[Event "Las Palmas-05"]
[Site "Las Palmas"]
[Date "1976.??.??"]
[Round "4"]
[White "Portisch, Lajos"]
[Black "Larsen, Bent"]
[Result "1-0"]
[WhiteElo "2625"]
[BlackElo "2625"]

1. c4 Nf6 2. Nc3 e6 3. Nf3 Bb4 4. Qc2 O-O 5. a3 Bxc3 6. Qxc3 d6 7. b4 e5 8. Bb2 Nc6 9. e3 Ne4 10. Qc2 f5 11. Be2 a5 12. d3 Nf6 13. b5 Ne7 14. c5 b6 15. cxd6 cxd6 16. Rc1 Bb7 17. O-O Rc8 18. Qb1 Qd7 19. a4 Ng6 20. Ba3 Kh8 21. Nd2 Nh4 22. f3 Nd5 23. Rxc8 Rxc8 24. Nc4 Rxc4 25. dxc4 Nxe3 26. Qd3 Nxf1 27. Bxf1 d5 28. cxd5 Bxd5 29. Qe3 e4 30. fxe4 Bxe4 31. Qxb6 h6 32. Qd6 Qc8 33. Bb2 Kh7 34. Qe7 Qg8 35. Qxh4 Qa2 36. Qf2 Qxa4 37. Qa7 1-0