[Event "Match/Nation YUG-URS 28,5-31,5"]
[Site "Belgrade"]
[Date "1961.05.11"]
[Round "2(6)"]
[White "Stein, Leonid"]
[Black "Bertok, Mario"]
[Result "1/2-1/2"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g4 a6 7. g5 Nfd7 8. Bg2 Qc7 9. O-O Nc6 10. Be3 Na5 11. f4 Nc4 12. Bf2 Nxb2 13. Qf3 Nc4 14. Rfe1 Be7 15. Nf5 Bf8 16. Nd5 exd5 17. exd5+ Nde5 18. fxe5 Nxe5 19. Bd4 Bxf5 20. Qxf5 Be7 21. Bxe5 dxe5 22. Qxe5 Qxe5 23. Rxe5 Kd7 1/2-1/2