[Event "CAN-ch Highschool"]
[Site "Moncton"]
[Date "1977.??.??"]
[Round "7"]
[White "Barbeau, Sylvain"]
[Black "Cosman, Billy"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "1875"]
[BlackElo "1491"]
[PlyCount "45"]
[EventDate "1977.??.??"]
[EventType "tourn"]
[EventRounds "6"]
[EventCountry "CAN"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. Nf3 d5 2. e3 Nf6 3. b3 Bg4 4. Bb2 Nc6 5. Bb5 e6 6. h3 Bh5 7. 0-0 Bd6 8. c4 a6 9. Bxc6+ bxc6 10. d3 e5 11. Nbd2 0-0 12. Qc2 Re8 13. c5 e4 14. dxe4 Bxf3 15. Nxf3 dxe4 16. Nd4 Bf8 17. Rac1 Qd5 18. Rfd1 Nd7 19. Nb5 Qxc5 20. Nxc7 Qxc2 21. Rxc2 Nc5 22. Nxa8 Rxa8 23. Ba3 1-0

[Event "CAN-ch Highschool"]
[Site "Moncton"]
[Date "1977.??.??"]
[Round "6"]
[White "Cosman, Billy"]
[Black "Beed, Brian"]
[Result "0-1"]
[ECO "A21"]
[WhiteElo "1491"]
[BlackElo "1473"]
[PlyCount "60"]
[EventDate "1977.??.??"]
[EventType "tourn"]
[EventRounds "6"]
[EventCountry "CAN"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Bb4 3. a3 Bxc3 4. bxc3 d6 5. d4 Nc6 6. d5 Nce7 7. Qb3 b6 8. a4 a5 9. e4 Nf6 10. Bd3 0-0 11. Bg5 Ng6 12. Ne2 h6 13. Be3 Ng4 14. Bd2 Qh4 15. Ng3 Nf4 16. Bf1 Ng6 17. Qd1 f5 18. exf5 Rxf5 19. Be3 Nxe3 20. fxe3 Ba6 21. Qd3 Ne7 22. 0-0-0 Rf7 23. Ne4 Raf8 24. g3 Qg4 25. h3 Qd7 26. Qc2 Nxd5 27. cxd5 Rxf1 28. g4 Rxh1 29. Rxh1 Rf1+ 30. Rxf1 Bxf1 0-1

[Event "CAN-ch Highschool"]
[Site "Moncton"]
[Date "1977.??.??"]
[Round "4"]
[White "Cosman, Billy"]
[Black "Cavanagh, Jeff"]
[Result "0-1"]
[ECO "C19"]
[WhiteElo "1491"]
[BlackElo "1547"]
[PlyCount "96"]
[EventDate "1977.??.??"]
[EventType "tourn"]
[EventRounds "6"]
[EventCountry "CAN"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Nf3 b6 6. a3 Bxc3+ 7. bxc3 Ne7 8. Be3 Nf5 9. Qd2 Qc7 10. Bd3 Nxe3 11. Qxe3 c4 12. Be2 Nc6 13. h4 h6 14. h5 Bd7 15. Nh4 0-0-0 16. 0-0 Ne7 17. a4 g5 18. Nf3 a6 19. Nh2 Bc6 20. Ng4 Rdf8 21. Rfb1 Ng8 22. Qf3 Kb7 23. Qe3 a5 24. Qc1 f5 25. exf6 Nxf6 26. Ne5 Ne4 27. Bf3 Nxc3 28. Rb2 Nxa4 29. Rbb1 Nc3 30. Rb2 Rxf3 31. Qe1 Na4 32. Rba2 Rf5 33. Nxc6 Qxc6 34. Rxa4 Re8 35. Rxa5 bxa5 36. Qxa5 Qb6 37. Qa2 Kc7 38. Rb1 Ra8 39. Rxb6 Rxa2 40. Rxe6 Rxc2 41. Rxh6 Rfxf2 42. Rh7+ Kb6 43. h6 Rxg2+ 44. Kf1 Rh2 45. Kg1 Rcg2+ 46. Kf1 c3 47. Rh8 c2 48. Rc8 Rxh6 0-1

