[Event "Chigorin Memorial-07"]
[Site "Sochi"]
[Date "1967.??.??"]
[Round "11"]
[White "Lein, Anatoly"]
[Black "Shamkovich, Leonid Alexandrovic"]
[Result "0-1"]

1. c4 c6 2. d4 d5 3. cxd5 cxd5 4. Bf4 Nc6 5. e3 Nf6 6. Nc3 e6 7. Bd3 Bd6 8. Bg5 h6 9. Bh4 Bd7 10. Nf3 Rc8 11. Rc1 a6 12. Bg3 Be7 13. h3 Na5 14. O-O Nc4 15. Qe2 Nd6 16. Ne5 O-O 17. f3 b5 18. a3 Be8 19. Rfd1 Qb6 20. Bh4 Qd8 21. Bb1 Nd7 22. Qc2 f5 23. Bxe7 Qxe7 24. Nd3 Nc4 25. Qf2 Bf7 26. Re1 Qd6 27. Kh1 Nf6 28. Rg1 g5 29. Ba2 Kg7 30. a4 b4 31. Nb1 Bg6 32. Bxc4 dxc4 33. Ne5 Qd5 34. Qe2 Nh5 35. Kh2 f4 36. Rxc4 Ng3 37. e4 Qxe5 38. Qc2 Rxc4 39. Qxc4 Qd6 40. Nd2 Rf7 41. Rc1 h5 42. Nb3 Nxe4 43. fxe4 Bxe4 44. Qc5 Qd5 45. Qxd5 Bxd5 46. Nd2 g4 47. hxg4 hxg4 48. Kg1 Kg6 49. a5 Kf5 50. Nc4 Rh7 51. Nd6+ Kg5 52. Rc8 f3 53. g3 Rh1+ 0-1