[Event "Amsterdam IBM-B"]
[Site "Amsterdam NED"]
[Date "1975.07.11"]
[EventDate "1975.07.08"]
[Round "4"]
[Result "1-0"]
[White "Johannes Eising"]
[Black "Robert G Hartoch"]
[ECO "A10"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "97"]

1. c4 g6 2. d4 Bg7 3. e4 c5 4. d5 d6 5. Nc3 Nf6 6. Bd3 O-O
7. g3 e5 8. g4 Kh8 9. Be3 Ng8 10. Qd2 Nd7 11. h4 Ndf6 12. f3
h5 13. Nge2 hxg4 14. h5 Nxh5 15. Ng3 Ngf6 16. Bg5 Kg8 17. Nxh5
gxh5 18. Rxh5 Nxh5 19. Bxd8 Rxd8 20. Qg5 Nf6 21. O-O-O Bd7
22. fxg4 Nh7 23. Qh5 f6 24. g5 Nxg5 25. Be2 Kf8 26. Bg4 Be8
27. Qh4 Bg6 28. Bh5 Bh7 29. Rf1 Kg8 30. Bg4 Bg6 31. Be6+ Bf7
32. Bxf7+ Nxf7 33. Kc2 Kf8 34. Qh7 Rd7 35. Ne2 Ng5 36. Rxf6+
Bxf6 37. Qxd7 Rd8 38. Qxb7 Nxe4 39. Qxa7 Ng5 40. a4 e4 41. a5
Nf3 42. a6 Nd4+ 43. Kd1 Nf5 44. b3 Ne3+ 45. Kc1 Bg5 46. Kb1
Kg8 47. Qb7 Rf8 48. a7 Rf1+ 49. Nc1 1-0