[Event "IBM"]
[Site "Amsterdam"]
[Date "1973.??.??"]
[Round "2"]
[White "Marovic, Drazen"]
[Black "Andersson, Ulf"]
[Result "1-0"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 Na6 6. a3 Bxc3+ 7. Qxc3 Nxc5 8. f3 a5 9. e4 d6 10. Be3 Qc7 11. Rd1 e5 12. Qd2 Be6 13. Qxd6 Qxd6 14. Rxd6 Nfd7 15. Rd1 Nb3 16. Ne2 Bxc4 17. Nc3 Bxf1 18. Rxf1 O-O-O 19. Rd5 b6 20. Ke2 Rhe8 21. Nb5 Nf6 22. Nd6+ Kb8 23. Rd3 Re6 24. Rfd1 Nd4+ 25. Bxd4 exd4 26. Rxd4 Rd7 27. Nf5 Rxd4 28. Nxd4 Re8 29. Nf5 g6 30. Nd6 Re7 31. Nc4 Nd7 32. Ne3 Nc5 33. Rd6 Re6 34. Rxe6 fxe6 35. Kd2 Kc7 36. Nc4 Nb7 37. Ne5 Kd6 38. Nd3 Nd8 39. Kc3 Nc6 40. Kc4 Na7 41. e5+ Kc6 42. Nf4 Kd7 43. h4 Ke7 44. Ne2 Kd7 45. Nd4 Ke7 46. g4 Kd7 47. f4 Ke7 48. Nb5 Nc8 49. Nc3 Kd7 50. Ne4 h6 51. Nf6+ Kc6 52. Nh7 b5+ 53. Kd4 h5 54. gxh5 gxh5 55. Nf8 Ne7 56. Nxe6 1-0