[Event "IBM"]
[Site "Amsterdam"]
[Date "1975.??.??"]
[Round "2"]
[White "Hamann, Svend"]
[Black "Smejkal, Jan"]
[Result "1/2-1/2"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O Qd6 6. Na3 b5 7. d3 Ne7 8. Be3 Ng6 9. c4 Bg4 10. h3 Bxf3 11. Qxf3 Be7 12. Rfd1 Qf6 13. Qxf6 Bxf6 14. g3 Nf8 15. Nc2 Ne6 16. a4 bxc4 17. dxc4 Rb8 18. b4 Bg5 19. Bxg5 Nxg5 20. Kg2 Ne6 21. Kf3 Ke7 22. Ke3 Rhd8 23. f4 Rxd1 24. Rxd1 c5 25. b5 Ra8 26. fxe5 axb5 27. axb5 Ra4 28. Kd3 Ng5 29. Ra1 Rxa1 30. Nxa1 Nf3 31. Nb3 Nxe5+ 32. Kc3 Kd6 33. Na5 Nd7 34. Nc6 h5 35. h4 f6 36. Kd2 Ne5 37. Na5 Nd7 38. Ke3 g5 39. Nb7+ Ke5 40. Nd8 gxh4 41. gxh4 Nf8 42. Nc6+ Ke6 43. Nd8+ Kd7 44. Nb7 Ne6 45. e5 f5 46. Na5 Ke7 47. Nb3 Kf7 48. Nc1 Nf8 49. Nd3 Ne6 50. Kf3 Ke7 51. Ke3 Kf7 1/2-1/2