[Event "Moscu Mathematics Institute"] [Site "https://lichess.org/spLLlRXz"] [Date "1963.04.04"] [Round "?"] [White "David Bronstein (?)"] [Black "M20 (Computer) (?)"] [Result "1-0"] [GameId "spLLlRXz"] [WhiteElo "?"] [BlackElo "?"] [Variant "Standard"] [TimeControl "-"] [ECO "C34"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 { [%eval 0.24] } 1... e5 { [%eval 0.37] } 2. f4?! { (0.37 → -0.46) Inaccuracy. Nf3 was best. } { [%eval -0.46] } (2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5) 2... exf4 { [%eval -0.24] } 3. Nf3 { [%eval -0.25] } 3... Nf6 { [%eval -0.15] } { C34 King's Gambit Accepted: Schallopp Defense } 4. e5 { [%eval -0.56] } 4... Ng4? { (-0.56 → 0.70) Mistake. Nh5 was best. } { [%eval 0.7] } (4... Nh5 5. Be2 g5 6. Nc3 d5 7. Nxg5 Qxg5 8. Bxh5 Qh4+ 9. Kf1) 5. d4?! { (0.70 → -0.05) Inaccuracy. h3 was best. } { [%eval -0.05] } (5. h3 Nh6 6. d4 d6 7. Bxf4 dxe5 8. Bxe5 Nc6 9. Bb5 Bd7) 5... g5?! { (-0.05 → 0.85) Inaccuracy. d6 was best. } { [%eval 0.85] } (5... d6 6. Bxf4 dxe5 7. Nxe5 Bd6 8. Bb5+ c6 9. Be2 Nxe5 10. dxe5) 6. Nc3 { [%eval 0.92] } 6... Ne3?? { (0.92 → 3.02) Blunder. d6 was best. } { [%eval 3.02] } (6... d6 7. h3 Nh6 8. h4 dxe5 9. Nxe5 Nf5 10. Bc4 Qxd4 11. Qe2) 7. Qe2?? { (3.02 → 0.46) Blunder. Bxe3 was best. } { [%eval 0.46] } (7. Bxe3 fxe3 8. Bc4 b5 9. Bb3 Be7 10. Qd3 Bb7 11. Qxe3 O-O 12. O-O Kh8 13. Rae1 g4) 7... Nxf1?! { (0.46 → 1.30) Inaccuracy. g4 was best. } { [%eval 1.3] } (7... g4 8. Bxe3 fxe3 9. Ng1 d6 10. Qxe3 dxe5 11. Qxe5+ Qe7 12. Qxe7+) 8. Ne4 { [%eval 0.95] } 8... Ne3?? { (0.95 → 4.84) Blunder. Be7 was best. } { [%eval 4.84] } (8... Be7 9. Kxf1) 9. Nf6+ { [%eval 4.2] } 9... Ke7 { [%eval 4.75] } 10. Bd2?? { (4.75 → 0.00) Blunder. Bxe3 was best. } { [%eval 0.0] } (10. Bxe3 h6) 10... Nxc2+ { [%eval 0.0] } 11. Kf2 { [%eval 0.46] } 11... Nxa1? { (0.46 → 1.87) Mistake. Bg7 was best. } { [%eval 1.87] } (11... Bg7 12. Rac1 Ne3 13. Bb4+ d6 14. Rxc7+ Qxc7 15. exd6+ Kxf6 16. dxc7 Nc6 17. Qb5 h6 18. h4) 12. Nd5+?? { (1.87 → 0.00) Blunder. Nxg5 was best. } { [%eval 0.0] } (12. Nxg5 Bh6 13. Bxf4 Qf8 14. Nd5+ Ke8 15. Qh5 Na6 16. Nf6+ Ke7 17. Rxa1 Nb4 18. Bd2 c5) 12... Ke6?? { (0.00 → 6.51) Blunder. Ke8 was best. } { [%eval 6.51] } (12... Ke8 13. Nf6+ Ke7 14. Bb4+ d6 15. Nd5+ Kd7 16. Nf6+) 13. Qc4 { [%eval 4.15] } 13... b5?? { (4.15 → Mate in 10) Checkmate is now unavoidable. Kf5 was best. } { [%eval #10] } (13... Kf5 14. Qd3+) 14. Nxg5+ { [%eval #9] } 14... Qxg5 { [%eval #9] } 15. Nxc7+ { [%eval #8] } 15... Ke7 { [%eval #8] } 16. Nd5+ { [%eval #7] } 16... Ke6 { [%eval #7] } 17. Nxf4+ { [%eval #6] } 17... Ke7 { [%eval #6] } 18. Nd5+ { [%eval #5] } 18... Ke8 { [%eval #5] } 19. Qxc8+ { [%eval #4] } 19... Qd8 { [%eval #4] } 20. Nc7+ { [%eval #3] } 20... Ke7 { [%eval #3] } 21. Bb4+ { [%eval #2] } 21... d6 { [%eval #2] } 22. Bxd6+ { [%eval #1] } 22... Qxd6 { [%eval #1] } 23. Qe8# { White wins by checkmate. } 1-0