[Event "Interzonal-06"]
[Site "Amsterdam"]
[Date "1964.05.20"]
[Round "1"]
[White "Ivkov, Borislav"]
[Black "Gligoric, Svetozar"]
[Result "1/2-1/2"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Ndb5 Bb4 7. a3 Bxc3+ 8. Nxc3 d5 9. exd5 Nxd5 10. Bd2 Nxc3 11. Bxc3 Qxd1+ 12. Rxd1 e5 13. Bc4 Bf5 14. Rd2 f6 15. O-O Rd8 16. Rxd8+ Kxd8 17. Rd1+ Kc7 18. Bb3 Rd8 19. Rxd8 Kxd8 20. Kf1 Nd4 21. Bxd4 exd4 22. Ke2 Kc7 23. Kd2 Kd6 24. f4 a5 25. c3 Kc5 26. Bf7 dxc3+ 27. Kxc3 b6 28. b4+ axb4+ 29. axb4+ Kd6 30. Kd4 h6 1/2-1/2