[Event "Interzonal-06"]
[Site "Amsterdam"]
[Date "1964.06.12"]
[Round "18"]
[White "Ivkov, Borislav"]
[Black "Tal, Mihail"]
[Result "1/2-1/2"]

1. Nf3 c5 2. c4 Nc6 3. g3 g6 4. Bg2 Bg7 5. O-O e6 6. Nc3 Nge7 7. b3 d5 8. cxd5 exd5 9. Bb2 b6 10. d4 Nxd4 11. Nxd4 Bxd4 12. Nxd5 Bxb2 13. Nxe7 Qxe7 14. Bxa8 Bxa1 15. Bc6+ Bd7 16. Qxa1 O-O 17. Bxd7 Qxd7 18. Rd1 Qe7 19. e3 h6 20. h4 Rd8 21. Rxd8+ Qxd8 22. Qe5 a5 23. Qe4 Qd2 24. Qe8+ Kg7 25. Qe5+ Kg8 26. Qe8+ Kg7 27. Qe5+ Kg8 28. Qe8+ 1/2-1/2