[Event "IBM"]
[Site "Amsterdam"]
[Date "1965.??.??"]
[Round "5"]
[White "Filip, Miroslav"]
[Black "Zuidema, Coen"]
[Result "1/2-1/2"]

1. c4 Nf6 2. d4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 b6 7. Bd3 dxc4 8. Bxc4 Bb7 9. O-O Ne4 10. Bf4 Bd6 11. Bg3 Nd7 12. Qe2 Bxg3 13. hxg3 Qe7 14. Rac1 c5 15. Nxe4 Bxe4 16. Bb5 Rfd8 17. Rfd1 cxd4 18. Nxd4 Nf6 19. Bc6 Bxc6 20. Nxc6 Rxd1+ 21. Qxd1 Qd7 22. Qxd7 Nxd7 23. Nd4 Nc5 24. b4 Nd3 25. Rc4 Kf8 26. a3 a5 27. Rc3 Ne5 28. b5 Rd8 29. Kf1 Rd5 30. Ke2 Ke7 31. a4 Nd7 32. Nb3 f5 33. f3 Nf6 34. Nd4 g6 1/2-1/2