[Event "Dortmund-A"]
[Site "Dortmund"]
[Date "1989.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Klaus Bischoff"]
[Black "Ivan Sokolov"]
[ECO "A25"]
[WhiteElo "2505"]
[BlackElo "2580"]
[PlyCount "50"]

1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. e4 d6 6. Nge2 Nd4
7. Nxd4 exd4 8. Ne2 Ne7 9. d3 h6 10. O-O c6 11. b3 O-O 12. Bb2
Qb6 13. Rc1 c5 14. Rc2 Bd7 15. Bc1 Qc7 16. h4 b5 17. cxb5 Bxb5
18. g4 Nc6 19. f4 Qe7 20. h5 Qh4 21. hxg6 fxg6 22. Rf3 Qxg4
23. Rg3 Qh5 24. Rh3 Qg4 25. Rg3 Qh5 1/2-1/2