. Qxe6+ Kh8 33. Nb2 Qxa3+ 34. Kc2 d4 35. Qc6 1-0

[Event "Mittelrhein Regionalliga 1920"]
[Site "Mittelrhein"]
[Date "2019.10.27"]
[Round "2.1"]
[White "Keller, Karsten"]
[Black "Gallinnis, Norbert"]
[Result "0-1"]
[ECO "A30"]
[WhiteElo "2132"]
[BlackElo "2066"]
[PlyCount "102"]
[EventDate "2019.09.29"]
[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 "Langenfeld II"]
[BlackTeam "Koeln Porz III"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. c4 Nf6 2. Nc3 c5 3. Nf3 e6 4. g3 b6 5. Bg2 Bb7 6. 0-0 Be7 7. Re1 0-0 8. e4 d6 9. d4 cxd4 10. Nxd4 Qc8 11. Be3 a6 12. Rc1 Nbd7 13. f4 Qc7 14. g4 Ne8 15. Nd5 exd5 16. cxd5 Qd8 17. Nc6 Bxc6 18. dxc6 Nc5 19. b4 Ne6 20. f5 N6c7 21. Bxb6 Rb8 22. Ba5 Bf6 23. a4 Be5 24. Qd2 Qh4 25. Bf3 h5 26. Qg2 hxg4 27. Bxg4 Bd4+ 28. Kh1 Bb6 29. Bxb6 Rxb6 30. b5 axb5 31. a5 Ra6 32. Rg1 Rxa5 33. Rc3 Qf6 34. Rg3 Ra1 35. Bd1 Qd4 36. f6 Qxf6 37. Qh3 Ne6 38. Qh5 Nf4 39. Qf3 Ng6 40. Qxf6 Nxf6 41. Rxg6 Rxd1 42. Rxd1 fxg6 43. e5 Rc8 44. Rxd6 Ne8 45. Rd5 Nc7 46. Rd7 b4 47. Kg2 b3 48. Rd2 Rb8 49. Rb2 Kf7 50. Kf3 Ke6 51. Kg4 Kxe5 0-1

[Event "Mittelrhein Regionalliga 1920"]
[Site "Mittelrhein"]
[Date "2019.09.29"]
[Round "1.1"]
[White "Meertens, Martin"]
[Black "Keller, Karsten"]
[Result "1/2-1/2"]
[ECO "B44"]
[WhiteElo "2171"]
[BlackElo "2132"]
[PlyCount "39"]
[EventDate "2019.09.29"]
[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 "Koeln SF II"]
[BlackTeam "Langenfeld II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nxc6 bxc6 6. c4 Nf6 7. Nc3 Bb4 8. Bd2 e5 9. Bd3 0-0 10. 0-0 Bc5 11. Bg5 h6 12. Bh4 d6 13. Kh1 g5 14. Bg3 h5 15. Qd2 Ng4 16. f3 Nh6 17. Rae1 Be6 18. Bf2 Bxf2 19. Rxf2 Kg7 20. Rd1 1/2-1/2

[Event "Mittelrhein Verbandsliga-N 18/19"]
[Site "Nordrheinwestfalen"]
[Date "2019.05.19"]
[Round "11.1"]
[White "Keller, Karsten"]
[Black "Scharfenberg, Michael"]
[Result "1/2-1/2"]
[ECO "A96"]
[WhiteElo "2093"]
[BlackElo "2156"]
[PlyCount "59"]
[EventDate "2018.09.02"]
[EventType "team-tourn"]
[EventRounds "12"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Langenfeld II"]
[BlackTeam "Koeln Worringen"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 f5 2. d4 Nf6 3. c4 e6 4. g3 Be7 5. Bg2 0-0 6. 0-0 d6 7. Nc3 Ne4 8. Nxe4 fxe4 9. Nd2 d5 10. f3 Nc6 11. fxe4 Rxf1+ 12. Nxf1 dxc4 13. Be3 Bd7 14. Bh3 e5 15. Bxd7 Qxd7 16. d5 Nd8 17. Nd2 b5 18. b3 c3 19. Nf3 Nf7 20. Qd3 b4 21. a3 c5 22. axb4 cxb4 23. Ra6 Rc8 24. Ne1 Rc7 25. Nc2 Bd6 26. Kg2 h5 27. Bc1 h4 28. h3 hxg3 29. Ra4 Rb7 30. Ne3 1/2-1/2

[Event "Mittelrhein Regionalliga 18/19"]
[Site "Nordrheinwestfalen"]
[Date "2019.05.05"]
[Round "10.8"]
[White "Keller, Karsten"]
[Black "Auschkalnis, Reinhard"]
[Result "1-0"]
[ECO "E14"]
[WhiteElo "2093"]
[BlackElo "1738"]
[PlyCount "95"]
[EventDate "2018.10.28"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Langenfeld"]
[BlackTeam "Bonn Beuel"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 Nf6 2. c4 e6 3. e3 b6 4. b3 Bb7 5. Bb2 Be7 6. Nc3 d5 7. cxd5 exd5 8. d4 Nbd7 9. Bd3 Ne4 10. 0-0 0-0 11. Rc1 Re8 12. Qc2 Ndf6 13. Ne5 a6 14. Nxe4 dxe4 15. Bc4 Rf8 16. Bxf7+ Rxf7 17. Nxf7 Kxf7 18. Qxc7 Bd5 19. Ba3 b5 20. Bxe7 Qxe7 21. Qf4 Ra7 22. Rc5 Rd7 23. Rfc1 Qd6 24. Qg5 Re7 25. h3 Rd7 26. Qf5 Be6 27. Qe5 Qxe5 28. Rxe5 h6 29. Rc6 Bd5 30. Rxa6 Ne8 31. Ra5 Nc7 32. Ra7 Bc6 33. d5 Bxd5 34. Rxc7 Rxc7 35. Rxd5 Rc1+ 36. Kh2 Rc2 37. Kg3 Rxa2 38. Rxb5 Rb2 39. h4 g6 40. Rb6 Kg7 41. b4 Kf7 42. b5 Kg7 43. Rb8 Kf7 44. b6 h5 45. b7 Kg7 46. f3 exf3 47. gxf3 Kf7 48. Rh8 1-0

[Event "Mittelrhein Verbandsliga-N 18/19"]
[Site "Nordrheinwestfalen"]
[Date "2019.04.07"]
[Round "9.1"]
[White "Keller, Karsten"]
[Black "Wieferig, Wolfgang"]
[Result "1/2-1/2"]
[ECO "D94"]
[WhiteElo "2093"]
[BlackElo "2185"]
[PlyCount "151"]
[EventDate "2018.09.02"]
[EventType "team-tourn"]
[EventRounds "12"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Langenfeld II"]
[BlackTeam "Eikamp ISVFB"]
[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 Re8 8. h3 Nbd7 9. cxd5 cxd5 10. Qb3 e6 11. Rd1 b6 12. Bd2 Bb7 13. Nb5 Ne4 14. Rac1 Ba6 15. Bb4 Bxb5 16. Bxb5 a6 17. Bc6 Ra7 18. a4 Qb8 19. Qd3 Rd8 20. Bxd7 Rdxd7 21. Rc2 Rdc7 22. Rdc1 h6 23. b3 Kh7 24. Nd2 a5 25. Ba3 Rxc2 26. Rxc2 Nxd2 27. Qxd2 b5 28. Bc5 Rb7 29. Qxa5 bxa4 30. b4 Bf8 31. Bxf8 Qxf8 32. Qxa4 Rxb4 33. Qd7 g5 34. Rc7 Kg6 35. g4 Rc4 36. Rb7 Qg7 37. Kg2 Qf6 38. Qe8 Rc2 39. Qg8+ Qg7 40. Qe8 Rd2 41. Rd7 Rb2 42. Qc8 h5 43. Qc1 Rb4 44. Qc2+ Kh6 45. Qc7 hxg4 46. hxg4 Kg6 47. Rxd5 Qf6 48. Rc5 Rb2 49. Rc2 Rb5 50. Qh2 Qe7 51. Rc7 Qe8 52. Qd6 Qa8+ 53. Qc6 Qxc6+ 54. Rxc6 Kf6 55. Kf3 Rb2 56. Rc3 Rd2 57. Rc1 Ke7 58. Rf1 f5 59. gxf5 exf5 60. Ra1 g4+ 61. Kg3 Kf6 62. Ra6+ Kg5 63. Re6 Rd3 64. Re5 Rd1 65. f3 gxf3 66. Kxf3 Rd2 67. Re8 Kf6 68. Rg8 Kf7 69. Rg2 Rd1 70. Ke2 Ra1 71. Kf3 Ke6 72. Rb2 Rf1+ 73. Ke2 Rh1 74. Kd3 Rd1+ 75. Rd2 Rh1 76. Ra2 1/2-1/2

[Event "Mittelrhein Verbandsliga-N 18/19"]
[Site "Nordrheinwestfalen"]
[Date "2019.03.10"]
[Round "8.1"]
[White "Schniggenberg, Gerd"]
[Black "Keller, Karsten"]
[Result "0-1"]
[ECO "C02"]
[WhiteElo "1924"]
[BlackElo "2093"]
[PlyCount "70"]
[EventDate "2018.09.02"]
[EventType "team-tourn"]
[EventRounds "12"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Godesberg III"]
[BlackTeam "Langenfeld II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. a3 Nh6 7. b4 cxd4 8. cxd4 Nf5 9. Bb2 Bd7 10. Be2 Be7 11. g4 Nh4 12. 0-0 Nxf3+ 13. Bxf3 0-0 14. Qd3 f6 15. Nd2 fxe5 16. dxe5 Bg5 17. Nb3 Ne7 18. Bd4 Bb5 19. Qd1 Qd8 20. Be2 Bxe2 21. Qxe2 Ng6 22. Nc5 Qe7 23. Nd3 Nf4 24. Nxf4 Rxf4 25. Bc5 Qf7 26. f3 Rc4 27. Rad1 b6 28. Be3 Bf4 29. Bxf4 Qxf4 30. Rf2 Rf8 31. Kg2 h5 32. h3 h4 33. Qf1 Rc3 34. Rd3 Qg3+ 35. Kh1 Rxd3 0-1

[Event "Mittelrhein Verbandsliga-N 18/19"]
[Site "Nordrheinwestfalen"]
[Date "2019.02.10"]
[Round "7.1"]
[White "Keller, Karsten"]
[Black "Kersten, Alexander"]
[Result "1-0"]
[ECO "B27"]
[WhiteElo "2093"]
[BlackElo "1876"]
[PlyCount "73"]
[EventDate "2018.09.02"]
[EventType "team-tourn"]
[EventRounds "12"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Langenfeld II"]
[BlackTeam "Rheinpark BSG"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 g6 2. e4 Bg7 3. d4 c5 4. dxc5 Qa5+ 5. Bd2 Qxc5 6. Nc3 Nf6 7. Bd3 d6 8. 0-0 a6 9. Be3 Qc7 10. Na4 Nbd7 11. c4 Ng4 12. Bg5 b6 13. h3 h6 14. Bh4 Ngf6 15. Qe2 Nh5 16. Nd2 Nc5 17. Nxc5 dxc5 18. e5 Qxe5 19. Qf3 Qb8 20. Be4 Ra7 21. Bc6+ Kf8 22. Ne4 Be6 23. Rad1 Bd4 24. Bd5 Bxd5 25. cxd5 Qf4 26. Qxf4 Nxf4 27. b4 Rd7 28. bxc5 bxc5 29. Rfe1 Nxd5 30. Rc1 Rc7 31. Red1 Kg7 32. Bg3 Rc6 33. Rxd4 cxd4 34. Rxc6 f6 35. f3 Rb8 36. Rxa6 Ne3 37. Bxb8 1-0

[Event "Mittelrhein Verbandsliga-N 18/19"]
[Site "Nordrheinwestfalen"]
[Date "2019.01.20"]
[Round "6.1"]
[White "Bosbach, Stefan"]
[Black "Keller, Karsten"]
[Result "1/2-1/2"]
[ECO "A35"]
[WhiteElo "2086"]
[BlackElo "2093"]
[PlyCount "104"]
[EventDate "2018.09.02"]
[EventType "team-tourn"]
[EventRounds "12"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Bergische SF"]
[BlackTeam "Langenfeld II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 c5 2. c4 Nc6 3. Nc3 e5 4. d3 g6 5. Bd2 Bg7 6. g3 d6 7. Bg2 Nge7 8. Qc1 h6 9. Rb1 Be6 10. a3 a5 11. e4 Rb8 12. h4 Qd7 13. Nb5 b6 14. b3 Na7 15. Nc3 b5 16. Nd5 b4 17. axb4 axb4 18. Ra1 Nac8 19. Ra6 Nxd5 20. exd5 Bf5 21. Qc2 0-0 22. Nh2 Bh3 23. 0-0 Bxg2 24. Kxg2 Ne7 25. g4 f5 26. f3 fxg4 27. fxg4 Rxf1 28. Kxf1 h5 29. Qd1 Rf8+ 30. Kg2 e4 31. gxh5 Nf5 32. Bg5 gxh5 33. dxe4 Nd4 34. Qxh5 Nxb3 35. Qg6 Qf7 36. Qxf7+ Rxf7 37. Rxd6 Na5 38. Rd8+ Kh7 39. d6 Nxc4 40. d7 Kg6 41. Rc8 Rxd7 42. Rxc5 Nd2 43. Rb5 b3 44. e5 Kf5 45. Bf6 Bf8 46. Nf3 Nxf3 47. Kxf3 Rd3+ 48. Ke2 Rh3 49. h5 Ba3 50. h6 Ke4 51. h7 Rh2+ 52. Kf1 Rxh7 1/2-1/2

[Event "Mittelrhein Verbandsliga-N 18/19"]
[Site "Nordrheinwestfalen"]
[Date "2018.12.16"]
[Round "5.1"]
[White "Keller, Karsten"]
[Black "Lunnebach, Oliver"]
[Result "1-0"]
[ECO "B38"]
[WhiteElo "2093"]
[BlackElo "2117"]
[PlyCount "17"]
[EventDate "2018.09.02"]
[EventType "team-tourn"]
[EventRounds "12"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Langenfeld II"]
[BlackTeam "Kalker/Deutzer SG"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 c5 2. c4 Nf6 3. Nc3 g6 4. d4 cxd4 5. Nxd4 Bg7 6. e4 0-0 7. Be3 Nc6 8. Be2 d6 9. 0-0 1-0

[Event "Mittelrhein Verbandsliga-N 18/19"]
[Site "Nordrheinwestfalen"]
[Date "2018.11.18"]
[Round "4.1"]
[White "Negele, Michael"]
[Black "Keller, Karsten"]
[Result "0-1"]
[ECO "B21"]
[WhiteElo "2101"]
[BlackElo "2093"]
[PlyCount "64"]
[EventDate "2018.09.02"]
[EventType "team-tourn"]
[EventRounds "12"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Leverkusen SC Bayer"]
[BlackTeam "Langenfeld II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 d6 6. Bc4 a6 7. 0-0 Nf6 8. h3 e6 9. Qe2 Be7 10. Rd1 Qc7 11. Bf4 Ne5 12. Bb3 Qb8 13. Nd4 0-0 14. g4 h6 15. Bg3 Bd7 16. Rd2 b5 17. f4 Nc6 18. Nf3 Na5 19. Kh2 b4 20. Na4 Nxb3 21. axb3 Qb7 22. e5 Ne4 23. Rc2 Rac8 24. Rac1 Rxc2 25. Rxc2 Bb5 26. Qe3 Nxg3 27. Kxg3 dxe5 28. Nxe5 Rd8 29. Nb6 Qh1 30. Nf3 Rd3 31. Rc8+ Kh7 32. Qe4+ f5 0-1

[Event "Mittelrhein Verbandsliga-N 18/19"]
[Site "Nordrheinwestfalen"]
[Date "2018.10.28"]
[Round "3.1"]
[White "Keller, Karsten"]
[Black "Kocur, Alois"]
[Result "1/2-1/2"]
[ECO "A10"]
[WhiteElo "2093"]
[BlackElo "2167"]
[PlyCount "26"]
[EventDate "2018.09.02"]
[EventType "team-tourn"]
[EventRounds "12"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Langenfeld II"]
[BlackTeam "Hitdorf SV Springer"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. c4 Nf6 2. Nc3 g6 3. e4 e5 4. Nf3 Bg7 5. d4 exd4 6. Nxd4 0-0 7. Be3 Re8 8. f3 c6 9. c5 b6 10. Nb3 bxc5 11. Bxc5 d5 12. Be2 Nbd7 13. Bd4 dxe4 1/2-1/2

[Event "Mittelrhein Verbandsliga-N 18/19"]
[Site "Nordrheinwestfalen"]
[Date "2018.09.30"]
[Round "2.1"]
[White "Schalow, Daniel"]
[Black "Keller, Karsten"]
[Result "0-1"]
[ECO "A43"]
[WhiteElo "2025"]
[BlackElo "2093"]
[PlyCount "62"]
[EventDate "2018.09.02"]
[EventType "team-tourn"]
[EventRounds "12"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Baumberg"]
[BlackTeam "Langenfeld II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 e6 2. c4 c5 3. d5 exd5 4. cxd5 d6 5. e4 g6 6. Bc4 Bg7 7. Ne2 Nf6 8. Nbc3 0-0 9. 0-0 Re8 10. f3 Nbd7 11. Ng3 h5 12. Bg5 Ne5 13. Bb5 Bd7 14. Bxd7 Qxd7 15. Qc2 Nh7 16. Bd2 a6 17. a4 b6 18. Rae1 c4 19. Be3 Nd3 20. Ra1 b5 21. a5 f5 22. Qd2 h4 23. Nge2 fxe4 24. fxe4 b4 25. Na4 Rxe4 26. Nb6 Qe7 27. Nxc4 Nxb2 28. Nxb2 Rxe3 29. Nf4 Qe4 30. Rf2 Bc3 31. Qc2 Re1+ 0-1

