CohenChessClub.com

[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/oUr4goTB"] [Date "2023.12.06"] [White "Ioana"] [Black "Christopher1"] [Result "0-1"] [UTCDate "2023.12.06"] [UTCTime "21:25:43"] [WhiteElo "973"] [BlackElo "1134"] [WhiteRatingDiff "-5"] [BlackRatingDiff "+12"] [Variant "Standard"] [TimeControl "420+2"] [ECO "B00"] [Opening "Nimzowitsch Defense"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 Nc6 { B00 Nimzowitsch Defense } 2. Bc4? { (0.70 → -0.35) Mistake. d4 was best. } (2. d4 d5 3. e5 Bf5 4. c3 e6 5. Nd2 f6 6. Ngf3 fxe5) 2... d5?? { (-0.35 → 2.24) Blunder. e6 was best. } (2... e6 3. d4 d5 4. exd5 exd5 5. Be2 Nf6 6. Nf3 Bd6 7. Bg5) 3. exd5?! { (2.24 → 1.12) Inaccuracy. Bxd5 was best. } (3. Bxd5 e5 4. Bxc6+ bxc6 5. d3 Ne7 6. Ne2 a5 7. a4 Ng6 8. O-O Bc5 9. Nd2 Be6) 3... Bg4?? { (1.12 → 9.06) Blunder. Nb4 was best. } (3... Nb4 4. d4 Nxd5 5. Nf3 c6 6. O-O Ngf6 7. Bb3 b5 8. a4 e6 9. Qe2 b4 10. c4) 4. Qxg4 Qd7 5. Nf3?? { (11.90 → -8.00) Blunder. Qxd7+ was best. } (5. Qxd7+) 5... Qxg4 6. h3 Qe4+ 7. Kf1 Qe1+?? { (-11.87 → 9.46) Blunder. Qxc4+ was best. } (7... Qxc4+ 8. Kg1 Qxd5 9. d3 O-O-O 10. a3 Nf6 11. Bd2 Qf5 12. Nc3 Kb8 13. b4 a6 14. Re1) 8. Kxe1 e6 9. dxe6 Be7 10. exf7+ Kd7 11. d4 Bb4+ 12. Kf1 Nf6 13. Bg5 Ne4 14. Nbd2 Nxd2+ 15. Ke1?? { (10.07 → -6.48) Blunder. Nxd2 was best. } (15. Nxd2 h6 16. Be3 Bxd2 17. Bxd2 Raf8 18. Re1 a5 19. Be6+ Ke7 20. d5 Nd8 21. Bc3 h5) 15... Nxf3+ 16. Ke2 Nfxd4+? { (-6.98 → -3.87) Mistake. Nxg5 was best. } (16... Nxg5 17. c3) 17. Kd3 Nxc2?? { (-4.45 → 3.76) Blunder. Ne6 was best. } (17... Ne6 18. f4) 18. Rad1?? { (3.76 → -1.48) Blunder. Kxc2 was best. } (18. Kxc2 Nd4+ 19. Kb1 b5 20. Bd3 Ke6 21. Rd1 c6 22. a4 Nb3 23. Ra2 a6 24. axb5 axb5) 18... Ne1+?? { (-1.48 → 6.54) Blunder. N2d4 was best. } (18... N2d4 19. Ke4 b5 20. Bxb5 Rhe8+ 21. fxe8=R Rxe8+ 22. Kd3 Nxb5 23. Be3 Nd6 24. a3 Ba5 25. b4) 19. Ke2+ Kc8 20. Rdxe1 Re8+?? { (5.95 → Mate in 2) Checkmate is now unavoidable. Kd7 was best. } (20... Kd7 21. Rd1+) 21. Kf1?? { (Mate in 2 → Mate in 1) Lost forced checkmate sequence. fxe8=Q+ was best. } (21. fxe8=Q+ Nd8 22. Qxd8#) 21... Bxe1?? { (Mate in 1 → Mate in 2) Lost forced checkmate sequence. Rxe1# was best. } (21... Rxe1#) 22. Kg1?? { (Mate in 2 → -5.17) Lost forced checkmate sequence. fxe8=Q+ was best. } (22. fxe8=Q+ Nd8 23. Qxd8#) 22... Bxf2+?? { (-5.17 → 2.76) Blunder. Rf8 was best. } (22... Rf8) 23. Kxf2 Nb4?? { (2.57 → Mate in 1) Checkmate is now unavoidable. Rf8 was best. } (23... Rf8 24. Re1 h6 25. Be6+ Kb8 26. Bd2 a5 27. Bd5 Nb4 28. Re8+ Ka7 29. Be3+ Ka6 30. Bc4+) 24. a3? { (Mate in 1 → 9.44) Lost forced checkmate sequence. fxe8=Q# was best. } (24. fxe8=Q#) 24... Nc6? { (9.44 → Mate in 2) Checkmate is now unavoidable. Rf8 was best. } (24... Rf8 25. axb4) 25. Rd1?? { (Mate in 2 → 4.78) Lost forced checkmate sequence. fxe8=Q+ was best. } (25. fxe8=Q+ Nd8 26. Qxd8#) 25... Rf8 26. Ke3 a6?! { (4.50 → 5.95) Inaccuracy. h6 was best. } (26... h6 27. Bh4) 27. b4? { (5.95 → 3.66) Mistake. Be6+ was best. } (27. Be6+) 27... b5? { (3.66 → 7.21) Mistake. h6 was best. } (27... h6 28. Bh4) 28. Bd3?? { (7.21 → -3.53) Blunder. Bd5 was best. } (28. Bd5) 28... Rxf7 29. Bxh7 g6?? { (-3.48 → 2.78) Blunder. Kb7 was best. } (29... Kb7 30. Be4 Re8 31. Rc1 Re6 32. h4 Kb6 33. Rc5 Rf8 34. Kd3 Ne5+ 35. Kd4 Nf7 36. Bf4) 30. Bxg6?! { (2.78 → 2.05) Inaccuracy. Bg8 was best. } (30. Bg8 Re7+) 30... Rg7 31. Rd7?? { (2.27 → -6.82) Blunder. Bf5+ was best. } (31. Bf5+ Kb7 32. h4 a5 33. Rd5 Re8+ 34. Kf4 Kb6 35. Bd3 Rf7+ 36. Kg3 Re5 37. Rxe5 Nxe5) 31... Rxd7 32. Kf4 a5 33. bxa5 Rxa5 34. a4 Rxa4+ 35. Kf5 b4 36. g4 b3 37. Ke6 Ra1 38. Bf5 b2 39. h4?! { (-58.31 → Mate in 8) Checkmate is now unavoidable. Be3 was best. } (39. Be3 Rf1) 39... b1=Q?! { (Mate in 8 → -61.09) Lost forced checkmate sequence. Nd4+ was best. } (39... Nd4+ 40. Kf6 Nxf5 41. Bf4 b1=Q 42. Be5 Qe4 43. h5 Ra6+ 44. Kg5 Qxe5 45. h6 Ne3+ 46. Kh4) 40. h5?! { (-61.09 → Mate in 2) Checkmate is now unavoidable. Bxb1 was best. } (40. Bxb1 Rxb1) 40... Qb3+ 41. Kf6 Ra5 42. Bxd7+ Kxd7 43. Kg7 Ne7 44. Kf8 Qb4 45. Kf7 Qxg4 46. h6 Qxg5 47. h7 Rf5# { Black wins by checkmate. } 0-1