[Event "Portoroz Interzonal 1958"] [Site "https://lichess.org/study/i1Sbam2m/DzWbcHf2"] [Round "8"] [White "Bobby Fischer"] [Black "Bent Larsen"] [Result "1-0"] [Annotator "Harry Golombek"] [Variant "Standard"] [ECO "B77"] [Opening "Sicilian Defense: Dragon Variation, Yugoslav Attack, Czerniak Variation"] [UTCDate "2023.05.19"] [UTCTime "17:50:10"] [Source "https://lichess.org/study/i1Sbam2m/DzWbcHf2"] [Orientation "white"] 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6 9. Bc4 Nxd4 10. Bxd4 Be6 11. Bb3 Qa5 12. O-O-O b5 (12... Bxb3 13. cxb3 Rac8 14. Kb1 { gives White a solid queenside formation , which would ensure against any attack there, and he would have the better central position with the threat of Nd5. }) 13. Kb1 b4 14. Nd5 (14. Ne2 Bxb3 15. cxb3 e5 16. Bf2 d5 17. exd5 Rfd8 18. d6 Bf8 { lets Black regains his pawn with the better game. It is important for White to retain control of d5. }) 14... Bxd5 15. Bxd5 (15. exd5 Qb5 16. Rhe1 a5 17. Qe2 Qxe2 18. Rxe2 a4 19. Bc4 Rfb8 20. b3 Kf8 { is equal, as analyzed in an issue of Shakmaty earlier in 1958. No doubt the article was familiar to both players. }) 15... Rac8?! (15... Nxd5 16. Bxg7 Nc3+ 17. bxc3 (17. Bxc3 bxc3 18. Qxc3 Qxc3 19. bxc3 Rfc8 20. Rd3 { is an improvement for White, but his extra pawn is worth little and the game should be drawn. }) 17... Rab8 18. cxb4 Qxb4+ 19. Qxb4 Rxb4+ 20. Bb2 Rfb8 { allows Black to regain his piece with a marked advantage. The text is mentioned in the article, but rightly condemned as inferior. }) 16. Bb3 { This bishop forms a vital part of White's attack, hence the weakness of Black's not exchanging it. } 16... Rc7 17. h4 Qb5 18. h5 Rfc8 (18... Nxh5 19. Bxg7 Nxg7 20. Qh6 Nh5 21. g4 Nf6 22. g5 Nh5 23. Rxh5 gxh5 24. g6 { allows mate. }) (18... gxh5 19. g4!) 19. hxg6 hxg6 20. g4 a5 21. g5 Nh5 22. Rxh5! gxh5 23. g6 e5 (23... e6 24. gxf7+ Kxf7 25. Qf4+) 24. gxf7+ Kf8 25. Be3 d5 26. exd5 Rxf7 27. d6 Rf6 28. Bg5 Qb7 29. Bxf6 Bxf6 30. d7 Rd8 31. Qd6+ 1-0