[Event "Mittelrhein Verbandsliga-N 18/19"]
[Site "Nordrheinwestfalen"]
[Date "2018.09.02"]
[Round "1.1"]
[White "Gallasch, Jonas"]
[Black "Keller, Karsten"]
[Result "1-0"]
[ECO "A85"]
[WhiteElo "2050"]
[BlackElo "2093"]
[PlyCount "55"]
[EventDate "2018.09.02"]
[EventType "team-tourn"]
[EventRounds "12"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Porz SG III"]
[BlackTeam "Langenfeld II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 f5 2. d4 Nf6 3. c4 g6 4. Nc3 Bg7 5. e3 0-0 6. Be2 e6 7. b3 b6 8. Bb2 Bb7 9. 0-0 d6 10. b4 Qe7 11. Qb3 h6 12. c5 a6 13. Rfc1 Kh8 14. cxb6 cxb6 15. b5 a5 16. Ba3 Nbd7 17. Nd2 e5 18. Nc4 Ne8 19. dxe5 Nxe5 20. Nxb6 Qg5 21. Ncd5 Ng4 22. Bb2 Qh4 23. Bxg4 fxg4 24. Bxg7+ Nxg7 25. Nf4 Kh7 26. Nxa8 Bxa8 27. Rc7 Bxg2 28. Qb2 1-0

[Event "Mittelrhein Verbandsliga-N 17/18"]
[Site "Nordrheinwestfalen"]
[Date "2018.05.06"]
[Round "11.1"]
[White "Keller, Karsten"]
[Black "Niederreuther, Mark Niels"]
[Result "0-1"]
[ECO "D61"]
[WhiteElo "2109"]
[BlackElo "1907"]
[PlyCount "106"]
[EventDate "2017.09.10"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Langenfeld II"]
[BlackTeam "Gruenfeld"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 d5 2. d4 c6 3. c4 Nf6 4. Nc3 e6 5. Bg5 Be7 6. e3 0-0 7. Qc2 Nbd7 8. Rd1 h6 9. Bh4 dxc4 10. Bxc4 Nd5 11. Bxe7 Qxe7 12. 0-0 Nxc3 13. Qxc3 Nb6 14. Bb3 Nd5 15. Qc2 Bd7 16. a3 Rac8 17. Ne5 Rfd8 18. Rfe1 Be8 19. e4 Nb6 20. Qc5 Qxc5 21. dxc5 Nd7 22. Nxd7 Rxd7 23. Rxd7 Bxd7 24. f4 Kf8 25. Kf2 Ke7 26. Ke3 b6 27. Rc1 Rb8 28. Ba4 bxc5 29. b3 Kd6 30. e5+ Kc7 31. Rxc5 Rd8 32. b4 Kb6 33. Rc2 Be8 34. g4 Ra8 35. Rb2 a6 36. h4 Bd7 37. h5 Kc7 38. Rc2 Kb6 39. Rb2 Kc7 40. Kd4 c5+ 41. Kxc5 Bxa4 42. Rd2 Rd8 43. Rxd8 Kxd8 44. Kb6 Bb5 45. g5 Kd7 46. a4 Bxa4 47. Kxa6 Kc6 48. Ka5 Bd1 49. b5+ Kc5 50. b6 Bf3 51. f5 exf5 52. g6 fxg6 53. hxg6 Bb7 0-1

[Event "Mittelrhein Verbandsliga-N 17/18"]
[Site "Nordrheinwestfalen"]
[Date "2018.04.15"]
[Round "10.1"]
[White "Brinkmann, Sven"]
[Black "Keller, Karsten"]
[Result "1/2-1/2"]
[ECO "A08"]
[WhiteElo "1977"]
[BlackElo "2109"]
[PlyCount "47"]
[EventDate "2017.09.10"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Koeln Muelheim"]
[BlackTeam "Langenfeld II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nf3 Nc6 3. g3 e6 4. d3 d5 5. Nbd2 Bd6 6. Bg2 Nge7 7. 0-0 0-0 8. Re1 f6 9. Nf1 b6 10. Ne3 Bc7 11. c3 a5 12. exd5 exd5 13. d4 Be6 14. a4 Qd7 15. b3 cxd4 16. Nxd4 Nxd4 17. cxd4 Bd6 18. Bb2 Bb4 19. Re2 Bf7 20. Nc2 Bd6 21. Ba3 Nc6 22. Bxd6 Qxd6 23. Qd2 Rae8 24. Rae1 1/2-1/2

[Event "Mittelrhein Verbandsliga-N 17/18"]
[Site "Nordrheinwestfalen"]
[Date "2018.03.18"]
[Round "9.1"]
[White "Bosbach, Stefan"]
[Black "Keller, Karsten"]
[Result "1/2-1/2"]
[ECO "A38"]
[WhiteElo "2087"]
[BlackElo "2109"]
[PlyCount "42"]
[EventDate "2017.09.10"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Bergische SF"]
[BlackTeam "Langenfeld II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 c5 2. c4 Nc6 3. Nc3 g6 4. g3 Bg7 5. Bg2 Nf6 6. 0-0 0-0 7. d3 d5 8. cxd5 Nxd5 9. Bd2 e6 10. Rc1 b6 11. h4 h6 12. a3 Nde7 13. Na4 Bd7 14. Bc3 e5 15. b4 Nd5 16. Ba1 cxb4 17. Qb3 Nc3 18. Nxc3 bxc3 19. Bxc3 Rc8 20. Qb2 Re8 21. e3 Qe7 1/2-1/2

[Event "Mittelrhein Verbandsliga-N 17/18"]
[Site "Nordrheinwestfalen"]
[Date "2018.02.25"]
[Round "8.1"]
[White "Keller, Karsten"]
[Black "Cordts, Ingo"]
[Result "1/2-1/2"]
[ECO "A13"]
[WhiteElo "2109"]
[BlackElo "2189"]
[PlyCount "15"]
[EventDate "2017.09.10"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Langenfeld II"]
[BlackTeam "Koeln Ford SF"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. c4 e6 2. Nf3 d5 3. e3 Nf6 4. b3 g6 5. Bb2 Bg7 6. g3 0-0 7. Bg2 c5 8. 0-0 1/2-1/2

[Event "Mittelrhein Verbandsliga-N 17/18"]
[Site "Nordrheinwestfalen"]
[Date "2018.02.04"]
[Round "7.1"]
[White "Kagan, Dennis"]
[Black "Keller, Karsten"]
[Result "0-1"]
[ECO "C02"]
[WhiteElo "1870"]
[BlackElo "2109"]
[PlyCount "60"]
[EventDate "2017.09.10"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Porz SG IV"]
[BlackTeam "Langenfeld II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. a3 Nh6 7. b4 cxd4 8. cxd4 Nf5 9. Be3 f6 10. exf6 gxf6 11. Nc3 Nxe3 12. fxe3 Bh6 13. b5 Ne7 14. Ne5 fxe5 15. Qh5+ Kd7 16. Qxh6 exd4 17. Qf6 dxc3 18. Qxh8 Qxe3+ 19. Be2 Nf5 20. Qxh7+ Kd6 21. Qh3 Qd2+ 22. Kf2 Qf4+ 23. Ke1 Qd2+ 24. Kf2 Qd4+ 25. Ke1 Ne3 26. Rc1 e5 27. Qh6+ Be6 28. Qg6 Qd2+ 29. Kf2 Ng4+ 30. Kg3 Qf4+ 0-1

[Event "Mittelrhein Verbandsliga-N 17/18"]
[Site "Nordrheinwestfalen"]
[Date "2018.01.14"]
[Round "6.1"]
[White "Keller, Karsten"]
[Black "Kocur, Alois"]
[Result "0-1"]
[ECO "A34"]
[WhiteElo "2109"]
[BlackElo "2158"]
[PlyCount "80"]
[EventDate "2017.09.10"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Langenfeld II"]
[BlackTeam "Hitdorf SV Springer"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 Nf6 2. c4 c5 3. Nc3 d5 4. cxd5 Nxd5 5. e3 Nxc3 6. bxc3 g6 7. Qb3 Bg7 8. h4 h6 9. Ba3 Qc7 10. Bb5+ Bd7 11. Rb1 b6 12. d4 0-0 13. dxc5 bxc5 14. 0-0 Be6 15. Bc4 Bxc4 16. Qxc4 Nd7 17. Rfd1 Rfc8 18. Qa4 Nb6 19. Qa6 e6 20. c4 Qc6 21. Bb2 Qe4 22. Bxg7 Kxg7 23. Rbc1 Rc7 24. Qa5 Rac8 25. a4 Kg8 26. Qb5 Rb7 27. a5 Nd7 28. Nd2 Qc6 29. Qxc6 Rxc6 30. Ne4 Kf8 31. Rb1 Rbc7 32. Rb5 Ke7 33. Rdb1 Ne5 34. Nd2 Rd6 35. Nb3 Nxc4 36. Nxc5 Rdc6 37. Nd3 Na3 38. R1b3 Nxb5 39. Rxb5 Rc3 40. Nb4 R3c5 0-1

[Event "Mittelrhein Regionalliga 1718"]
[Site "Nordrheinwestfalen"]
[Date "2017.12.03"]
[Round "4.8"]
[White "Keller, Karsten"]
[Black "Mersch, Peter Daniel"]
[Result "1-0"]
[ECO "A09"]
[WhiteElo "2130"]
[BlackElo "1734"]
[PlyCount "95"]
[EventDate "2017.09.10"]
[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 "Langenfeld"]
[BlackTeam "Klub Koelner SF II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 d5 2. c4 dxc4 3. e3 Nf6 4. Bxc4 e6 5. 0-0 Be7 6. b3 0-0 7. Bb2 b6 8. Qe2 Bb7 9. Nc3 Nbd7 10. d4 Ne4 11. Rfd1 Ndf6 12. Ne5 Nxc3 13. Bxc3 a6 14. Qb2 Bd6 15. b4 Qe7 16. b5 axb5 17. Bxb5 Bxe5 18. dxe5 Nd5 19. a4 Nxc3 20. Qxc3 Rfd8 21. f4 Rxd1+ 22. Rxd1 Rd8 23. Rc1 Rc8 24. Bc6 Bxc6 25. Qxc6 Qa3 26. Kf2 Qa2+ 27. Kf3 Qd5+ 28. Qxd5 exd5 29. e4 dxe4+ 30. Kxe4 Kf8 31. f5 Ke7 32. g4 c5 33. Rb1 Rb8 34. a5 b5 35. Kd5 c4 36. Kc5 c3 37. Kb4 Rc8 38. Rc1 Rc4+ 39. Kxb5 Rxg4 40. Rxc3 Kd7 41. a6 Rg1 42. Ra3 Rb1+ 43. Kc5 Rc1+ 44. Kd5 Rc8 45. a7 Ra8 46. e6+ fxe6+ 47. fxe6+ Ke7 48. Kc6 1-0

[Event "Mittelrhein Verbandsliga-N 17/18"]
[Site "Nordrheinwestfalen"]
[Date "2017.11.12"]
[Round "4.1"]
[White "Keller, Karsten"]
[Black "Wimmer, Juergen"]
[Result "0-1"]
[ECO "A42"]
[WhiteElo "2130"]
[BlackElo "2229"]
[PlyCount "102"]
[EventDate "2017.09.10"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Langenfeld II"]
[BlackTeam "Dormagen SV"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 d6 2. d4 g6 3. c4 Bg7 4. Nc3 Nd7 5. e4 e5 6. Be2 Ne7 7. h4 exd4 8. Nxd4 Nc5 9. h5 Nc6 10. Be3 Ne6 11. Nxc6 bxc6 12. Qd2 c5 13. Bg4 Rb8 14. b3 Bb7 15. Bxe6 fxe6 16. Bg5 Qd7 17. hxg6 hxg6 18. 0-0-0 Qf7 19. f3 Bc6 20. Kc2 Kd7 21. Ne2 Rxh1 22. Rxh1 Rh8 23. Rxh8 Bxh8 24. Qf4 Qg7 25. Kd3 Kc8 26. Bh6 Qa1 27. Qd2 Qf1 28. Qf4 Bd4 29. Qc1 Qxg2 30. Nxd4 cxd4 31. Qd1 e5 32. Bd2 Bd7 33. Qe2 Qh1 34. Be1 Bh3 35. Qf2 Bf1+ 36. Kd2 Bg2 37. Ke2 g5 38. Bd2 g4 39. fxg4 Bxe4 40. Be1 Bc6 41. Kd2 Bd7 42. c5 Qh6+ 43. Kc2 dxc5 44. Qg2 Bc6 45. Qg3 Qg6+ 46. Kb2 Qe4 47. Qf2 Qxg4 48. Qf8+ Kb7 49. Ba5 Qe2+ 50. Ka3 Qc2 51. Bc3 dxc3 0-1

[Event "Mittelrhein Verbandsliga-N 17/18"]
[Site "Nordrheinwestfalen"]
[Date "2017.10.22"]
[Round "3.1"]
[White "Lunnebach, Oliver"]
[Black "Keller, Karsten"]
[Result "0-1"]
[ECO "A31"]
[WhiteElo "2086"]
[BlackElo "2130"]
[PlyCount "54"]
[EventDate "2017.09.10"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Kalker/Deutzer SG"]
[BlackTeam "Langenfeld II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. Nf3 c5 3. c4 cxd4 4. Nxd4 Nc6 5. Nc3 Qb6 6. Nc2 e6 7. e3 Be7 8. Be2 0-0 9. 0-0 d5 10. cxd5 Nxd5 11. Nxd5 exd5 12. Qxd5 Rd8 13. Qb5 Bf6 14. Na3 Be6 15. Nb1 Qc7 16. Nc3 a6 17. Qc5 Be5 18. f4 b6 19. Qa3 Bd6 20. Qa4 Nb4 21. Bd2 Bc5 22. Ne4 b5 23. Qa3 Rxd2 24. Nxd2 Nc2 25. Qc3 Bxe3+ 26. Kh1 Qxc3 27. bxc3 Nxa1 0-1

[Event "Mittelrhein Verbandsliga-N 17/18"]
[Site "Nordrheinwestfalen"]
[Date "2017.10.01"]
[Round "2.1"]
[White "Keller, Karsten"]
[Black "Erdmann, Kristian"]
[Result "1-0"]
[ECO "A31"]
[WhiteElo "2130"]
[BlackElo "2000"]
[PlyCount "41"]
[EventDate "2017.09.10"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Langenfeld II"]
[BlackTeam "Leverkusen Koenigsspringer"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 c5 2. c4 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Qa5 6. Nb3 Qb4 7. e3 g6 8. a3 Qb6 9. e4 Bg7 10. Be3 Qd8 11. Be2 0-0 12. 0-0 d6 13. Rc1 Nxe4 14. Nxe4 Bxb2 15. Rc2 Bxa3 16. Qa1 f5 17. Bh6 e5 18. Qxa3 fxe4 19. Bxf8 Qxf8 20. Rd2 Ne7 21. Qxd6 1-0

[Event "Mittelrhein Verbandsliga-N 17/18"]
[Site "Nordrheinwestfalen"]
[Date "2017.09.10"]
[Round "1.1"]
[White "Wieferig, Wolfgang"]
[Black "Keller, Karsten"]
[Result "1-0"]
[ECO "A85"]
[WhiteElo "2187"]
[BlackElo "2130"]
[PlyCount "79"]
[EventDate "2017.09.10"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Eikamp Freibauer"]
[BlackTeam "Langenfeld II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 f5 2. c4 Nf6 3. Nc3 d6 4. e3 g6 5. Bd3 Nc6 6. Nge2 e5 7. d5 Ne7 8. f3 Bg7 9. h3 0-0 10. e4 c6 11. g4 Kh8 12. Be3 cxd5 13. cxd5 Bd7 14. Qb3 fxe4 15. fxe4 b5 16. 0-0-0 a6 17. Kb1 Rb8 18. Ng3 b4 19. Nce2 a5 20. Rc1 Ne8 21. Rhf1 Rxf1 22. Nxf1 Nc7 23. Bg5 Nb5 24. Qc2 Qf8 25. Nd2 Rc8 26. Rf1 Qe8 27. Nc4 Ng8 28. Qd2 Rb8 29. Nxa5 Nd4 30. Nc4 Bf8 31. Nxd4 exd4 32. Qf2 Bb5 33. Qxd4+ Bg7 34. Qe3 Bxc4 35. Bxc4 Qe5 36. Rf2 Nf6 37. Bf4 Qxe4+ 38. Qxe4 Nxe4 39. Re2 Re8 40. Bb5 1-0

