[Event "Costa del Sol-04"]
[Site "Malaga"]
[Date "1964.02.01"]
[Round "1"]
[White "Portisch, Lajos"]
[Black "Ulvestad, Olaf"]
[Result "0-1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5 h6 5. Bh4 c5 6. d5 exd5 7. cxd5 O-O 8. e3 d6 9. Bd3 Nbd7 10. Ne2 Ne5 11. O-O Ng6 12. Bg3 Nh5 13. f4 Nxg3 14. Nxg3 Bxc3 15. bxc3 f5 16. Qc2 Nh4 17. Rae1 Qc7 18. Qe2 Bd7 19. Qh5 c4 20. Bb1 Qd8 21. e4 fxe4 22. Nxe4 Rf5 23. Qd1 Rf7 24. Kh1 Qf8 25. g3 Nf5 26. Qc2 h5 27. Qe2 h4 28. g4 Nh6 29. f5 Re8 30. h3 Re5 31. Qg2 Qe7 32. Rd1 Kh8 33. Rf4 Rf8 34. Qf2 Ng8 35. g5 Rexf5 36. Qxh4+ Nh6 37. gxh6 g5 38. Rxf5 gxh4 39. Rxf8+ Qxf8 40. Ng5 Bf5 41. Rf1 Be4+ 42. Kg1 Qg8 0-1