[Event "CAN-ch Highschool"]
[Site "Moncton"]
[Date "1977.??.??"]
[Round "2"]
[White "Cosman, Billy"]
[Black "Pajak, John T"]
[Result "0-1"]
[ECO "A25"]
[WhiteElo "1491"]
[BlackElo "1865"]
[PlyCount "66"]
[EventDate "1977.??.??"]
[EventType "tourn"]
[EventRounds "6"]
[EventCountry "CAN"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 e5 3. d3 Nc6 4. g3 d5 5. cxd5 Nxd5 6. Bg2 Be6 7. a3 Qd7 8. Bd2 f6 9. Ne4 h5 10. h4 0-0-0 11. b4 Nd4 12. Nf3 Nxf3+ 13. Bxf3 Be7 14. Nc3 Nxc3 15. Bxc3 Bd5 16. Bxd5 Qxd5 17. f3 g5 18. Qa4 Kb8 19. b5 g4 20. Rf1 Rhg8 21. Bb4 Qd4 22. Rb1 gxf3 23. Rxf3 Qg1+ 24. Kd2 Qxb1 25. Bxe7 Rd4 26. Qc2 Qxb5 27. Rxf6 Rd7 28. Bb4 e4 29. Qb3 Rgd8 30. a4 Qe5 31. Re6 Qf5 32. d4 Rxd4+ 33. Kc2 Rxb4 0-1

[Event "CAN-ch Highschool"]
[Site "Moncton"]
[Date "1977.??.??"]
[Round "3"]
[White "Giovannetti, Mark J"]
[Black "Cosman, Billy"]
[Result "1-0"]
[ECO "A09"]
[WhiteElo "2005"]
[BlackElo "1491"]
[PlyCount "63"]
[EventDate "1977.??.??"]
[EventType "tourn"]
[EventRounds "6"]
[EventCountry "CAN"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 c5 3. c4 d4 4. e3 Nc6 5. exd4 cxd4 6. d3 Bf5 7. Bg2 e6 8. 0-0 Nf6 9. a3 Be7 10. b4 a6 11. Bb2 Ng4 12. Qe2 Bf6 13. Nfd2 Nge5 14. Ne4 Be7 15. h3 h5 16. f4 Nd7 17. Nbd2 Nb6 18. Rac1 g5 19. fxg5 Bxg5 20. Kh1 Be3 21. Rce1 Ke7 22. Bc1 Qc7 23. c5 Nd5 24. Nd6 Bg6 25. Bxd5 exd5 26. Nb3 Kd7 27. Bxe3 dxe3 28. Qxe3 Raf8 29. d4 Kd8 30. Qg5+ Kd7 31. Nd2 Nxd4 32. Re7+ 1-0

[Event "CAN-ch Highschool"]
[Site "Moncton"]
[Date "1977.??.??"]
[Round "5"]
[White "Johnstone, Glenn"]
[Black "Cosman, Billy"]
[Result "1-0"]
[ECO "C21"]
[WhiteElo "1666"]
[BlackElo "1491"]
[PlyCount "87"]
[EventDate "1977.??.??"]
[EventType "tourn"]
[EventRounds "6"]
[EventCountry "CAN"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. d4 exd4 3. Nf3 c5 4. Bc4 Nc6 5. 0-0 Be7 6. Re1 d6 7. c3 dxc3 8. Nxc3 Be6 9. Nd5 Nf6 10. Bf4 Bxd5 11. exd5 Nb8 12. Qa4+ Kf8 13. Re2 Nbd7 14. Rae1 Nb6 15. Qb3 Ng8 16. Nd2 Qc7 17. Qg3 Rd8 18. b3 h6 19. Ne4 Nc8 20. Re3 Nf6 21. Rf3 Nxe4 22. Rxe4 Bf6 23. Bd2 a6 24. b4 Re8 25. Rxe8+ Kxe8 26. b5 axb5 27. Bxb5+ Kf8 28. Ra3 Nb6 29. Ba5 Bd8 30. Qb3 Qe7 31. g3 g6 32. Qb2 f6 33. Bd3 Nxd5 34. Bxd8 Qxd8 35. Qxb7 Qc7 36. Qxd5 Kg7 37. Ra6 Rd8 38. Bc4 h5 39. a4 g5 40. a5 Qe7 41. Rb6 Qe1+ 42. Kg2 Kh6 43. Qf5 Qc3 44. Bd3 1-0

