[Event "Rubinstein Memorial-13"]
[Site "Polanica Zdroj"]
[Date "1975.08.14"]
[Round "7"]
[White "Knaak, Rainer"]
[Black "Ornstein, Axel"]
[Result "1-0"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 Nc6 7. Nge2 a6 8. Rb1 Bd7 9. b4 b5 10. cxb5 axb5 11. d5 Ne5 12. Nd4 e6 13. dxe6 fxe6 14. Bxb5 Bxb5 15. Ndxb5 Nc4 16. Bg5 c6 17. Nd4 Qb6 18. Nce2 d5 19. e5 Nd7 20. a4 Ndxe5 21. a5 Qa7 22. Rb3 Rfe8 23. Bh4 c5 24. Nb5 Qd7 25. bxc5 Rxa5 26. Ned4 Nc6 27. Bf2 Nxd4 28. Nxd4 Rxc5 29. O-O Ra5 30. f4 Ra2 31. Nf3 Rea8 32. Qd3 Ra1 33. Rbb1 R8a3 34. Rb8+ Bf8 35. Qd4 Ra8 36. Rxf8+ 1-0