[Event "Alekhine Memorial-02"]
[Site "Moscow"]
[Date "1971.11.28"]
[Round "4"]
[White "Tukmakov, Vladimir B"]
[Black "Olafsson, Fridrik"]
[Result "1/2-1/2"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. Be2 e6 6. O-O Be7 7. c4 Nb6 8. Nc3 O-O 9. Be3 Nc6 10. exd6 cxd6 11. d5 exd5 12. Nxd5 Nxd5 13. Qxd5 Bf6 14. Rad1 Bxb2 15. Rb1 Be6 16. Qb5 Bf6 17. Qxb7 Rc8 18. Qa6 1/2-1/2