[Event "Amsterdam IBM"]
[Site "Amsterdam NED"]
[Date "1979.07.12"]
[EventDate "1979.07.12"]
[Round "1"]
[Result "1/2-1/2"]
[White "Jan Hein Donner"]
[Black "Dragutin Sahovic"]
[ECO "A50"]
[WhiteElo "2500"]
[BlackElo "2520"]
[PlyCount "49"]

1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 d5 5. cxd5 Nxd5 6. Nf3 e6
7. e4 Nxc3 8. bxc3 Be7 9. Be3 Nd7 10. Rd1 Qc8 11. Be2 O-O
12. O-O Nf6 13. Bd3 c5 14. Qb1 cxd4 15. cxd4 Ba6 16. Bg5 Bxd3
17. Qxd3 Qb7 18. d5 exd5 19. exd5 Rad8 20. Bxf6 Bxf6 21. d6
Rd7 22. Qa3 Rfd8 23. Rd3 Qc6 24. Rfd1 Qc5 25. Qxc5 1/2-1/2