[Event "World Class Ch"] [Site "Vancouver, BC"] [Date "1975.05.19"] [Round "2"] [White "Coughlin, Sinclair"] [Black "Wall, Bill"] [Result "0-1"] [ECO "A05"] [WhiteElo "1475"] [BlackElo "1597"] [Annotator "Wall,Bill"] [PlyCount "92"] [EventDate "1975.??.??"] 1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7 4. g3 {4.c4} O-O 5. Bg2 c6 6. O-O {6.d4} d5 {6.. .a5} 7. d3 {7.c4; 7.e3} Re8 {7...Bf5; 7...Nbd7; 7...a5; 7...Bg4; 7...Ne8; 7... Bg4; 7...Na6} 8. Nbd2 {8.c4; 8.Qd2} Nbd7 {8...Bg4} 9. c4 {9.Rb1; 9.Re1; 9.e4; 9.d4; 9.Ne6; 9.Qb1} e6 {9...e5; 9...b6; 9...Nf8} 10. Rc1 {10.cxd5; 10.d4; 10. Qc2} b6 {10...e5 11.cxd5 Nxd5} 11. cxd5 (11. Rc2) 11... cxd5 12. Ne5 $146 (12. Nd4) 12... Nxe5 13. Bxe5 Ba6 14. Bc7 Qd7 15. Rc2 Rec8 16. Qc1 $2 (16. Be5) 16... Ne8 17. Bf4 Rxc2 18. Qxc2 Rc8 19. Qb1 h6 (19... e5 $1 20. Be3 d4) 20. Nf3 Qb7 (20... g5) 21. Rc1 Kh7 (21... g5) 22. Rc2 g5 23. Rxc8 Qxc8 24. d4+ $2 (24. Bd2) 24... f5 {24...Kg8} 25. Be5 Bxe2 26. Bxg7 (26. Qb2) 26... Bxf3 {26...Kxg7} 27. Be5 Bxg2 28. Kxg2 Qc3 29. Qf1 Qc8 {29...Qa5} 30. g4 (30. Qb5) 30... Kg6 ( 30... a6) 31. gxf5+ (31. Qb5) 31... exf5 32. Qb5 Qe6 33. Qa6 f4 {33...Qd7} 34. h3 {34.f3; 34.Qxa7} g4 {34...Kh5} 35. h4 (35. Kh2 gxh3) 35... Qf5 (35... f3+ $1 36. Kg1 Nf6) 36. Qxa7 Qe4+ 37. Kh2 Qf3 {37...g3} 38. Qxb6+ $4 (38. h5+ Kxh5 39. Qf7+ Kg5 40. Qe7+ Kf5 $11) 38... Kh5 (38... Kf5) 39. Kg1 g3 40. fxg3 fxg3 ( 40... Qxg3+ $1 41. Kf1 Qd3+ 42. Kf2 Qd2+ 43. Kf1 f3) 41. Bxg3 Qxg3+ 42. Kf1 Qf4+ (42... Nd6) 43. Ke2 Nf6 44. a4 (44. Kd1 Ne4) (44. Qe6 Qxd4) 44... Ne4 45. a5 Qf2+ 46. Kd1 Qd2# 0-1

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