[Event "Groningen op2"]
[Site "Groningen"]
[Date "1989.??.??"]
[Round "4"]
[White "Ligterink, Gert"]
[Black "Van Rooy, M."]
[Result "1-0"]
[ECO "A57"]
[WhiteElo "2420"]
[PlyCount "51"]
[EventDate "1989.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 c5 4. d5 b5 5. cxb5 a6 6. Nc3 axb5 7. d6 exd6 8. e4 b4 9. Nb5 Qb6 10. Bf4 Ba6 11. a4 Bxb5 12. Bxb5 Be7 13. 0-0 0-0 14. Nd2 Qb7 15. Re1 Nc6 16. Nc4 Nd4 17. Nxd6 Qb6 18. e5 Bxd6 19. exd6 Nxb5 20. axb5 Rxa1 21. Qxa1 Nd5 22. Bh6 Rb8 23. Qa6 Qxa6 24. bxa6 c4 25. Re5 Nf6 26. a7 1-0

