CohenChessClub.com

[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/PYqk0KmE"] [Date "2026.01.20"] [White "BENJAMIN4"] [Black "David3"] [Result "1-0"] [UTCDate "2026.01.20"] [UTCTime "00:27:52"] [WhiteElo "1628"] [BlackElo "1491"] [WhiteRatingDiff "+5"] [BlackRatingDiff "-9"] [WhiteTitle "🌊"] [BlackTitle "IM🔱"] [Variant "Standard"] [TimeControl "420+2"] [ECO "D00"] [Opening "Queen's Pawn Game: Mason Variation"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. d4 d5 2. Bf4 { D00 Queen's Pawn Game: Mason Variation } c6 3. e3 Bf5 4. Nf3 e6 5. Bd3 Bxd3 6. cxd3 Nf6 7. Nc3 Bd6 8. Bxd6 Qxd6 9. Qb3 O-O?? { (0.29 → 1.88) Blunder. Qc7 was best. } (9... Qc7 10. h3 O-O 11. O-O Rc8 12. Rac1 h6 13. Na4 Nbd7 14. Rc2 Nb6 15. Nc5 Nfd7) 10. Ne5?? { (1.88 → 0.00) Blunder. Qxb7 was best. } (10. Qxb7 Nbd7 11. Qa6 Rfb8 12. b3 Qb4 13. Rc1 c5 14. Qa4 Qb6 15. O-O a5 16. h3 Qa6) 10... Nbd7 11. f4 Rad8?! { (-0.24 → 0.76) Inaccuracy. c5 was best. } (11... c5 12. Qa3 Rfc8 13. O-O Qb6 14. dxc5 Nxc5 15. Rac1 Rc7 16. Ne2 Rac8 17. Nd4 Na6 18. Rxc7) 12. O-O?! { (0.76 → 0.23) Inaccuracy. Qxb7 was best. } (12. Qxb7 c5) 12... c5 13. Nb5? { (0.61 → -0.74) Mistake. Qxb7 was best. } (13. Qxb7) 13... Qb6 14. Rac1?! { (-0.57 → -1.24) Inaccuracy. Nc3 was best. } (14. Nc3 cxd4 15. Qxb6 Nxb6 16. exd4 Nc8 17. Rac1 Ne7 18. Ne2 Ne8 19. Rc3 f6 20. Nf3 Nd6) 14... a6 15. Nc3 Qxb3 16. axb3?! { (-0.89 → -1.43) Inaccuracy. axb3 was best. } (16. axb3 cxd4) 16... cxd4 17. exd4 Rc8?! { (-1.08 → -0.07) Inaccuracy. Ne8 was best. } (17... Ne8 18. g4) 18. b4?! { (-0.07 → -0.80) Inaccuracy. Na4 was best. } (18. Na4) 18... Rfe8?! { (-0.80 → 0.15) Inaccuracy. Nb8 was best. } (18... Nb8) 19. b3?? { (0.15 → -1.45) Blunder. Na4 was best. } (19. Na4 Nb8 20. Rc3 Nc6 21. Rfc1 g6 22. Nxc6 bxc6 23. Nc5 Ra8 24. Rb3 a5 25. bxa5 Rxa5) 19... b6?? { (-1.45 → 1.00) Blunder. Rc7 was best. } (19... Rc7) 20. g3? { (1.00 → -0.37) Mistake. b5 was best. } (20. b5 Nb8 21. bxa6 Nxa6 22. Nb5 Rxc1 23. Rxc1 Ra8 24. Nd6 Nb4 25. Ndxf7 Nxd3 26. Nxd3 Kxf7) 20... a5?? { (-0.37 → 1.18) Blunder. b5 was best. } (20... b5 21. Ne2) 21. bxa5 bxa5 22. Nb5 Rxc1?! { (0.18 → 0.70) Inaccuracy. Rb8 was best. } (22... Rb8 23. Nc7 Rf8 24. f5 exf5 25. Nxd5 Rxb3 26. Ne7+ Kh8 27. Nxf5 a4 28. Rc7 Nxe5 29. dxe5) 23. Rxc1 Nxe5?! { (0.82 → 1.63) Inaccuracy. Rb8 