[Event "Chigorin Memorial-04"]
[Site "Sochi"]
[Date "1964.??.??"]
[Round "10"]
[White "Krogius, Nikolai V"]
[Black "Lein, Anatoly"]
[Result "1/2-1/2"]

1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 h6 6. Bh4 O-O 7. e3 Ne4 8. Bxe7 Qxe7 9. cxd5 Nxc3 10. bxc3 exd5 11. Qb3 Qd6 12. c4 dxc4 13. Bxc4 Nc6 14. Qb2 b6 15. O-O Na5 16. Be2 Bb7 17. Rac1 Bd5 18. Ne5 Rac8 19. Ba6 Rb8 20. Be2 Rfe8 21. Rc2 c5 22. Qa3 Qe6 23. Nd3 cxd4 24. Nf4 Qd7 25. Nxd5 Qxd5 26. Rd2 Nc6 27. Bf3 Qe6 28. Bxc6 Qxc6 29. Rxd4 Rb7 30. Rfd1 Rc7 31. h3 1/2-1/2