[Event "Interzonal-06"]
[Site "Amsterdam"]
[Date "1964.06.12"]
[Round "18"]
[White "Benko, Pal C"]
[Black "Porat, Yosef"]
[Result "1-0"]

1. c4 Nf6 2. g3 e6 3. Bg2 d5 4. Nf3 c5 5. cxd5 Nxd5 6. O-O Be7 7. Nc3 Nc6 8. Nxd5 Qxd5 9. d4 Nxd4 10. Nxd4 Qxd4 11. Qc2 O-O 12. Be3 Qf6 13. Be4 h6 14. Bxc5 e5 15. Rfc1 Bxc5 16. Qxc5 Bg4 17. Qe3 Qg5 18. Qxg5 hxg5 19. Bxb7 Rab8 20. Rc7 Rfd8 21. f3 Be6 22. b3 g4 23. fxg4 Rd2 24. Ba6 Bxg4 25. Kf2 Rb6 26. Bc4 Rf6+ 27. Ke3 Rd7 28. Rxd7 Bxd7 29. Rd1 Bc6 30. Rd8+ Kh7 31. Rc8 a6 32. Bxa6 Bd7 33. Bd3+ Bf5 34. Rc5 Bxd3 35. exd3 Rh6 36. Rxe5 Rxh2 37. a4 Rg2 38. Kf3 Rb2 39. Rb5 Rd2 40. Ke4 Rg2 41. a5 1-0