[Event "Leningrad Interzonal"] [Site "Leningrad URS"] [Date "1973.06.17"] [Round "11"] [White "Viktor Korchnoi"] [Black "Svetozar Gligoric"] [Result "1/2-1/2"] [WhiteElo "2640"] [BlackElo "2575"] [Variant "Standard"] [TimeControl "-"] [ECO "E97"] [Opening "King's Indian Defense: Orthodox Variation, Korchnoi Attack"] [Termination "Normal"] [Annotator "lichess.org"] 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Bd2 { E97 King's Indian Defense: Orthodox Variation, Korchnoi Attack } Ne8 10. Ne1 f5 11. Nd3?! { (0.72 → -0.05) Inaccuracy. f3 was best. } (11. f3 Nf6 12. Nd3 a5 13. Qb3 b6 14. Qc2 c6 15. Nf2 f4 16. a4 Bb7 17. b3 h5) 11... Nf6?! { (-0.05 → 0.74) Inaccuracy. fxe4 was best. } (11... fxe4) 12. f3 f4 13. Rc1 g5 14. c5 Ng6 15. cxd6 cxd6 16. Nb5 Rf7 17. Nf2 Bf8 18. Qc2 Bd7 19. Qc7 Ne8 20. Qxd8 Rxd8 21. Nxa7 Ra8 22. Nb5 Rxa2 23. Bc3 Ra8 24. Ra1 Rb8 25. Bb4 Be7 26. Rfc1 h5 27. Rc3 Rf6 28. Rca3 Kg7 29. Nc3 Nc7 30. Ra7 Bd8 31. Kf1 Ne7 32. R7a3 Na6 33. Ba5 Bxa5 34. Rxa5 Nc7 35. Rc1 Nc8 36. Ke1 Rf7 37. b4?! { (0.55 → 0.00) Inaccuracy. Nb1 was best. } (37. Nb1 Ne8 38. Nd2 Ne7 39. Nd3 Rf8 40. Ra7 Nc8 41. Ra3 g4 42. Kf2 Nf6 43. g3 fxg3+) 37... Kf6 38. h3 Rg7 39. Ra2 Nb6 40. Ra5 Nc8 41. Ra2 { The game is a draw. } 1/2-1/2