[Event "Krefeld op"]
[Site "Krefeld"]
[Date "2023.08.06"]
[Round "8"]
[White "Bahr, Jan Hendrik"]
[Black "Markgraf, Jonas"]
[Result "1/2-1/2"]
[ECO "D05"]
[WhiteElo "1709"]
[BlackElo "2043"]
[PlyCount "77"]
[EventDate "2023.08.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 e6 2. Nf3 c5 3. e3 Nf6 4. Bd3 d5 5. b3 Nc6 6. 0-0 cxd4 7. exd4 Be7 8. Bb2 0-0 9. Nbd2 Bd7 10. a3 Rc8 11. Ne5 Ne8 12. f4 f5 13. c4 Nxe5 14. fxe5 Bc6 15. c5 g5 16. b4 Ng7 17. b5 Be8 18. Qa4 a6 19. Qb3 axb5 20. Bxb5 Bg6 21. a4 f4 22. a5 Nf5 23. Rfc1 Ne3 24. c6 bxc6 25. Bxc6 Rb8 26. Bb7 Nc2 27. Ra4 Be8 28. a6 Bxa4 29. Qxa4 Nb4 30. Qb5 Nxa6 31. Qxa6 Qd7 32. Bc6 Qd8 33. Ba3 Bxa3 34. Qxa3 Qb6 35. Qc5 Qb2 36. Rc2 Qa1+ 37. Rc1 Qb2 38. Rc2 Qa1+ 39. Rc1 1/2-1/2

[Event "Krefeld op"]
[Site "Krefeld"]
[Date "2023.08.06"]
[Round "9"]
[White "Lu, Yunong Elias"]
[Black "Bahr, Jan Hendrik"]
[Result "0-1"]
[ECO "B11"]
[WhiteElo "1781"]
[BlackElo "1709"]
[PlyCount "86"]
[EventDate "2023.08.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 c6 2. Nc3 d5 3. Nf3 Bg4 4. h3 Bxf3 5. Qxf3 e6 6. g3 Nd7 7. Bg2 Ngf6 8. 0-0 Bb4 9. exd5 cxd5 10. Nb1 0-0 11. c3 Bd6 12. Qe2 Rc8 13. d4 Re8 14. f4 Qb6 15. Kh2 a6 16. Nd2 Qc7 17. Nf3 Ne4 18. Ne5 f5 19. Bxe4 dxe4 20. Be3 Nf6 21. Rg1 Bxe5 22. fxe5 Nd5 23. Raf1 Qc4 24. Qxc4 Rxc4 25. Bf4 b5 26. a3 Kf7 27. Ra1 Rec8 28. Rgc1 a5 29. Bd2 h6 30. h4 Kg6 31. Ra2 R4c6 32. Kg2 Kh5 33. Rh1 R8c7 34. Raa1 b4 35. axb4 axb4 36. Ra5 bxc3 37. bxc3 Nxc3 38. Bxc3 Rxc3 39. Ra6 Kg4 40. Re1 Rc2+ 41. Kg1 R7c3 42. Rxe6 Rxg3+ 43. Kh1 Kh3 0-1

[Event "Krefeld op"]
[Site "Krefeld"]
[Date "2023.08.05"]
[Round "6"]
[White "Bahr, Jan Hendrik"]
[Black "Sommerfeld, Felix Samir"]
[Result "1-0"]
[ECO "A83"]
[WhiteElo "1709"]
[BlackElo "1544"]
[PlyCount "63"]
[EventDate "2023.08.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 f5 2. Nc3 Nf6 3. Bg5 e6 4. e4 fxe4 5. Nxe4 Be7 6. Bxf6 Bxf6 7. Nf3 0-0 8. Bd3 Nc6 9. c3 b6 10. Qc2 a5 11. Nxf6+ Qxf6 12. Bxh7+ Kf7 13. Bd3 Qf4 14. h4 Bb7 15. Rh3 Ne7 16. Ne5+ Ke8 17. g3 Qf6 18. Rh2 d6 19. Ng6 Rf7 20. 0-0-0 Bf3 21. Re1 Bh5 22. Nf4 Qh6 23. Rxe6 Rf6 24. Rxf6 gxf6 25. Kb1 Kf7 26. Qb3+ Kg7 27. Rh1 Ng6 28. Nxh5+ Qxh5 29. Re1 Qf3 30. Qc2 Nh8 31. Be4 Qg4 32. Bxa8 1-0