[Event "Mittelrhein Verbandsliga-M 16/17"]
[Site "Nordrheinwestfalen"]
[Date "2017.04.09"]
[Round "10.1"]
[White "Keller, Karsten"]
[Black "Bussard, Christian"]
[Result "0-1"]
[ECO "A38"]
[WhiteElo "2131"]
[BlackElo "2221"]
[PlyCount "71"]
[EventDate "2016.09.11"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Langenfeld II"]
[BlackTeam "Niederkassel III"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 c5 2. c4 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. g3 Bg7 7. Bg2 Ng4 8. e3 Nge5 9. b3 Qa5 10. Bb2 Nxd4 11. exd4 Nc6 12. 0-0 Bxd4 13. b4 Qe5 14. Re1 Qg7 15. b5 Bxc3 16. Bxc3 Qxc3 17. bxc6 dxc6 18. Qd6 0-0 19. Qxe7 Qxc4 20. h4 Qd4 21. Rad1 Qg7 22. Rd8 a5 23. Qc7 Be6 24. Rxa8 Rxa8 25. Qxb7 Rf8 26. Qxc6 Bxa2 27. Qc5 a4 28. Bc6 Bb3 29. Qb4 Qf6 30. Bxa4 Bd5 31. Bd1 Ba8 32. Qc5 Rd8 33. Bg4 h5 34. Bd1 Kh7 35. Qe3 Qd6 36. Kh2 0-1

[Event "Mittelrhein Verbandsliga-M 16/17"]
[Site "Nordrheinwestfalen"]
[Date "2017.03.19"]
[Round "9.1"]
[White "Lambertz, Michael"]
[Black "Keller, Karsten"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "1931"]
[BlackElo "2131"]
[PlyCount "117"]
[EventDate "2016.09.11"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Esch SF"]
[BlackTeam "Langenfeld II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. Bc4 Nb6 5. Bb3 Nc6 6. Nf3 c4 7. Bc2 d5 8. exd6 Qxd6 9. 0-0 Bg4 10. h3 Bh5 11. b3 0-0-0 12. Na3 Qf6 13. Nxc4 Nxc4 14. bxc4 Ne5 15. Be4 Bxf3 16. Bxf3 Nxf3+ 17. Qxf3 Qxf3 18. gxf3 Rd3 19. Kg2 e6 20. Re1 Bc5 21. Rb1 Rhd8 22. Re2 R8d6 23. Rb5 b6 24. Rb3 a5 25. Rb5 a4 26. Rb1 Kc7 27. Rb5 e5 28. Rxe5 Rg6+ 29. Kf1 Rxf3 30. d4 Bd6 31. Re3 Rgf6 32. Rxf3 Rxf3 33. Be3 Rxh3 34. c5 bxc5 35. dxc5 Be5 36. Ra5 Rh4 37. Ra7+ Kc6 38. Rxf7 Rh1+ 39. Kg2 Ra1 40. Bd4 Bf6 41. Bxf6 gxf6 42. Rxf6+ Kxc5 43. Rh6 Kc4 44. Rxh7 Kxc3 45. Rc7+ Kb2 46. f4 Kxa2 47. f5 Rb1 48. Ra7 a3 49. Kf3 Rf1+ 50. Ke4 Kb2 51. Ke5 a2 52. f6 Rf3 53. Rxa2+ Kxa2 54. Ke6 Re3+ 55. Kd7 Kb3 56. f7 Rd3+ 57. Ke7 Rf3 58. f8Q Rxf8 59. Kxf8 1/2-1/2

[Event "Mittelrhein Verbandsliga-M 16/17"]
[Site "Nordrheinwestfalen"]
[Date "2017.02.19"]
[Round "8.1"]
[White "Keller, Karsten"]
[Black "Kocur, Alois"]
[Result "1-0"]
[ECO "E92"]
[WhiteElo "2131"]
[BlackElo "2146"]
[PlyCount "65"]
[EventDate "2016.09.11"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Langenfeld II"]
[BlackTeam "Hitdorf SV Springer"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 0-0 6. Be2 e5 7. Be3 exd4 8. Nxd4 Re8 9. f3 Nc6 10. Qd2 Nh5 11. Nxc6 bxc6 12. g4 Nf6 13. h4 a5 14. 0-0-0 Rb8 15. c5 d5 16. Bg5 Qe7 17. Qf4 h6 18. Bxh6 Qxc5 19. Bxg7 Kxg7 20. e5 Ng8 21. h5 Qe7 22. Bd3 Qb4 23. Qd2 Rxe5 24. hxg6 fxg6 25. Qh2 Re3 26. Bxg6 Rxc3+ 27. bxc3 Qxc3+ 28. Bc2 Qb2+ 29. Kd2 Qb4+ 30. Ke3 Qe7+ 31. Kf2 Qc5+ 32. Kg3 Rb2 33. Qh8+ 1-0

[Event "Mittelrhein Verbandsliga-M 16/17"]
[Site "Nordrheinwestfalen"]
[Date "2017.01.29"]
[Round "7.1"]
[White "Krug, Kevin"]
[Black "Keller, Karsten"]
[Result "1-0"]
[ECO "D01"]
[WhiteElo "2157"]
[BlackElo "2131"]
[PlyCount "61"]
[EventDate "2016.09.11"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Koeln Muelheim"]
[BlackTeam "Langenfeld II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. Nc3 d5 3. Bg5 Nbd7 4. Qd3 c5 5. Nf3 c4 6. Qd1 h6 7. Bxf6 Nxf6 8. e4 Nxe4 9. Nxe4 dxe4 10. Ne5 Be6 11. c3 a6 12. a4 Qc7 13. a5 0-0-0 14. Ra4 Kb8 15. Bxc4 Bxc4 16. Rxc4 Qxa5 17. Nxf7 Qd5 18. Qb3 Qxf7 19. Rc8+ Rxc8 20. Qxf7 e5 21. dxe5 Bc5 22. Qg6 Rhf8 23. Rf1 Rc6 24. Qxe4 g5 25. g3 Re8 26. f4 Rce6 27. Kd2 Bd6 28. Kc2 gxf4 29. gxf4 Bc7 30. Rg1 Kc8 31. Rg6 1-0

[Event "Mittelrhein Verbandsliga-M 16/17"]
[Site "Nordrheinwestfalen"]
[Date "2017.01.08"]
[Round "6.1"]
[White "Keller, Karsten"]
[Black "Niesel, Tobias"]
[Result "1-0"]
[ECO "B38"]
[WhiteElo "2131"]
[BlackElo "1955"]
[PlyCount "18"]
[EventDate "2016.09.11"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Langenfeld II"]
[BlackTeam "Porz SG V"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 g6 6. e4 Bg7 7. Be3 0-0 8. Be2 Ne8 9. 0-0 b6 1-0

[Event "Mittelrhein Verbandsliga-M 16/17"]
[Site "Nordrheinwestfalen"]
[Date "2016.12.18"]
[Round "5.1"]
[White "Keller, Karsten"]
[Black "Bosbach, Stefan"]
[Result "0-1"]
[ECO "A80"]
[WhiteElo "2130"]
[BlackElo "2052"]
[PlyCount "80"]
[EventDate "2016.09.11"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Langenfeld II"]
[BlackTeam "Bergische SF"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 d6 2. d4 f5 3. Nc3 Nf6 4. Bg5 c6 5. Qd3 d5 6. Ne5 g6 7. f3 Qa5 8. Qe3 Nbd7 9. Bh6 Bxh6 10. Qxh6 Nxe5 11. dxe5 Nh5 12. 0-0-0 b5 13. e3 b4 14. Nb1 Kf7 15. Bd3 Qc7 16. g4 Ng7 17. Qf4 e6 18. h4 Qe7 19. e4 Ke8 20. Nd2 a5 21. exf5 exf5 22. h5 g5 23. Qd4 h6 24. e6 Rf8 25. Qb6 Qb7 26. Qxb7 Bxb7 27. f4 Nxe6 28. fxg5 Nxg5 29. Bxf5 Bc8 30. Rhe1+ Kd8 31. Re5 Bxf5 32. gxf5 Kd7 33. Nb3 Kd6 34. Rde1 c5 35. Re6+ Nxe6 36. Rxe6+ Kc7 37. Nxc5 Rxf5 38. Rxh6 Rg8 39. b3 Rg1+ 40. Kb2 Rff1 0-1

[Event "Mittelrhein Verbandsliga-M 16/17"]
[Site "Nordrheinwestfalen"]
[Date "2016.11.27"]
[Round "4.1"]
[White "Marcks, Martin"]
[Black "Keller, Karsten"]
[Result "0-1"]
[ECO "B47"]
[WhiteElo "2023"]
[BlackElo "2130"]
[PlyCount "86"]
[EventDate "2016.09.11"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Rheinpark BSG"]
[BlackTeam "Langenfeld II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 c5 2. e4 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Nb3 a6 7. a4 b6 8. g3 Bb7 9. Bg2 Nf6 10. 0-0 Be7 11. Qe2 d6 12. Be3 0-0 13. h3 Rac8 14. Rfd1 Ne5 15. a5 b5 16. Bb6 Qb8 17. Be3 Qa8 18. f3 Nc4 19. Bc1 Rfe8 20. Kh2 Bf8 21. Nd4 Nd7 22. b3 Nce5 23. Bb2 Nc6 24. Nxc6 Rxc6 25. Rd2 d5 26. Nd1 Qc8 27. e5 Qc7 28. c3 b4 29. c4 dxc4 30. bxc4 Rc5 31. Ra4 Rxc4 32. Ne3 Rc5 33. Rxb4 Bc6 34. Rh4 Qxa5 35. Rxd7 Bxd7 36. Qd3 h6 37. Qxd7 Rd8 38. Qb7 Rb5 39. Nc4 Rxb7 40. Nxa5 Rxb2 41. Nc4 Rc2 42. Re4 Bc5 43. h4 Rd4 0-1

[Event "Mittelrhein Verbandsliga-M 16/17"]
[Site "Nordrheinwestfalen"]
[Date "2016.10.23"]
[Round "3.1"]
[White "Keller, Karsten"]
[Black "Maric, Boris"]
[Result "1-0"]
[ECO "E17"]
[WhiteElo "2130"]
[BlackElo "2042"]
[PlyCount "93"]
[EventDate "2016.09.11"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Langenfeld II"]
[BlackTeam "Gruenfeld"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 4. Bg2 e6 5. 0-0 Be7 6. Nc3 0-0 7. Re1 d5 8. cxd5 exd5 9. d4 Nbd7 10. Bf4 c5 11. Rc1 Ne4 12. dxc5 Ndxc5 13. Nd4 Nxc3 14. Rxc3 Bf6 15. b4 Ne6 16. Be3 Qd6 17. a3 Ba6 18. Rc6 Qd7 19. Nxe6 fxe6 20. Rxe6 Rad8 21. Bh3 Qb5 22. Bd4 Bc8 23. Bxf6 gxf6 24. e3 Bxe6 25. Bxe6+ Kh8 26. Qh5 Qe8 27. Qh3 Qg6 28. Bf5 Qg7 29. Rd1 Qb7 30. Rd4 Rf7 31. Be6 Rg7 32. e4 Qc7 33. exd5 Qe5 34. Qh4 Rc7 35. Rf4 Rf8 36. Qh6 Rg7 37. Rg4 f5 38. Rg5 Qe1+ 39. Kg2 Qe4+ 40. f3 Qd4 41. h4 f4 42. g4 a5 43. d6 axb4 44. axb4 Qf6 45. Qxf6 Rxf6 46. d7 Rf8 47. Rb5 1-0

[Event "Mittelrhein Verbandsliga-M 16/17"]
[Site "Nordrheinwestfalen"]
[Date "2016.10.02"]
[Round "2.1"]
[White "Orentlikher, Mikhail"]
[Black "Keller, Karsten"]
[Result "0-1"]
[ECO "A36"]
[WhiteElo "2050"]
[BlackElo "2092"]
[PlyCount "90"]
[EventDate "2016.09.11"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Koeln Ford SF"]
[BlackTeam "Langenfeld II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. e3 e5 6. Nge2 Nge7 7. 0-0 0-0 8. b3 d6 9. Bb2 Bf5 10. d3 Qd7 11. Ne4 Rad8 12. Re1 h6 13. Qd2 Bh3 14. Bh1 b6 15. N4c3 Qf5 16. a3 Bg4 17. f3 Bh3 18. Ne4 Qd7 19. d4 Bf5 20. Nf2 exd4 21. exd4 Na5 22. Qd1 d5 23. Bc3 dxc4 24. Bxa5 bxa5 25. bxc4 cxd4 26. Nd3 Nc6 27. Nef4 Rfe8 28. Qd2 Re3 29. Nc5 Qe7 30. Ne4 Rxe1+ 31. Qxe1 d3 32. Nd5 Qe5 33. Rc1 Qd4+ 34. Qf2 h5 35. Qxd4 Bxd4+ 36. Kf1 Kg7 37. Ke1 Ne5 38. Kd2 Bb2 39. Rb1 Bxa3 40. Nec3 Nxc4+ 41. Kd1 d2 42. Rb3 Bc1 43. f4 Bg4+ 44. Kc2 Rxd5 45. Bxd5 Ne3+ 0-1

[Event "Mittelrhein Verbandsliga-M 16/17"]
[Site "Nordrheinwestfalen"]
[Date "2016.09.11"]
[Round "1.1"]
[White "Keller, Karsten"]
[Black "Karimi, Farhad"]
[Result "1/2-1/2"]
[ECO "A50"]
[WhiteElo "2091"]
[BlackElo "2043"]
[PlyCount "120"]
[EventDate "2016.09.11"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Langenfeld II"]
[BlackTeam "Satranc Club"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 Nf6 2. c4 e6 3. Nc3 b6 4. e4 d6 5. d4 Be7 6. Bd3 Bb7 7. 0-0 Nbd7 8. Re1 e5 9. d5 0-0 10. b4 a5 11. bxa5 Rxa5 12. Nd2 Nc5 13. Nb3 Nxb3 14. Qxb3 Nd7 15. Qc2 Bg5 16. Bxg5 Qxg5 17. Re3 Nc5 18. Rg3 Qe7 19. Be2 Rfa8 20. Nd1 Bc8 21. Bg4 Bxg4 22. Rxg4 Ra3 23. Rg3 Qh4 24. Rxa3 Rxa3 25. Nc3 f5 26. Nb5 Ra4 27. Re1 fxe4 28. Nxc7 e3 29. Rxe3 Rxc4 30. Rc3 Rxc3 31. Qxc3 Qxf2+ 32. Kxf2 Ne4+ 33. Ke3 Nxc3 34. a3 Kf7 35. Kd3 Na4 36. Kc4 Nc5 37. Nb5 Ke7 38. Nc3 Kd7 39. g4 g5 40. Nd1 Ne4 41. Ne3 Kc7 42. Kb5 Nd2 43. Nf5 Nf3 44. h3 Nd4+ 45. Nxd4 exd4 46. Kc4 b5+ 47. Kxd4 Kb6 48. Ke4 Kc5 49. Kf5 Kxd5 50. Kxg5 Ke5 51. Kh6 Kf4 52. Kxh7 Kg5 53. h4+ Kxh4 54. Kg6 Kxg4 55. Kf6 Kf4 56. Ke6 Ke4 57. Kxd6 Kd4 58. Kc6 Kc4 59. Kb6 b4 60. axb4 Kxb4 1/2-1/2

[Event "Schwert von Luelsdorf op 27th"]
[Site "Niederkassel"]
[Date "2016.09.04"]
[Round "3"]
[White "Keller, Karsten"]
[Black "Zaitsev, Mikhail"]
[Result "0-1"]
[ECO "D06"]
[WhiteElo "2168"]
[BlackElo "2508"]
[PlyCount "130"]
[EventDate "2016.09.04"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 174 Extra"]
[Source "ChessBase"]
[SourceDate "2016.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.10"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 c5 3. c4 cxd4 4. cxd5 Nf6 5. Qxd4 Qxd5 6. Nc3 Qxd4 7. Nxd4 a6 8. g3 e5 9. Nc2 Bd7 10. Bg2 Bc6 11. 0-0 h6 12. Rd1 Bxg2 13. Kxg2 Nc6 14. Ne3 Bc5 15. Ned5 Nxd5 16. Rxd5 Bd4 17. e3 Bxc3 18. bxc3 Rd8 19. c4 Rxd5 20. cxd5 Ne7 21. e4 Kd7 22. Bb2 f6 23. Rc1 h5 24. f4 exf4 25. gxf4 f5 26. Be5 fxe4 27. Rc7+ Kd8 28. Rxb7 Rh6 29. d6 Nf5 30. Rb8+ Kd7 31. Rb7+ Ke6 32. Kf2 Rh8 33. Bxg7 Rc8 34. d7 Rd8 35. Rb6+ Kxd7 36. Be5 Rc8 37. Rxa6 Rc2+ 38. Ke1 Rxh2 39. Rf6 Ne3 40. f5 Rxa2 41. Rd6+ Ke8 42. Re6+ Kf7 43. Rf6+ Ke8 44. Re6+ Kd7 45. Rd6+ Kc8 46. f6 Ng2+ 47. Kd1 Rf2 48. Rd2 Rf1+ 49. Kc2 Ne3+ 50. Kc3 Ng4 51. Kd4 e3 52. Rc2+ Kb7 53. Rb2+ Kc6 54. Rc2+ Kd7 55. f7 Rxf7 56. Rc7+ Ke6 57. Rxf7 Kxf7 58. Bg3 Kf6 59. Ke4 Kg5 60. Kf3 Kf5 61. Be1 Ke5 62. Bg3+ Kd4 63. Bf4 Kd3 64. Bxe3 Nxe3 65. Kf4 h4 0-1

