[Event "Interzonal-06"]
[Site "Amsterdam"]
[Date "1964.06.17"]
[Round "21"]
[White "Porat, Yosef"]
[Black "Lengyel, Levente"]
[Result "0-1"]

1. d4 Nf6 2. c4 c5 3. Nf3 cxd4 4. Nxd4 e6 5. Nc3 a6 6. Bg5 Nc6 7. e3 Qa5 8. Bxf6 gxf6 9. Be2 Bg7 10. Nb3 Qg5 11. O-O f5 12. f4 Qe7 13. Qd2 O-O 14. Na4 Rd8 15. Nb6 Rb8 16. Rfd1 d6 17. Rac1 Qc7 18. Nd5 Qd7 19. Nb6 Qe7 20. Bf3 Bf8 21. a4 Bd7 22. h3 Be8 23. Kh2 Bg7 24. Rc2 Na7 25. Nd4 Bc6 26. Bxc6 bxc6 27. a5 c5 28. Nf3 Nc6 29. Rg1 Qb7 30. Ra1 h6 31. Ne1 Nb4 32. Rcc1 Qe4 33. Na4 Qb7 34. Nd3 Qc6 35. Nxb4 Rxb4 36. Qc2 Rdb8 37. Ra2 Rb3 38. Ra3 Rxb2 0-1