CohenChessClub.com

[Event "MrCohenOS Arena"] [Site "https://cohenchessclub.com/aeeNYiPC"] [Date "2022.11.22"] [White "Jacob1"] [Black "Nikolai"] [Result "1-0"] [UTCDate "2022.11.22"] [UTCTime "15:03:31"] [WhiteElo "1167"] [BlackElo "1114"] [WhiteRatingDiff "+33"] [BlackRatingDiff "-5"] [Variant "Standard"] [TimeControl "420+2"] [ECO "A04"] [Opening "Zukertort Opening: Black Mustang Defense"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. Nf3 Nc6 { A04 Zukertort Opening: Black Mustang Defense } 2. d4 e6 3. e3 Be7 4. Nc3 Nf6 5. Bd3 O-O 6. e4 d6 7. Be3 Bd7?! { (0.00 → 0.81) Inaccuracy. Nb4 was best. } (7... Nb4 8. Be2 c5 9. a3 cxd4 10. Nxd4 Nc6 11. Qd2 e5 12. Nf3 Be6 13. h3 d5 14. exd5) 8. O-O g6?! { (0.75 → 1.62) Inaccuracy. e5 was best. } (8... e5 9. d5 Nb4 10. Be2 Ng4 11. Bd2 Na6 12. h3 Nf6 13. Be3 Qc8 14. Nd2 c6 15. dxc6) 9. Re1 h5? { (1.37 → 3.16) Mistake. Ng4 was best. } (9... Ng4 10. Bd2) 10. Re2?? { (3.16 → 0.91) Blunder. e5 was best. } (10. e5) 10... b6? { (0.91 → 2.55) Mistake. Ng4 was best. } (10... Ng4 11. Bd2) 11. Qf1? { (2.55 → 1.17) Mistake. e5 was best. } (11. e5 Nh7) 11... a5?! { (1.17 → 2.11) Inaccuracy. Ng4 was best. } (11... Ng4 12. Bd2) 12. Rd1?! { (2.11 → 1.01) Inaccuracy. Bh6 was best. } (12. Bh6 Re8 13. e5 Nh7 14. a3 d5 15. Re3 a4 16. Ne2 Kh8 17. h4 Na5 18. Nf4 Rg8) 12... Qc8? { (1.01 → 2.39) Mistake. Ng4 was best. } (12... Ng4 13. Bc1 e5 14. d5 Nb4 15. h3 Nf6 16. a3 Na6 17. Ree1 Nc5 18. b4 axb4 19. axb4) 13. Rdd2? { (2.39 → 0.85) Mistake. Bh6 was best. } (13. Bh6 Re8) 13... Rd8? { (0.85 → 2.05) Mistake. Ng4 was best. } (13... Ng4) 14. b3?! { (2.05 → 1.24) Inaccuracy. h3 was best. } (14. h3 Nh7 15. a3 Bf6 16. d5 Ne5 17. Nxe5 dxe5 18. Re1 Qb7 19. Bc4 Kg7 20. f4 c6) 14... Qb7 15. g3?? { (1.61 → 0.00) Blunder. h3 was best. } (15. h3) 15... Kg7?! { (0.00 → 1.00) Inaccuracy. e5 was best. } (15... e5 16. h3) 16. Bf4 e5?? { (0.50 → 2.24) Blunder. Nb4 was best. } (16... Nb4 17. a4 c5 18. d5 e5 19. Bg5 Bg4 20. Bxf6+ Bxf6 21. Re3 Qc8 22. Bc4 Na6 23. Nb5) 17. dxe5 dxe5 18. Be3?? { (1.93 → -1.51) Blunder. Nxe5 was best. } (18. Nxe5 Nxe5) 18... Bb4 19. Qa1?! { (-1.16 → -2.24) Inaccuracy. Nd5 was best. } (19. Nd5) 19... Bxc3?? { (-2.24 → 1.25) Blunder. Bg4 was best. } (19... Bg4 20. Ng5) 20. Qxc3 Bg4 21. Kg2?? { (1.53 → -1.43) Blunder. Nxe5 was best. } (21. Nxe5 Nxe5 22. Qxe5 Bxe2 23. Rxe2 a4 24. Bd4 Qc6 25. Bc3 axb3 26. axb3 Rd6 27. Bb5 Qc5) 21... Bxf3+ 22. Kxf3 Kf8?? { (-1.74 → 4.97) Blunder. Nd4+ was best. } (22... Nd4+) 23. Bh6+?? { (4.97 → 0.39) Blunder. Bb5 was best. } (23. Bb5) 23... Ke7? { (0.39 → 1.68) Mistake. Kg8 was best. } (23... Kg8 24. Kg2 Nd4 25. f3 a4 26. Rf2 axb3 27. axb3 