[Event "Mittelrhein Verbandsliga-M 15/16"]
[Site "Nordrheinwestfalen"]
[Date "2016.05.01"]
[Round "11.2"]
[White "Keller, Karsten"]
[Black "Negele, Michael"]
[Result "1/2-1/2"]
[ECO "D36"]
[WhiteElo "2081"]
[BlackElo "2165"]
[PlyCount "19"]
[EventDate "2015.09.06"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Langenfeld II"]
[BlackTeam "Leverkusen SC Bayer"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. c4 Nf6 2. Nf3 e6 3. d4 d5 4. Nc3 Be7 5. cxd5 exd5 6. Bg5 0-0 7. e3 c6 8. Qc2 Nbd7 9. Bd3 Re8 10. 0-0 1/2-1/2

[Event "Mittelrhein Verbandsliga-M 15/16"]
[Site "Nordrheinwestfalen"]
[Date "2016.04.10"]
[Round "10.2"]
[White "Liethen, Alexander"]
[Black "Keller, Karsten"]
[Result "1/2-1/2"]
[ECO "B34"]
[WhiteElo "1998"]
[BlackElo "2125"]
[PlyCount "22"]
[EventDate "2015.09.06"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Esch SF"]
[BlackTeam "Langenfeld II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 bxc6 6. Qd4 Nf6 7. e5 Nd5 8. e6 f6 9. exd7+ Qxd7 10. Be2 e5 11. Qe4 Qf5 1/2-1/2

[Event "Mittelrhein Verbandsliga-M 15/16"]
[Site "Nordrheinwestfalen"]
[Date "2016.03.13"]
[Round "9.2"]
[White "Keller, Karsten"]
[Black "Maric, Boris"]
[Result "0-1"]
[ECO "A17"]
[WhiteElo "2144"]
[BlackElo "2015"]
[PlyCount "128"]
[EventDate "2015.09.06"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Langenfeld II"]
[BlackTeam "Gruenfeld"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 0-0 5. a3 Bxc3 6. Qxc3 b6 7. e3 Bb7 8. Be2 d6 9. b4 Nbd7 10. Bb2 c5 11. b5 a6 12. a4 axb5 13. axb5 Rxa1+ 14. Bxa1 e5 15. d3 Qe7 16. 0-0 Ne8 17. Qa3 d5 18. cxd5 Bxd5 19. Qa7 Qd6 20. Nd2 Nc7 21. Nc4 Nxb5 22. Qa4 Qc6 23. Bg4 f5 24. e4 Bxe4 25. dxe4 fxg4 26. Nxe5 Nxe5 27. Bxe5 Nd4 28. Qxc6 Nxc6 29. Bc7 b5 30. Bd6 Re8 31. Bxc5 Rxe4 32. f3 Rc4 33. Bd6 Rd4 34. Bg3 gxf3 35. Rxf3 b4 36. Kf1 g5 37. Rf5 b3 38. Rxg5+ Kf7 39. Ke2 b2 40. Rf5+ Ke6 41. Rf1 Na5 42. Rb1 Nc4 43. Be1 Rg4 44. g3 Rg7 45. Bc3 Rd7 46. g4 Rd5 47. h4 Kd6 48. g5 Kc6 49. Bxb2 Rd2+ 50. Ke1 Rxb2 51. Rxb2 Nxb2 52. h5 Nd3+ 53. Kd2 Nc5 54. g6 h6 55. g7 Ne4+ 56. Ke3 Nf6 57. g8Q Nxg8 58. Kf4 Kd6 59. Kf5 Kd5 60. Kg6 Ke5 61. Kf7 Kf5 62. Kg7 Kg5 63. Kxg8 Kxh5 64. Kf7 Kg4 0-1

[Event "Mittelrhein Regionalliga 15/16"]
[Site "Nordrheinwestfalen"]
[Date "2016.02.21"]
[Round "7.8"]
[White "Ax, Paul"]
[Black "Keller, Karsten"]
[Result "0-1"]
[ECO "B30"]
[WhiteElo "1692"]
[BlackElo "2144"]
[PlyCount "48"]
[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 "Koeln Ford SF"]
[BlackTeam "Langenfeld"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nf3 e6 3. Nc3 Nc6 4. Bc4 a6 5. a3 Qc7 6. 0-0 Nf6 7. Re1 Be7 8. e5 Ng4 9. Qe2 f6 10. exf6 Nxf6 11. d3 0-0 12. Bg5 b5 13. Ba2 Bb7 14. Rad1 Kh8 15. d4 cxd4 16. Nxd4 Nxd4 17. Rxd4 Qc6 18. f3 Bc5 19. Be3 Bxd4 20. Bxd4 Rae8 21. Bb1 e5 22. Be3 d5 23. Bg5 e4 24. Bxf6 exf3 0-1

[Event "Mittelrhein Verbandsliga-M 15/16"]
[Site "Nordrheinwestfalen"]
[Date "2016.01.31"]
[Round "7.2"]
[White "Keller, Karsten"]
[Black "Lattermann, Stefan"]
[Result "1-0"]
[ECO "A34"]
[WhiteElo "2144"]
[BlackElo "2000"]
[PlyCount "127"]
[EventDate "2015.09.06"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Langenfeld II"]
[BlackTeam "Rheinpark BSG"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. c4 c5 2. Nc3 Nf6 3. Nf3 d5 4. cxd5 Nxd5 5. e4 Nb4 6. Bc4 Be6 7. Bxe6 Nd3+ 8. Kf1 fxe6 9. Ng5 e5 10. Qf3 Nf4 11. Nd5 e6 12. Nxf4 Qxg5 13. Nxe6 Qe7 14. Qb3 Nc6 15. d3 Qd7 16. Be3 b6 17. Qd5 Rc8 18. Nxf8 Rxf8 19. Qxd7+ Kxd7 20. Ke2 Ke6 21. Rac1 Rcd8 22. a3 Rd6 23. g3 Rfd8 24. Rc3 g6 25. h4 h5 26. f4 Nd4+ 27. Bxd4 Rxd4 28. Rd1 Rf8 29. Ke3 Rfd8 30. Rd2 R8d7 31. b3 Rd8 32. Rc4 a5 33. Ke2 R4d6 34. b4 axb4 35. axb4 cxb4 36. Rxb4 Ra8 37. Rb5 exf4 38. gxf4 Ra1 39. d4 Rh1 40. d5+ Kf7 41. e5 Rd8 42. Rxb6 Rh2+ 43. Ke3 Rxd2 44. Rb7+ Kf8 45. Kxd2 Rxd5+ 46. Ke3 Ra5 47. Rb4 Kf7 48. Ke4 Ra1 49. Rb7+ Ke6 50. Rb6+ Kf7 51. Kd5 Rd1+ 52. Kc5 Rc1+ 53. Kd6 Rd1+ 54. Kc7 Rc1+ 55. Kd7 Rd1+ 56. Rd6 Re1 57. Kd8 Re4 58. Rf6+ Kg7 59. Ke7 Ra4 60. Rf7+ Kg8 61. e6 Ra7+ 62. Kf6 Ra6 63. Rg7+ Kf8 64. Rc7 1-0

[Event "Mittelrhein Verbandsliga-M 15/16"]
[Site "Nordrheinwestfalen"]
[Date "2016.01.10"]
[Round "6.1"]
[White "Keller, Karsten"]
[Black "Wimmer, Juergen"]
[Result "0-1"]
[ECO "A41"]
[WhiteElo "2118"]
[BlackElo "2139"]
[PlyCount "130"]
[EventDate "2015.09.06"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Langenfeld II"]
[BlackTeam "Dormagen SV"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 d6 2. d4 g6 3. c4 Bg7 4. Nc3 Bg4 5. g3 Bxf3 6. exf3 e6 7. Bg2 Ne7 8. 0-0 0-0 9. f4 c6 10. Be3 d5 11. b3 Nd7 12. Rc1 Re8 13. g4 Rc8 14. cxd5 cxd5 15. Qd3 Nc6 16. Ne2 Nf6 17. Bf3 Qb6 18. f5 exf5 19. gxf5 Ne4 20. fxg6 hxg6 21. Nf4 Qd8 22. Rfd1 a6 23. Qf1 Qd6 24. Qg2 Nxd4 25. Rxc8 Rxc8 26. Nxd5 Qxd5 27. Rxd4 Bxd4 28. Bxe4 Qe5 29. Bxb7 Rc2 30. Bd5 Kg7 31. Qf3 Bxe3 32. Qxf7+ Kh6 33. Qf8+ Qg7 34. Qxg7+ Kxg7 35. fxe3 Rxa2 36. b4 Rb2 37. Bc4 Rxb4 38. Bxa6 Rb2 39. Bc4 Kf6 40. h3 Kg5 41. Kf1 Kh4 42. Be6 Kg3 43. Bg4 g5 44. Ke1 Rh2 45. Kf1 Rd2 46. Ke1 Rb2 47. Kf1 Rh2 48. Ke1 Rf2 49. Kd1 Ra2 50. Ke1 Kg2 51. e4 Ra4 52. Bf5 Kf3 53. Kd2 Rd4+ 54. Ke1 Rd3 55. Bg6 Re3+ 56. Kf1 Kf4 57. Bf5 Kg3 58. Bg6 Kxh3 59. Kf2 Ra3 60. e5 Ra5 61. e6 Re5 62. Kf3 g4+ 63. Kf4 Rxe6 64. Bh5 Rf6+ 65. Kg5 g3 0-1

[Event "Mittelrhein Verbandsliga-M 15/16"]
[Site "Nordrheinwestfalen"]
[Date "2015.12.13"]
[Round "5.2"]
[White "Keller, Karsten"]
[Black "Weiser, Hans Josef"]
[Result "0-1"]
[ECO "A18"]
[WhiteElo "2118"]
[BlackElo "1968"]
[PlyCount "44"]
[EventDate "2015.09.06"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Langenfeld II"]
[BlackTeam "Bergische SF"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. cxd5 exd5 5. e5 Nfd7 6. d4 Nb6 7. Bd3 c5 8. dxc5 Bxc5 9. Bf4 Nc6 10. a3 a5 11. h3 0-0 12. Nf3 Be6 13. Bxh7+ Kxh7 14. Ng5+ Kg8 15. Qh5 Bf5 16. 0-0-0 Bg6 17. Qg4 Nd4 18. Rde1 Qc8 19. Qg3 Qf5 20. Nge4 dxe4 21. Nxe4 Rac8 22. Kb1 Ne6 0-1

[Event "Mittelrhein Verbandsliga-M 15/16"]
[Site "Nordrheinwestfalen"]
[Date "2015.11.15"]
[Round "4.2"]
[White "Hoefer, Axel"]
[Black "Keller, Karsten"]
[Result "1/2-1/2"]
[ECO "A47"]
[WhiteElo "2017"]
[BlackElo "2150"]
[PlyCount "71"]
[EventDate "2015.09.06"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Koeln Muelheim"]
[BlackTeam "Langenfeld II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. Nf3 c5 3. c3 b6 4. Bf4 Bb7 5. e3 g6 6. Bc4 cxd4 7. cxd4 Bg7 8. Nc3 0-0 9. 0-0 Nc6 10. Qe2 Nh5 11. Bg5 Rc8 12. Rfd1 Na5 13. Bb5 h6 14. Bh4 Nf6 15. Rac1 d5 16. Ne5 Nc6 17. Nxc6 Bxc6 18. Ba6 Ra8 19. Rc2 Qd7 20. Nb5 g5 21. Bg3 Ne4 22. Rdc1 Bxb5 23. Bxb5 Qf5 24. Ba6 Nxg3 25. hxg3 e5 26. g4 Qe6 27. Rc6 Qe8 28. dxe5 Qxe5 29. b3 Rfe8 30. Qf3 Re6 31. Bb7 Rd8 32. Rc8 Rxc8 33. Rxc8+ Bf8 34. Bxd5 Rf6 35. Qd1 Kg7 36. Qd4 1/2-1/2

[Event "Mittelrhein Verbandsliga-M 15/16"]
[Site "Nordrheinwestfalen"]
[Date "2015.10.18"]
[Round "3.2"]
[White "Keller, Karsten"]
[Black "Ostenda, Eric"]
[Result "1-0"]
[ECO "D55"]
[WhiteElo "2150"]
[BlackElo "1988"]
[PlyCount "185"]
[EventDate "2015.09.06"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Langenfeld II"]
[BlackTeam "Kalker/Deutzer SG"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 Nf6 2. c4 e6 3. Nc3 d5 4. d4 Be7 5. Bg5 0-0 6. e3 b6 7. Be2 Bb7 8. Bxf6 Bxf6 9. cxd5 exd5 10. Qb3 Re8 11. 0-0 c6 12. Rad1 Na6 13. Rfe1 Nc7 14. Bd3 Ne6 15. Qc2 g6 16. b4 Rc8 17. Qb3 Re7 18. Bf1 c5 19. dxc5 Bxc3 20. Qxc3 bxc5 21. bxc5 Nxc5 22. Qa3 Ne4 23. Rc1 Rec7 24. Qa5 Rxc1 25. Qxd8+ Rxd8 26. Rxc1 Rc8 27. Rb1 Nd6 28. Nd4 Kg7 29. Nb5 Nxb5 30. Rxb5 Ba6 31. Ra5 Bxf1 32. Kxf1 Rc7 33. Rxd5 Kf6 34. Ra5 Ke6 35. g4 Rb7 36. Ke2 Rd7 37. e4 f6 38. h4 Rb7 39. Ra6+ Kf7 40. Ke3 Rd7 41. g5 fxg5 42. hxg5 Rb7 43. f4 Rc7 44. Kd4 Rd7+ 45. Kc5 Rc7+ 46. Kb5 Re7 47. Ra4 Rc7 48. Rc4 a6+ 49. Kb4 a5+ 50. Kb5 Rb7+ 51. Ka6 Rb8 52. Ra4 Ra8+ 53. Kb5 Rb8+ 54. Kxa5 Rb2 55. Ka6 Ke6 56. Ka7 Ke7 57. Ka8 Kf8 58. a3 Rb3 59. Ra7 Kg8 60. a4 Rb4 61. a5 Rb5 62. e5 Kf8 63. e6 Ke8 64. Rxh7 Rxa5+ 65. Kb7 Rf5 66. Kc6 Rxf4 67. Kd6 Rd4+ 68. Ke5 Rd1 69. Kf6 Rf1+ 70. Kxg6 Rf2 71. Rf7 Re2 72. Kg7 Rxe6 73. g6 Re1 74. Kg8 Rg1 75. g7 Rg2 76. Rf6 Rg1 77. Re6+ Kd7 78. Re4 Rh1 79. Kf7 Rf1+ 80. Kg6 Rg1+ 81. Kf6 Rf1+ 82. Kg6 Rg1+ 83. Kf7 Rf1+ 84. Kg8 Rh1 85. Re5 Kd6 86. Ra5 Ke7 87. Ra7+ Ke8 88. Rf7 Rh2 89. Rf5 Ke7 90. Re5+ Kf6 91. Re1 Ra2 92. Rh1 Kg6 93. Kh8 1-0

[Event "Mittelrhein Regionalliga 15/16"]
[Site "Nordrheinwestfalen"]
[Date "2015.09.27"]
[Round "1.8"]
[White "Engel, Johann"]
[Black "Keller, Karsten"]
[Result "0-1"]
[ECO "A85"]
[WhiteElo "1765"]
[BlackElo "2157"]
[PlyCount "60"]
[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 "Bruehl"]
[BlackTeam "Langenfeld"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 f5 2. Nf3 Nf6 3. c4 d6 4. Nc3 g6 5. e3 Bg7 6. Bd3 0-0 7. 0-0 Nc6 8. a3 e5 9. Bc2 e4 10. Nd2 Qe8 11. b4 g5 12. Bb2 Ne7 13. Bb3 c6 14. Rc1 Be6 15. Ba1 Qg6 16. b5 d5 17. bxc6 bxc6 18. cxd5 cxd5 19. Nb5 Bd7 20. Ba4 f4 21. Rc7 Nf5 22. Re1 Nh4 23. Nxa7 Bxa4 24. Qxa4 Nxg2 25. Rd1 f3 26. Qb3 Rab8 27. Rb7 Rxb7 28. Qxb7 Qf5 29. Qe7 Nf4 30. Nxf3 Qg4+ 0-1

[Event "Mittelrhein Verbandsliga-M 15/16"]
[Site "Nordrheinwestfalen"]
[Date "2015.09.06"]
[Round "1.1"]
[White "Keller, Karsten"]
[Black "Wieferig, Wolfgang"]
[Result "0-1"]
[ECO "D11"]
[WhiteElo "2157"]
[BlackElo "2218"]
[PlyCount "114"]
[EventDate "2015.09.06"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Langenfeld II"]
[BlackTeam "Eikamp Freibauer"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 d5 2. d4 c6 3. c4 dxc4 4. e3 Bg4 5. Bxc4 Bxf3 6. Qxf3 e6 7. 0-0 Nf6 8. Rd1 Nbd7 9. Nc3 Be7 10. e4 0-0 11. Bg5 Re8 12. a4 Qa5 13. e5 Nd5 14. Bxe7 Rxe7 15. Ne4 Nb4 16. Nd6 Nf8 17. Qc3 c5 18. Bd3 cxd4 19. Qxd4 Nc6 20. Nc4 Qc7 21. Qc5 Nd7 22. Qa3 Ndxe5 23. Nxe5 Qxe5 24. Bb5 Rc7 25. Rac1 g6 26. Rc5 Qf6 27. Qg3 Rd8 28. Rxd8+ Qxd8 29. h4 Qe7 30. Bxc6 Qxc5 31. Qxc7 Qxc6 32. Qb8+ Kg7 33. Qxa7 Qc1+ 34. Kh2 Qxb2 35. Qc5 e5 36. f3 Qd4 37. Qe7 b6 38. Kh3 h5 39. g4 Qf4 40. Qa3 e4 41. gxh5 exf3 42. hxg6 f2 43. Qa1+ Kxg6 44. Kg2 f1Q+ 45. Qxf1 Qxf1+ 46. Kxf1 Kh5 47. Ke2 Kxh4 48. Kd3 f5 49. Kc4 f4 50. Kb5 f3 51. Kxb6 f2 52. a5 f1Q 53. a6 Qb1+ 54. Kc7 Qc2+ 55. Kb8 Qb3+ 56. Ka8 Qd5+ 57. Kb8 Qb5+ 0-1

