CohenChessClub.com

[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/4PWNttb5"] [Date "2026.06.19"] [White "Mark2"] [Black "Eli4"] [Result "1-0"] [UTCDate "2026.06.19"] [UTCTime "23:05:19"] [WhiteElo "1205"] [BlackElo "761"] [WhiteRatingDiff "+2"] [BlackRatingDiff "-2"] [WhiteTitle "࿄"] [Variant "Standard"] [TimeControl "420+2"] [ECO "C41"] [Opening "Philidor Defense"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 e5 2. Nf3 d6 { C41 Philidor Defense } 3. Nc3 Nf6 4. g3 Nc6 5. Bg2 Be6 6. O-O Be7 7. Nb5?? { (0.55 → -1.95) Blunder. a4 was best. } (7. a4 Qd7 8. d4 Bg4 9. d5 Nd4 10. Qd3 Bxf3 11. Bxf3 Nxf3+ 12. Qxf3 h5 13. h4 c6) 7... O-O?? { (-1.95 → -0.01) Blunder. Bc4 was best. } (7... Bc4 8. Nc3 Bxf1 9. Qxf1 O-O 10. Qb5 Rb8 11. Qc4 Na5 12. Qe2 c5 13. Nd5 Nxd5 14. exd5) 8. Ng5?? { (-0.01 → -3.16) Blunder. Re1 was best. } (8. Re1 h6 9. d4 a6 10. Nc3 Bg4 11. d5 Nd4 12. Be3 Nxf3+ 13. Bxf3 Qd7 14. a4 c6) 8... h6?? { (-3.16 → 0.70) Blunder. Bc4 was best. } (8... Bc4 9. Nc3 Bxf1 10. Kxf1 Nd4 11. Nf3 Nxf3 12. Bxf3 c6 13. d4 exd4 14. Qxd4 Nd7 15. Kg2) 9. Nf3?? { (0.70 → -2.87) Blunder. Nxe6 was best. } (9. Nxe6 fxe6 10. c4 a6 11. Nc3 Nd7 12. d3 Bg5 13. f4 exf4 14. gxf4 Bf6 15. Bh3 Nc5) 9... d5?? { (-2.87 → -0.54) Blunder. Nxe4 was best. } (9... Nxe4 10. d3 Nf6 11. c4 Qd7 12. b3 Bg4 13. Bb2 a6 14. Nc3 Nd4 15. Nd5 Nxd5 16. Bxd4) 10. exd5 Bxd5 11. c4?? { (-0.52 → -7.42) Blunder. Nc3 was best. } (11. Nc3 Be6 12. Re1 Bc5 13. d3 Re8 14. Be3 Bb4 15. h3 Qd7 16. Kh2 Rad8 17. a3 Bd6) 11... e4?? { (-7.42 → 1.08) Blunder. Bxc4 was best. } (11... Bxc4 12. Nc3 e4 13. Nh4 Bxf1 14. Qxf1 Re8 15. d4 exd3 16. Bxh6 Ng4 17. Bxc6 bxc6 18. Rd1) 12. cxd5 Nxd5?? { (1.04 → 6.94) Blunder. exf3 was best. } (12... exf3 13. Qxf3) 13. Nh4?? { (6.94 → 2.59) Blunder. Ne1 was best. } (13. Ne1 Bf6) 13... e3?? { (2.59 → 8.53) Blunder. Bxh4 was best. } (13... Bxh4 14. gxh4 Nf4 15. Bxe4 Nh3+ 16. Kg2 Qxh4 17. d3 f5 18. Qf3 fxe4 19. Qxh3 Qxh3+ 20. Kxh3) 14. dxe3 Bc5 15. b3 Nc3 16. Qc2 Ne2+ 17. Kh1 Nf4 18. Qb2 Nd3 19. Qc2 Ndb4 20. Nf5?? { (10.85 → -8.21) Blunder. Qxc5 was best. } (20. Qxc5) 20... g6?? { (-8.21 → 10.82) Blunder. Nxc2 was best. } (20... Nxc2) 21. Nxh6+ Kg7 22. e4?? { (10.61 → -7.61) Blunder. Qxc5 was best. } (22. Qxc5 Kxh6) 22... Nxc2 23. Bb2+ Kxh6 24. Rac1 N2d4?! { (-9.36 → -6.17) Inaccuracy. Qd2 was best. } (24... Qd2 25. Nxc7) 25. Rxc5 Ne5?? { (-6.38 → -0.54) Blunder. Qe7 was best. } (25... Qe7) 26. Rxe5?! { (-0.54 → -1.24) Inaccuracy. Bxd4 was best. } (26. Bxd4 a6 27. Rd5 Nd7 28. Nxc7 Rc8 29. Nxa6 