[Event "Experimental Marathon"] [Site "https://lichess.org/C6dByYMu"] [Date "2015.06.20"] [White "chesspuzzles"] [Black "Toadofsky"] [Result "1-0"] [UTCDate "2015.06.20"] [UTCTime "19:59:22"] [WhiteElo "2179"] [BlackElo "2030"] [WhiteRatingDiff "+7"] [BlackRatingDiff "-7"] [Variant "Standard"] [TimeControl "60+0"] [ECO "E81"] [Opening "King's Indian Defense: Sämisch Variation, Bobotsov-Korchnoi-Petrosian Variation"] [Termination "Normal"] [Annotator "lichess.org"] 1. d4 g6 2. c4 Bg7 3. Nc3 d6 4. e4 Nf6 5. f3 O-O 6. Nge2 { E81 King's Indian Defense: Sämisch Variation, Bobotsov-Korchnoi-Petrosian Variation } c5 7. Be3 cxd4 8. Nxd4 e5?! { (0.25 → 1.15) Inaccuracy. Nfd7 was best. } (8... Nfd7 9. Be2 Nc6 10. Qd2 Bxd4 11. Bxd4 Nxd4 12. Qxd4 Qb6 13. Qxb6 Nxb6 14. Kf2 Be6 15. b3 Nd7 16. Rac1 Kg7 17. h4 Rac8 18. h5) 9. Qd2?? { (1.15 → -2.07) Blunder. Ndb5 was best. } (9. Ndb5 a6 10. Nxd6 Nc6 11. Nxc8 Rxc8 12. Qxd8 Rfxd8 13. Nd5 Nxd5 14. exd5 Nb4 15. Kd2 f5 16. Be2 e4 17. fxe4 Bxb2 18. Rab1) 9... Nc6?? { (-2.07 → 0.89) Blunder. exd4 was best. } (9... exd4 10. Bxd4 Nc6 11. Be3 Be6 12. Be2 Nd7 13. O-O Qa5 14. Rfd1 Bxc3 15. Qxc3 Qxc3 16. bxc3 Nde5 17. f4 Nxc4 18. Bxc4 Bxc4 19. Rxd6) 10. Nxc6 bxc6 11. O-O-O Rb8 12. Qxd6 Qa5?? { (2.03 → 7.42) Blunder. Qxd6 was best. } (12... Qxd6 13. Rxd6 Bb7 14. Bxa7 Ra8 15. Be3 Rfb8 16. Be2 Ne8 17. Rd7 Nf6 18. Rd3 Ne8 19. Rhd1 Nc7 20. Rd7 Ne6 21. b3 Nf8 22. R7d6) 13. Qxb8 Be6 14. Qd6 Rb8?! { (6.79 → 19.44) Inaccuracy. Rc8 was best. } (14... Rc8 15. Qc5 Qxc5 16. Bxc5 a6 17. Kc2 Nd7 18. Be7 Bh6 19. h4 Be3 20. h5 f6 21. Bd6 Ra8 22. b3 Kg7 23. Bd3 Nc5 24. Be2) 15. Qa3?! { (19.44 → 6.10) Inaccuracy. Qxb8+ was best. } (15. Qxb8+ Bf8 16. Bh6 Qb4 17. Qxb4 Bxh6+ 18. Kc2 Nd7 19. Qb7 c5 20. Qxa7 Be3 21. Be2 Kg7 22. Qc7 h5 23. b3 Bg5 24. Qc8 h4) 15... Nd5?! { (6.10 → 17.39) Inaccuracy. Qxa3 was best. } (15... Qxa3 16. bxa3 Bf8 17. Kc2 Bxa3 18. Rb1 Ra8 19. Be2 Nd7 20. Na4 Bf8 21. Kc3 f5 22. exf5 gxf5 23. Rb7 e4 24. Rd1 Bg7+ 25. Kb3) 16. Qxa5 Nxc3 17. Qxc3 Bxc4 18. Qxc4 Bf8 19. Bc5?! { (Mate in 6 → 28.41) Lost forced checkmate sequence. Rd7 was best. } (19. Rd7 Be7 20. Rxe7 Rf8 21. Bh6 Kh8 22. Bxf8 c5 23. Qxf7 g5 24. Qxh7#) 19... Be7?! { (28.41 → Mate in 7) Checkmate is now unavoidable. Re8 was best. } (19... Re8 20. Rd7 Re6 21. Rd8 Kg7 22. Bxf8+ Kf6 23. Ra8 g5 24. Rxa7 h6 25. h4 g4 26. Bxh6 Kg6 27. Be3 gxf3 28. gxf3 Kf6 29. h5) 20. Bxe7 Rc8 21. Bf6 c5 22. Qd3 Rf8 23. Qd8 { Black resigns. } 1-0