[Event "North Bay September op"] [Site "North Bay CAN"] [Date "1985.09.20"] [Round "1"] [White "Cohen, David"] [Black "Stewart, Larry"] [Result "1-0"] [WhiteElo "1674"] [BlackElo "1307"] [ECO "A40"] [EventDate "1985.09.20"] [PlyCount "39"] [EventType "swiss"] [EventRounds "4"] [EventCountry "CAN"] 1. d4 c6 2. c4 Nf6 3. Nc3 e5 4. dxe5 Ng4 5. Nf3 Bb4 6. Qb3 Bxc3+ 7. Qxc3 Qb6 8. c5 Qc7 9. h3 Nh6 10. e4 b5 11. Bxh6 gxh6 12. e6 O-O 13. e7 Re8 14. Qf6 Qa5+ 15. Nd2 Qb4 16. Rc1 Na6 17. a3 Qa5 18. Be2 b4 19. Bh5 Bb7 20. Bxf7# 1-0

[Event "North Bay September op"] [Site "North Bay CAN"] [Date "1985.09.21"] [Round "2"] [White "Cohen, David"] [Black "Robinson, Ken"] [Result "1-0"] [WhiteElo "1674"] [BlackElo "1867"] [ECO "D38"] [EventDate "1985.09.20"] [PlyCount "121"] [EventType "swiss"] [EventRounds "4"] [EventCountry "CAN"] 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Bb4 5. Bd2 c5 6. e3 cxd4 7. exd4 O-O 8. Rc1 Nc6 9. a3 Bxc3 10. Bxc3 Ne4 11. Bd3 Nxc3 12. Rxc3 dxc4 13. Bxc4 e5 14. O-O exd4 15. Rc1 Bg4 16. Qd3 Qf6 17. Bd5 Bxf3 18. Qxf3 Qxf3 19. Bxf3 Ne5 20. Bxb7 Rab8 21. Rc7 Rfd8 22. Rd1 a5 23. Kf1 Ng6 24. Rd2 Nf4 25. Ba6 Ne6 26. Rc6 Kf8 27. g3 Ke7 28. Ke2 Rd6 29. Rxd6 Kxd6 30. Bc4 Ke5 31. Kd3 Nc5+ 32. Kc2 f5 33. Re2+ Kf6 34. f4 Rd8 35. Bd3 Rc8 36. Bc4 Rd8 37. Rd2 Rd6 38. b4 axb4 39. axb4 Ne4 40. Rd1 Ke7 41. Ra1 Rd7 42. Ra6 Nd6 43. Bd3 g6 44. b5 Rb7 45. Ra5 Kd7 46. Kb3 Kc7 47. Kb4 Kb6 48. Ra6+ Kc7 49. Kc5 Ne4+ 50. Kxd4 Nf2 51. Rc6+ Kd7 52. Bc4 Ne4 53. Be6+ Ke7 54. b6 Nd6 55. Kd5 Ne8 56. Bc8 Rb8 57. b7 Nf6+ 58. Kc5 Ng4 59. Rc7+ Kd8 60. Rxh7 Rxc8+ 61. Kd6 1-0

[Event "North Bay September op"] [Site "North Bay CAN"] [Date "1985.09.21"] [Round "3"] [White "Stewart, John"] [Black "Cohen, David"] [Result "0-1"] [WhiteElo "1639"] [BlackElo "1674"] [ECO "A00"] [EventDate "1985.09.20"] [PlyCount "52"] [EventType "swiss"] [EventRounds "4"] [EventCountry "CAN"] 1. c3 e5 2. e4 Nf6 3. d3 Nc6 4. Bg5 Be7 5. Nf3 d5 6. Nbd2 Be6 7. Bxf6 Bxf6 8. Qb3 Qd7 9. d4 dxe4 10. Qxb7 Rb8 11. Qa6 exf3 12. Nxf3 exd4 13. Rd1 O-O 14. Bb5 Rb6 15. Qa4 Rfb8 16. Nxd4 Bxd4 17. Rxd4 Qe8 18. Bxc6 Bd7+ 19. Re4 Bxc6 20. Qd4 Qxe4+ 21. Qxe4 Bxe4 22. O-O Rxb2 23. Re1 Rxa2 24. h3 f5 25. f3 Rb1 26. fxe4 Rxe1+ 0-1

[Event "North Bay September op"] [Site "North Bay CAN"] [Date "1985.09.21"] [Round "4"] [White "Trotter, Don"] [Black "Cohen, David"] [Result "1/2-1/2"] [WhiteElo "1544"] [BlackElo "1674"] [ECO "D55"] [EventDate "1985.09.20"] [PlyCount "71"] [EventType "swiss"] [EventRounds "4"] [EventCountry "CAN"] 1. d4 Nf6 2. c4 d5 3. Nc3 e6 4. Nf3 Be7 5. Bg5 h6 6. Bxf6 Bxf6 7. e3 c6 8. Bd3 dxc4 9. Bxc4 Nd7 10. Rc1 O-O 11. O-O Nb6 12. Bd3 Re8 13. Ne4 e5 14. Nxf6+ Qxf6 15. Nxe5 Be6 16. Bb1 Nd7 17. Nxd7 Bxd7 18. Qd3 g6 19. Rfe1 Qg5 20. Rc5 Qe7 21. a4 b6 22. Rh5 Bf5 23. Rxf5 gxf5 24. Qxf5 Qg5 25. Qh7+ Kf8 26. Ba2 Qg7 27. Qf5 Rad8 28. Rd1 c5 29. Qd3 cxd4 30. e4 Qe5 31. f3 Kg7 32. Bd5 Rc8 33. b3 Re7 34. Qxd4 Qxd4+ 35. Rxd4 Rc2 36. Bc4 1/2-1/2