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Puzzles (3 cohencoins award for each match):

Puzzle kcRgp: 616

GM Nathan4 (1309) −3
FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/xN9FP2bb"] [Date "2025.10.03"] [White "Christian1"] [Black "Nathan4"] [Result "1-0"] [UTCDate "2025.10.03"] [UTCTime "23:11:57"] [WhiteElo "1624"] [BlackElo "1309"] [WhiteRatingDiff "+2"] [BlackRatingDiff "-3"] [WhiteTitle "NM🐍"] [BlackTitle "GM"] [Variant "Standard"] [TimeControl "420+2"] [ECO "B01"] [Opening "Scandinavian Defense: Mieses-Kotroc Variation"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 d5 2. exd5 Qxd5 { B01 Scandinavian Defense: Mieses-Kotroc Variation } 3. Nc3 Qe5+ 4. Qe2?! { (1.19 → 0.45) Inaccuracy. Be2 was best. } (4. Be2 c6 5. d4 Qc7 6. Nf3 Nf6 7. O-O e6 8. Re1 Be7 9. g3 O-O 10. a4 b6) 4... Qxe2+ 5. Bxe2 Nf6 6. Nf3 Bg4 7. O-O e5?? { (0.30 → 2.69) Blunder. Nc6 was best. } (7... Nc6) 8. Nxe5 Bxe2 9. Nxe2 Bd6 10. Nf3 O-O 11. Re1 Nc6 12. d3? { (2.42 → 1.16) Mistake. a3 was best. } (12. a3 Rfe8) 12... Bc5? { (1.16 → 2.61) Mistake. Nb4 was best. } (12... Nb4 13. Ned4 c5 14. a3 Nxd3 15. cxd3 cxd4 16. Bd2 Nd7 17. Nxd4 Rfd8 18. Nf3 Nc5 19. d4) 13. d4 Bb4 14. c3 Bd6 15. Bf4 Bxf4 16. Nxf4 Rae8 17. Ne5?! { (3.91 → 2.78) Inaccuracy. Kf1 was best. } (17. Kf1 Rd8 18. Re2 Rfe8 19. Rae1 Kf8 20. Nd3 Ne7 21. g3 Nc8 22. Rxe8+ Nxe8 23. Ke2 b6) 17... Nxe5 18. Rxe5 Rxe5 19. dxe5 Ne4?! { (2.50 → 3.28) Inaccuracy. Nd7 was best. } (19... Nd7 20. Nd3) 20. Re1? { (3.28 → 1.70) Mistake. Rd1 was best. } (20. Rd1 c6 21. Rd4 Nc5 22. Nd3 Nxd3 23. Rxd3 g5 24. Rd7 b5 25. e6 fxe6 26. Kf1 a5) 20... Ng5?? { (1.70 → 4.02) Blunder. Rd8 was best. } (20... Rd8 21. Kf1 Nc5 22. Ke2 Kf8 23. h4 c6 24. Ke3 Ke7 25. g4 a5 26. Rb1 a4 27. b3) 21. g3?? { (4.02 → -5.50) Blunder. h4 was best. } (21. h4 Ne6) 21... Nf3+ 22. Kf1 Nxe1 23. Kxe1 Rd8 24. Ke2 f6 25. e6?! { (-4.42 → -6.61) Inaccuracy. exf6 was best. } (25. exf6 gxf6) 25... Kf8 26. Ke3 Ke7 27. Ke4 g6?! { (-7.61 → -5.44) Inaccuracy. Rd2 was best. } (27... Rd2 28. Nd3 Kxe6 29. h4 Kf7 30. Ke3 Rd1 31. b4 b6 32. Ne5+ fxe5 33. Kf3 e4+ 34. Kf4) 28. g4?! { (-5.44 → -7.38) Inaccuracy. Nd5+ was best. } (28. Nd5+ Kxe6) 28... f5+ 29. gxf5 gxf5+ 30. Kxf5 Rf8+?? { (-5.79 → -2.35) Blunder. Rd2 was best. } (30... Rd2) 31. Ke5 b6?? { (-2.89 → 9.37) Blunder. c6 was best. } (31... c6) 32. Nd5+ Ke8 33. e7?? { (9.50 → 0.00) Blunder. Nxc7+ was best. } (33. Nxc7+) 33... Rxf2 34. Ke6 Rxh2?? { (0.00 → Mate in 1) Checkmate is now unavoidable. Re2+ was best. } (34... Re2+ 35. Kf6 Rf2+ 36. Ke6) 35. Nxc7# { White wins by checkmate. } 1-0
Computer analysisMove timesCrosstableFEN & PGN
Reconnecting