[Event "GER Cup"]
[Site "Wiesbaden/Niedernhausen"]
[Date "2015.06.06"]
[Round "5.9"]
[White "Keller, Karsten"]
[Black "Erlach, Olaf"]
[Result "0-1"]
[ECO "D30"]
[WhiteElo "2216"]
[BlackElo "2100"]
[PlyCount "54"]
[EventDate "2015.06.04"]
[EventType "k.o."]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. e3 c5 5. cxd5 Nxd5 6. e4 Nf6 7. e5 Nd5 8. Bd3 cxd4 9. 0-0 Nc6 10. Nbd2 Be7 11. Nb3 0-0 12. Nbxd4 Nxd4 13. Nxd4 Nb4 14. Be4 Qa5 15. Qe2 f5 16. exf6 Bxf6 17. Nb3 Qc7 18. Be3 Nd5 19. Rac1 Qf7 20. Bd4 Bd7 21. Bxf6 Qxf6 22. Nc5 Bc6 23. Nxe6 Qxe6 24. Bxh7+ Kf7 25. Be4 Nf4 26. Qf3 Qxe4 27. Rxc6 Qxc6 0-1

[Event "GER Cup"]
[Site "Wiesbaden/Niedernhausen"]
[Date "2015.06.05"]
[Round "3.6"]
[White "Keller, Karsten"]
[Black "Kearns, Christopher"]
[Result "1/2-1/2"]
[ECO "A13"]
[WhiteElo "2216"]
[BlackElo "2169"]
[PlyCount "46"]
[EventDate "2015.06.04"]
[EventType "k.o."]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 e6 3. g3 Nf6 4. Bg2 dxc4 5. Na3 Be7 6. Nxc4 0-0 7. 0-0 c5 8. b3 b5 9. Nce5 Bb7 10. Bb2 Nbd7 11. Nxd7 Nxd7 12. Qc2 Qb6 13. Rac1 Rac8 14. Qb1 Rfd8 15. Qa1 Bf6 16. d3 Bxb2 17. Qxb2 Nf6 18. Rc2 Nd5 19. Rfc1 Nb4 20. Rd2 Nd5 21. Rdc2 Nb4 22. Rd2 Nd5 23. Rdc2 Nb4 1/2-1/2

[Event "GER Cup"]
[Site "Wiesbaden/Niedernhausen"]
[Date "2015.06.05"]
[Round "4.8"]
[White "Kuersten, Ruediger"]
[Black "Keller, Karsten"]
[Result "1-0"]
[ECO "A64"]
[WhiteElo "2152"]
[BlackElo "2216"]
[PlyCount "139"]
[EventDate "2015.06.04"]
[EventType "k.o."]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. g3 g6 7. Nf3 Bg7 8. Nd2 Nbd7 9. Bg2 0-0 10. 0-0 Re8 11. Re1 a6 12. a4 Rb8 13. a5 Ne5 14. f4 Neg4 15. Nc4 h5 16. h3 h4 17. hxg4 Nxg4 18. e4 hxg3 19. Ne3 Bd4 20. Ra4 Nf2 21. Qd2 Qh4 22. Rxd4 cxd4 23. Qxd4 Bh3 24. Bf3 Bg4 25. Nxg4 Nxg4 26. Re2 Nf2 27. Bg2 Rbc8 28. Be3 Ng4 29. Bf3 Nxe3 30. Qxe3 Rc5 31. Rg2 Rxa5 32. Bd1 Kg7 33. Qd4+ Qf6 34. Qd2 b5 35. Ne2 Qd8 36. Nxg3 Rh8 37. Qc3+ f6 38. Nf5+ Kf7 39. Rxg6 Ra1 40. Rg7+ Kf8 41. Qd4 Rg8 42. Rxg8+ Kxg8 43. Kh2 Kh8 44. Qc3 Qf8 45. Qh3+ Kg8 46. Qg4+ Kh8 47. Qh5+ Kg8 48. Qg6+ Kh8 49. Nh6 Qg7 50. Qe8+ Kh7 51. Nf5 Qg6 52. Qd7+ Kh8 53. Qd8+ Kh7 54. Qc7+ Kh8 55. Qc2 a5 56. Nh4 Qg7 57. Qe2 a4 58. Qh5+ Kg8 59. Bg4 Kf8 60. Nf5 Qg8 61. Qh6+ Ke8 62. Nxd6+ Ke7 63. Nf5+ Kd7 64. Ng7+ Kc7 65. Qxf6 Kb7 66. Qe7+ Ka6 67. Qe6+ Qxe6 68. dxe6 Rc1 69. e7 Rc8 70. Bxc8+ 1-0

[Event "GER Cup"]
[Site "Wiesbaden/Niedernhausen"]
[Date "2015.06.04"]
[Round "1.7"]
[White "Bergauz, Noam"]
[Black "Keller, Karsten"]
[Result "1-0"]
[ECO "B47"]
[WhiteElo "2301"]
[BlackElo "2216"]
[PlyCount "71"]
[EventDate "2015.06.04"]
[EventType "k.o."]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. g3 a6 7. Bg2 Nf6 8. 0-0 h5 9. Nxc6 dxc6 10. Be3 Ng4 11. Bg5 Bc5 12. e5 Be7 13. Bxe7 Kxe7 14. Re1 Nxe5 15. Qd4 f6 16. Rad1 Nd7 17. Ne4 c5 18. Qc3 Rb8 19. Nd6 Nf8 20. Qf3 b5 21. Qf4 Qb6 22. Qe3 Bd7 23. Bh3 h4 24. gxh4 g6 25. Ne4 e5 26. Rd6 Qxd6 27. Nxd6 Kxd6 28. Rd1+ Kc6 29. Qf3+ Kc7 30. Qxf6 Bxh3 31. Qxe5+ Kb7 32. Qxh8 Ne6 33. Qe5 Rf8 34. Rd7+ Kc8 35. Qd6 Nd4 36. Qc7# 1-0

[Event "NRW-ch"]
[Site "Solingen"]
[Date "2014.10.17"]
[Round "7"]
[White "Chilla, Jan Eric"]
[Black "Keller, Karsten"]
[Result "1/2-1/2"]
[ECO "E37"]
[WhiteElo "2183"]
[BlackElo "2200"]
[PlyCount "89"]
[EventDate "2014.10.11"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 e6 2. c4 Nf6 3. Nc3 Bb4 4. Qc2 d5 5. a3 Bxc3+ 6. Qxc3 Ne4 7. Qc2 c5 8. cxd5 exd5 9. dxc5 Nc6 10. Nf3 0-0 11. e3 Bg4 12. Be2 Qf6 13. 0-0 Rfe8 14. b4 Bxf3 15. Bxf3 Qxa1 16. Bb2 Qa2 17. Be2 Nc3 18. Qxc3 d4 19. Qc1 Qe6 20. Bc4 Qe4 21. b5 Ne5 22. Bxd4 Nxc4 23. Qxc4 Re6 24. f3 Qg6 25. Rc1 Qg5 26. f4 Qe7 27. Qc3 Rc8 28. a4 a6 29. f5 Re4 30. f6 gxf6 31. Bxf6 Qe6 32. Bd4 axb5 33. axb5 Rg4 34. Qd2 Rg6 35. Qf2 Qd5 36. Ra1 h5 37. h3 Kh7 38. Rf1 f6 39. Qf3 Qxf3 40. Rxf3 Rcg8 41. Rf2 f5 42. Kf1 Rf8 43. Ke2 Rgg8 44. Kd3 Kg6 45. Ra2 1/2-1/2

[Event "NRW-ch"]
[Site "Solingen"]
[Date "2014.10.16"]
[Round "6"]
[White "Schmuecker, Marcus"]
[Black "Keller, Karsten"]
[Result "0-1"]
[ECO "A13"]
[WhiteElo "2251"]
[BlackElo "2200"]
[PlyCount "128"]
[EventDate "2014.10.11"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 c5 8. 0-0 b5 9. a4 b4 10. d3 Bb7 11. Nbd2 Be7 12. b3 0-0 13. Bb2 Rc8 14. Rac1 Nb8 15. Qb1 Nfd7 16. Nc4 Nb6 17. Nxb6 Qxb6 18. Ne5 Bd5 19. Bxd5 exd5 20. d4 cxd4 21. Rxc8 Rxc8 22. Rd1 Qe6 23. Bxd4 Bd6 24. Qb2 Re8 25. Nf3 f6 26. Rc1 Qxe2 27. Qxe2 Rxe2 28. Rc8+ Kf7 29. Be3 Rb2 30. Nd4 Be5 31. Kg2 Nd7 32. Rc6 Bxd4 33. Bxd4 Rxb3 34. Rxa6 Rd3 35. Be3 b3 36. Ra7 Ke6 37. Rb7 d4 38. Bf4 g5 39. Bc1 Nc5 40. Rb6+ Kd5 41. a5 Rd1 42. Ba3 Ra1 43. Bxc5 Kxc5 44. Rxb3 Kc4 45. Rb6 Rxa5 46. Kf3 f5 47. h3 h5 48. h4 Ra3+ 49. Ke2 Ra2+ 50. Kf1 gxh4 51. gxh4 d3 52. Rd6 Kc3 53. Rc6+ Kd2 54. Rc5 f4 55. Kg2 Ke1 56. Rc1+ Ke2 57. Rc5 d2 58. Re5+ Kd3 59. Rd5+ Kc2 60. Rc5+ Kb1 61. Rd5 Kc1 62. Kf3 d1Q+ 63. Rxd1+ Kxd1 64. Kxf4 Ra5 0-1

[Event "NRW-ch"]
[Site "Solingen"]
[Date "2014.10.15"]
[Round "5"]
[White "Keller, Karsten"]
[Black "Schroer, Klaus"]
[Result "1-0"]
[ECO "D61"]
[WhiteElo "2200"]
[BlackElo "2069"]
[PlyCount "67"]
[EventDate "2014.10.11"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. Nc3 d5 4. d4 c6 5. Bg5 Be7 6. e3 Nbd7 7. Qc2 0-0 8. Rd1 Re8 9. a3 dxc4 10. Bxc4 Nd5 11. Bxe7 Qxe7 12. 0-0 Nxc3 13. Qxc3 b6 14. b4 Bb7 15. e4 Rec8 16. Qd3 a5 17. b5 cxb5 18. Bxb5 Nf6 19. Rfe1 Rc7 20. Ne5 Rac8 21. d5 exd5 22. exd5 Qd6 23. Bc6 Bxc6 24. dxc6 Qxd3 25. Rxd3 Nh5 26. Red1 g6 27. Rd8+ Kg7 28. g3 Kf6 29. R8d5 Ke6 30. f4 f6 31. Rd6+ Kf5 32. Nf3 Ke4 33. Kf2 Nxf4 34. R1d4+ 1-0

[Event "NRW-ch"]
[Site "Solingen"]
[Date "2014.10.14"]
[Round "4"]
[White "Terhuven, Patrick"]
[Black "Keller, Karsten"]
[Result "1/2-1/2"]
[ECO "A14"]
[WhiteElo "2042"]
[BlackElo "2200"]
[PlyCount "31"]
[EventDate "2014.10.11"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. g3 c5 4. Bg2 Nc6 5. 0-0 d5 6. b3 Be7 7. e3 0-0 8. Bb2 dxc4 9. bxc4 Qd3 10. Qb3 Rd8 11. Rd1 Qf5 12. d4 Qh5 13. Nc3 cxd4 14. Nxd4 Na5 15. Qa4 Bd7 16. Ncb5 1/2-1/2

[Event "NRW-ch"]
[Site "Solingen"]
[Date "2014.10.13"]
[Round "3"]
[White "Keller, Karsten"]
[Black "Fuellgrabe, Thomas"]
[Result "1/2-1/2"]
[ECO "E94"]
[WhiteElo "2200"]
[BlackElo "2256"]
[PlyCount "49"]
[EventDate "2014.10.11"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 0-0 6. Be2 Na6 7. 0-0 e5 8. Be3 Ng4 9. Bg5 Qe8 10. dxe5 dxe5 11. Qc1 h6 12. Bh4 f5 13. h3 Nf6 14. Bxf6 Rxf6 15. c5 Rf7 16. exf5 gxf5 17. Re1 e4 18. Bc4 Nxc5 19. Qe3 b6 20. Bxf7+ Qxf7 21. Nd4 f4 22. Qd2 Bb7 23. Nb3 Nd3 24. Rxe4 Bxc3 25. Qxd3 1/2-1/2

[Event "NRW-ch"]
[Site "Solingen"]
[Date "2014.10.12"]
[Round "2"]
[White "Braun, Christian1111"]
[Black "Keller, Karsten"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "2371"]
[BlackElo "2200"]
[PlyCount "79"]
[EventDate "2014.10.11"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nde2 Be6 8. Qd2 Nbd7 9. f3 h5 10. Nd5 Bxd5 11. exd5 g6 12. c4 Rc8 13. Nc3 Bg7 14. Be2 h4 15. 0-0 h3 16. g3 Nh5 17. Ne4 Ndf6 18. Nf2 Nd7 19. Rfe1 f5 20. Bf1 f4 21. Bxf4 0-0 22. Bg5 Bf6 23. Be3 e4 24. f4 g5 25. Bxh3 gxf4 26. gxf4 Rxc4 27. Qe2 Nxf4 28. Bxf4 Ne5 29. Be6+ Kg7 30. Bxe5 Bxe5 31. Qg4+ Kh6 32. Qh3+ Kg7 33. Kh1 Rh8 34. Qg2+ Kf8 35. Ng4 Qg5 36. Qf1+ Qf4 37. Qxf4+ Bxf4 38. Rf1 e3 39. Nxe3 Re4 40. Ng2 1-0

[Event "NRW-ch"]
[Site "Solingen"]
[Date "2014.10.11"]
[Round "1"]
[White "Keller, Karsten"]
[Black "Lindam, Ingo"]
[Result "1-0"]
[ECO "B39"]
[WhiteElo "2200"]
[BlackElo "2070"]
[PlyCount "55"]
[EventDate "2014.10.11"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. c4 c5 2. Nf3 g6 3. d4 Bg7 4. e4 cxd4 5. Nxd4 Nc6 6. Be3 Nf6 7. Nc3 Ng4 8. Qxg4 Nxd4 9. Qd1 Ne6 10. Rc1 Qa5 11. a3 Qe5 12. Bd3 d6 13. 0-0 g5 14. b4 Bd7 15. Nd5 Bc6 16. Bd2 Qb2 17. Rb1 Qxa3 18. Rb3 Qa2 19. Nc3 Bxc3 20. Bxc3 Ba4 21. Rb2 Bxd1 22. Rxa2 Bb3 23. Ra3 Bxc4 24. Bxc4 0-0 25. Bd5 Nf4 26. Bxb7 Rab8 27. Ba6 Rb6 28. Bd2 1-0

[Event "Mittelrhein Regionalliga 1314"]
[Site "Mittelrhein"]
[Date "2014.03.09"]
[Round "8.1"]
[White "Keller, Karsten"]
[Black "Loifenfeld, Jakov"]
[Result "1/2-1/2"]
[ECO "E61"]
[WhiteElo "2080"]
[BlackElo "2408"]
[PlyCount "178"]
[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 "Bruehl"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 Nf6 2. c4 d6 3. d4 g6 4. Nc3 Bf5 5. Nh4 Bd7 6. e4 e5 7. Nf3 exd4 8. Nxd4 Bg7 9. Be2 0-0 10. 0-0 Re8 11. f3 Nc6 12. Be3 Nh5 13. Qd2 Nxd4 14. Bxd4 Nf4 15. Rfd1 Bxd4+ 16. Qxd4 Qg5 17. Bf1 Bc6 18. Nd5 Bxd5 19. cxd5 f5 20. Re1 fxe4 21. g3 Nh5 22. Rxe4 Qf6 23. Rc1 Qxf3 24. Rxe8+ Rxe8 25. Rxc7 Nf6 26. Qf2 Qxf2+ 27. Kxf2 Ng4+ 28. Kg1 Re1 29. h3 Ne5 30. Rxb7 a5 31. Ra7 Rb1 32. b3 Rb2 33. Bg2 Rxa2 34. b4 Ra1+ 35. Kh2 a4 36. b5 Rb1 37. Rxa4 Rxb5 38. Ra6 Nc4 39. Rc6 Ne3 40. Bf3 Rb2+ 41. Kg1 Nf5 42. Bg4 Nxg3 43. Rxd6 h5 44. Bf3 Kf7 45. Ra6 Rd2 46. Ra1 Nf5 47. Rd1 Nh4 48. Rf1 Kg7 49. Be4 Kh6 50. Rf8 Kg5 51. Rf2 Rd4 52. Bg2 Nf5 53. Re2 Kf4 54. Kf2 g5 55. Bf3 Ng3 56. Ra2 g4 57. hxg4 hxg4 58. Bxg4 Ne4+ 59. Ke1 Kxg4 60. d6 Kf4 61. d7 Rxd7 62. Ra3 Rd2 63. Rb3 Ra2 64. Rb8 Nc3 65. Rf8+ Ke3 66. Kf1 Ne4 67. Rf7 Ra8 68. Kg2 Rg8+ 69. Kh2 Ng5 70. Ra7 Kf3 71. Ra3+ Kf4 72. Kg2 Re8 73. Ra4+ Ne4 74. Ra3 Rb8 75. Rf3+ Kg4 76. Ra3 Rb1 77. Ra8 Rb2+ 78. Kf1 Nc3 79. Rg8+ Kf3 80. Rf8+ Ke3 81. Kg1 Ne2+ 82. Kg2 Nf4+ 83. Kg3 Rg2+ 84. Kh4 Kf3 85. Rg8 Ng6+ 86. Kh5 Kf4 87. Kh6 Kf5 88. Ra8 Rb2 89. Ra6 Rb7 1/2-1/2

