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Puzzles (3 cohencoins award for each match):

Puzzle H2Mks: 846

GM Drew (1645) +16
FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/rlZTb92I"] [Date "2026.04.15"] [White "xavi"] [Black "Drew"] [Result "0-1"] [UTCDate "2026.04.15"] [UTCTime "23:06:01"] [WhiteElo "1673"] [BlackElo "1645"] [WhiteRatingDiff "-9"] [BlackRatingDiff "+16"] [WhiteTitle "GM🥉"] [BlackTitle "GM"] [Variant "Standard"] [TimeControl "420+2"] [ECO "B08"] [Opening "Pirc Defense: Classical Variation"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Nf3 Nf6 { B08 Pirc Defense: Classical Variation } 5. Bf4 O-O 6. Bc4?! { (0.55 → -0.24) Inaccuracy. Qd2 was best. } (6. Qd2) 6... c5?! { (-0.24 → 0.47) Inaccuracy. Nxe4 was best. } (6... Nxe4) 7. d5?! { (0.47 → -0.41) Inaccuracy. dxc5 was best. } (7. dxc5 Qc7) 7... Bg4?! { (-0.41 → 0.41) Inaccuracy. b5 was best. } (7... b5 8. Bxb5 Nxe4 9. Nxe4 Qa5+ 10. Nc3 Bxc3+ 11. bxc3 Qxb5 12. Nd2 Qa4 13. c4 Ba6 14. Qf3) 8. h3 Bd7? { (0.37 → 1.48) Mistake. Bxf3 was best. } (8... Bxf3 9. Qxf3) 9. O-O Qb6?! { (1.03 → 1.94) Inaccuracy. b5 was best. } (9... b5 10. Nxb5 Nxe4 11. Re1 a6 12. Na3 Nf6 13. Qd2 Re8 14. Bh6 a5 15. Bb5 a4 16. Bxg7) 10. Rb1 Nh5?! { (1.72 → 2.31) Inaccuracy. a6 was best. } (10... a6 11. e5 dxe5 12. Nxe5 Bb5 13. b3 Nbd7 14. Re1 Nh5 15. Bh2 Bxe5 16. Bxe5 Nxe5 17. Rxe5) 11. Bg3?? { (2.31 → -0.94) Blunder. Bh2 was best. } (11. Bh2 a6) 11... Qa5?? { (-0.94 → 1.03) Blunder. Nxg3 was best. } (11... Nxg3 12. fxg3 a6 13. e5 Qb4 14. Be2 dxe5 15. Kh1 f5 16. g4 e4 17. a3 Qb6 18. Ng5) 12. Qd3?? { (1.03 → -1.77) Blunder. Bh4 was best. } (12. Bh4 f6) 12... Na6?? { (-1.77 → 1.37) Blunder. Nxg3 was best. } (12... Nxg3 13. fxg3) 13. Bxa6?? { (1.37 → -0.40) Blunder. Bh2 was best. } (13. Bh2 Nc7 14. a4 a6 15. Ra1 Qb4 16. a5 Bb5 17. Nd2 f5 18. exf5 Rxf5 19. Rae1 Nf4) 13... bxa6?? { (-0.40 → 1.37) Blunder. Nxg3 was best. } (13... Nxg3 14. Bxb7) 14. Ne2?? { (1.37 → -1.31) Blunder. Bh2 was best. } (14. Bh2) 14... Bb5? { (-1.31 → 0.00) Mistake. Nxg3 was best. } (14... Nxg3 15. Nxg3 Rab8 16. e5 dxe5 17. Rfe1 Qc7 18. Qe2 f6 19. b3 e6 20. c4 exd5 21. cxd5) 15. Qd1?? { (0.00 → -1.78) Blunder. c4 was best. } (15. c4 Nxg3 16. Nxg3 Bd7 17. Rfe1 Qxa2 18. e5 Qa5 19. h4 Bg4 20. Nh2 Bc8 21. Nf3 Bg4) 15... Bxe2 16. Qxe2 Qxa2?? { (-1.67 → 0.57) Blunder. Nxg3 was best. } (16... Nxg3 17. fxg3 Qxa2 18. Kh2 Rab8 19. b3 c4 20. b4 a5 21. b5 Qa4 22. e5 Rxb5 23. Qe4) 17. Ra1?? { (0.57 → -2.18) Blunder. Bh2 was best. } (17. Bh2) 17... Qxb2?? { (-2.18 → -0.53) Blunder. Nxg3 was best. } (17... Nxg3 18. fxg3 Qxb2 19. Rxa6 Rfb8 20. e5 Qb5 21. Qxb5 Rxb5 22. c4 Rb6 23. Rfa1 Rxa6 24. Rxa6) 18. Rxa6? { (-0.53 → -2.06) Mistake. Bh2 was best. } (18. Bh2 Nf6) 18... Bd4? { (-2.06 → -0.58) Mistake. Nxg3 was best. } (18... Nxg3 19. fxg3 Rfb8 20. e5 Bxe5 21. Nxe5 Qxe5 22. Qxe5 dxe5 23. Re1 Rb6 24. Ra5 f6 25. c4) 19. Nxd4? { (-0.58 → -1.73) Mistake. Bh2 was best. } (19. Bh2 Nf6 20. e5 Nxd5 21. exd6 exd6 22. Nxd4 cxd4 23. Bxd6 Rfe8 24. Qd3 Nc3 25. Kh2 Qb7) 19... Qxd4?? { (-1.73 → -0.05) Blunder. Nxg3 was best. } (19... Nxg3 20. fxg3 Qxd4+ 21. Kh2 Rfb8 22. Qf3 f6 23. Rfa1 Rb7 24. c3 Qe5 25. R1a3 Rb1 26. Qe2) 20. Raa1?? { (-0.05 → -9.18) Blunder. Bh2 was best. } (20. Bh2 Nf6 21. e5 dxe5 22. Rd1 Qe4 23. Qxe4 Nxe4 24. Bxe5 Rfd8 25. c4 Nd6 26. Rc1 Rd7) 20... Nxg3 { White resigns. } 0-1
Computer analysisMove timesCrosstableFEN & PGN
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