[Event "Sarajevo-07"]
[Site "Sarajevo"]
[Date "1964.04.05"]
[Round "12"]
[White "Hort, Vlastimil"]
[Black "Ivkov, Borislav"]
[Result "1/2-1/2"]

1. c4 Nf6 2. Nf3 g6 3. b4 Bg7 4. Bb2 O-O 5. e3 c6 6. d4 d5 7. Nbd2 Bf5 8. Qb3 a5 9. bxa5 Qxa5 10. Bc3 Qc7 11. Ne5 Nfd7 12. Nxd7 Nxd7 13. cxd5 cxd5 14. Bb5 e5 15. O-O Rfe8 16. Rac1 exd4 17. exd4 Nf6 18. Nf3 Ne4 19. Bb2 Qf4 20. g3 Qg4 21. Rfe1 Nd6 22. Be2 Qh3 23. Bf1 Qg4 24. Be2 Qh3 25. Bf1 Qg4 26. Be2 Qh3 27. Bf1 1/2-1/2