was best. } (23... Rb8 24. Nd6 Nxe5 25. dxe5 Ne8 26. Rc8 Rxc8 27. Nxc8 Kf8 28. Kf2 Nc7 29. Na7 Na6 30. Nc6) 24. dxe5 Ng4 25. Nd6 Rb8 26. Kg2?? { (1.57 → 0.00) Blunder. h3 was best. } (26. h3 Ne3 27. Kf2 Nf5 28. Nxf5 exf5 29. Ke3 h5 30. Rc5 Rxb3 31. Rxa5 Rb1 32. Rxd5 Kf8) 26... Ne3+?? { (0.00 → 1.97) Blunder. h5 was best. } (26... h5 27. Rc3 a4 28. bxa4 Rb2+ 29. Kg1 Rb1+ 30. Kg2) 27. Kf3 Nf5 28. Kg4?? { (1.94 → 0.00) Blunder. Nxf5 was best. } (28. Nxf5) 28... Nxd6 29. exd6 Kf8 30. f5 exf5+? { (0.18 → 1.48) Mistake. Rb4+ was best. } (30... Rb4+ 31. Kh5) 31. Kxf5 Ke8 32. Ke5 Kd7?? { (1.22 → 7.30) Blunder. d4 was best. } (32... d4 33. Rc7 Rxb3 34. Kxd4 Rb2 35. h3 Rb4+ 36. Kd5 Rb3 37. d4 Rxg3 38. Kc6 Kd8 39. Rd7+) 33. Kxd5?? { (7.30 → 1.06) Blunder. Rc7+ was best. } (33. Rc7+ Ke8 34. Re7+ Kf8 35. Kxd5 g5 36. Ra7 Ke8 37. Kc6 Rc8+ 38. Rc7 Ra8 39. Re7+ Kf8) 33... Rxb3 34. Rc7+ Kd8 35. Rxf7?! { (0.88 → 0.18) Inaccuracy. d4 was best. } (35. d4 Rf3) 35... Rxd3+ 36. Kc6 Rc3+ 37. Kb5 Rc2 38. Kxa5 Rxh2 39. Rxg7 Rh5+ 40. Kb6 Kc8?? { (0.60 → Mate in 17) Checkmate is now unavoidable. Rh1 was best. } (40... Rh1 41. Kc6 Rc1+ 42. Kd5 h5 43. Rg5 Rc3 44. Ke6 Re3+ 45. Kf5 Kd7 46. Kf4 Rd3 47. Rxh5) 41. Kc6 Kd8 42. Kb7?? { (Mate in 1 → 0.28) Lost forced checkmate sequence. Rg8# was best. } (42. Rg8#) 42... Ke8?? { (0.28 → 8.39) Blunder. Rh1 was best. } (42... Rh1 43. Kc6 Rc1+ 44. Kd5 Rh1 45. g4 h6 46. Ke6 Re1+ 47. Kf5 Rf1+ 48. Kg6 Rh1 49. Rh7) 43. d7+?? { (8.39 → 0.23) Blunder. Kc8 was best. } (43. Kc8) 43... Kd8 44. Kc6 Rh6+ 45. Kd5 Rh5+ 46. Ke6 Rh6+ 47. Kf5 Rg6?? { (0.23 → 56.10) Blunder. Rh1 was best. } (47... Rh1 48. Kf4 Rf1+ 49. Kg4 Rh1 50. Kf3 h6 51. Kg4 Rd1 52. Kh5 Rh1+ 53. Kg6 Rh2 54. Kf5) 48. Rxh7?? { (56.10 → 0.00) Blunder. Rxg6 was best. } (48. Rxg6 hxg6+ 49. Kxg6 Kxd7 50. Kf7 Kc6 51. g4 Kd5 52. g5 Kc5 53. g6 Kc6 54. Kf6 Kb6) 48... Rxg3 49. Ke6 Re3+ 50. Kf5 Rf3+ 51. Kg4 Rb3 52. Kf5 Rb5+ 53. Ke4 Rb4+ 54. Kd5 Rb7 55. Kc6 Rb3?? { (0.00 → Mate in 8) Checkmate is now unavoidable. Rb6+ was best. } (55... Rb6+ 56. Kc5 Rg6 57. Kd4 Rd6+ 58. Kc4 Rd1 59. Rh8+ Kxd7 60. Rf8 Ke6 61. Rf2 Rh1 62. Rb2) 56. Rh8+ Ke7 57. d8=Q+ Ke6 58. Qd7+ Ke5 59. Rh5+ Ke4 60. Qd5+ Kf4 61. Qxb3 Ke4 62. Rh4+ Ke5 63. Qd5+ Kf6 64. Rh6+ Ke7 65. Rh7+ Kf8 66. Qf7# { White wins by checkmate. } 1-0