[Event "Bled 30th Anniversary"]
[Site "Bled"]
[Date "1961.09.29"]
[Round "17"]
[White "Ivkov, Borislav"]
[Black "Portisch, Lajos"]
[Result "1-0"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Qc7 7. Qg4 f5 8. Qg3 Ne7 9. Qxg7 Rg8 10. Qxh7 cxd4 11. Kd1 Bd7 12. Qh5+ Kd8 13. Ne2 Ba4 14. Nf4 Qxe5 15. Qf7 Bd7 16. Bd3 Qd6 17. Re1 e5 18. a4 Be8 19. Qe6 Qxe6 20. Nxe6+ Kd7 21. Nc5+ Kc8 22. Rxe5 Nbc6 23. Re2 Rxg2 24. Bxf5+ Kd8 25. Nxb7+ Kc7 26. Bf4+ Ne5 27. Rxe5 Nxf5 28. Re7+ Kc6 29. Rc7+ Kb6 30. Rb1+ Ka6 31. Rc6+ 1-0