[Event "Capablanca Memorial-03"]
[Site "Havana"]
[Date "1964.08.26"]
[Round "1"]
[White "Portisch, Lajos"]
[Black "Darga, Klaus"]
[Result "1-0"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Nf3 Be7 5. Bf4 O-O 6. e3 c5 7. dxc5 Bxc5 8. a3 dxc4 9. Bxc4 Qxd1+ 10. Rxd1 a6 11. O-O b5 12. Ba2 Bb7 13. Ne5 Be7 14. a4 Bb4 15. Rc1 Nc6 16. Nd3 Rfd8 17. Nxb4 Nxb4 18. Bb1 bxa4 19. Nxa4 Nfd5 20. Bg3 Bc6 21. Nc5 Nf6 22. Bc7 Rdc8 23. Ba5 Rab8 24. Rfd1 Be8 25. Rc4 Bb5 26. Rxb4 Rxc5 27. Rbd4 Rd5 28. Rxd5 Nxd5 29. e4 Ne7 30. Ba2 h6 31. f3 Nc6 32. Bc3 Rd8 33. Rxd8+ Nxd8 34. Kf2 Nc6 35. f4 Kh7 36. Ke3 Kg8 37. g3 Kf8 38. g4 Kg8 39. h4 Kf8 40. g5 hxg5 41. hxg5 g6 42. Bd4 Ke7 43. Bc5+ Kd7 44. f5 Ne5 45. Bd4 Kd6 46. Bc3 Nc6 47. Kf4 Bd3 48. fxg6 fxg6 49. Bg7 Ke7 50. Ke3 Bf1 51. Bf6+ Kd6 52. Kf4 Bd3 53. Bb3 Kd7 54. Ke3 Bf1 55. Ba4 Kd6 56. Bg7 Bc4 57. e5+ 1-0