Zuidema, Coen VS Marovic, Drazen 1968.??.??

[Event "IBM"]
[Site "Amsterdam"]
[Date "1968.??.??"]
[Round "6"]
[White "Zuidema, Coen"]
[Black "Marovic, Drazen"]
[Result "1/2-1/2"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ gxf6 6. Ne2 h5 7. Qd3 Nd7 8. Bd2 Nb6 9. O-O-O Be6 10. Kb1 Qd7 11. Nf4 Bf5 12. Qb3 Qxd4 13. Be2 h4 14. Bc1 Qc5 15. Rhe1 Bh6 16. Be3 Qa5 17. Bh5 Rh7 18. Bg6 Bxf4 19. Bxh7 Be6 20. Bxb6 Qxe1 21. Rxe1 Bxb3 22. axb3 axb6 23. Re4 Bxh2 24. Rxh4 Bd6 25. Bf5 e6 26. Rh8+ Bf8 27. Bg4 Ra5 28. f4 Rd5 29. Kc1 f5 30. Bh5 Rd7 31. c3 Ke7 32. Rg8 Bh6 33. g3 e5 34. Rh8 Bg7 35. Rg8 Bh6 36. Rh8 Rd6 37. Rh7 exf4 38. Rxf7+ Ke6 39. Rh7 Ke5 40. gxf4+ Bxf4+ 41. Kb1 Bg5 42. Rxb7 c5 43. Rg7 Kf4 44. Rg6 Bf6 45. Kc2 Ke4 46. Rg2 f4 47. Rd2 Rxd2+ 48. Kxd2 f3 49. Ke1 Ke3 50. c4 Bxb2 51. Be8 1/2-1/2