[Event "IBM"]
[Site "Amsterdam"]
[Date "1973.??.??"]
[Round "1"]
[White "Planinc, Albin"]
[Black "Smejkal, Jan"]
[Result "1/2-1/2"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. Nbd2 Nc6 13. dxc5 dxc5 14. Nf1 Be6 15. Ne3 Rad8 16. Qe2 c4 17. Nf5 Bxf5 18. exf5 Rfe8 19. Bg5 h6 20. Bxf6 Bxf6 21. Nd2 Ne7 22. Ne4 Nd5 23. Rad1 Be7 24. Ng3 Nf6 25. Rxd8 Rxd8 26. Ne4 Nxe4 27. Qxe4 Rd2 28. g3 Bc5 29. Re2 Rxe2 30. Qxe2 Bb6 31. Kf1 Kf8 32. Qf3 Ke7 33. Ke2 Qc5 34. Qb7+ Kf6 35. Qf3 a5 36. g4 Ke7 37. Qb7+ 1/2-1/2