[Event "Amsterdam IBM-B"]
[Site "Amsterdam NED"]
[Date "1978.07.17"]
[EventDate "?"]
[Round "4"]
[Result "1/2-1/2"]
[White "Cornelis van Wijgerden"]
[Black "Gert Ligterink"]
[ECO "A45"]
[WhiteElo "2435"]
[BlackElo "2440"]
[PlyCount "35"]

1. d4 Nf6 2. Nc3 d5 3. Bg5 c6 4. e3 Qb6 5. Rb1 Bf5 6. Bd3 Bxd3
7. Qxd3 Nbd7 8. Nf3 e6 9. O-O Be7 10. a3 O-O 11. Ne5 Rfe8
12. Nxd7 Nxd7 13. Bxe7 Rxe7 14. Ne2 e5 15. c3 a5 16. Rfc1 a4
17. c4 Qa6 18. Qc2 1/2-1/2