[Event "Keres Memorial-02"]
[Site "Tallinn"]
[Date "1979.02.21"]
[Round "1"]
[White "Knaak, Rainer"]
[Black "Hartston, William R"]
[Result "1-0"]
[WhiteElo "2565"]
[BlackElo "2485"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. Be3 c5 9. Ne2 Nc6 10. O-O b6 11. Rc1 Bb7 12. Qd2 Rc8 13. h4 Na5 14. Bd3 e6 15. h5 cxd4 16. cxd4 Qd7 17. Bh6 Rxc1 18. Rxc1 Rc8 19. Bxg7 Kxg7 20. h6+ Kg8 21. Rxc8+ Qxc8 22. Qg5 Qf8 23. Nf4 Nc6 24. Nh5 Qd6 25. Nf6+ Kh8 26. e5 Qd8 27. Be4 Na5 28. Bxb7 Nxb7 29. Qf4 Na5 30. d5 exd5 31. Nxd5 Kg8 32. e6 fxe6 33. Qe5 Qf8 34. Qxe6+ Kh8 35. Ne7 1-0