[Event "NED-ch31"]
[Site "Leeuwarden"]
[Date "1976.04.19"]
[Round "4"]
[White "Ree, Hans"]
[Black "Timman, Jan H"]
[Result "1/2-1/2"]
[WhiteElo "2420"]
[BlackElo "2550"]
[ECO "A17"]
[Opening "English Opening: Anglo-Indian Defense, Hedgehog System"]

1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. cxd5 exd5 5. d4 Be7 6. Bg5 c6 7. e3 Bf5 8. Bd3 Bxd3 9. Bxf6 Bxf6 10. Qxd3 a5 11. O-O O-O 12. Rac1 Nd7 13. e4 dxe4 14. Nxe4 a4 15. b4 axb3 16. Qxb3 Ra7 17. d5 cxd5 18. Qxd5 b6 19. Rfd1 Qa8 20. h3 1/2-1/2