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Puzzles (3 cohencoins award for each match):

Puzzle gdbXt: 1073

🌊 BENJAMIN4 (1683) −7
FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/GnYWvb1V"] [Date "2025.10.10"] [White "Drew"] [Black "BENJAMIN4"] [Result "1-0"] [UTCDate "2025.10.10"] [UTCTime "20:28:20"] [WhiteElo "1619"] [BlackElo "1683"] [WhiteRatingDiff "+12"] [BlackRatingDiff "-7"] [WhiteTitle "GM"] [BlackTitle "🌊"] [Variant "Standard"] [TimeControl "420+2"] [ECO "D06"] [Opening "Queen's Gambit Declined: Marshall Defense"] [Termination "Time forfeit"] [Annotator "cohenchessclub.com"] 1. d4 d5 2. c4 Nf6?! { (0.37 → 0.88) Inaccuracy. e6 was best. } { D06 Queen's Gambit Declined: Marshall Defense } (2... e6 3. Nf3 Nf6 4. cxd5 exd5 5. Nc3 h6 6. Bf4 Bd6 7. Bxd6 Qxd6 8. e3 c6 9. Bd3) 3. Bf4? { (0.88 → -0.49) Mistake. cxd5 was best. } (3. cxd5 g6 4. Nf3 Bg7 5. Qa4+ c6 6. dxc6 Nxc6 7. Nc3 Bf5 8. e3 a6 9. Ne5 O-O) 3... c5 4. Nf3 e6 5. Nc3 Nc6? { (0.00 → 1.25) Mistake. cxd4 was best. } (5... cxd4 6. Nxd4) 6. Ne5?? { (1.25 → -0.84) Blunder. Nb5 was best. } (6. Nb5 Qa5+) 6... Nxd4 7. e3 Nf5?? { (0.00 → 2.64) Blunder. Nc6 was best. } (7... Nc6 8. Qa4) 8. g4 Nd6 9. g5 Nfe4 10. Qh5?? { (2.23 → -2.38) Blunder. Qa4+ was best. } (10. Qa4+ Ke7) 10... g6? { (-2.38 → -1.23) Mistake. Qa5 was best. } (10... Qa5 11. Rc1 d4 12. exd4 cxd4 13. Bg2 dxc3 14. b4 Qc7 15. c5 Nc4 16. Bxe4 Nxe5 17. O-O) 11. Qf3?? { (-1.23 → -3.59) Blunder. Qd1 was best. } (11. Qd1) 11... Nxc3?? { (-3.59 → -1.26) Blunder. Qa5 was best. } (11... Qa5 12. Rc1 d4 13. Bd3 dxc3 14. bxc3 Nxc3 15. O-O Bg7 16. h4 Nf5 17. h5 O-O 18. h6) 12. bxc3 Nxc4?? { (-0.82 → 5.82) Blunder. Bg7 was best. } (12... Bg7 13. h4) 13. Bxc4 dxc4 14. Rd1 Qa5 15. e4?? { (10.45 → 2.32) Blunder. Bg3 was best. } (15. Bg3) 15... Be7? { (2.32 → 4.35) Mistake. Bg7 was best. } (15... Bg7 16. h4 O-O 17. h5 Qc7 18. Qg3 Rd8 19. O-O Qe7 20. h6 Bh8 21. Nxc4 Rxd1 22. Rxd1) 16. Bd2?? { (4.35 → 1.27) Blunder. h4 was best. } (16. h4) 16... O-O 17. Ra1?? { (1.75 → -1.48) Blunder. Qg3 was best. } (17. Qg3 Qxa2 18. h4 Qc2 19. f3 Bd6 20. h5 Bxe5 21. Qxe5 Rd8 22. h6 Kf8 23. Qh8+ Ke7) 17... Bd6?? { (-1.48 → 0.76) Blunder. b5 was best. } (17... b5 18. Rd1 f6 19. gxf6 Bxf6 20. Qg3 Bb7 21. Nxg6 hxg6 