[Event "Reykjavik op"] [Site "Reykjavik"] [Date "1986.??.??"] [Round "4"] [White "Dehmelt, Karl"] [Black "Kogan, Boris"] [Result "1-0"] [WhiteElo "2355"] [BlackElo "2495"] [Variant "Standard"] [TimeControl "-"] [ECO "B81"] [Opening "Sicilian Defense: Scheveningen Variation, Keres Attack"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g4 { B81 Sicilian Defense: Scheveningen Variation, Keres Attack } h6 7. h4 Nc6 8. Nb3 a6 9. Bg2 h5 10. g5 Nd7 11. Qe2 Qc7 12. f4 g6 13. Be3 b5 14. Nd4 Bb7 15. Nxc6 Bxc6?! { (0.95 → 1.54) Inaccuracy. Qxc6 was best. } (15... Qxc6 16. O-O-O) 16. Nd5 Bxd5?! { (1.37 → 2.11) Inaccuracy. Qb7 was best. } (16... Qb7) 17. exd5 e5 18. f5 gxf5 19. O-O Rc8? { (2.14 → 3.61) Mistake. Qc4 was best. } (19... Qc4 20. Qxc4 bxc4 21. Rxf5 Rb8 22. b3 Be7 23. Raf1 cxb3 24. axb3 O-O 25. Kh2 Rbc8 26. Be4) 20. Rxf5 Qxc2?! { (3.17 → 4.40) Inaccuracy. f6 was best. } (20... f6 21. gxf6) 21. Qf1 Qc4?! { (3.94 → 5.89) Inaccuracy. Rc4 was best. } (21... Rc4 22. Rf2) 22. Rxf7 Be7?! { (5.40 → 8.04) Inaccuracy. Qg4 was best. } (22... Qg4 23. Qf2) 23. Qf5 Qg4 24. Qg6 { Black resigns. } 1-0