[Event "Mittelrhein Regionalliga 1314"]
[Site "Mittelrhein"]
[Date "2014.02.09"]
[Round "7.1"]
[White "Van Dooren, Dirk"]
[Black "Keller, Karsten"]
[Result "1-0"]
[ECO "C00"]
[WhiteElo "2253"]
[BlackElo "2080"]
[PlyCount "61"]
[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 "Aachen DJK Aufwaerts II"]
[BlackTeam "Langenfeld II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e6 2. b3 d5 3. Bb2 Nf6 4. e5 Nfd7 5. f4 b6 6. Nf3 a5 7. Nc3 Ba6 8. f5 Bc5 9. d4 Bb4 10. Bd3 a4 11. a3 Bxc3+ 12. Bxc3 axb3 13. cxb3 Qe7 14. Bc2 0-0 15. Kf2 f6 16. Re1 fxe5 17. dxe5 c5 18. Kg1 Nc6 19. fxe6 Ndb8 20. Qxd5 Rd8 21. Qe4 g6 22. Rad1 Bb7 23. Qg4 Na6 24. Rd7 Rxd7 25. exd7 Nc7 26. e6 Nd8 27. Bxg6 Ndxe6 28. Bf5+ Kf7 29. Rxe6 Nxe6 30. Bxe6+ Qxe6 31. Qg7# 1-0

[Event "Mittelrhein Regionalliga 1314"]
[Site "Mittelrhein"]
[Date "2013.12.15"]
[Round "5.1"]
[White "Grimm, Sascha"]
[Black "Keller, Karsten"]
[Result "1-0"]
[ECO "E03"]
[WhiteElo "2306"]
[BlackElo "2097"]
[PlyCount "29"]
[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 "Langenfeld II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 c5 8. 0-0 Rb8 9. d4 cxd4 10. Bf4 Ra8 11. Bc7 Qe7 12. Rc1 Nd5 13. Ba5 Qf6 14. Qxc8+ Rxc8 15. Rxc8+ 1-0

[Event "Mittelrhein Regionalliga 1314"]
[Site "Mittelrhein"]
[Date "2013.11.24"]
[Round "4.1"]
[White "Keller, Karsten"]
[Black "Cordts, Ingo"]
[Result "1-0"]
[ECO "D23"]
[WhiteElo "2097"]
[BlackElo "2235"]
[PlyCount "109"]
[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 "Koeln Ford SF"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 Nf6 2. c4 c6 3. d4 d5 4. Qb3 dxc4 5. Qxc4 Bg4 6. Nc3 Bxf3 7. gxf3 Nbd7 8. e4 e5 9. Be3 Qa5 10. 0-0-0 exd4 11. Bxd4 Bc5 12. Bh3 Bxd4 13. Bxd7+ Nxd7 14. Qxd4 Qg5+ 15. Kb1 Ne5 16. h4 Qe7 17. f4 Nd7 18. Qxg7 0-0-0 19. Qg5 Qb4 20. Qf5 Qe7 21. Rd4 Kc7 22. Rhd1 Nb6 23. Rxd8 Rxd8 24. Rxd8 Kxd8 25. Qxh7 Nc4 26. Qh8+ Kc7 27. a3 Qd7 28. Qf6 b5 29. Ka2 a5 30. Nb1 b4 31. b3 Nxa3 32. Nxa3 bxa3 33. Qc3 Kb6 34. Kxa3 Qe7+ 35. b4 Kb7 36. Qd4 Qxh4 37. Qd7+ Kb6 38. Qd4+ Kb7 39. bxa5 Qxf4 40. Qb6+ Ka8 41. Qxc6+ Ka7 42. a6 Qb8 43. Qb7+ Qxb7 44. axb7 Kxb7 45. Kb4 Kb6 46. e5 Kc6 47. Kc4 f6 48. exf6 Kd6 49. Kd4 Ke6 50. f7 Kxf7 51. Ke5 Kg6 52. f4 Kf7 53. Kf5 Ke7 54. Kg6 Kf8 55. Kf6 1-0

[Event "Mittelrhein Regionalliga 1314"]
[Site "Mittelrhein"]
[Date "2013.11.10"]
[Round "3.1"]
[White "Luetke, Jens"]
[Black "Keller, Karsten"]
[Result "1-0"]
[ECO "B52"]
[WhiteElo "2137"]
[BlackElo "2097"]
[PlyCount "67"]
[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 II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. c4 Nc6 6. 0-0 g6 7. d4 cxd4 8. Nxd4 Bg7 9. Be3 Nf6 10. f3 0-0 11. Nc3 a6 12. Rc1 e6 13. Nde2 Qe7 14. Qd2 Rfd8 15. Bb6 Rdc8 16. Rfd1 Ne5 17. b3 Nfd7 18. Be3 Rc6 19. Bg5 Bf6 20. Bxf6 Qxf6 21. f4 Ng4 22. h3 Nh6 23. Nd4 Rc7 24. Nf3 Rc6 25. g4 g5 26. Nxg5 Kh8 27. e5 dxe5 28. Nce4 Qg6 29. Qxd7 f6 30. Qxb7 Rac8 31. Nxf6 R6c7 32. Qxc7 Rxc7 33. Rd8+ Kg7 34. Nh5+ 1-0

[Event "Mittelrhein Regionalliga 1314"]
[Site "Mittelrhein"]
[Date "2013.10.13"]
[Round "2.1"]
[White "Keller, Karsten"]
[Black "Haag, Martin"]
[Result "1-0"]
[ECO "D34"]
[WhiteElo "2098"]
[BlackElo "2260"]
[PlyCount "67"]
[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 "Bonn Beuel"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 c5 2. c4 Nf6 3. Nc3 e6 4. g3 d5 5. cxd5 exd5 6. d4 Nc6 7. Bg2 Be7 8. 0-0 0-0 9. Bg5 c4 10. Ne5 Be6 11. f4 h6 12. Bxf6 Bxf6 13. e4 Bxe5 14. dxe5 d4 15. Nd5 b5 16. Qh5 Rc8 17. g4 d3 18. Nf6+ gxf6 19. Qxh6 Nxe5 20. fxe5 Qd4+ 21. Kh1 Qxe5 22. Rf5 Qxb2 23. Rg1 Bxf5 24. gxf5 Qd4 25. Bf1+ Qxg1+ 26. Kxg1 Rfe8 27. Qxf6 Rxe4 28. Qg5+ Kf8 29. f6 d2 30. Qxd2 Rg4+ 31. Kf2 Rg6 32. Qd6+ Kg8 33. Bh3 Re8 34. Bf5 1-0

[Event "Mittelrhein Regionalliga 1314"]
[Site "Mittelrhein"]
[Date "2013.09.15"]
[Round "1.1"]
[White "Homuth, Wolfgang"]
[Black "Keller, Karsten"]
[Result "1/2-1/2"]
[ECO "B33"]
[WhiteElo "2202"]
[BlackElo "2097"]
[PlyCount "22"]
[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"]
[BlackTeam "Langenfeld II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Qa5+ 10. Bd2 Qd8 11. Bg5 Qa5+ 1/2-1/2

[Event "Mittelrhein-ch"]
[Site "Germany"]
[Date "2013.06.02"]
[Round "5"]
[White "Raupach, Gregor"]
[Black "Keller, Karsten"]
[Result "1/2-1/2"]
[ECO "E15"]
[WhiteElo "1936"]
[BlackElo "2131"]
[PlyCount "44"]
[EventDate "2013.05.29"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. Qc2 b5 6. Nbd2 bxc4 7. Nxc4 c5 8. Bg2 Nc6 9. dxc5 Bxc5 10. 0-0 Rc8 11. Qa4 Bxc4 12. Qxc4 Qb6 13. h3 0-0 14. Rb1 Nb4 15. Qb3 Ne4 16. e3 Qa6 17. Ne5 Nf6 18. a3 Nbd5 19. Qd3 Qd6 20. Nc4 Qa6 21. Ne5 Qd6 22. Nc4 Qa6 1/2-1/2

[Event "Mittelrhein-ch"]
[Site "Germany"]
[Date "2013.06.01"]
[Round "4"]
[White "Keller, Karsten"]
[Black "Fuhs, Juergen"]
[Result "1/2-1/2"]
[ECO "E19"]
[WhiteElo "2131"]
[BlackElo "1998"]
[PlyCount "28"]
[EventDate "2013.05.29"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 4. Bg2 e6 5. 0-0 Be7 6. Nc3 0-0 7. d4 Ne4 8. Qc2 f5 9. Ne5 d5 10. cxd5 exd5 11. Bf3 Nxc3 12. Qxc3 c5 13. Be3 Na6 14. Rac1 Rc8 1/2-1/2

[Event "Mittelrhein-ch"]
[Site "Germany"]
[Date "2013.05.31"]
[Round "3"]
[White "Hinz, Holger"]
[Black "Keller, Karsten"]
[Result "0-1"]
[ECO "A22"]
[WhiteElo "1906"]
[BlackElo "2131"]
[PlyCount "32"]
[EventDate "2013.05.29"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 e5 3. e4 Bc5 4. g3 d6 5. h3 Nc6 6. Bg2 0-0 7. Nge2 Nd4 8. d3 Ne8 9. 0-0 f5 10. Kh2 Nxe2 11. Qxe2 f4 12. gxf4 exf4 13. Nd5 Qh4 14. Bxf4 Rxf4 15. Nxf4 Qxf4+ 16. Kh1 Bd4 0-1

[Event "Mittelrhein-ch"]
[Site "Germany"]
[Date "2013.05.30"]
[Round "2"]
[White "Keller, Karsten"]
[Black "Brandt, Sebastian"]
[Result "0-1"]
[ECO "D07"]
[WhiteElo "2131"]
[BlackElo "2128"]
[PlyCount "78"]
[EventDate "2013.05.29"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Nc6 3. c4 Bg4 4. Nc3 e6 5. Bf4 Bxf3 6. exf3 Bd6 7. cxd5 exd5 8. Be3 Nge7 9. Qb3 0-0 10. Bd3 Nxd4 11. Bxd4 c5 12. Bxc5 Bxc5 13. 0-0 Kh8 14. Rad1 Qb6 15. Qc2 Rac8 16. Na4 Qa5 17. Nxc5 Rxc5 18. Qb1 Qc7 19. Rfe1 Ng6 20. Bxg6 hxg6 21. b4 Rb5 22. a4 Rb6 23. Rd4 Qc3 24. Rh4+ Kg8 25. Rc1 Qf6 26. Rg4 Re8 27. Re1 Rxe1+ 28. Qxe1 Re6 29. Qd1 Qb2 30. h3 Kf8 31. Qd4 Re1+ 32. Kh2 Qxd4 33. Rxd4 Ra1 34. a5 Rb1 35. Rxd5 Rxb4 36. Rc5 Ke7 37. a6 Kd6 38. Rc1 bxa6 39. Ra1 Rb6 0-1

[Event "Mittelrhein-ch"]
[Site "Germany"]
[Date "2013.05.29"]
[Round "1"]
[White "Harzheim, Lothar"]
[Black "Keller, Karsten"]
[Result "1-0"]
[ECO "B80"]
[WhiteElo "1961"]
[BlackElo "2131"]
[PlyCount "81"]
[EventDate "2013.05.29"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. f3 b5 8. Qd2 Bb7 9. 0-0-0 b4 10. Nce2 d5 11. e5 Nfd7 12. f4 Nc6 13. f5 Ncxe5 14. fxe6 Nc5 15. exf7+ Kxf7 16. Nf4 Ne4 17. Qe1 Be7 18. Bd3 Qa5 19. Kb1 Rhe8 20. Rf1 Kg8 21. Bxe4 dxe4 22. Nde6 Bf6 23. Bd4 Rxe6 24. Nxe6 Bd5 25. Rxf6 Qxa2+ 26. Kc1 Bxe6 27. Qxe4 gxf6 28. Qxa8+ Kg7 29. Qb7+ Kg6 30. Bxe5 fxe5 31. Qe4+ Kf6 32. Rf1+ Ke7 33. Qxb4+ Kd7 34. Rd1+ Ke8 35. Qb8+ Kf7 36. Rf1+ Kg6 37. Qe8+ Kg5 38. Qe7+ Kh5 39. Qxh7+ Kg5 40. Qg7+ Kh5 41. Qxe5+ 1-0

[Event "Regionalliga Mittelrhein 1213"]
[Site "Germany"]
[Date "2013.05.26"]
[Round "11.2"]
[White "Mantau, Jan"]
[Black "Keller, Karsten"]
[Result "1-0"]
[ECO "B95"]
[WhiteElo "2169"]
[BlackElo "2134"]
[PlyCount "75"]
[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 II"]
[BlackTeam "Langenfeld II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. Be2 Be7 8. Qd3 Qc7 9. Qg3 b5 10. Bf3 Bb7 11. a3 Nc6 12. Nxc6 Bxc6 13. 0-0 0-0 14. Rad1 Rfd8 15. Rd3 Ne8 16. Rfd1 Bxg5 17. Qxg5 Qb7 18. e5 h6 19. Qh4 Bxf3 20. Rxf3 Rd7 21. Rfd3 d5 22. f4 Qb6+ 23. Kh1 Qd8 24. Qh5 f5 25. Ne2 Qe7 26. Rg3 Kh8 27. Nd4 Nc7 28. Rg6 Qf7 29. Rd3 Kh7 30. Rdg3 a5 31. Nf3 Kg8 32. Qxh6 Ne8 33. Ng5 Kf8 34. Qh8+ Qg8 35. Nxe6+ Kf7 36. Ng5+ Kf8 37. Nh7+ Kf7 38. e6+ 1-0

[Event "Regionalliga Mittelrhein 1213"]
[Site "Germany"]
[Date "2013.04.14"]
[Round "9.2"]
[White "Brandt, Sebastian"]
[Black "Keller, Karsten"]
[Result "1-0"]
[ECO "C12"]
[WhiteElo "2116"]
[BlackElo "2134"]
[PlyCount "51"]
[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 "Langenfeld II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 h6 6. exf6 hxg5 7. fxg7 Rg8 8. h4 Nc6 9. h5 Rxg7 10. Qd3 Qf6 11. a3 Bxc3+ 12. bxc3 e5 13. h6 Rg8 14. dxe5 Nxe5 15. Qxd5 c6 16. Qd4 Bg4 17. Be2 Rd8 18. Qe3 Kd7 19. h7 Rge8 20. 0-0-0+ Kc7 21. Rxd8 Rxd8 22. Bxg4 Nd3+ 23. Qxd3 Rxd3 24. h8Q Qf4+ 25. Kb2 f5 26. Qh2 1-0

[Event "Regionalliga Mittelrhein 1213"]
[Site "Germany"]
[Date "2013.03.03"]
[Round "8.2"]
[White "Keller, Karsten"]
[Black "Keller, Thomas L"]
[Result "1/2-1/2"]
[ECO "E97"]
[WhiteElo "2134"]
[BlackElo "2233"]
[PlyCount "65"]
[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 "Bruehl"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 0-0 6. Be2 e5 7. 0-0 Nc6 8. d5 Ne7 9. b4 Nh5 10. g3 f5 11. Ng5 Nf6 12. Bf3 Kh8 13. Bg2 fxe4 14. Ncxe4 Nf5 15. Bb2 Nd4 16. Nxf6 Qxf6 17. f4 Bd7 18. Qd2 exf4 19. Ne4 Ne2+ 20. Qxe2 Qxb2 21. Qxb2 Bxb2 22. Rad1 fxg3 23. hxg3 Be5 24. Kh2 h5 25. Ng5 Bg4 26. Bf3 Rf5 27. Bxg4 Rxg5 28. Be6 Rxg3 29. Kh1 Kg7 30. Rf7+ Kh6 31. Rg1 Ra3 32. Rxc7 Rf8 33. Bf7 1/2-1/2

