[Event "Chigorin Memorial-13"]
[Site "Sochi"]
[Date "1979.??.??"]
[Round "9"]
[White "Hartston, William R"]
[Black "Moehring, Guenther"]
[Result "1/2-1/2"]
[WhiteElo "2485"]
[BlackElo "2400"]

1. d4 Nf6 2. c4 d6 3. Nf3 Bf5 4. Nc3 h6 5. e3 Nbd7 6. Bd3 Bxd3 7. Qxd3 c6 8. O-O e5 9. b3 Be7 10. Bb2 O-O 11. Rad1 Re8 12. dxe5 Nxe5 13. Qe2 Nxf3+ 14. Qxf3 Qa5 15. e4 Rad8 16. Qd3 a6 17. a4 Nd7 18. Qc2 Nc5 19. Ba3 Ne6 20. Rd3 Nf4 21. Rf3 Qg5 22. g3 Nh3+ 23. Kg2 Qg4 24. Qd1 Ng5 25. Rd3 Qh3+ 26. Kg1 Qe6 27. f3 f5 28. exf5 1/2-1/2