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Puzzles (3 cohencoins award for each match):

Puzzle COIRo: 999999999

SaViNa (1240) +9
FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/0nBexTaF"] [Date "2026.03.18"] [White "SaViNa"] [Black "Maria"] [Result "1-0"] [UTCDate "2026.03.18"] [UTCTime "20:49:00"] [WhiteElo "1240"] [BlackElo "1209"] [WhiteRatingDiff "+9"] [BlackRatingDiff "-7"] [BlackTitle "❦"] [Variant "Standard"] [TimeControl "420+2"] [ECO "C42"] [Opening "Russian Game: Three Knights Game"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 e5 2. Nf3 Nf6 3. Nc3?! { (0.75 → 0.07) Inaccuracy. Nxe5 was best. } { C42 Russian Game: Three Knights Game } (3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Nc6 7. O-O Be7 8. c4 Nf6 9. Nc3 O-O) 3... Bb4?! { (0.07 → 0.74) Inaccuracy. Nc6 was best. } (3... Nc6 4. Bb5 Bd6 5. O-O O-O 6. d3 Nd4 7. Ba4 Nxf3+ 8. Qxf3 c6 9. Bb3 a5 10. Kh1) 4. d4?? { (0.74 → -0.95) Blunder. Nxe5 was best. } (4. Nxe5 O-O) 4... exd4 5. Nxd4 Qe7?! { (-0.53 → 0.25) Inaccuracy. O-O was best. } (5... O-O 6. Bd3) 6. Bd2? { (0.25 → -1.15) Mistake. Bd3 was best. } (6. Bd3 d5 7. O-O dxe4 8. Re1 Bxc3 9. bxc3 O-O 10. Bg5 Qd7 11. Bf1 Qe7 12. Bxf6 Qxf6) 6... Bxc3 7. Bxc3 Qxe4+?? { (-1.72 → 0.05) Blunder. Nxe4 was best. } (7... Nxe4) 8. Be2?! { (0.05 → -0.75) Inaccuracy. Ne2 was best. } (8. Ne2 d6) 8... Qxg2? { (-0.75 → 0.64) Mistake. Nd5 was best. } (8... Nd5 9. Qd2 Nxc3 10. Qxc3 O-O 11. O-O-O c6 12. Rhe1 d5 13. Bd3 Qf4+ 14. Qd2 Qxd2+ 15. Kxd2) 9. Bf3 Qh3?? { (0.56 → 3.32) Blunder. Qg5 was best. } (9... Qg5 10. Qd2) 10. Nf5?? { (3.32 → -6.11) Blunder. Qe2+ was best. } (10. Qe2+ Kd8) 10... Qxf5 11. Bxf6 Qxf6 12. Qd3 Qe5+ 13. Be4 Qxb2 14. Rd1 Nc6 15. Bxc6 bxc6 16. Qe4+ Kd8 17. Rg1 Rb8 18. Ke2 Qb5+ 19. Rd3 Re8 20. Qxe8+ Kxe8 21. Rxg7 d6 22. Kd2 Bf5 23. Re3+ Be6 24. Rg8+ Kd7 25. Rxb8 Qb4+?? { (-9.28 → 7.60) Blunder. Qxb8 was best. } (25... Qxb8) 26. Rxb4 Bxa2 27. Rh4 d5 28. Rxh7 d4 29. Rxf7+ Kd6?! { (6.07 → 9.75) Inaccuracy. Bxf7 was best. } (29... Bxf7 30. Re5 Kd6 31. Ra5 Be8 32. h4 c5 33. Rxa7 Bh5 34. Ra6+ c6 35. Ra7 c4 36. c3) 30. Rg3?! { (9.75 → 6.42) Inaccuracy. Rf6+ was best. } (30. Rf6+) 30... Bxf7 31. Rg7 Be6 32. h4 a5 33. h5 a4 34. h6 a3 35. h7 a2 36. h8=Q a1=Q?! { (62.11 → Mate in 6) Checkmate is now unavoidable. Kc5 was best. } (36... Kc5 37. Qf8+) 37. Qd8+?? { (Mate in 6 → 4.25) Lost forced checkmate sequence. Qf8+ was best. } (37. Qf8+ Kd5 38. Rg5+ Bf5 39. Qxf5+ Kd6 40. Rg6+ Ke7 41. Rg7+ Ke8 42. Qc8#) 37... Ke5? { (4.25 → 7.23) Mistake. Kc5 was best. } (37... Kc5 38. Qe7+ Kb5 39. Qxe6 Qc3+ 40. Kd1 Qa1+ 41. Ke2 d3+ 42. Kxd3 Qd1+ 43. Ke4 Qxc2+ 44. Kf4) 38. Rg5+ Ke4?? { (6.60 → Mate in 3) Checkmate is now unavoidable. Bf5 was best. } (38... Bf5 39. Qxc7+) 39. Rg4+?? { (Mate in 3 → -6.46) Lost forced checkmate sequence. f3+ was best. } (39. f3+ Kxf3 40. Qf6+ Ke4 41. Re5#) 39... Ke5?? { (-6.46 → Mate in 6) Checkmate is now unavoidable. Bxg4 was best. } (39... Bxg4 40. Qe7+) 40. f4+?? { (Mate in 6 → 4.66) Lost forced checkmate sequence. Qxc7+ was best. } (40. Qxc7+ Kd5 41. Rg5+ Bf5 42. Rxf5+ Ke6 43. Qe5+ Kd7 44. Rf7+ Kc8 45. Qc7#) 40... Ke4 41. f5+ Kxf5?? { (4.62 → Mate in 1) Checkmate is now unavoidable. Kf3 was best. } (41... Kf3) 42. Qg5# { White wins by checkmate. } 1-0
Computer analysisMove timesCrosstableFEN & PGN
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