[Event "URS-ch39 Final"]
[Site "Leningrad"]
[Date "1971.09.17"]
[Round "3"]
[White "Karpov, Anatoly"]
[Black "Lein, Anatoly"]
[Result "1/2-1/2"]

1. Nf3 d5 2. c4 e6 3. d4 Be7 4. Nc3 Nf6 5. Bg5 h6 6. Bh4 Ne4 7. Bxe7 Qxe7 8. Qc2 O-O 9. e3 Nxc3 10. Qxc3 c6 11. Be2 dxc4 12. Bxc4 b6 13. Be2 Bb7 14. Ne5 Rc8 15. Bh5 g6 16. Bf3 c5 17. Bxb7 Qxb7 18. O-O Nd7 1/2-1/2