[Event "Dortmunder Schachtage-08"]
[Site "Dortmund"]
[Date "1980.07.08"]
[Round "7"]
[White "Keene, Raymond"]
[Black "Portisch, Ferenc"]
[Result "1/2-1/2"]
[WhiteElo "2460"]
[BlackElo "2470"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Bg5 Nc6 7. Nge2 a6 8. Qd2 Re8 9. d5 Ne5 10. Ng3 c6 11. Be2 b5 12. cxb5 cxb5 13. b3 b4 14. Nd1 a5 15. Rc1 Ba6 16. O-O a4 17. Nf2 Qa5 18. Bxa6 Rxa6 19. Ne2 axb3 20. axb3 Qa2 21. Nd4 Qxd2 22. Bxd2 Nfd7 23. Bxb4 Rb8 24. Nc6 Nxc6 25. dxc6 Ne5 26. c7 1/2-1/2