CohenChessClub.com

[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/E4pcPFMt"] [Date "2026.09.27"] [White "Nathaniel1"] [Black "Rishi"] [Result "0-1"] [UTCDate "2026.09.27"] [UTCTime "17:27:09"] [WhiteElo "1088"] [BlackElo "1423"] [WhiteRatingDiff "-4"] [BlackRatingDiff "+3"] [BlackTitle "GM"] [Variant "Standard"] [TimeControl "420+2"] [ECO "C41"] [Opening "Philidor Defense"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 e5 2. Nf3 d6 { C41 Philidor Defense } 3. Be2?! { (0.71 → 0.19) Inaccuracy. d4 was best. } (3. d4 Nf6) 3... Nc6 4. h4? { (0.55 → -0.47) Mistake. d4 was best. } (4. d4 exd4) 4... Bg4 5. O-O?! { (-0.04 → -0.63) Inaccuracy. c3 was best. } (5. c3 d5 6. Qb3 Nf6 7. Qxb7 Bd7 8. exd5 Rb8 9. Qa6 Nxd5 10. d4 exd4 11. Qc4 Nf6) 5... Nd4?? { (-0.63 → 6.54) Blunder. Be7 was best. } (5... Be7 6. c3) 6. Nxd4 Bxe2 7. Qxe2?? { (6.53 → 2.72) Blunder. Nxe2 was best. } (7. Nxe2 Qxh4 8. d4 O-O-O 9. Nd2 h5 10. Nc3 Qg4 11. Nf3 Be7 12. dxe5 dxe5 13. Qe2 Nf6) 7... exd4 8. d3?? { (2.67 → 0.06) Blunder. Qb5+ was best. } (8. Qb5+ c6 9. Qxb7 Qc8 10. Qxc8+ Rxc8 11. d3 Be7 12. g3 Nf6 13. Nd2 Kd7 14. Nc4 Ng4) 8... Qf6? { (0.06 → 1.43) Mistake. Qxh4 was best. } (8... Qxh4) 9. Qg4? { (1.43 → 0.31) Mistake. Bg5 was best. } (9. Bg5 Qe6) 9... Nh6? { (0.31 → 1.70) Mistake. Be7 was best. } (9... Be7) 10. Qh3?! { (1.70 → 1.02) Inaccuracy. Qh5 was best. } (10. Qh5 c6 11. Bxh6 gxh6 12. Nd2 O-O-O 13. g3 Rg8 14. Rae1 d5 15. exd5 Bb4 16. Ne4 Qg6) 10... Be7 11. h5?! { (0.98 → 0.43) Inaccuracy. Qg3 was best. } (11. Qg3 Qg6) 11... O-O?! { (0.43 → 1.02) Inaccuracy. Qe6 was best. } (11... Qe6 12. Qg3) 12. Bxh6 Qxh6 13. c3? { (0.42 → -0.70) Mistake. f4 was best. } (13. f4 d5 14. exd5 Bd6 15. g3 Rad8 16. a3 g5 17. Qg4 f5 18. Qxg5+ Qxg5 19. fxg5 Be7) 13... dxc3?! { (-0.70 → 0.10) Inaccuracy. Rae8 was best. } (13... Rae8 14. a4) 14. bxc3?? { (0.10 → -1.46) Blunder. Nxc3 was best. } (14. Nxc3 Rae8) 14... Rad8? { (-1.46 → -0.28) Mistake. d5 was best. } (14... d5 15. exd5 Rad8 16. Qf5 Qf6 17. Qxf6 Bxf6 18. Na3 Rxd5 19. Rab1 b6 20. Nb5 Rxd3 21. Nxc7) 15. d4?! { (-0.28 → -1.20) Inaccuracy. f4 was best. } (15. f4) 15... Qg5?? { (-1.20 → 0.70) Blunder. d5 was best. } (15... d5 16. e5 f6 17. Qe6+ Rf7 18. f4 Qxh5 19. Nd2 Qe2 20. Rf2 Qe3 21. Rf1 Qxc3 22. Nf3) 16. e5?? { (0.70 → -4.50) Blunder. f4 was best. } (16. f4 Qh4 17. Qxh4 Bxh4 18. Nd2 f5 19. e5 dxe5 20. fxe5 c5 21. Rad1 cxd4 22. Nf3 Be7) 16... dxe5 17. dxe5?! { (-4.37 → -5.87) Inaccuracy. f4 was best. } (17. f4 exf4) 17... Qxe5 18. h6?! { (-5.05 → -6.77) Inaccuracy. a4 was best. } (18. a4 h6 19. Na3 Bc5 20. a5 Rfe8 21. Qf3 Rd5 22. Nb5 c6 23. Nd4 Bxd4 24. cxd4 Qxd4) 18... gxh6? { (-6.77 → -3.64) Mistake. Bc5 was best. } (18... Bc5) 19. Qxh6? { (-3.64 → -6.38) Mistake. a4 was best. } (19. a4 Bc5) 19... Bd6?? { (-6.38 → -2.17) Blunder. Rd6 was best. } (19... Rd6 20. Qh3 Qg5 21. a4 Rh6 22. Qe3 Qxe3 23. fxe3 Bc5 24. Rf3 Re8 25. Kf2 Rh1 26. a5) 20. Qe3?? { (-2.17 → Mate in 1) Checkmate is now unavoidable. Nd2 was best. } (20. Nd2 Rfe8 21. Nf3 Qxc3 22. Rae1 Qg7 23. Qh4 Kf8 24. g3 b6 25. Kg2 Qg6 26. Rh1 Rxe1) 20... Qh2# { Black wins by checkmate. } 0-1