[Event "Krefeld op"]
[Site "Krefeld"]
[Date "2023.08.05"]
[Round "7"]
[White "De Vries, Leon"]
[Black "Bahr, Jan Hendrik"]
[Result "0-1"]
[ECO "A11"]
[WhiteElo "1926"]
[BlackElo "1709"]
[PlyCount "59"]
[EventDate "2023.08.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 d5 3. Bg2 c6 4. 0-0 Bf5 5. c4 e6 6. cxd5 exd5 7. d3 Be7 8. Qb3 Qb6 9. Qc2 h6 10. Nc3 Bh7 11. e4 dxe4 12. dxe4 0-0 13. Be3 Qc7 14. Rac1 Nbd7 15. Nd4 Rfe8 16. Qe2 Bf8 17. f3 a6 18. Rfd1 Rad8 19. Bh3 Qb8 20. Nf5 Nc5 21. Bf4 Qa7 22. Qf2 Bxf5 23. Bxf5 Qa8 24. Qe3 Ne6 25. Bxe6 Rxe6 26. Qb6 Nd7 27. Qc7 Bc5+ 28. Kg2 Bb6 29. Nd5 Bxc7 30. Nxc7 0-1

[Event "Krefeld op"]
[Site "Krefeld"]
[Date "2023.08.04"]
[Round "5"]
[White "Krosenbrink, Marcel"]
[Black "Bahr, Jan Hendrik"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "1880"]
[BlackElo "1709"]
[PlyCount "131"]
[EventDate "2023.08.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 a6 3. f4 Nc6 4. Nf3 e6 5. a4 Qc7 6. Bc4 d6 7. d3 Nf6 8. 0-0 Be7 9. Qe1 Nb4 10. Bb3 0-0 11. Qg3 Kh8 12. e5 Nd7 13. exd6 Bxd6 14. Ne4 Be7 15. Bd2 Nd5 16. f5 Qxg3 17. Nxg3 Bf6 18. fxe6 fxe6 19. c3 Nc7 20. Rae1 Nb6 21. Ne4 Nbd5 22. Nxc5 b6 23. Ne4 Bd7 24. c4 Ne7 25. Bb4 Rfe8 26. Nxf6 gxf6 27. d4 Ng6 28. Bc3 Kg7 29. h4 b5 30. axb5 axb5 31. h5 bxc4 32. Bxc4 Ne7 33. Nh4 Ned5 34. Bd2 Rab8 35. b3 Nb5 36. Nf3 Nd6 37. Rb1 Bb5 38. Rfe1 Kf7 39. Bxd5 exd5 40. Bf4 Rb6 41. Bxd6 Rxd6 42. Nh4 Rb6 43. Rxe8 Bxe8 44. Nf5 Ba4 45. Re1 Rxb3 46. Re7+ Kg8 47. Rg7+ Kf8 48. Rxh7 Rd3 49. Ra7 Rd1+ 50. Kf2 Bc2 51. Ne3 Rxd4 52. h6 Bb1 53. g4 Rd2+ 54. Kg3 Ra2 55. h7 Rxa7 56. h8Q+ Kf7 57. Qh5+ Kg7 58. Qxd5 Ra3 59. Qd4 Rd3 60. Qf4 Kg6 61. Kf2 Rb3 62. Nd5 Rb2+ 63. Ke1 f5 64. gxf5+ Kf7 65. Qc7+ Kf8 66. Qe7+ 1-0

