[Event "IBM"]
[Site "Amsterdam"]
[Date "1971.07.27"]
[Round "12"]
[White "Langeweg, Kick"]
[Black "Smyslov, Vassily V"]
[Result "0-1"]

1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 4. Bg2 g6 5. Nc3 Bg7 6. d3 d5 7. cxd5 Nxd5 8. Nxd5 Bxd5 9.
Qa4+ Qd7 10. Qf4 Nc6 11. O-O Rd8 12. Qa4 O-O 13. Rd1 a5 14. Qh4 Bxf3 15. Bxf3 Nd4 16. Qe4
e6 17. Bg5 f6 18. Bf4 g5 19. Bc1 f5 0-1