Rd6 28. Qb2 b5 29. Bf1 b4 30. Bc4) 24. Be3?? { (1.68 → -0.45) Blunder. Bg5 was best. } (24. Bg5 Rd6) 24... Rdb8?? { (-0.45 → 7.03) Blunder. Nd4+ was best. } (24... Nd4+ 25. Bxd4 Rxd4 26. Kg2 Rad8 27. f3 c6 28. Bc4 Qd7 29. Rxd4 Qxd4 30. Qxd4 Rxd4 31. Bd3) 25. h3?! { (7.03 → 4.69) Inaccuracy. Bb5 was best. } (25. Bb5 Nxe4 26. Qxc6 Nxd2+ 27. Rxd2 Qxc6+ 28. Bxc6 Rd8 29. Bxa8 Rxa8 30. Kg2 a4 31. b4 Ke6) 25... g5?! { (4.69 → 7.30) Inaccuracy. Rd8 was best. } (25... Rd8 26. Bb5) 26. g4?? { (7.30 → 1.18) Blunder. Bb5 was best. } (26. Bb5) 26... hxg4+ 27. hxg4?? { (0.89 → -6.51) Blunder. Kg2 was best. } (27. Kg2 Rd8 28. Bxg5 Rg8 29. Bxf6+ Kxf6 30. Bc4 Nd4 31. Rxd4 exd4 32. Qxd4+ Ke7 33. h4 Rae8) 27... Nh7?? { (-6.51 → 8.45) Blunder. Qc8 was best. } (27... Qc8 28. Bc5+ Ke8 29. Kg2 Qxg4+ 30. Kf1 Qh3+ 31. Kg1 bxc5 32. Qxc5 Qe6 33. Bc4 Nd7 34. Qe3) 28. a4?! { (8.45 → 5.17) Inaccuracy. Bb5 was best. } (28. Bb5 Nd4+ 29. Bxd4 exd4 30. Qxd4 Rg8 31. Qd7+ Kf8 32. Bc6 Qc8 33. Bxa8 Qxa8 34. Qd4 Qc6) 28... Ra7?! { (5.17 → 10.35) Inaccuracy. Rg8 was best. } (28... Rg8 29. Bb5 Rg6 30. Kg3 Re6 31. Bc4 f6 32. Bxe6 Kxe6 33. Qc4+ Ke7 34. Rd7+ Kxd7 35. Qf7+) 29. b4?? { (10.35 → 0.18) Blunder. Bb5 was best. } (29. Bb5 Nd4+ 30. Bxd4 exd4 31. Qxd4 f6 32. Qd7+ Kf8 33. Qxh7 c6 34. Qh8+ Ke7 35. Qg7+ Ke8) 29... axb4 30. Qxb4+?? { (0.12 → -10.53) Blunder. Qa1 was best. } (30. Qa1 Qc8 31. Kg3 Qh8 32. Re1 Nd4 33. Rh1 c5 34. Rh5 Qg7 35. Qh1 Nf6 36. Bxg5 Rg8) 30... Ke8?? { (-10.53 → 6.68) Blunder. Nxb4 was best. } (30... Nxb4 31. Bb5 c6 32. Bc4 Qc8 33. Kg3 Rxa4 34. c3 Nc2 35. Bb3 Nxe3 36. Rxe3 Ra3 37. c4) 31. Bb5 Qc8?? { (6.86 → Mate in 3) Checkmate is now unavoidable. Ra5 was best. } (31... Ra5 32. Qc3) 32. Bxc6+ Qd7 33. Bxd7+ Kd8 34. Rd5?! { (Mate in 3 → 25.30) Lost forced checkmate sequence. Qf8+ was best. } (34. Qf8+ Nxf8 35. Bxg5+ f6 36. Bxf6#) 34... c6?! { (25.30 → Mate in 4) Checkmate is now unavoidable. c5 was best. } (34... c5 35. Bf5+ Ke7 36. Bxc5+ Kf6 37. Bd6 Kg7 38. Bxb8 Rb7 39. Bxe5+ f6 40. Bd6 Kf7 41. Bxh7) 35. Rd6?! { (Mate in 4 → 15.26) Lost forced checkmate sequence. Bxc6+ was best. } (35. Bxc6+ Rd7 36. Rxd7+ Kc8 37. Qd6 Rb7 38. Bxb7#) 35... b5?! { (15.26 → Mate in 5) Checkmate is now unavoidable. Rxd7 was best. } (35... Rxd7 36. Rxc6) 36. axb5?! { (Mate in 5 → 15.90) Lost forced checkmate sequence. Bxc6+ was best. } (36. Bxc6+ Kc8 37. Bxa7 Rb7 38. Bxb7+ Kc7 39. Ba8 Kc8 40. Qc3#) 36... cxb5?! { (15.90 → Mate in 4) Checkmate is now unavoidable. Rxd7 was best. } (36... Rxd7 37. Rxc6) 37. Bxa7 Rb7 38. Red2 Rxa7 39. Qxb5 Ke7 40. Re6+ Kd8 41. Re8+ Kc7 42. Qxe5+ Kb6 43. Bc8 Ra5 44. Qd6+ Ka7 45. Re7+ Ka8 { Black resigns. } 1-0