[Event "Chigorin Memorial-13"]
[Site "Sochi"]
[Date "1979.??.??"]
[Round "13"]
[White "Hartston, William R"]
[Black "Psakhis, Lev"]
[Result "1/2-1/2"]
[WhiteElo "2485"]
[BlackElo "2480"]

1. e4 e5 2. Bc4 Nf6 3. d3 c6 4. Bb3 Bc5 5. Nf3 d6 6. Nc3 Bb6 7. Ne2 Nbd7 8. c3 d5 9. Bc2 O-O 10. Ng3 Re8 11. O-O Nf8 12. exd5 cxd5 13. d4 e4 14. Ne5 Ng6 15. Nxg6 hxg6 16. f3 Bc7 17. fxe4 Nxe4 18. Qf3 f5 19. Bb3 Be6 20. Bf4 a5 21. h4 a4 22. Bc2 a3 23. bxa3 Bb6 24. h5 g5 25. Be5 Rf8 26. h6 gxh6 27. Nxe4 dxe4 1/2-1/2