[Event "Portoroz Interzonal"] [Site "Portoroz"] [Date "1958.??.??"] [Round "11"] [White "Petrosian, Tigran V"] [Black "Rossetto, Hector"] [Result "1-0"] [WhiteElo "?"] [BlackElo "?"] [Variant "Standard"] [TimeControl "-"] [ECO "D37"] [Opening "Queen's Gambit Declined: Three Knights Variation"] [Termination "Unknown"] [Annotator "lichess.org"] 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. Nc3 { D37 Queen's Gambit Declined: Three Knights Variation } Be7 5. cxd5 exd5 6. Bf4 c6 7. Qc2 Na6 8. a3 O-O 9. e3 Nc7 10. Bd3 Ne6 11. Be5 g6 12. O-O Ng7 13. b4 a6 14. Bxf6 Bxf6 15. a4 Bf5 16. Bxf5 Nxf5 17. b5 axb5 18. axb5 Qd6 19. bxc6 bxc6 20. Na4 Rfb8 21. Nc5 Qe7 22. Nd3 Qb7 23. Nfe5 Bxe5 24. Nxe5 Rxa1 25. Rxa1 Ne7 26. g3 Qb2 27. Qd1 h5 28. Rc1 Rb6 29. h3 Kg7 30. Kg2 Qa3?! { (0.74 → 1.54) Inaccuracy. Nf5 was best. } (30... Nf5 31. Rc2 Qa3 32. Qd2 Qa8 33. Ra2 Qc8 34. Qa5 Rb7 35. Qa6 Ne7 36. Rc2 Rb8 37. Qxc8) 31. Ra1 Qb2 32. g4 hxg4 33. hxg4 Rb7 34. Rc1? { (2.23 → 0.89) Mistake. Ra8 was best. } (34. Ra8 f6 35. Re8 Ng8 36. Nxc6 Qb5 37. Qc2 Nh6 38. Rc8 Nf7 39. Nd8 Re7 40. Nxf7 Rxf7) 34... Qb5?? { (0.89 → 4.95) Blunder. g5 was best. } (34... g5 35. Nxc6 Ng6 36. Qc2 Nh4+ 37. Kg3 Qxc2 38. Rxc2 Rb1 39. Ne5 Rg1+ 40. Kh2 Rg2+ 41. Kh3) 35. Qf3 f6?? { (3.65 → 9.43) Blunder. Ng8 was best. } (35... Ng8 36. g5 Qb4 37. Qh3 Qe7 38. f4 Qe6 39. Qxe6 fxe6 40. Rxc6 Ne7 41. Rxe6 Nf5 42. Kf3) 36. g5 Nf5 37. gxf6+ Kxf6 38. Rxc6+ Ke7 39. Qf4 { White wins. } 1-0