[Event "Glasgow op"]
[Site "Glasgow"]
[Date "1973.09.23"]
[Round "4"]
[White "McKay, Roderick M"]
[Black "Huebner, Robert"]
[Result "0-1"]

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d6 6. Re1 Nbd7 7. e4 e5 8. c3 c6 9. Nbd2 Qc7 10. a4 b6 11. Nc4 Rd8 12. Bf1 Bb7 13. dxe5 dxe5 14. Qd6 Qc8 15. Bh3 Ba6 16. Nfd2 Qb7 17. Qa3 Qc7 18. b4 Re8 19. Qb3 Rad8 20. Ba3 Nf8 21. Nf3 h6 22. Bf1 Bc8 23. Rad1 Be6 24. Rxd8 Rxd8 25. Qc2 Ne8 26. Rd1 Rxd1 27. Qxd1 f5 28. exf5 gxf5 29. Bc1 Ng6 30. h4 c5 31. bxc5 bxc5 32. h5 Nf8 33. Nh4 Qf7 34. Qe2 e4 35. Bd2 Nf6 36. Nd6 Qd7 37. Nc4 Qxa4 38. Ne3 Qd7 39. Bh3 f4 40. Bxe6+ Nxe6 41. Ng4 Ng5 42. Ne5 f3 43. Qc4+ Qd5 44. Nf5 Kh7 45. Qxd5 Nxd5 46. Nxg7 Kxg7 47. c4 e3 48. fxe3 Nf6 49. e4 Nfxe4 50. Bxg5 hxg5 51. Nxf3 a5 52. g4 a4 53. Ne1 a3 54. Nc2 a2 55. Kg2 Nd2 56. Na1 Kh6 57. Kf2 Nxc4 58. Ke2 Ne5 59. Kd2 Nxg4 60. Kc2 Ne3+ 61. Kb2 c4 0-1