bxa6 30. Be3+ Kh7 31. Rfd1 Rc7 32. Bh3 Qe7) 26... Re8?? { (-1.24 → 3.40) Blunder. Nxb5 was best. } (26... Nxb5 27. Rxb5) 27. Rc5?? { (3.40 → -2.04) Blunder. Rxe8 was best. } (27. Rxe8 Qxe8) 27... Rxe4?? { (-2.04 → 6.34) Blunder. Nxb5 was best. } (27... Nxb5) 28. Bxe4 f5?! { (6.00 → 8.51) Inaccuracy. Qe7 was best. } (28... Qe7) 29. Bf3?? { (8.51 → -1.58) Blunder. Bxd4 was best. } (29. Bxd4) 29... Nxf3 30. Bc1+? { (-2.01 → -3.37) Mistake. Kg2 was best. } (30. Kg2) 30... Kh5?? { (-3.37 → -1.44) Blunder. g5 was best. } (30... g5 31. Nc3) 31. Kg2 Ne1+?? { (-1.95 → 8.67) Blunder. Qd3 was best. } (31... Qd3 32. Nc3) 32. Rxe1 Qg5 33. Nd4 c6 34. Ne6 Re8?! { (13.62 → Mate in 10) Checkmate is now unavoidable. Qf6 was best. } (34... Qf6 35. Nf4+) 35. Nxg5?! { (Mate in 10 → 12.10) Lost forced checkmate sequence. Ng7+ was best. } (35. Ng7+ Kh6 36. Bxg5+ Kxg5 37. Nxe8 Kh6 38. Re7 b6 39. Rxc6 f4 40. gxf4 a5 41. Rxb6 a4) 35... Rxe1 36. Bd2 f4?! { (12.42 → Mate in 3) Checkmate is now unavoidable. Rd1 was best. } (36... Rd1 37. Nf3) 37. Bxe1?! { (Mate in 3 → 60.35) Lost forced checkmate sequence. Nf7+ was best. } (37. Nf7+ Re5 38. Rxe5+ Kg4 39. f3#) 37... fxg3?! { (60.35 → Mate in 3) Checkmate is now unavoidable. Kh6 was best. } (37... Kh6 38. gxf4 Kg7 39. Re5 Kf8 40. Kf3 b5 41. Rc5 Ke7 42. Rxc6 Kd7 43. Ra6 Kc7 44. Rxa7+) 38. fxg3?! { (Mate in 3 → 59.35) Lost forced checkmate sequence. Nf7+ was best. } (38. Nf7+ Kg4 39. hxg3 b6 40. Rg5#) 38... b5?! { (59.35 → Mate in 2) Checkmate is now unavoidable. b6 was best. } (38... b6 39. Re5 Kh6 40. Ne4 Kg7 41. Re7+ Kf8 42. Rxa7 Ke8 43. Rc7 c5 44. Kf3 Kd8 45. Rc6) 39. Nf3+?! { (Mate in 2 → 65.88) Lost forced checkmate sequence. Nf7+ was best. } (39. Nf7+ Kg4 40. h3#) 39... Kh6 40. g4 b4?! { (71.74 → Mate in 9) Checkmate is now unavoidable. Kg7 was best. } (40... Kg7 41. Rxc6) 41. g5+ Kh5 42. h4 Kg4 43. Nh2+?! { (Mate in 5 → 76.73) Lost forced checkmate sequence. Bd2 was best. } (43. Bd2 a5 44. Nh2+ Kh5 45. Kg3 a4 46. Ng4 axb3 47. Nf6#) 43... Kf4 44. h5 Ke4 45. hxg6 Kd4 46. Ra5 Ke4 47. g7 c5 48. g8=Q Kd4 49. g6 Ke4 50. g7 Kf4 51. Qh7 Ke5 52. g8=Q Kd6 53. Qe6+ Kxe6 54. Ra6+ Kd5 55. Qh4 Ke5 56. Ra5 Ke6 57. Rxc5 Kf7 58. Qh6 Ke8 59. Rc7 Kd8 60. Qd6+ Ke8 61. Qd8+ Kxd8 62. Rc4?! { (Mate in 9 → 74.83) Lost forced checkmate sequence. Rxa7 was best. } (62. Rxa7 Kc8 63. Bxb4 Kb8 64. Bc5 Kc8 65. a4 Kb8 66. Re7 Kc8 67. a5 Kd8 68. a6 Kc8) 62... a5 63. Bxb4 axb4 64. Rxb4 Ke8 65. a4 Kf8 66. a5 Kg8 67. a6 Kh8 68. a7 Kg8 69. Rb7 Kf8 70. a8=R# { White wins by checkmate. } 1-0