[Event "Krefeld op"]
[Site "Krefeld"]
[Date "2023.08.03"]
[Round "3"]
[White "Bahr, Jan Hendrik"]
[Black "Heinzel, Thomas"]
[Result "1-0"]
[ECO "D36"]
[WhiteElo "1709"]
[BlackElo "1735"]
[PlyCount "105"]
[EventDate "2023.08.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. cxd5 exd5 4. Nc3 Nf6 5. Bg5 c6 6. Qc2 Be7 7. e3 Nbd7 8. Bd3 h6 9. Bh4 Nh5 10. Bxe7 Qxe7 11. Nge2 Nb6 12. 0-0 0-0 13. Rae1 Bd7 14. Nc1 Qg5 15. Kh1 Rae8 16. a4 Qh4 17. Be2 f5 18. Nd3 f4 19. Bxh5 Qxh5 20. Nxf4 Qg5 21. b3 Bf5 22. Qd2 Rf7 23. Nd3 Nd7 24. f4 Qg6 25. Ne5 Nxe5 26. fxe5 Ref8 27. Rf4 Qe6 28. Ref1 g5 29. R4f2 Qg6 30. Kg1 h5 31. b4 a6 32. Qa2 h4 33. Qd2 g4 34. Rf4 Qg5 35. Qe2 Kh8 36. Qd2 Qg6 37. Qb2 Bd3 38. Rxf7 Rxf7 39. Rxf7 Qxf7 40. Qf2 Kg7 41. Qxf7+ Kxf7 42. Kf2 Ke6 43. a5 Bc2 44. g3 h3 45. Ke2 Kd7 46. Kd2 Bf5 47. e4 dxe4 48. Ke3 Ke6 49. Nxe4 Kd5 50. Nd6 Bd7 51. Nxb7 Kc4 52. Nc5 Be8 53. Nxa6 1-0

[Event "Krefeld op"]
[Site "Krefeld"]
[Date "2023.08.03"]
[Round "2"]
[White "Wiedenbruch, Silke"]
[Black "Bahr, Jan Hendrik"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "1201"]
[BlackElo "1709"]
[PlyCount "90"]
[EventDate "2023.08.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 Nf6 4. e5 Nd5 5. cxd4 d6 6. Bc4 Nb6 7. Bd3 dxe5 8. dxe5 Nc6 9. Nf3 Bg4 10. Bf4 e6 11. 0-0 Nd5 12. Bg3 Qc7 13. Bb5 Be7 14. Nbd2 0-0 15. a3 Rfd8 16. Qe2 Nd4 17. Qc4 Qxc4 18. Bxc4 Nb6 19. Ba2 Rac8 20. Nxd4 Rxd4 21. Nb3 Rd7 22. h3 Bh5 23. Rac1 Rcd8 24. Na5 Na4 25. Nc4 Be2 26. Rfe1 Bxc4 27. Bxc4 Nxb2 28. Be2 Bxa3 29. Rb1 b6 30. Kf1 Nd3 31. Red1 Be7 32. Bxd3 Rxd3 33. Rxd3 Rxd3 34. Rc1 Bc5 35. Ke2 Rd5 36. f4 h5 37. Rc3 Kh7 38. Kf3 a5 39. Bh4 a4 40. g4 hxg4+ 41. hxg4 Rd2 42. Rc4 a3 43. Ra4 b5 44. Ra6 a2 45. Be1 Rc2 0-1

[Event "Krefeld op"]
[Site "Krefeld"]
[Date "2023.08.02"]
[Round "1"]
[White "Bahr, Jan Hendrik"]
[Black "Sabirov, Rafael"]
[Result "0-1"]
[ECO "A57"]
[WhiteElo "1709"]
[BlackElo "2119"]
[PlyCount "102"]
[EventDate "2023.08.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. Qc2 b4 5. e4 d6 6. f4 g6 7. Nf3 Bg7 8. Bd3 0-0 9. 0-0 a5 10. a4 e6 11. Nbd2 Re8 12. Rb1 Qb6 13. dxe6 Rxe6 14. b3 Bb7 15. Bb2 Nbd7 16. Rbe1 Rae8 17. Re2 Nh5 18. Ng5 R6e7 19. Bxg7 Kxg7 20. Ref2 h6 21. Nh3 Nhf6 22. Re2 Qa7 23. Rfe1 Qa8 24. Nf2 Kg8 25. g4 h5 26. g5 Nh7 27. h4 Nhf8 28. Kh2 Ne6 29. Nf3 Nxf4 30. Re3 Ne5 31. Nxe5 Rxe5 32. Bf1 Ne6 33. Bg2 Nd4 34. Qb1 R5e7 35. Nh3 d5 36. e5 dxc4 37. e6 Rxe6 38. Rxe6 Rxe6 39. Rxe6 Nxe6 40. Bxb7 Qxb7 41. bxc4 Qc7+ 42. Kg2 Qc6+ 43. Kf2 Qxa4 44. Qe4 Qd7 45. Nf4 Qd4+ 46. Qxd4 Nxd4 47. Nd3 Ne6 48. Ke3 a4 49. Kd2 Kg7 50. Kc2 f6 51. gxf6+ Kxf6 0-1