22. Qxg6+ Bg7 23. Rg1 Rf7 24. Qxe6) 18. Nxc4?? { (0.76 → -1.46) Blunder. Ng4 was best. } (18. Ng4 Be7 19. Qg3 Qd8 20. h4 e5 21. Nh6+ Kh8 22. h5 Qc7 23. f4 Qc6 24. O-O Qxe4) 18... Qa6 19. Qd3?? { (-1.26 → -3.76) Blunder. Nxd6 was best. } (19. Nxd6 Qxd6 20. c4 e5 21. Bc3 f5 22. Rd1 Qc6 23. O-O Be6 24. Qg3 f4 25. Qd3 Rae8) 19... Be7? { (-3.76 → -1.84) Mistake. Bc7 was best. } (19... Bc7 20. Qe2) 20. f4? { (-1.84 → -3.46) Mistake. h4 was best. } (20. h4 Rd8) 20... b5 21. Ne5 c4? { (-3.20 → -1.78) Mistake. Bb7 was best. } (21... Bb7) 22. Qf3? { (-1.78 → -3.24) Mistake. Qe3 was best. } (22. Qe3 Bb7) 22... Qd6? { (-3.24 → -1.41) Mistake. f6 was best. } (22... f6) 23. Rd1 Bb7? { (-1.31 → 0.00) Mistake. f6 was best. } (23... f6 24. Be3) 24. Ng4?? { (0.00 → -3.44) Blunder. Be3 was best. } (24. Be3 Qa3 25. Rd7 Qxc3+ 26. Kf1 Qc2 27. Rxb7 Rad8 28. Qf2 Qxe4 29. Qf3 Qc2 30. Qf2 Qe4) 24... f5?? { (-3.44 → 4.77) Blunder. Rfd8 was best. } (24... Rfd8) 25. Nh6+ Kg7 26. Qf2?? { (4.83 → -6.93) Blunder. Be3 was best. } (26. Be3) 26... Bxe4?? { (-6.93 → 1.57) Blunder. Rad8 was best. } (26... Rad8 27. O-O Qc6 28. Be3 Qxe4 29. Qg3 e5 30. Bd4 Rxd4 31. Rxd4 Bc5 32. Re1 Bxd4+ 33. cxd4) 27. Be3 Qa3?? { (1.75 → 12.26) Blunder. Bd3 was best. } (27... Bd3) 28. Bd4+ Bf6 29. Bxf6+ Rxf6 30. Rd7+ Kh8 31. Nf7+?? { (10.13 → -8.98) Blunder. O-O was best. } (31. O-O e5 32. gxf6 Qf8 33. Qh4 Bc6 34. Rg7 Qxg7 35. fxg7+ Kxg7 36. Nxf5+ gxf5 37. Qe7+ Kg8) 31... Kg8?? { (-8.98 → 8.41) Blunder. Rxf7 was best. } (31... Rxf7 32. Qd4+ Kg8 33. Rxf7 Kxf7 34. O-O Qe7 35. h4 Rd8 36. Rd1 Rxd4 37. Rxd4 e5 38. Rd1) 32. Nh6+ Kh8 33. O-O Qxc3 34. Qh4?? { (19.26 → -2.00) Blunder. Qxa7 was best. } (34. Qxa7) 34... Qe3+ 35. Rf2?? { (-1.58 → -11.90) Blunder. Qf2 was best. } (35. Qf2 Qxf2+) 35... Qe1+ 36. Rf1 Qxh4 37. Rxh7+ Kxh7 38. Rd1?! { (-20.04 → Mate in 4) Checkmate is now unavoidable. Rf2 was best. } (38. Rf2 Rff8) 38... Rff8?! { (Mate in 4 → -22.23) Lost forced checkmate sequence. Rd8 was best. } (38... Rd8 39. Rb1 Rd2 40. Ng4 fxg4 41. gxf6 Qf2#) 39. Rd7+ Kh8 40. Kf1 Qxf4+ 41. Ke2 Qxh2+ 42. Ke3 Qh3+ 43. Kd4 Qd3+ 44. Ke5 Qg3+ 45. Kxe6 Rfe8+ 46. Kf7 { White wins on time. } 1-0
Computer analysisMove timesCrosstableFEN & PGN
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