[Event "Costa del Sol-04"]
[Site "Malaga"]
[Date "1964.02.07"]
[Round "6"]
[White "Portisch, Lajos"]
[Black "Lengyel, Levente"]
[Result "1/2-1/2"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 d5 6. a3 Bxc3+ 7. bxc3 O-O 8. Bb2 Nc6 9. Rc1 Qa5 10. Nd2 cxd4 11. cxd4 Ne4 12. cxd5 exd5 13. Bd3 Bf5 14. Bxe4 Bxe4 15. O-O Qb6 16. Nxe4 Qxb2 17. Nc5 Qxa3 18. Ra1 Qb2 19. Qd3 Nb4 20. Qb5 a6 21. Qxb7 Rfb8 22. Qc7 Qe2 23. Rfb1 h6 24. h3 Rb5 25. Ra4 a5 26. Rba1 Nc2 27. R4a2 Rab8 28. Nb3 Qc4 29. Rxc2 Qxb3 30. Rca2 Ra8 31. Rxa5 Rbxa5 32. Rxa5 Rxa5 33. Qxa5 Qb1+ 34. Kh2 Qb8+ 35. g3 Qb3 36. Kg2 g6 37. Qc5 Kg7 38. Qe7 Kg8 39. Qf6 Qb7 40. Qe5 h5 41. Qf6 Kh7 42. Kf3 Qc7 43. g4 hxg4+ 44. Kxg4 Qc8+ 45. Kg5 Qf8 46. h4 Qh6+ 47. Kg4 Qf8 48. h5 Qe8 49. hxg6+ fxg6 50. Kg5 Qd7 51. Qxg6+ Kh8 52. f4 Qg4+ 53. Kh6 Qg5+ 1/2-1/2