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Puzzles (3 cohencoins award for each match):

Puzzle uryqH: 224

Puzzle nZJl8: 438

GM Nathan4 (1412?) +54
FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/zYperOHD"] [Date "2025.07.07"] [White "Joey1"] [Black "Nathan4"] [Result "0-1"] [UTCDate "2025.07.07"] [UTCTime "23:43:17"] [WhiteElo "1223"] [BlackElo "1412"] [WhiteRatingDiff "-23"] [BlackRatingDiff "+54"] [WhiteTitle "NM"] [BlackTitle "GM"] [Variant "Standard"] [TimeControl "420+2"] [ECO "D00"] [Opening "Queen's Pawn Game"] [Termination "Time forfeit"] [Annotator "cohenchessclub.com"] 1. d4 d5 2. e3 { D00 Queen's Pawn Game } Bf5 3. Bb5+ c6 4. Bf1 Nd7 5. h3?! { (-0.46 → -1.26) Inaccuracy. c4 was best. } (5. c4 e6 6. Nf3 Ngf6 7. Nc3 Ne4 8. Bd3 Nxc3 9. bxc3 Bxd3 10. Qxd3 Qa5 11. cxd5 cxd5) 5... Ngf6 6. g4?! { (-0.77 → -1.45) Inaccuracy. Bd3 was best. } (6. Bd3 Bg6 7. Nf3 e6 8. c4 Ne4 9. O-O Bd6 10. Nc3 O-O 11. Ne2 f5 12. Qb3 Bh5) 6... Be4 7. Rh2?! { (-0.97 → -1.75) Inaccuracy. Nf3 was best. } (7. Nf3 h6) 7... e6 8. f3 Bg6 9. Ne2 Bb4+ 10. c3 Bd6 11. Rh1?! { (-2.36 → -3.37) Inaccuracy. Rg2 was best. } (11. Rg2 Qe7 12. Kf2 O-O-O 13. b4 e5 14. Kg1 Bc7 15. b5 c5 16. a4 h5 17. g5 Ne8) 11... c5? { (-3.37 → -1.85) Mistake. e5 was best. } (11... e5 12. h4 h6 13. Bh3 Qe7 14. Nd2 Bd3 15. g5 Nh5 16. Nf1 e4 17. f4 O-O-O) 12. Bg2?! { (-1.85 → -2.49) Inaccuracy. Nf4 was best. } (12. Nf4 O-O 13. h4 e5 14. Nxg6 hxg6 15. dxe5 Nxe5 16. g5 Nh5 17. f4 Nc6 18. Qxd5 Re8) 12... cxd4?! { (-2.49 → -1.69) Inaccuracy. h5 was best. } (12... h5) 13. exd4?! { (-1.69 → -2.44) Inaccuracy. cxd4 was best. } (13. cxd4 Rc8) 13... Bxb1? { (-2.44 → -1.19) Mistake. Qc7 was best. } (13... Qc7 14. Be3 h5 15. Kf2 O-O 16. Nd2 Nb6 17. Re1 Nc4 18. Nxc4 dxc4 19. Qd2 Rae8 20. Kg1) 14. Rxb1 Qa5 15. Kf1?! { (-1.02 → -1.70) Inaccuracy. a4 was best. } (15. a4 O-O 16. h4 Qc7 17. Bh3 Rae8 18. Kf2 Nb6 19. Kg2 h5 20. Qd3 hxg4 21. Bxg4 Nxa4) 15... Qxa2 16. Qc2 O-O 17. g5?! { (-1.82 → -2.57) Inaccuracy. h4 was best. } (17. h4 Qc4) 17... Nh5 18. h4 Ng3+?? { (-3.10 → 0.65) Blunder. Qc4 was best. } (18... Qc4 19. Kg1 Qc7 20. f4 Nxf4 21. Bxf4 Bxf4 22. Nxf4 Qxf4 23. Rh3 Qd6 24. Re1 a5 25. Bf1) 19. Nxg3?! { (0.65 → 0.00) Inaccuracy. Nxg3 was best. } (19. Nxg3) 19... Bxg3 20. Rh3?? { (0.14 → -1.70) Blunder. f4 was best. } (20. f4 f6) 20... Bd6 21. h5 Qc4+?! { (-2.11 → -1.07) Inaccuracy. b5 was best. } (21... b5 