[Event "RA Tandem"] [Site "Ottawa CAN"] [Date "1985.03.07"] [Round "1"] [White "Dauvergne, Peter"] [Black "Cohen, David"] [Result "1-0"] [ECO "D25"] [EventDate "1985.03.07"] [PlyCount "53"] [EventType "swiss"] [EventRounds "5"] [EventCountry "CAN"] 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 g6 5. Bxc4 Bg7 6. O-O O-O 7. Nc3 Bf5 8. b3 Nc6 9. h3 Qd7 10. Qe2 Rad8 11. Bb5 a6 12. Ne5 Nxd4 13. exd4 Qxd4 14. Nxf7 axb5 15. Nxd8 Rxd8 16. Bb2 Bd3 17. Qe6+ Kh8 18. Rfd1 Ne4 19. Nxe4 Qxb2 20. Ng5 Bd4 21. Nf7+ Kg7 22. Nxd8 Qxf2+ 23. Kh1 Bxa1 24. Qxe7+ Kh6 25. Nf7+ Kg7 26. Ne5+ Kh6 27. Ng4+ 1-0

[Event "RA Tandem"] [Site "Ottawa CAN"] [Date "1985.03.14"] [Round "2"] [White "Cohen, David"] [Black "Braz, Antonio"] [Result "1-0"] [BlackElo "1210"] [ECO "C40"] [EventDate "1985.03.07"] [PlyCount "47"] [EventType "swiss"] [EventRounds "5"] [EventCountry "CAN"] 1. e4 e5 2. Nf3 Bc5 3. Bc4 Qf6 4. Nc3 Ne7 5. d3 O-O 6. Bg5 Qd6 7. Nb5 Bxf2+ 8. Kxf2 Qc5+ 9. Be3 Qb4 10. Nxe5 Na6 11. Qf3 d5 12. exd5 Qxb2 13. Rhf1 Qxe5 14. Kg1 Nf5 15. Bf4 Nh4 16. Bxe5 Nxf3+ 17. Rxf3 c6 18. dxc6 bxc6 19. Nd6 Nb4 20. Nxf7 Nd5 21. Bxd5 cxd5 22. Raf1 Be6 23. Nh6+ gxh6 24. Rg3+ 1-0

[Event "RA Tandem"] [Site "Ottawa CAN"] [Date "1985.03.21"] [Round "3"] [White "Cohen, David"] [Black "Scarabelli, Marie"] [Result "1-0"] [ECO "C41"] [EventDate "1985.03.07"] [PlyCount "89"] [EventType "swiss"] [EventRounds "5"] [EventCountry "CAN"] 1. e4 e5 2. Nf3 d6 3. Bc4 Be6 4. Bxe6 fxe6 5. Nc3 Nf6 6. d3 Nc6 7. Be3 Be7 8. Qd2 Ng4 9. O-O-O Nxe3 10. Qxe3 Bf6 11. g4 h6 12. h4 d5 13. exd5 exd5 14. Nxe5 Qe7 15. Nxc6 bxc6 16. Qxe7+ Bxe7 17. Rde1 Rf8 18. Re2 Rf7 19. g5 O-O-O 20. g6 Bg5+ 21. hxg5 Rff8 22. gxh6 Rh8 23. h7 Kd7 24. f4 Rdf8 25. Rf1 Rf5 26. Re5 Rf6 27. f5 Kd6 28. Re6+ Rxe6 29. fxe6 Kxe6 30. Rf7 a6 31. Rxg7 Rf8 32. Rg8 Rf1+ 33. Nd1 Kd6 34. h8=Q Kc5 35. Qc3+ Kd6 36. Rd8+ Ke7 37. g7 Kxd8 38. g8=Q+ Kd7 39. Qh7+ Kd6 40. Qb4+ c5 41. Qh2+ Kc6 42. Qh6+ Kd7 43. Qg4+ Ke7 44. Qhe6+ Kf8 45. Qgg8# 1-0

[Event "RA Tandem"] [Site "Ottawa CAN"] [Date "1985.03.31"] [Round "4"] [White "Scarabelli, Marie"] [Black "Cohen, David"] [Result "0-1"] [ECO "D00"] [EventDate "1985.03.07"] [PlyCount "66"] [EventType "swiss"] [EventRounds "5"] [EventCountry "CAN"] 1. d4 d5 2. Nc3 Nf6 3. Bd2 e6 4. a3 c5 5. Be3 cxd4 6. Bxd4 Be7 7. Nf3 Nc6 8. g3 b6 9. Nb1 Nxd4 10. Nxd4 Bb7 11. c3 O-O 12. Bg2 Qd7 13. Nf3 Rac8 14. O-O Rfd8 15. Nbd2 Ba6 16. Re1 Qb5 17. b3 Rxc3 18. Nd4 Qd7 19. N2f3 Qc7 20. e3 Rc8 21. b4 Bd3 22. Qd2 e5 23. Bh3 Ne4 24. Qb2 exd4 25. Nxd4 Re8 26. Rad1 Bf6 27. Rxd3 Rxd3 28. Rc1 Rc3 29. Rd1 Bxd4 30. exd4 Rc2 31. Qb3 Nxf2 32. Rf1 Nxh3+ 33. Kh1 Ree2 0-1

[Event "RA Tandem"] [Site "Ottawa CAN"] [Date "1985.04.13"] [Round "5"] [White "Cohen, David"] [Black "St. Pierre, Gaetan"] [Result "1-0"] [ECO "C42"] [EventDate "1985.03.07"] [PlyCount "33"] [EventType "swiss"] [EventRounds "5"] [EventCountry "CAN"] 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 Qe7 6. Be3 g6 7. Bd3 Bf5 8. O-O Bg7 9. Re1 O-O 10. Nbd2 Nxd2 11. Bxd2 Qf6 12. Bg5 Qxg5 13. Nxg5 Bxd4 14. Bxf5 Bxb2 15. Rb1 Bf6 16. Nxf7 Rxf7 17. Be6 1-0