[Event "Palma de Mallorca Gran Torneo-03"]
[Site "Palma de Mallorca"]
[Date "1967.12.09"]
[Round "11"]
[White "Portisch, Lajos"]
[Black "Ivkov, Borislav"]
[Result "1/2-1/2"]

1. d4 g6 2. c4 Bg7 3. e4 d6 4. Nc3 Nf6 5. f3 O-O 6. Be3 Nc6 7. Nge2 a6 8. Qd2 Rb8 9. Bh6 Bxh6 10. Qxh6 e5 11. O-O-O b5 12. h4 exd4 13. Nxd4 Nxd4 14. Rxd4 Nh5 15. g4 Ng3 16. Rg1 Nxf1 17. Rxf1 Bb7 18. h5 Qf6 19. Qe3 bxc4 20. Rxc4 c5 21. Rd1 Bc6 22. g5 Qe6 23. Nd5 Bxd5 24. Rxd5 Rb6 25. Qd3 Qh3 26. h6 f6 27. Qc3 Qh1+ 28. Rd1 Qh4 29. e5 Qxg5+ 30. f4 Qf5 31. exd6 Rd8 32. d7 Rb7 33. Rxc5 Qxf4+ 34. Kb1 Rbxd7 35. Qb3+ Kf8 1/2-1/2