Hess, Ralf VS Portisch, Ferenc 1980.07.12

[Event "Dortmunder Schachtage-08"]
[Site "Dortmund"]
[Date "1980.07.12"]
[Round "11"]
[White "Hess, Ralf"]
[Black "Portisch, Ferenc"]
[Result "0-1"]
[WhiteElo "2420"]
[BlackElo "2470"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Nge2 Nc6 7. Bg5 a6 8. Qd2 Re8 9. Rd1 Rb8 10. d5 Ne5 11. Ng3 c6 12. dxc6 bxc6 13. c5 Qa5 14. cxd6 exd6 15. Be2 d5 16. b3 Nh5 17. Nb1 Qxd2+ 18. Nxd2 Nxg3 19. hxg3 a5 20. Kf1 a4 21. exd5 cxd5 22. Rh4 axb3 23. axb3 Nc6 24. Bd3 Nb4 25. Bf4 Nxd3 26. Bxb8 Ba6 27. Ra4 Bb5 28. Nc4 dxc4 0-1