[Event "CAN-op"] [Site "Montreal CAN"] [Date "1974.08.04"] [Round "10"] [White "Berry, Jonathan"] [Black "Orton, William"] [Result "1/2-1/2"] [ECO "A36"] [EventDate "1974.07.27"] [PlyCount "152"] [EventType "swiss"] [EventRounds "11"] [EventCountry "CAN"] 1. Nf3 g6 2. c4 Bg7 3. Nc3 c5 4. g3 Nc6 5. Bg2 e6 6. e3 Nge7 7. d4 cxd4 8. Nxd4 Nxd4 9. exd4 d5 10. cxd5 Nxd5 11. Nxd5 exd5 12. O-O O-O 13. Be3 Be6 14. Qb3 Qd7 15. Rfc1 Rfc8 16. Rc3 Rxc3 17. bxc3 Rc8 18. Rb1 b6 19. Rc1 Bf8 20. Bf1 h5 21. h4 Bd6 22. a4 Kg7 23. Bd2 Rc7 24. Ra1 Kh7 25. Qa2 Kg7 26. Rb1 Kh7 27. Rb5 f6 28. Bg2 Qe8 29. Bxd5 Bd7 30. Rb1 Bxa4 31. Re1 Re7 32. Rxe7+ Bxe7 33. Bf7 Qd7 34. Bg8+ Kh8 35. Qf7 Ba3 36. Qxg6 Qg7 37. Bf7 Qxg6 38. Bxg6 Bd1 39. Kf1 Kg7 40. Be8 Kf8 41. Ke1 Kxe8 42. Kxd1 f5 43. Kc2 b5 44. Kb3 Be7 45. c4 bxc4+ 46. Kxc4 Kd7 47. Kd5 Bd6 48. Kc4 a6 49. Kd5 Bc7 50. Kc5 Bd6+ 51. Kb6 Ba3 52. Bf4 Bd6 53. Bd2 Ba3 54. Bf4 Bd6 55. Bh6 Bb4 56. d5 a5 57. Kb5 Kd6 58. Kc4 Kd7 59. Be3 Kd6 60. Bf4+ Kd7 61. Kb5 Be1 62. f3 Bb4 63. g4 fxg4 64. fxg4 hxg4 65. h5 Bd6 66. Bxd6 Kxd6 67. h6 g3 68. h7 g2 69. h8=Q g1=Q 70. Qd8+ Ke5 71. d6 Qb1+ 72. Kxa5 Qa2+ 73. Kb6 Qb3+ 74. Kc7 Qc4+ 75. Kd7 Qe6+ 76. Kc6 Qc4+ 1/2-1/2