[Event "Regionalliga Mittelrhein 1213"]
[Site "Germany"]
[Date "2013.01.13"]
[Round "6.2"]
[White "Goergens, Albert"]
[Black "Keller, Karsten"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2204"]
[BlackElo "2134"]
[PlyCount "95"]
[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 "Pulheim"]
[BlackTeam "Langenfeld II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nc6 5. Nf3 Bg4 6. Be2 cxd4 7. cxd4 e6 8. Nc3 Qa5 9. 0-0 Nf6 10. h3 Bh5 11. Be3 Bd6 12. a3 0-0 13. b4 Qd8 14. Qb3 Ne7 15. Bg5 Nfd5 16. Nxd5 exd5 17. Rfe1 f6 18. Be3 Rc8 19. Nh4 Bxe2 20. Rxe2 Rc4 21. Qd3 a5 22. bxa5 Qxa5 23. Rb2 Qa6 24. Qb1 Bc7 25. Rxb7 f5 26. Nf3 f4 27. Bd2 Nf5 28. Qb5 Qxb5 29. Rxb5 Nxd4 30. Rxd5 Nxf3+ 31. gxf3 Rf6 32. Rc1 Rxc1+ 33. Bxc1 Rg6+ 34. Kf1 Rc6 35. Bd2 Rc4 36. Bb4 Bb6 37. Rd2 g5 38. Rd6 Bd4 39. Ke2 Bb2 40. Rd2 Bf6 41. Kd3 Rc6 42. Ke4 Bc3 43. Rc2 Re6+ 44. Kd5 Re5+ 45. Kd6 Ba1 46. a4 Kf7 47. a5 Rb5 48. Rc4 1-0

[Event "Regionalliga Mittelrhein 1213"]
[Site "Germany"]
[Date "2012.12.02"]
[Round "5.2"]
[White "Keller, Karsten"]
[Black "Rotstein, Jefim"]
[Result "1-0"]
[ECO "A33"]
[WhiteElo "2134"]
[BlackElo "2303"]
[PlyCount "135"]
[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 "Koeln Ford SF"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 c5 2. c4 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g3 Bc5 7. Nb3 Bb4 8. Bg2 b6 9. 0-0 Ba6 10. Nd4 Nxd4 11. Qxd4 Rc8 12. Nb5 Bxb5 13. cxb5 Bc5 14. Qa4 d5 15. Bf4 Qe7 16. a3 0-0 17. Rac1 e5 18. Bg5 e4 19. e3 Qd7 20. Bxf6 gxf6 21. b4 Be7 22. Rc6 Rcd8 23. Qd1 Qf5 24. Qd4 Bd6 25. f4 exf3 26. Rxf3 Qg5 27. Qxf6 Qxf6 28. Rxf6 Be5 29. Rf5 Rfe8 30. Bf1 Re7 31. Rf2 Kg7 32. Bd3 Rde8 33. Kg2 h6 34. a4 Bb8 35. a5 Rxe3 36. Bf1 R3e6 37. axb6 axb6 38. Rfc2 Be5 39. Bd3 Bd4 40. Rxe6 fxe6 41. Rc7+ Kf6 42. Rh7 Bc3 43. Kf3 Bd2 44. Rb7 Ke5 45. Rxb6 Bxb4 46. Rc6 Kd4 47. Ke2 e5 48. b6 e4 49. Ba6 Rf8 50. b7 e3 51. Rf6 Rxf6 52. b8Q Rf2+ 53. Kd1 Rd2+ 54. Kc1 Ba3+ 55. Kb1 Bc5 56. Qh8+ Ke4 57. Qxh6 Kf3 58. Qf4+ Kg2 59. g4 Bd4 60. Bb7 Rb2+ 61. Kc1 Rxb7 62. Qxd4 Kf2 63. Kc2 Ke2 64. Qd1+ Kf2 65. Kd3 Rb2 66. Kc3 e2 67. Qd4+ Kf1 68. Qf4+ 1-0

[Event "Regionalliga Mittelrhein 1213"]
[Site "Germany"]
[Date "2012.11.11"]
[Round "4.2"]
[White "Strocka, Bjoern"]
[Black "Keller, Karsten"]
[Result "1-0"]
[ECO "A64"]
[WhiteElo "2034"]
[BlackElo "2134"]
[PlyCount "109"]
[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 "Gruenfeld"]
[BlackTeam "Langenfeld II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. c4 e6 3. g3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Nf3 Bg7 8. Bg2 0-0 9. 0-0 Nbd7 10. a4 a6 11. Nd2 Re8 12. h3 Nh5 13. Nc4 Ne5 14. Na3 f5 15. Kh2 f4 16. gxf4 Qh4 17. e3 Bg4 18. f3 Qg3+ 19. Kg1 Bxh3 20. Qc2 Nd3 21. Ne4 Qxg2+ 22. Qxg2 Bxg2 23. Kxg2 Nxc1 24. Raxc1 Bxb2 25. Nc4 Bxc1 26. Rxc1 Rad8 27. Ncxd6 Re7 28. Rb1 c4 29. f5 Red7 30. fxg6 hxg6 31. Nxc4 Rxd5 32. Rxb7 a5 33. f4 R8d7 34. Rb6 Kf7 35. Ne5+ Rxe5 36. fxe5 Rd3 37. Rb7+ Kf8 38. Kf3 Ng7 39. Rb5 Nf5 40. Kf4 Nxe3 41. Rxa5 Nc4 42. Ra8+ Kg7 43. e6 Rd4 44. e7 g5+ 45. Kxg5 Rxe4 46. e8Q Rxe8 47. Rxe8 Kf7 48. Re2 Na5 49. Kf4 Nc6 50. Re4 Kf6 51. Ke3 Kf5 52. Re8 Kf6 53. Kd3 Ne7 54. Kc4 Kf7 55. Rd8 1-0

[Event "Regionalliga Mittelrhein 1213"]
[Site "Germany"]
[Date "2012.10.21"]
[Round "3.2"]
[White "Keller, Karsten"]
[Black "Beeker, Detlef"]
[Result "0-1"]
[ECO "A33"]
[WhiteElo "2134"]
[BlackElo "2221"]
[PlyCount "56"]
[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 "Koeln Lasker"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 c5 2. c4 Nc6 3. d4 cxd4 4. Nxd4 Qb6 5. Nb3 e6 6. Nc3 Nf6 7. g3 Ne5 8. e4 Bb4 9. Qe2 d6 10. Bd2 Bd7 11. f4 Ng6 12. 0-0-0 0-0 13. h4 h5 14. Bh3 Bc6 15. e5 dxe5 16. fxe5 Bxc3 17. Bxc3 Ne4 18. Bd4 Qa6 19. Qe3 Qxa2 20. Bg2 Nf2 21. Qxf2 Bxg2 22. Kc2 Be4+ 23. Kc3 b5 24. Ra1 b4+ 25. Kxb4 Rfb8+ 26. Bb6 Rxb6+ 27. Qxb6 axb6 28. Rxa2 Bxh1 0-1

[Event "Regionalliga Mittelrhein 1213"]
[Site "Germany"]
[Date "2012.09.30"]
[Round "2.2"]
[White "Meertens, Martin"]
[Black "Keller, Karsten"]
[Result "1-0"]
[ECO "B96"]
[WhiteElo "2113"]
[BlackElo "2134"]
[PlyCount "157"]
[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 SF II"]
[BlackTeam "Langenfeld II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 h6 8. Bh4 Be7 9. Bf2 Qc7 10. Qf3 b5 11. Bd3 Bb7 12. 0-0-0 Nbd7 13. Nb1 Nc5 14. Nd2 d5 15. e5 Nfe4 16. Kb1 Rc8 17. N2b3 Na4 18. Ne2 0-0 19. Bd4 f6 20. Qg4 f5 21. Qg6 Qd7 22. Ng3 Bd8 23. Bxe4 dxe4 24. Bb6 Qe8 25. Qxe8 Rxe8 26. Bxd8 Rexd8 27. Nd4 Kf7 28. Nf1 g5 29. fxg5 hxg5 30. Ne3 Bd5 31. h4 gxh4 32. Rxh4 Rh8 33. Rf4 Ke7 34. Ndxf5+ exf5 35. Nxd5+ Ke6 36. Ne3 Rcd8 37. Rxd8 Rxd8 38. Rxf5 Rd1+ 39. Nxd1 Kxf5 40. e6 Kxe6 41. Kc1 Ke5 42. Kd2 Kf4 43. b3 Nb6 44. a3 Nd5 45. c4 bxc4 46. bxc4 Nb6 47. Ne3 Na4 48. Nd5+ Ke5 49. g4 Kd4 50. g5 Nc5 51. g6 Ne6 52. Nc7 Ng7 53. Nxa6 Kxc4 54. Ke3 Kd5 55. Nb4+ Ke5 56. Nc6+ Kf6 57. Kxe4 Kxg6 58. a4 Ne8 59. Kd5 Kf6 60. a5 Nc7+ 61. Kc5 Ke6 62. Nb8 Ke7 63. Kc6 Kd8 64. Kb7 Ne6 65. Nc6+ Kd7 66. Ne5+ Kd6 67. Nd3 Nd8+ 68. Kb6 Ne6 69. a6 Nc7 70. a7 Na8+ 71. Kb7 Kd7 72. Nc5+ Kd8 73. Kb8 Nb6 74. Na4 Na8 75. Nc5 Nb6 76. Kb7 Na8 77. Na4 Nc7 78. Nc3 Na8 79. Nb5 1-0

[Event "NRW Class1 1213"]
[Site "Germany"]
[Date "2012.09.16"]
[Round "1.8"]
[White "Keller, Karsten"]
[Black "Wuestnienhaus, Andreas"]
[Result "1-0"]
[ECO "D37"]
[WhiteElo "2134"]
[BlackElo "1879"]
[PlyCount "47"]
[EventDate "2012.09.16"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]
[WhiteTeam "Langenfeld"]
[BlackTeam "Bocholt"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 d5 2. d4 e6 3. c4 Nf6 4. Nc3 Be7 5. Bf4 0-0 6. e3 b6 7. cxd5 Nxd5 8. Nxd5 exd5 9. Bd3 c5 10. dxc5 bxc5 11. 0-0 Be6 12. Ne5 c4 13. Bc2 Qb6 14. b3 Rd8 15. bxc4 dxc4 16. Qf3 Na6 17. Nc6 Bf6 18. Rab1 Qc5 19. Nxd8 Rxd8 20. Qb7 Qa3 21. Rfd1 Rc8 22. Bd6 Qxa2 23. Be7 Qxc2 24. Qxc8+ 1-0

[Event "Regionalliga Mittelrhein 1213"]
[Site "Germany"]
[Date "2012.09.09"]
[Round "1.2"]
[White "Keller, Karsten"]
[Black "Sarrau, Jelle"]
[Result "1-0"]
[ECO "A31"]
[WhiteElo "2134"]
[BlackElo "2286"]
[PlyCount "71"]
[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 "Wuerselen"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 Nf6 2. c4 c5 3. Nc3 b6 4. d4 cxd4 5. Nxd4 Bb7 6. f3 d6 7. e4 e6 8. Be3 a6 9. Be2 Nbd7 10. 0-0 Be7 11. Qd2 0-0 12. Rab1 Rc8 13. Rfc1 Qc7 14. Rc2 Qb8 15. Bf1 Rfe8 16. Kh1 Bd8 17. Bg1 h5 18. Nd1 Ne5 19. Nf2 Qa8 20. b4 Be7 21. a4 d5 22. exd5 exd5 23. c5 bxc5 24. bxc5 Bxc5 25. Nd3 Bf8 26. Nxe5 Rxc2 27. Qxc2 Rxe5 28. Qb2 Bc8 29. a5 Re8 30. Bd3 Bc5 31. Ne6 Bd6 32. Nxg7 Be5 33. Qd2 Kxg7 34. Qg5+ Kh8 35. Rb6 Ng8 36. Rh6+ 1-0

[Event "Goch op 23rd"]
[Site "Goch"]
[Date "2012.09.02"]
[Round "6"]
[White "Keller, Karsten"]
[Black "Schaefer, Heiko"]
[Result "1/2-1/2"]
[ECO "A90"]
[WhiteElo "2171"]
[BlackElo "2004"]
[PlyCount "43"]
[EventDate "2012.08.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. Nf3 f5 2. d4 Nf6 3. g3 e6 4. Bg2 d5 5. 0-0 Bd6 6. c4 c6 7. Nc3 Ne4 8. Bf4 Bxf4 9. gxf4 0-0 10. e3 Nd7 11. Qe2 Qe8 12. Ne5 Rf6 13. Bxe4 fxe4 14. f3 Nxe5 15. dxe5 exf3 16. Rxf3 Rg6+ 17. Rg3 b6 18. Kf2 Ba6 19. b3 Rd8 20. Rag1 Rxg3 21. hxg3 Qg6 22. Qd1 1/2-1/2

[Event "Goch op 23rd"]
[Site "Goch"]
[Date "2012.09.01"]
[Round "4"]
[White "Keller, Karsten"]
[Black "Kutzner, Stephen"]
[Result "1-0"]
[ECO "D37"]
[WhiteElo "2171"]
[BlackElo "2036"]
[PlyCount "47"]
[EventDate "2012.08.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. Nc3 Be7 5. Bf4 0-0 6. e3 c6 7. a3 Nbd7 8. h3 Re8 9. Qc2 Nf8 10. c5 b6 11. b4 a5 12. Rb1 axb4 13. axb4 b5 14. Ne5 Bb7 15. Nxb5 cxb5 16. Bxb5 Ba6 17. Bxa6 Rxa6 18. 0-0 Ng6 19. Nxg6 hxg6 20. b5 Ra8 21. b6 e5 22. Bxe5 Nd7 23. c6 Nxb6 24. c7 1-0

[Event "Goch op 23rd"]
[Site "Goch"]
[Date "2012.09.01"]
[Round "5"]
[White "Van der Valk, Niklas"]
[Black "Keller, Karsten"]
[Result "0-1"]
[ECO "A70"]
[WhiteElo "2099"]
[BlackElo "2171"]
[PlyCount "82"]
[EventDate "2012.08.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 a6 8. a4 Bg4 9. Be2 Bxf3 10. Bxf3 Nbd7 11. 0-0 Qe7 12. g3 Bg7 13. Bg2 0-0 14. Re1 Rfe8 15. Qc2 h5 16. h3 Rac8 17. Be3 Nh7 18. Rad1 g5 19. Qe2 h4 20. gxh4 gxh4 21. f4 Qf6 22. Qg4 Ndf8 23. Bf2 Ng6 24. f5 Ne5 25. Qxh4 Qxh4 26. Bxh4 c4 27. Bg3 Nf6 28. Bxe5 Rxe5 29. Rb1 Nd7 30. b4 cxb3 31. Rxb3 Nc5 32. Ra3 Rce8 33. Rb1 R5e7 34. Kh1 Kh7 35. Na2 Nxe4 36. Bxe4 Rxe4 37. Rxb7 Re2 38. Rb1 Be5 39. Nb4 Rh2+ 40. Kg1 Rg8+ 41. Kf1 Bd4 0-1

[Event "Goch op 23rd"]
[Site "Goch"]
[Date "2012.08.31"]
[Round "3"]
[White "Arnaudov, Petar G"]
[Black "Keller, Karsten"]
[Result "1-0"]
[ECO "A33"]
[WhiteElo "2489"]
[BlackElo "2171"]
[PlyCount "73"]
[EventDate "2012.08.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 e6 6. a3 Be7 7. e4 d6 8. Be2 Qc7 9. Be3 a6 10. Rc1 0-0 11. 0-0 Ne5 12. f4 Ned7 13. Bf3 Rb8 14. g4 Nb6 15. g5 Nxc4 16. Bf2 Ne8 17. Qe2 Na5 18. Nd5 Qd8 19. Nxe7+ Qxe7 20. b4 Nc6 21. Rxc6 bxc6 22. Nxc6 Qc7 23. Nxb8 Qxb8 24. Rc1 Bb7 25. Qc2 Qa8 26. Bg2 f5 27. Qb3 fxe4 28. Qxe6+ Kh8 29. Be3 Qd8 30. Rd1 d5 31. Qxe4 Nd6 32. Qd3 d4 33. Bxb7 Nxb7 34. Qxd4 Qc8 35. Qd7 Qc2 36. Rc1 Qe4 37. Bd4 1-0

[Event "Goch op 23rd"]
[Site "Goch"]
[Date "2012.08.31"]
[Round "2"]
[White "Keller, Karsten"]
[Black "Jablonowski, Christoph"]
[Result "1-0"]
[ECO "E97"]
[WhiteElo "2171"]
[BlackElo "1991"]
[PlyCount "57"]
[EventDate "2012.08.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 0-0 6. Be2 e5 7. 0-0 Nc6 8. d5 Ne7 9. b4 a5 10. Ba3 Nd7 11. bxa5 Rxa5 12. Bb4 Ra6 13. a4 b6 14. a5 Nc5 15. axb6 cxb6 16. Rxa6 Bxa6 17. Qa1 Qa8 18. Bxc5 bxc5 19. Rb1 Bb7 20. Qb2 Bc8 21. Ra1 Qb7 22. Qxb7 Bxb7 23. Nb5 Nc8 24. Rb1 Ba8 25. Nc7 Ne7 26. Rb6 Rc8 27. Nb5 f5 28. Ng5 fxe4 29. Nxd6 1-0