22. f4 Rac8 23. Rf3 b4 24. Rf2 Qa5 25. f5 bxc3 26. Bh3 cxb2 27. Qxb2 exf5 28. Bxf5) 22. Ke1 Nb6? { (-1.25 → 0.10) Mistake. Qc7 was best. } (22... Qc7 23. Bf1 Rfe8 24. Bd3 Nf8 25. Bd2 e5 26. Kf1 exd4 27. cxd4 Qb6 28. Qa4 Ne6 29. g6) 23. h6?? { (0.10 → -2.75) Blunder. Bf1 was best. } (23. Bf1 Qc7) 23... g6 24. f4 f5? { (-2.68 → -1.14) Mistake. Qc7 was best. } (24... Qc7) 25. Bf1 Qa4?? { (-1.19 → 1.41) Blunder. Qc7 was best. } (25... Qc7 26. Rf3 Nc4 27. Qe2 Rfe8 28. b3 Na5 29. Kf2 a6 30. Kg1 Qb6 31. Qa2 Nc6 32. Ba3) 26. b3?? { (1.41 → -0.72) Blunder. Qxa4 was best. } (26. Qxa4) 26... Qd7?! { (-0.72 → 0.00) Inaccuracy. Qc6 was best. } (26... Qc6 27. c4) 27. c4 dxc4?! { (0.08 → 1.03) Inaccuracy. Bb4+ was best. } (27... Bb4+ 28. Bd2) 28. bxc4 Qe7?? { (0.62 → 5.73) Blunder. Rac8 was best. } (28... Rac8 29. Qb3 Bb8 30. Be3 Rf7 31. Rc1 Re7 32. Be2 Rc7 33. Kf2 Qc8 34. Rhh1 Rcd7 35. Kg3) 29. Qb2?? { (5.73 → 2.16) Blunder. c5 was best. } (29. c5) 29... e5?? { (2.16 → 4.83) Blunder. Bc7 was best. } (29... Bc7 30. Ra3 Rf7 31. Kf2 Qe8 32. Kg1 Qd8 33. Be3 Rc8 34. Rxa7 Bb8 35. Qxb6 Qxb6 36. Rxb6) 30. dxe5?? { (4.83 → 2.32) Blunder. fxe5 was best. } (30. fxe5 Rae8 31. c5 Bxc5 32. dxc5 Qxc5 33. Be3 Qxe5 34. Kf2 Qxb2+ 35. Rxb2 Re4 36. Bg2 Re6) 30... Bc5 31. Qc3?! { (2.00 → 1.25) Inaccuracy. Be3 was best. } (31. Be3 Rac8 32. Bxc5 Qxc5 33. Rd3 Qxc4 34. Rd4 Qc2 35. Bg2 Kf7 36. Qxc2 Rxc2 37. Bxb7 Rc7) 31... Na4?? { (1.25 → 4.31) Blunder. Rad8 was best. } (31... Rad8 32. Be3) 32. Qb3 Qd7 33. e6?? { (5.84 → -0.48) Blunder. Rd3 was best. } (33. Rd3 Qc6) 33... Qxe6+ 34. Re3?? { (-0.42 → -3.55) Blunder. Kd1 was best. } (34. Kd1) 34... Bxe3 35. Bxe3 Qc6?? { (-3.45 → 0.03) Blunder. Nc5 was best. } (35... Nc5 36. Qa3) 36. Qd3?? { (0.03 → -2.82) Blunder. Qxb7 was best. } (36. Qxb7 Qxb7 37. Rxb7 Rf7 38. Rb3 Re8 39. Kf2 Rc7 40. Bg2 Kf8 41. Bd5 Nc5 42. Ra3 Ne4+) 36... Rad8 37. Qc2 Rfe8 { Black offers draw } 38. c5? { (-4.97 → -13.15) Mistake. Kf2 was best. } (38. Kf2 Nc5 39. Bg2 Qc7 40. Rb3 Nxb3 41. Qxb3 Qe7 42. Bxb7 Kf8 43. c5 Qxe3+ 44. Qxe3 Rxe3) 38... Re4?? { (-13.15 → -2.83) Blunder. Qf3 was best. } (38... Qf3) 39. Bc4+?? { (-2.83 → -6.43) Blunder. Qb3+ was best. } (39. Qb3+ Kf8 40. Kf2 Qc7 41. Qxb7 Rxf4+ 42. Bxf4 Qxf4+ 43. Kg1 Qxg5+ 44. Bg2 Qe3+ 45. Kf1 Qd3+) 39... Kf8 { Black wins on time. } 0-1
Computer analysisMove timesCrosstableFEN & PGN
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