[Event "Alekhine Memorial-02"]
[Site "Moscow"]
[Date "1971.12.08"]
[Round "11"]
[White "Balashov, Yuri S"]
[Black "Stein, Leonid"]
[Result "1/2-1/2"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. Nf3 bxc4 5. Nc3 g6 6. e4 d6 7. Bxc4 Bg7 8. e5 dxe5 9. Nxe5 O-O 10. O-O Nfd7 11. Nc6 Nxc6 12. dxc6 Nb6 13. Be2 Qc7 14. Bf3 Ba6 15. Re1 Rad8 16. Qb3 Bc4 17. Qa3 Bd4 18. Be3 e5 19. b4 cxb4 20. Qxb4 Bxe3 21. fxe3 f5 22. Nb5 Bxb5 23. Qxb5 e4 24. Bd1 Rf6 25. Bb3+ Kg7 26. Rac1 Rc8 27. Qa6 1/2-1/2