[Event "Goch op 23rd"]
[Site "Goch"]
[Date "2012.08.30"]
[Round "1"]
[White "Lasschuit, Rene"]
[Black "Keller, Karsten"]
[Result "0-1"]
[ECO "A46"]
[WhiteElo "1850"]
[BlackElo "2171"]
[PlyCount "148"]
[EventDate "2012.08.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. Bf4 c5 4. c3 Nc6 5. e3 Nh5 6. Bg3 Qb6 7. Qc2 h6 8. Nbd2 Nxg3 9. hxg3 d5 10. g4 Bd7 11. g5 0-0-0 12. 0-0-0 Kb8 13. Kb1 Ka8 14. Be2 cxd4 15. exd4 Bd6 16. gxh6 gxh6 17. g3 Rc8 18. Qb3 Qa5 19. Qb5 Qd8 20. Qd3 Qf6 21. Rh5 e5 22. dxe5 Nxe5 23. Nxe5 Bxe5 24. f4 Bxc3 25. bxc3 Rxc3 26. Qxd5 Qb6+ 27. Nb3 Be6 28. Qd4 Qxd4 29. Nxd4 Bc8 30. g4 f6 31. Rdh1 Rd8 32. Nc2 Rd2 33. Bd1 Rcd3 34. Kc1 Rxd1+ 35. Kb2 Rxh1 36. Rxh1 Bxg4 37. Rxh6 a5 38. Rxf6 a4 39. a3 Bd1 40. Rf8+ Ka7 41. Rc8 Rb3+ 42. Ka2 Rf3 43. Rc4 b5 44. Rc6 Rxf4 45. Nb4 Rf2+ 46. Kb1 Rf3 47. Ka2 Bb3+ 48. Kb2 Bc4 49. Rc7+ Kb6 50. Rc6+ Kb7 51. Rh6 Rb3+ 52. Kc2 Rxa3 53. Rf6 Re3 54. Kc1 Re6 55. Rf8 Kb6 56. Nc2 Rh6 57. Rb8+ Kc7 58. Rf8 Kd6 59. Ne3 Rh1+ 60. Kb2 Be6 61. Nc2 Rh2 62. Kc3 Kc6 63. Re8 Bd7 64. Rb8 Rh3+ 65. Kb2 Bf5 66. Na3 Rb3+ 67. Ka2 Be6 68. Re8 Re3+ 69. Kb2 Re2+ 70. Nc2 b4 71. Kc1 b3 72. Na3 Kc5 73. Nb1 Rc2+ 74. Kd1 Bg4+ 0-1

[Event "Mittelrhein-chT 1112"]
[Site "Germany"]
[Date "2012.05.20"]
[Round "13.2"]
[White "Keller, Karsten"]
[Black "Stanetzek, Carsten"]
[Result "1-0"]
[ECO "D11"]
[WhiteElo "2139"]
[BlackElo "2140"]
[PlyCount "35"]
[EventDate "2011.09.11"]
[EventType "team-tourn"]
[EventRounds "13"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]
[WhiteTeam "Langenfeld II"]
[BlackTeam "Niederkassel"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 d5 2. d4 Nf6 3. c4 c6 4. e3 a6 5. Bd3 Bg4 6. Nbd2 Nbd7 7. Qc2 b5 8. b3 e6 9. Bb2 Bb4 10. 0-0 Bh5 11. a3 Ba5 12. Rfc1 0-0 13. Ne5 Nxe5 14. dxe5 dxc4 15. bxc4 Bxd2 16. exf6 Bg6 17. Bxg6 fxg6 18. Rd1 1-0

[Event "Mittelrhein-chT 1112"]
[Site "Germany"]
[Date "2012.05.06"]
[Round "12.2"]
[White "Rechner, Klaus"]
[Black "Keller, Karsten"]
[Result "1/2-1/2"]
[ECO "E20"]
[WhiteElo "2011"]
[BlackElo "2139"]
[PlyCount "99"]
[EventDate "2011.09.11"]
[EventType "team-tourn"]
[EventRounds "13"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]
[WhiteTeam "Horrem"]
[BlackTeam "Langenfeld II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 e6 2. c4 Nf6 3. Nc3 Bb4 4. g3 d5 5. Bg2 0-0 6. Nf3 dxc4 7. 0-0 Nc6 8. Re1 Rb8 9. e4 b5 10. Bf4 Na5 11. Qc2 Be7 12. a3 Nh5 13. Be3 f5 14. Ne5 f4 15. gxf4 Nxf4 16. Bxf4 Rxf4 17. Rad1 c5 18. d5 Qc7 19. Nf3 b4 20. Ne2 Rf8 21. axb4 Rxb4 22. Nc3 Qb8 23. Rb1 Nb3 24. Red1 Rxf3 25. Bxf3 Nd4 26. Rxd4 cxd4 27. Na2 Rb3 28. Bd1 exd5 29. exd5 Qe5 30. Qxc4 Qe1+ 31. Qf1 Qxf1+ 32. Kxf1 Bh3+ 33. Kg1 Rb6 34. Bc2 Bf6 35. b4 Kf8 36. Bxh7 g6 37. Bxg6 Be5 38. Be4 Ke7 39. Nc1 Rh6 40. f3 Bf4 41. Kf2 Bd7 42. Nd3 Rxh2+ 43. Kg1 Bb8 44. Rb2 Rxb2 45. Nxb2 Bd6 46. Nd3 Bb5 47. Kf2 Kf6 48. f4 Bxd3 49. Bxd3 Bxf4 50. b5 1/2-1/2

[Event "NRW Class1 1112"]
[Site "Germany"]
[Date "2012.04.29"]
[Round "9.7"]
[White "Kartsev, Alexandr"]
[Black "Keller, Karsten"]
[Result "1/2-1/2"]
[ECO "A45"]
[WhiteElo "2172"]
[BlackElo "2125"]
[PlyCount "95"]
[EventDate "2011.09.18"]
[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 "Castrop Rauxel"]
[BlackTeam "Langenfeld"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. Bg5 c5 3. Bxf6 exf6 4. d5 f5 5. e3 d6 6. g3 g6 7. c3 Bg7 8. Bg2 b6 9. Ne2 Ba6 10. 0-0 h5 11. Re1 Bxe2 12. Qxe2 0-0 13. Nd2 Nd7 14. a4 Re8 15. a5 h4 16. axb6 axb6 17. Qb5 Ne5 18. Rxa8 Qxa8 19. f4 Ng4 20. Nc4 Bf8 21. h3 Nf6 22. Qxb6 Rb8 23. Qc7 Rb7 24. Qc6 Qb8 25. gxh4 Ne4 26. Re2 Rc7 27. Qa4 Ra7 28. Qd1 Qb5 29. Nd2 Ra1 30. Qxa1 Qxe2 31. Nxe4 fxe4 32. Qc1 f5 33. Bf1 Qh5 34. b4 Qxh4 35. b5 Qd8 36. Qa3 c4 37. Bxc4 Qb6 38. Qc1 Be7 39. Qd2 Qc5 40. Bf1 Bd8 41. Kf2 Bf6 42. c4 Bd8 43. Qd4 Bb6 44. Qxc5 Bxc5 45. h4 Kg7 46. Be2 Kh6 47. Bd1 Bb6 48. Be2 1/2-1/2

[Event "Mittelrhein-chT 1112"]
[Site "Germany"]
[Date "2012.04.15"]
[Round "11.2"]
[White "Keller, Karsten"]
[Black "Rieber, Ingo"]
[Result "1-0"]
[ECO "E97"]
[WhiteElo "2139"]
[BlackElo "1846"]
[PlyCount "61"]
[EventDate "2011.09.11"]
[EventType "team-tourn"]
[EventRounds "13"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]
[WhiteTeam "Langenfeld II"]
[BlackTeam "Bruehl II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 0-0 6. Be2 e5 7. 0-0 Nc6 8. d5 Ne7 9. b4 Nh5 10. g3 f5 11. Ng5 Nf6 12. Bf3 h6 13. Ne6 Bxe6 14. dxe6 fxe4 15. Nxe4 Nxe4 16. Bxe4 c6 17. b5 Rf6 18. Ba3 Rxe6 19. Qd3 Qc7 20. bxc6 bxc6 21. Rab1 Rd8 22. Rb3 Rf6 23. Rfb1 Qa5 24. Rb7 Bf8 25. Bb4 Qa6 26. Bc5 Qa5 27. Bxa7 Ra8 28. Be3 d5 29. cxd5 cxd5 30. Rxe7 Bxe7 31. Qxd5+ 1-0

[Event "Leverkusen Bayer op 10th"]
[Site "Leverkusen"]
[Date "2012.03.28"]
[Round "7"]
[White "Negele, Michael"]
[Black "Keller, Karsten"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "2134"]
[BlackElo "2127"]
[PlyCount "11"]
[EventDate "2012.01.11"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. g3 d5 2. Bg2 Nf6 3. d3 c6 4. Nd2 Bg4 5. h3 Bh5 6. f4 1/2-1/2

[Event "Leverkusen Bayer op 10th"]
[Site "Leverkusen"]
[Date "2012.03.21"]
[Round "6"]
[White "Keller, Karsten"]
[Black "Blomeyer, Peter"]
[Result "1-0"]
[ECO "A55"]
[WhiteElo "2127"]
[BlackElo "1769"]
[PlyCount "55"]
[EventDate "2012.01.11"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. Nf3 d6 2. d4 Nf6 3. c4 Nbd7 4. Nc3 e5 5. e4 Be7 6. Be2 0-0 7. 0-0 Re8 8. Re1 c6 9. Bf1 Bf8 10. Rb1 g6 11. b4 Bg7 12. d5 Qc7 13. dxc6 bxc6 14. b5 Bb7 15. Ba3 c5 16. Rb3 Nf8 17. Nd5 Qd8 18. Nxf6+ Bxf6 19. Rd3 Qa5 20. Rxd6 Qxa3 21. Rxf6 Qxa2 22. Ng5 Re7 23. Qf3 Qd2 24. Re3 Qd7 25. Rd3 Qc7 26. Qh3 Rd8 27. Rdf3 Rd2 28. Qh6 1-0

[Event "Mittelrhein-chT 1112"]
[Site "Germany"]
[Date "2012.03.18"]
[Round "10.2"]
[White "Hoefer, Axel"]
[Black "Keller, Karsten"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "2012"]
[BlackElo "2139"]
[PlyCount "82"]
[EventDate "2011.09.11"]
[EventType "team-tourn"]
[EventRounds "13"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]
[WhiteTeam "Koeln Muelheim"]
[BlackTeam "Langenfeld II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 e6 2. Nf3 c5 3. c3 d5 4. g3 Nc6 5. Bg2 Nf6 6. 0-0 h6 7. Nbd2 Be7 8. Re1 0-0 9. Nb3 Ne4 10. Nxc5 Nxc5 11. dxc5 Bxc5 12. b4 Be7 13. Bb2 Bf6 14. Qb3 Qb6 15. a3 Na5 16. Qa2 Nc4 17. e4 a5 18. Qb3 Nxb2 19. Qxb2 axb4 20. axb4 Rxa1 21. Qxa1 dxe4 22. Nd2 e3 23. Rxe3 Qxb4 24. cxb4 Bxa1 25. Ra3 Bb2 26. Ra2 Bc3 27. Nc4 e5 28. b5 Bd4 29. Re2 Bd7 30. Bxb7 Bxb5 31. Rc2 Rd8 32. Be4 g6 33. Ne3 f5 34. Bb7 Rd7 35. Bc6 Bxc6 36. Rxc6 Bxe3 37. fxe3 Kf7 38. Rc2 Kf6 39. h4 Rd6 40. Kf2 g5 41. hxg5+ Kxg5 0-1

[Event "Leverkusen Bayer op 10th"]
[Site "Leverkusen"]
[Date "2012.03.07"]
[Round "5"]
[White "Janssen, Wolfgang"]
[Black "Keller, Karsten"]
[Result "0-1"]
[ECO "C00"]
[WhiteElo "1693"]
[BlackElo "2127"]
[PlyCount "105"]
[EventDate "2012.01.11"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d3 Nf6 4. g3 d5 5. Nbd2 e6 6. Bg2 Be7 7. 0-0 b5 8. e5 Nd7 9. Re1 Qc7 10. Qe2 a5 11. Nf1 Ba6 12. c3 Nb6 13. Bf4 Rb8 14. N3d2 g5 15. Be3 Qxe5 16. Nf3 Qg7 17. d4 c4 18. Ne5 Nxe5 19. dxe5 Na4 20. Qd2 b4 21. Rac1 bxc3 22. bxc3 0-0 23. Bd4 Bc5 24. Ne3 Rb2 25. Rc2 Bxd4 26. Qxd4 Rxc2 27. Nxc2 Nb2 28. Qb6 Nd3 29. Re3 Bc8 30. Qd4 f6 31. f4 gxf4 32. gxf4 fxe5 33. fxe5 Kh8 34. Ne1 Nf4 35. Qd2 Nxg2 36. Qxg2 Qxg2+ 37. Kxg2 Bd7 38. Nf3 Rg8+ 39. Kf2 Rb8 40. Re2 a4 41. Nd4 Rb1 42. Nc2 Rb2 43. Nb4 a3 44. Na6 Ba4 45. Ke3 Bc2 46. Nb4 Bb1 47. Rd2 Kg7 48. Rd1 Bxa2 49. Ra1 Bb1 50. Rxa3 Rxh2 51. Ra7+ Kg6 52. Ra1 Rh1 53. Nc2 0-1

[Event "Mittelrhein-chT 1112"]
[Site "Germany"]
[Date "2012.02.26"]
[Round "9.2"]
[White "Keller, Karsten"]
[Black "Rohde, Ulrich"]
[Result "1-0"]
[ECO "E38"]
[WhiteElo "2139"]
[BlackElo "2177"]
[PlyCount "71"]
[EventDate "2011.09.11"]
[EventType "team-tourn"]
[EventRounds "13"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]
[WhiteTeam "Langenfeld II"]
[BlackTeam "Godesberg II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 Na6 6. a3 Bxc3+ 7. Qxc3 Nxc5 8. f3 d5 9. cxd5 b6 10. Bg5 exd5 11. e3 0-0 12. Rd1 Bb7 13. Bxf6 gxf6 14. Ne2 Rc8 15. Qd4 Re8 16. Kf2 Re5 17. Nf4 Nb3 18. Qd3 Nc1 19. Qb1 Qc7 20. Bd3 Nxd3+ 21. Qxd3 Qc2+ 22. Rd2 Qa4 23. Rhd1 Ba6 24. Qd4 Rc4 25. b3 Qxb3 26. Qd3 Qa4 27. Nxd5 Rc6 28. Ne7+ Rxe7 29. Qd8+ Kg7 30. Qxe7 Qh4+ 31. Kg1 Re6 32. Qb4 Qg5 33. e4 h5 34. Rd8 Qe3+ 35. Kh1 Rc6 36. Qf8+ 1-0

[Event "Leverkusen Bayer op 10th"]
[Site "Leverkusen"]
[Date "2012.02.22"]
[Round "4"]
[White "Keller, Karsten"]
[Black "Vranidis, Georgios"]
[Result "1/2-1/2"]
[ECO "A30"]
[WhiteElo "2127"]
[BlackElo "1813"]
[PlyCount "91"]
[EventDate "2012.01.11"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. Nf3 c5 2. c4 Nf6 3. Nc3 e6 4. g3 b6 5. Bg2 Bb7 6. 0-0 Be7 7. Re1 0-0 8. e4 d6 9. d4 cxd4 10. Nxd4 a6 11. Be3 Qc7 12. Rc1 Nbd7 13. f4 Rac8 14. f5 e5 15. Nb3 Nc5 16. Nxc5 dxc5 17. Nd5 Nxd5 18. exd5 Rcd8 19. Be4 Rd6 20. Qf3 Qd8 21. b4 cxb4 22. c5 bxc5 23. Bxc5 Re8 24. Bxb4 Rd7 25. Bxe7 Qxe7 26. Qb3 Qd6 27. Red1 Rc7 28. Rxc7 Qxc7 29. Qe3 Qd6 30. Rb1 Bc8 31. Rb6 Qc7 32. d6 Qc4 33. Rc6 Qxa2 34. Rc7 Qa1+ 35. Kg2 Qb2+ 36. Kf3 Rd8 37. Qd3 Qd4 38. Qxd4 exd4 39. Bc6 Bxf5 40. Kf4 Be6 41. Ke5 d3 42. Bf3 d2 43. Rc2 Re8 44. Rxd2 Bg4+ 45. Kf4 Bxf3 46. Kxf3 1/2-1/2

[Event "Mittelrhein-chT 1112"]
[Site "Germany"]
[Date "2012.02.05"]
[Round "8.2"]
[White "Beeker, Detlef"]
[Black "Keller, Karsten"]
[Result "1/2-1/2"]
[ECO "B23"]
[WhiteElo "2212"]
[BlackElo "2139"]
[PlyCount "54"]
[EventDate "2011.09.11"]
[EventType "team-tourn"]
[EventRounds "13"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]
[WhiteTeam "Koeln Lasker"]
[BlackTeam "Langenfeld II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nc3 Nc6 3. f4 e6 4. Nf3 d5 5. Bb5 Nge7 6. exd5 exd5 7. Qe2 f6 8. Bxc6+ bxc6 9. 0-0 Kf7 10. d3 Nf5 11. Bd2 Bd6 12. Rae1 Re8 13. Qf2 Rxe1 14. Rxe1 Qc7 15. Na4 d4 16. b3 Be6 17. Nh4 Re8 18. Nxf5 Bxf5 19. Rxe8 Kxe8 20. Qe2+ Kf8 21. g3 c4 22. dxc4 Bxc2 23. c5 Be7 24. Qc4 d3 25. Qe4 Qd7 26. Kg2 Qg4 27. Nc3 Qd7 1/2-1/2

