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Puzzles (3 cohencoins award for each match):

Puzzle ZR6Fv: 999999999

GM Islomjon (1333) +5
FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/GUa2pWx0"] [Date "2025.09.12"] [White "Terry"] [Black "Islomjon"] [Result "0-1"] [UTCDate "2025.09.12"] [UTCTime "23:02:56"] [WhiteElo "1066"] [BlackElo "1333"] [WhiteRatingDiff "-13"] [BlackRatingDiff "+5"] [WhiteTitle "IM"] [BlackTitle "GM"] [Variant "Standard"] [TimeControl "420+2"] [ECO "C65"] [Opening "Ruy Lopez: Berlin Defense"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 { C65 Ruy Lopez: Berlin Defense } 4. Bxc6?! { (0.49 → -0.08) Inaccuracy. O-O was best. } (4. O-O Nxe4 5. Re1 Nd6 6. Nxe5 Be7 7. Bf1 Nxe5 8. Rxe5 O-O 9. d4 Bf6 10. Re1 Re8) 4... dxc6 5. O-O Nxe4 6. Qe2 Bf5? { (-0.40 → 0.66) Mistake. Ng5 was best. } (6... Ng5) 7. Nxe5? { (0.66 → -0.80) Mistake. d3 was best. } (7. d3 Nd6 8. Qxe5+ Qe7 9. Qa5 Qd7 10. Bf4 Be7 11. Re1 Be6 12. Nc3 O-O 13. Nd4 Nc4) 7... Bd6? { (-0.80 → 0.25) Mistake. Qf6 was best. } (7... Qf6 8. Nf3) 8. Nf3? { (0.25 → -1.00) Mistake. Nxc6 was best. } (8. Nxc6 bxc6 9. d3 Qe7 10. dxe4 Bxe4 11. Re1 Bf5 12. Qd1 Be6 13. Nc3 O-O 14. Ne4 Rfe8) 8... O-O 9. d3 Nc5 10. Bg5 Qxg5?? { (-1.42 → 7.30) Blunder. Qd7 was best. } (10... Qd7) 11. Nxg5 Rae8 12. Qd2 h6 13. Nf3 g5 14. Nc3 Bf4 15. Qe2?? { (7.16 → 3.35) Blunder. Qd1 was best. } { White offers draw } (15. Qd1 Bg4) 15... Rxe2 16. Nxe2 Bd2?? { (3.60 → 8.51) Blunder. Bd6 was best. } (16... Bd6 17. Rfe1) 17. Rad1? { (8.51 → 4.06) Mistake. Nxd2 was best. } (17. Nxd2 Bg6) 17... Bf4?! { (4.06 → 6.47) Inaccuracy. Ba5 was best. } (17... Ba5 18. Rb1 Bb6 19. Ng3 Be6 20. b3 f5 21. Rbe1 Bd5 22. d4 Ne4 23. c4 Nxg3 24. fxg3) 18. Nxf4 gxf4 19. b4?! { (6.97 → 5.14) Inaccuracy. Rde1 was best. } (19. Rde1 Ne6 20. h3 Kg7 21. Re5 Kf6 22. Rfe1 c5 23. Nh4 Bh7 24. Rh5 Bg6 25. Nxg6 Kxg6) 19... Ne6 20. Nh4 Nd4?! { (4.35 → 6.04) Inaccuracy. Bh7 was best. } (20... Bh7 21. Nf3) 21. Nxf5 Nxf5 22. Rfe1 Kh7 23. Re2 Rg8 24. Rde1?? { (6.62 → 2.40) Blunder. Re4 was best. } (24. Re4 f3) 24... Nh4?? { (2.40 → 5.67) Blunder. f3 was best. } (24... f3 25. Re5) 25. Re8?? { (5.67 → 0.71) Blunder. Kh1 was best. } (25. Kh1) 25... Rxg2+?? { (0.71 → 3.04) Blunder. Nf3+ was best. } (25... Nf3+ 26. Kh1 Nxe1 27. Rxe1 Ra8 28. Re5 f6 29. Rc5 Re8 30. h4 Re1+ 31. Kh2 Kg6 32. a4) 26. Kh1 Rxf2 27. R8e2 Rf3 28. Re7 Kg6 29. Rxc7?? { (3.14 → 0.00) Blunder. Kg1 was best. } { White offers draw } (29. Kg1) 29... Kf5?? { (0.00 → 5.10) Blunder. Rf2 was best. } (29... Rf2 30. Rg1+ Kf6 31. Rg4 Rf1+ 32. Rg1) 30. Rxb7?! { (5.10 → 3.32) Inaccuracy. Rxf7+ was best. } (30. Rxf7+ Kg6 31. Rfe7 Rf2 32. R7e2 Rf3 33. Kg1 Rh3 34. Rf2 f3 35. Re3 Kg5 36. a4 b6) 30... Kg4 31. Rxa7? { (2.65 → 1.44) Mistake. Kg1 was best. } (31. Kg1 Rh3 32. Re2 Nf3+ 33. Kh1 Ng5 34. Rxa7 f3 35. Rf2 Rh4 36. Rf1 Kf4 37. a4 f5) 31... Rf2 32. Rf1?? { (1.42 → Mate in 1) Checkmate is now unavoidable. Rae7 was best. } (32. Rae7 Kf3 33. Rg1 Ng2 34. Rxf7 Ne3 35. a4 Nf1 36. Rg6 Rxh2+ 37. Kg1 Rxc2 38. Rgf6 Nd2) 32... Rxf1# { Black wins by checkmate. } 0-1
Computer analysisMove timesCrosstableFEN & PGN
Reconnecting