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Puzzles (3 cohencoins award for each match):

FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/l7dGkN5c"] [Date "2025.06.30"] [White "ChessMasterPlayer"] [Black "AVACODOISNOTATOMATO"] [Result "1-0"] [UTCDate "2025.06.30"] [UTCTime "23:32:22"] [WhiteElo "1463"] [BlackElo "1520"] [WhiteRatingDiff "+9"] [BlackRatingDiff "-15"] [WhiteTitle "GM"] [BlackTitle "IM"] [Variant "Standard"] [TimeControl "420+2"] [ECO "D02"] [Opening "Queen's Pawn Game: Zukertort Variation"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. d4 d5 2. Nf3 { D02 Queen's Pawn Game: Zukertort Variation } Bf5 3. Bf4 Nc6 4. e3 Qd7?! { (0.38 → 1.00) Inaccuracy. e6 was best. } (4... e6 5. a3 Bd6 6. Bg3 Nf6 7. c4 O-O 8. Nc3 Ne7 9. c5 Bxg3 10. hxg3 Ng6 11. Qb3) 5. Bd3?! { (1.00 → 0.42) Inaccuracy. c4 was best. } (5. c4 Nf6) 5... O-O-O 6. Nc3 e6 7. Ne5?! { (0.71 → -0.20) Inaccuracy. Bxf5 was best. } (7. Bxf5 exf5) 7... Nxe5 8. Bxe5 Nh6 9. Bxf5?! { (0.29 → -0.69) Inaccuracy. Bf4 was best. } (9. Bf4) 9... exf5?! { (-0.69 → -0.01) Inaccuracy. Nxf5 was best. } (9... Nxf5) 10. Qf3? { (-0.01 → -1.07) Mistake. Bf4 was best. } (10. Bf4 Ng4 11. Qd3 Kb8 12. Nb5 Rc8 13. O-O Nf6 14. Be5 Ng4) 10... Bb4?? { (-1.07 → 3.57) Blunder. f6 was best. } (10... f6 11. Bg3 Bb4 12. Qe2 Bxc3+ 13. bxc3 Rhe8 14. O-O Nf7 15. c4 g5 16. Qd3 dxc4 17. Qxc4) 11. Bxg7 Ng4 12. Bxh8 Rxh8 13. O-O-O? { (3.99 → 2.37) Mistake. a4 was best. } (13. a4) 13... Nf6?? { (2.37 → 6.25) Blunder. Bxc3 was best. } (13... Bxc3 14. bxc3 Nf6 15. g4 Ne4 16. Qxf5 Qxf5 17. gxf5 Nxf2 18. Rhg1 Nxd1 19. Kxd1 Kd7 20. a4) 14. Ne2 h5 15. c3 Ba5 16. Qg3?! { (6.62 → 5.00) Inaccuracy. h4 was best. } (16. h4 Ne4 17. Ng3 Qe6 18. Kb1 Rh6 19. Nxe4 fxe4 20. Qh3 Qxh3 21. Rxh3 Rf6 22. f3 Bxc3) 16... Ne4 17. Qg7? { (4.98 → 3.08) Mistake. Qf3 was best. } (17. Qf3) 17... Qd8? { (3.08 → 6.12) Mistake. Rd8 was best. } (17... Rd8) 18. Rhf1 f6 19. f3?! { (6.80 → 4.97) Inaccuracy. Qf7 was best. } (19. Qf7 Kb8) 19... Nd6 20. Qg6 h4 21. g3?! { (4.12 → 3.29) Inaccuracy. Rfe1 was best. } (21. Rfe1 Rg8 22. Qh6 Rh8 23. Qf4 Qd7 24. b3 Qb5 25. Kc2 Rg8 26. g3 hxg3 27. a4 Qc6) 21... h3?! { (3.29 → 5.00) Inaccuracy. Rg8 was best. } (21... Rg8 22. Qh6) 22. g4?! { (5.00 → 3.45) Inaccuracy. e4 was best. } (22. e4) 22... fxg4? { (3.45 → 5.72) Mistake. Rg8 was best. } (22... Rg8 23. Qh6) 23. Qxg4+?! { (5.72 → 3.94) Inaccuracy. fxg4 was best. } (23. fxg4) 23... Kb8 24. Nf4 c6?! { (3.58 → 5.10) Inaccuracy. Nc4 was best. } (24... Nc4 25. Rd3 Rg8 26. Qxh3 Qe8 27. Qe6 Qxe6 28. Nxe6 Rg2 29. b3 Rxa2 30. bxc4 dxc4 31. Kb1) 25. Ne6 Qe7 26. Nc5?! { (5.98 → 3.88) Inaccuracy. e4 was best. } (26. e4) 26... Qxe3+ 27. Kc2?? { (3.44 → 0.54) Blunder. Kb1 was best. } (27. Kb1 Bc7) 27... Qe2+?? { (0.54 → 2.93) Blunder. Nc4 was best. } (27... Nc4 28. Kb1 Bc7 29. Qg7 Rd8 30. Rfe1 Qf2 31. Nd3 Qxh2 32. f4 f5 33. Qg5 a5 34. Qxf5) 28. Kc1? { (2.93 → 1.50) Mistake. Kb1 was best. } (28. Kb1 Bc7 29. Qg1 Nc4 30. Qf2 Qe7 31. Rde1 Qh7+ 32. Ka1 a5 33. b3 Nd6 34. Kb2 Nf5) 28... Qxh2?? { (1.50 → 7.00) Blunder. Nc4 was best. } (28... Nc4 29. Qg3+ Bc7 30. Qf2 Qe3+ 31. Kb1 Qf4 32. Rh1 a5 33. Ka1 Bd6 34. Nd3 Qf5 35. Rhg1) 29. Qd7?? { (7.00 → 0.43) Blunder. Rd2 was best. } (29. Rd2 Qxd2+ 30. Kxd2 Bc7 31. Kc1 Ne8 32. Nd7+ Ka8 33. Rh1 f5 34. Qxf5 h2 35. Nc5) 29... Qf4+ 30. Kb1 h2 31. Rh1 Qg3 32. Qe6? { (1.37 → 0.00) Mistake. a3 was best. } (32. a3) 32... Qxf3?? { (0.00 → 5.62) Blunder. Re8 was best. } (32... Re8 33. Qxf6 Bd8 34. Qh6 Re2 35. Ka1 a5 36. Qf8 Re8 37. Qh6) 33. Qxd6+ Kc8?? { (5.83 → Mate in 2) Checkmate is now unavoidable. Bc7 was best. } (33... Bc7) 34. Qd7+ Kb8 35. Qxb7# { White wins by checkmate. } 1-0
Computer analysisMove timesCrosstableFEN & PGN
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