Portisch, Lajos VS Spassky, Boris Vasilievich 1964.05.26

[Event "Interzonal-06"]
[Site "Amsterdam"]
[Date "1964.05.26"]
[Round "6"]
[White "Portisch, Lajos"]
[Black "Spassky, Boris Vasilievich"]
[Result "0-1"]

1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. Qa4+ c6 5. Qxc4 Bf5 6. Nc3 e6 7. g3 Nbd7 8. Bg2 Bd6 9. O-O O-O 10. Nh4 Bg4 11. h3 Bh5 12. e4 Ne8 13. Be3 Be7 14. Nf3 Nd6 15. Qb3 Bxf3 16. Bxf3 Qb6 17. d5 Qxb3 18. axb3 cxd5 19. exd5 e5 20. Rxa7 Rxa7 21. Bxa7 f5 22. Be2 Rc8 23. Be3 Kf7 24. Nb5 Nf6 25. Nxd6+ Bxd6 26. Ra1 Kg6 27. Bc4 h5 28. Ra7 Rb8 29. Ra5 h4 30. Rb5 hxg3 31. fxg3 Nd7 32. Ra5 Kf6 33. h4 f4 34. gxf4 exf4 35. Bf2 g5 36. hxg5+ Kxg5 37. Kg2 Ne5 38. Bc5 f3+ 39. Kf2 Bxc5+ 40. Rxc5 Kf4 41. Rc7 Ra8 42. Rxb7 Ra2 43. Ke1 Ke3 44. Kd1 Nxc4 45. bxc4 Ra1+ 46. Kc2 f2 47. Rf7 f1=Q 48. Rxf1 Rxf1 49. Kc3 Ke4 50. Kb4 Ke5 51. Kc5 Rf8 0-1