[Event "Chigorin Memorial-06"]
[Site "Sochi"]
[Date "1966.??.??"]
[Round "6"]
[White "Ortega, Lexy"]
[Black "Polugaevsky, Lev"]
[Result "0-1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Nc3 Qc7 7. Be3 Bb4 8. Bd3 Bxc3+ 9.
bxc3 d6 10. O-O Nbd7 11. Nb3 O-O 12. Nd2 b6 13. Rb1 Nc5 14. Bc2 Bb7 15. f3 Rac8 16. Qe1 e5
17. g4 a5 18. Qh4 Nfd7 19. Rf2 Rfe8 20. g5 Nf8 21. Kh1 Bc6 22. Nf1 Ng6 23. Qg3 Rb8 24. h4
Ne6 25. Qh2 b5 26. Ng3 bxc4 27. Rd1 Ngf4 28. Nf5 d5 29. h5 dxe4 30. Nd6 Red8 31. Nxe4
Rxd1+ 32. Bxd1 Rb1 33. Rf1 Bxe4 34. fxe4 Qb7 35. Bxf4 Nxf4 0-1