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Puzzles (3 cohencoins award for each match):

Puzzle CaGOi: 669

FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/bneIhbtE"] [Date "2025.12.20"] [White "Islomjon"] [Black "Robbie3"] [Result "1/2-1/2"] [UTCDate "2025.12.20"] [UTCTime "00:36:05"] [WhiteElo "1344"] [BlackElo "1219"] [WhiteRatingDiff "-4"] [BlackRatingDiff "+4"] [WhiteTitle "GM"] [BlackTitle "NM"] [Variant "Standard"] [TimeControl "420+2"] [ECO "C46"] [Opening "Four Knights Game"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 e5 2. Nf3 Nf6 3. Nc3?! { (0.75 → 0.07) Inaccuracy. Nxe5 was best. } (3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Nc6 7. O-O Be7 8. c4 Nf6 9. Nc3 O-O) 3... Nc6 { C46 Four Knights Game } 4. Be2?! { (0.33 → -0.21) Inaccuracy. Bb5 was best. } (4. Bb5 Bb4 5. O-O O-O 6. d3 Re8 7. Bg5 Bxc3 8. bxc3 d6 9. Bh4 Bd7 10. Nd2 h6) 4... d5 5. exd5 Nxd5 6. Nxd5?! { (-0.14 → -0.97) Inaccuracy. Bb5 was best. } (6. Bb5 Nxc3 7. bxc3 Bd6 8. d4 exd4 9. O-O O-O 10. cxd4 h6 11. c4 Bg4 12. Be3 Bxf3) 6... Qxd5 7. O-O Be7?! { (-0.91 → -0.37) Inaccuracy. Bf5 was best. } (7... Bf5 8. d3) 8. d3 O-O 9. Bg5 Bxg5 10. Nxg5 Qd8?! { (-0.62 → 0.00) Inaccuracy. Nd4 was best. } (10... Nd4 11. Re1 f6 12. Nf3 Nxe2+ 13. Qxe2 Bg4 14. h3 Bh5 15. Qe4 Bxf3 16. Qxf3 Qxf3 17. gxf3) 11. Nf3 Nd4 12. Nxd4 exd4 13. Bg4 Bxg4 14. Qxg4 g6 15. Rae1 f5?! { (0.27 → 1.15) Inaccuracy. Qd5 was best. } (15... Qd5 16. Re7 Qc6 17. Qxd4 Qxc2 18. Qe5 Qxd3 19. h4 Rad8 20. Qxc7 Qd4 21. h5 Qxb2 22. Rfe1) 16. Qg3 Re8?? { (0.69 → 2.97) Blunder. Qd6 was best. } (16... Qd6) 17. Rxe8+ Qxe8 18. h3?? { (3.56 → 0.31) Blunder. Qxc7 was best. } (18. Qxc7) 18... c6?! { (0.31 → 1.18) Inaccuracy. Qe7 was best. } (18... Qe7) 19. Qc7 Qc8?? { (0.83 → 2.71) Blunder. Qf7 was best. } (19... Qf7) 20. Qxc8+?? { (2.71 → 0.00) Blunder. Qe7 was best. } (20. Qe7) 20... Rxc8 21. Re1 Kf8 22. Re6 Kf7?! { (-0.21 → 0.76) Inaccuracy. Re8 was best. } (22... Re8 23. Rxe8+ Kxe8 24. Kh2 Ke7 25. Kg3 Kf6 26. Kh4 h6 27. f4 Ke6 28. b3 Ke7 29. g4) 23. Rd6 Ke7?? { (0.68 → 2.43) Blunder. Re8 was best. } (23... Re8 24. Rxd4 Re1+ 25. Kh2 Ke6 26. Rc4 Kd6 27. a4 b5 28. axb5 cxb5 29. Rc8 a5 30. b3) 24. Rxd4 Rd8?! { (2.63 → 3.92) Inaccuracy. b5 was best. } (24... b5 