[Event "NED-ch26"]
[Site "Leeuwarden"]
[Date "1971.04.17"]
[Round "11"]
[White "Andriessen, Wim"]
[Black "Ree, Hans"]
[Result "1/2-1/2"]
[ECO "A22"]
[Opening "English Opening: King's English Variation, Two Knights Variation"]

1. c4 Nf6 2. g3 e5 3. Nc3 Bb4 4. Nf3 e4 5. Nd4 Nc6 6. Nc2 Bxc3 7. dxc3 h6 8. Bg2 O-O 9. O-O Re8 10. b3 d6 11. Ne3 Ne5 12. Qc2 Neg4 13. h3 Nxe3 14. Bxe3 Qe7 15. Rad1 Bf5 16. a4 a5 17. Qc1 Bg6 1/2-1/2