[Event "IBM"]
[Site "Amsterdam"]
[Date "1968.??.??"]
[Round "9"]
[White "Bronstein, David Ionovich"]
[Black "Ivkov, Borislav"]
[Result "1/2-1/2"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 d6 6. Nbd2 Bb6 7. Bb3 Be6 8. Nc4 h6 9. a4 O-O 10. O-O Re8 11. Bc2 Nd7 12. a5 Bxc4 13. axb6 Be6 14. bxc7 Qxc7 15. d4 Bg4 16. d5 Bxf3 17. Qxf3 Nd4 18. cxd4 Qxc2 19. Bxh6 Nf6 20. Qg3 Nh5 21. Qg4 g6 22. dxe5 Rxe5 23. f3 Qxb2 24. Be3 Re7 25. Qh4 Rc7 26. g4 Nf6 27. Rab1 Qe5 28. Rfd1 Nh7 29. Rbc1 Rxc1 1/2-1/2