[Event "Interzonal-06"]
[Site "Amsterdam"]
[Date "1964.05.28"]
[Round "7"]
[White "Stein, Leonid"]
[Black "Pachman, Ludek"]
[Result "1/2-1/2"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Nb8 10. d4 Nbd7 11. c4 c6 12. c5 Qc7 13. cxd6 Bxd6 14. Bg5 exd4 15. Qxd4 c5 16. Qe3 c4 17. Bc2 Re8 18. Bxf6 Nxf6 19. e5 Bb4 20. Nc3 Bb7 21. Qf4 Bxc3 22. bxc3 Bxf3 23. Qxf3 Nd7 24. e6 Nf6 25. a4 Rab8 26. axb5 axb5 27. Qf5 fxe6 28. Rxe6 Rxe6 29. Qxe6+ Qf7 30. Qe5 Qe8 1/2-1/2