[Event "Interzonal-08"]
[Site "Palma de Mallorca"]
[Date "1970.11.24"]
[Round "12"]
[White "Ivkov, Borislav"]
[Black "Suttles, Duncan"]
[Result "1/2-1/2"]

1. d4 d6 2. Nf3 g6 3. c4 Bg7 4. Nc3 e5 5. dxe5 dxe5 6. Qxd8+ Kxd8 7. Bg5+ Ke8 8. O-O-O Bd7 9. Nb5 Na6 10. Bd2 Ne7 11. Bc3 Nc6 12. e3 Ke7 13. a3 Rhc8 14. b4 Nab8 15. Bb2 a5 16. Nc3 axb4 17. Nd5+ Ke8 18. axb4 f6 19. Bc3 Be6 20. Kb2 Nd7 21. Be2 Nd8 22. e4 c6 23. Ne3 Nb6 24. Ra1 Bh6 25. Nd2 Na4+ 26. Kc2 Bxe3 27. fxe3 b6 28. Rhb1 1/2-1/2