25. Kf1) 25. Re4+?? { (3.92 → -8.25) Blunder. Rxd8 was best. } (25. Rxd8 Kxd8) 25... Kd7?? { (-8.25 → 3.71) Blunder. fxe4 was best. } (25... fxe4 26. Kf1 exd3 27. cxd3 Rxd3 28. Ke2 Rd4 29. g4 Kf6 30. Ke3 c5 31. f4 Rd1 32. a4) 26. Kf1?? { (3.71 → -7.03) Blunder. Rd4+ was best. } (26. Rd4+ Ke7) 26... Re8?? { (-7.03 → 4.17) Blunder. fxe4 was best. } (26... fxe4 27. dxe4) 27. Rd4+?! { (4.17 → 2.94) Inaccuracy. Rxe8 was best. } (27. Rxe8 Kxe8 28. h4 Ke7 29. Ke2 Kd6 30. Ke3 h6 31. Kd4 g5 32. hxg5 hxg5 33. b4 b6) 27... Kc8 28. Rh4 g5?? { (2.96 → 7.38) Blunder. h5 was best. } (28... h5) 29. Rxh7 g4 30. hxg4 fxg4 31. f3 gxf3 32. gxf3 Rf8 33. Ke2 Rg8 34. Re7?! { (6.46 → 4.88) Inaccuracy. Kf2 was best. } (34. Kf2 Rf8 35. Rh5 b5 36. a4 bxa4 37. Rh4 a3 38. bxa3 Rf5 39. Rc4 Kc7 40. f4 Rxf4+) 34... Rg2+ 35. Ke3?? { (4.98 → 0.80) Blunder. Kd1 was best. } (35. Kd1 Rf2 36. Rf7 a5 37. a4 Kb8 38. Rf5 Kc7 39. Rxa5 Rxf3 40. Rh5 Rf2 41. b3 Kb6) 35... Rxc2 36. b4? { (1.07 → 0.02) Mistake. b3 was best. } (36. b3) 36... Rxa2 37. Ke4?? { (0.00 → -7.38) Blunder. f4 was best. } (37. f4 Ra4 38. f5 Rxb4 39. f6 Kd8 40. Re6 Rh4 41. Re7) 37... Rb2?? { (-7.38 → 0.00) Blunder. Re2+ was best. } (37... Re2+ 38. Kd4 Rxe7 39. Kc3 Re1 40. Kd2 Rh1 41. Ke3 b5 42. d4 Kd7 43. f4 Rd1 44. d5) 38. Ke5 Rxb4 39. Kd6?? { (0.00 → -3.07) Blunder. f4 was best. } (39. f4 Kd8 40. Rh7 a5 41. f5 Rb6 42. Ke6 c5+ 43. Kd5 a4 44. Kxc5 Rb1 45. d4 a3) 39... Rd4+ 40. Ke6? { (-3.14 → -5.44) Mistake. Ke5 was best. } (40. Ke5 Rd7) 40... Re4+?? { (-5.44 → 16.75) Blunder. a5 was best. } (40... a5) 41. Kd6?? { (16.75 → -3.03) Blunder. fxe4 was best. } (41. fxe4 a6 42. Kd6 Kb8 43. e5 c5 44. e6 c4 45. dxc4 Ka7 46. Rh7 Kb6 47. c5+ Kb5) 41... Rxe7 42. Kxe7 a5?? { (-3.78 → 7.12) Blunder. b5 was best. } (42... b5) 43. Kd6?? { (7.12 → -8.36) Blunder. f4 was best. } (43. f4) 43... a4 44. Kc5 a3 45. Kb4 a2 46. Kb3 a1=Q 47. f4 Qf6 48. Kc4 Qxf4+ 49. d4 b5+ 50. Kc5 b4 51. Kxc6 b3 52. d5 b2 53. d6 Qxd6+ 54. Kxd6 b1=Q 55. Ke7 Qb4+ 56. Ke6 Qe4+ 57. Kd6 Qd4+ 58. Ke6 Qb6+ 59. Ke5 Qc5+ 60. Ke6 Kc7 61. Kf7 Qe5 62. Kg6 Kd7 63. Kf7 Qe7+ 64. Kg6 Qe5 65. Kf7 Qe6+ 66. Kg7 Ke8 67. Kh7 Qf5+ 68. Kg7 Ke7 69. Kh6 Kf8 { Draw by stalemate. } 1/2-1/2
Computer analysisMove timesCrosstableFEN & PGN
Reconnecting