CohenChessClub.com

[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/UpGOTplt"] [Date "2025.09.21"] [White "Gideon"] [Black "Allen"] [Result "0-1"] [UTCDate "2025.09.21"] [UTCTime "17:27:43"] [WhiteElo "1386"] [BlackElo "1414"] [WhiteRatingDiff "-10"] [BlackRatingDiff "+40"] [BlackTitle "GM"] [Variant "Standard"] [TimeControl "420+2"] [ECO "C49"] [Opening "Four Knights Game: Double Spanish"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 e5 2. Nf3 Nc6 3. Nc3 Bb4?! { (0.18 → 0.88) Inaccuracy. Nf6 was best. } (3... Nf6 4. Bb5 Nd4 5. Nxd4 exd4 6. e5 dxc3 7. exf6 Qxf6 8. dxc3 Qe5+ 9. Qe2 Qxe2+ 10. Kxe2) 4. Bb5?! { (0.88 → 0.32) Inaccuracy. Nd5 was best. } (4. Nd5 Nf6 5. c3 Be7 6. Bd3 d6 7. O-O Bg4 8. Bc2 Bh5 9. Re1 O-O 10. h3 Re8) 4... Nf6 { C49 Four Knights Game: Double Spanish } 5. O-O d6? { (0.25 → 1.72) Mistake. O-O was best. } (5... O-O 6. d3 d6 7. Ne2 Ne7 8. c3 Ba5 9. Ba4 Ng6 10. Ng3 c6 11. Bc2 Re8 12. d4) 6. d3? { (1.72 → 0.28) Mistake. Nd5 was best. } (6. Nd5 Nxd5 7. exd5 a6 8. Ba4 b5 9. dxc6 bxa4 10. c3 Ba5 11. Qxa4 Bb6 12. d4 Bg4) 6... Bg4?? { (0.28 → 2.09) Blunder. O-O was best. } (6... O-O 7. Ne2) 7. Bg5?? { (2.09 → 0.35) Blunder. Nd5 was best. } (7. Nd5 Nxd5 8. exd5 a6 9. dxc6 axb5 10. c3 Ba5 11. cxb7 Rb8 12. h3 Bf5 13. a4 c5) 7... h6?? { (0.35 → 2.50) Blunder. Bxc3 was best. } (7... Bxc3 8. bxc3) 8. Bh4?? { (2.50 → -0.25) Blunder. Bxf6 was best. } (8. Bxf6 gxf6 9. Nd5 Bc5 10. h3 Bh5 11. b4 Bb6 12. c3 Kf8 13. Bc4 Nb8 14. Bb3 c6) 8... O-O?? { (-0.25 → 1.99) Blunder. g5 was best. } (8... g5 9. Bg3) 9. d4?? { (1.99 → -3.44) Blunder. Bxf6 was best. } (9. Bxf6 gxf6 10. Bxc6 bxc6 11. h3 Be6 12. Nh4 Kh7 13. Ne2 d5 14. Ng3 Rg8 15. c3 Bf8) 9... Re8?? { (-3.44 → 3.80) Blunder. Bxf3 was best. } (9... Bxf3 10. gxf3) 10. dxe5?? { (3.80 → -0.09) Blunder. Bxf6 was best. } (10. Bxf6) 10... dxe5? { (-0.09 → 1.03) Mistake. Bxc3 was best. } (10... Bxc3) 11. Qxd8 Raxd8?? { (0.90 → 2.92) Blunder. Rexd8 was best. } (11... Rexd8 12. Bxc6 Bxf3 13. Bxb7 Rab8 14. Bxf6 gxf6 15. Bd5 Bg4 16. Rfb1 Kg7 17. Kf1 Bd7 18. Rd1) 12. Rad1?? { (2.92 → -2.21) Blunder. Bxf6 was best. } (12. Bxf6 gxf6) 12... Bxc3 13. bxc3? { (-1.80 → -3.76) Mistake. Bxf6 was best. } (13. Bxf6 Rxd1) 13... a6?? { (-3.76 → 0.92) Blunder. Rxd1 was best. } (13... Rxd1 14. Rxd1 Nxe4 15. Rd5 Bxf3 16. gxf3 Nxc3 17. Bxc6 bxc6 18. Rc5 Ne2+ 19. Kf1 Nd4 20. Bg3) 14. Bc4?? { (0.92 → -5.12) Blunder. Rxd8 was best. } (14. Rxd8 Rxd8 15. Bxc6 Bxf3 16. Bxb7 Be2 17. Rb1 Rd2 18. f3 Bb5 19. Bg3 Nd7 20. Rc1 Bc4) 14... g5?! { (-5.12 → -4.00) Inaccuracy. Rxd1 was best. } (14... Rxd1 15. Rxd1) 15. Bg3?! { (-4.00 → -5.09) Inaccuracy. Rxd8 was best. } (15. Rxd8 Rxd8) 15... Nxe4 16. Bxe5? { (-4.44 → -8.05) Mistake. Bd5 was best. } (16. Bd5 Nxc3) 16... Nxe5? { (-8.05 → -3.81) Mistake. Rxd1 was best. } (16... Rxd1 17. Rxd1) 17. Nxe5? { (-3.81 → -6.69) Mistake. Rxd8 was best. } (17. Rxd8) 17... Bxd1 18. Rxd1 Rxd1+ 19. Bf1 Rxe5 20. f3 Nd2 21. h3?! { (-22.86 → Mate in 7) Checkmate is now unavoidable. Kf2 was best. } (21. Kf2 Rxf1+) 21... Rxf1+ 22. Kh2 Nxf3+ 23. Kg3 f5 24. gxf3 f4+ 25. Kg4 Rg1+ 26. Kh5 Rh1?! { (Mate in 4 → -75.28) Lost forced checkmate sequence. Kg7 was best. } (26... Kg7 27. c4 Rg3 28. a4 Rxh3+ 29. Kg4 Rh4#) 27. Kxh6?! { (-75.28 → Mate in 3) Checkmate is now unavoidable. Kg6 was best. } (27. Kg6 Rc5 28. Kf6 Rxh3 29. Ke7 Rxc3 30. Kd7 Rxc2 31. Kc8 Rxf3 32. Kd8 Rxa2 33. Kd7 Ra4) 27... Rxh3+?! { (Mate in 3 → -75.20) Lost forced checkmate sequence. Kf7 was best. } (27... Kf7 28. Kh5 Rxh3+ 29. Kg4 Rh4#) 28. Kg6 Rh7 29. Kf6 Rc5 30. Ke6 Rh6+ 31. Kd7 Rf5 32. Kxc7 Rf7+ 33. Kd8 Kg7 34. Ke8 Rh8# { Black wins by checkmate. } 0-1