[Event "IBM-18 Grootmeestergroep B"]
[Site "Amsterdam"]
[Date "1978.07.??"]
[Round "8"]
[White "Christiansen, Larry Mark"]
[Black "Van der Sterren, Paul"]
[Result "1-0"]
[WhiteElo "2490"]
[BlackElo "2400"]

1. Nf3 c5 2. e4 Nc6 3. Bb5 g6 4. O-O Bg7 5. Re1 e5 6. Bxc6 dxc6 7. d3 Qe7 8. Nbd2 Nf6 9. Nc4 Nd7 10. a3 O-O 11. b4 Rd8 12. Qe2 b6 13. Be3 Ba6 14. Nfd2 Qf8 15. Reb1 Re8 16. f3 f5 17. Nb3 cxb4 18. axb4 Bxc4 19. dxc4 fxe4 20. fxe4 Qe7 21. c5 b5 22. Na5 Rac8 23. Rd1 Nb8 24. Rd6 Bf8 25. Qg4 Qg7 26. Rd3 Qf7 27. Bg5 Qe6 28. Qh4 Be7 29. Rh3 Qf7 30. Rf1 Bxg5 31. Qxg5 Qe7 32. Qg4 Rf8 33. Rhf3 Rxf3 34. Rxf3 Rd8 35. h4 Kg7 36. h5 Rf8 37. Rxf8 Qxf8 38. g3 Qd8 39. Qf3 gxh5 40. c3 Qd7 41. Qxh5 Qe7 42. Kg2 Qe6 43. Qg5+ Kf7 44. Nb7 Qe7 45. Nd6+ Kf8 46. Qf5+ Kg7 47. Qg4+ Kf6 48. Qh4+ Ke6 49. Qh3+ 1-0