[Event "Toronto Int op"]
[Site "Toronto"]
[Date "1985.07.28"]
[Round "2"]
[White "Brodie, Hugh"]
[Black "Trefiak, John"]
[Result "1/2-1/2"]
[ECO "A03"]
[WhiteElo "1948"]
[BlackElo "1868"]
[PlyCount "125"]
[EventDate "1985.07.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CAN"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. f4 d5 2. e3 g6 3. Nf3 Bg7 4. d4 Nf6 5. Bd3 0-0 6. 0-0 b6 7. c3 Ba6 8. f5 gxf5 9. Bxa6 Nxa6 10. Qd3 Qc8 11. Ng5 Ne4 12. Nh3 e6 13. Nf4 Bf6 14. Nd2 Be7 15. Qe2 Nf6 16. Rf3 Kh8 17. Rh3 Nb8 18. Nf3 Rg8 19. Ne5 Qd8 20. Bd2 Nc6 21. Ned3 Rg5 22. Be1 Qg8 23. Bh4 Rg7 24. Ne5 Qe8 25. Bxf6 Bxf6 26. Nxc6 Qxc6 27. Nh5 Rg6 28. Nxf6 Rxf6 29. Qh5 h6 30. Qg5 Rg6 31. Rxh6+ Kg7 32. Rxg6+ fxg6 33. Qe7+ Kg8 34. Rf1 Rf8 35. Rf3 Rf7 36. Qd8+ Rf8 37. Qg5 Kg7 38. Rh3 Qe8 39. Qh6+ Kf6 40. Qf4 e5 41. dxe5+ Qxe5 42. Qxe5+ Kxe5 43. Rh7 Kd6 44. Rg7 Rf6 45. Kf2 a5 46. Ke2 Re6 47. Kf3 c6 48. b3 Kc5 49. Ra7 g5 50. Rg7 g4+ 51. Kf4 Re4+ 52. Kxf5 Rxe3 53. Kxg4 Rxc3 54. h4 Rc2 55. Kf4 Rf2+ 56. Ke5 d4 57. g4 Re2+ 58. Kf5 Kd6 59. Rg6+ Ke7 60. Rg7+ Kd6 61. Rg6+ Ke7 62. Rg7+ Kd6 63. Rg6+ 1/2-1/2

[Event "Canadian op"]
[Site "Edmonton"]
[Date "1979.07.14"]
[Round "9"]
[White "Trefiak, John"]
[Black "Taylor, Gordon"]
[Result "0-1"]
[ECO "B35"]
[PlyCount "62"]
[EventDate "1979.07.07"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "CAN"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Bc4 Bg7 6. Be3 Nf6 7. Nc3 Qa5 8. 0-0 0-0 9. f3 d6 10. Qd2 Nxd4 11. Bxd4 Qb4 12. b3 Be6 13. a3 Qa5 14. b4 Qc7 15. Ba2 Rac8 16. Rfc1 a6 17. Ne2 Bxa2 18. Rxa2 Qc4 19. c3 e5 20. Be3 d5 21. exd5 Nxd5 22. Rcc2 Rfd8 23. Qc1 Nxe3 24. Qxe3 Rd1+ 25. Kf2 Qh4+ 26. Ng3 Bh6 27. Qxe5 Qxh2 28. f4 Qg1+ 29. Kf3 Rd3+ 30. Kg4 Qh2 31. f5 Rxg3+ 0-1

[Event "Canadian op"]
[Site "Edmonton"]
[Date "1979.07.13"]
[Round "8"]
[White "Buenaventura, F."]
[Black "Trefiak, John"]
[Result "0-1"]
[ECO "A05"]
[PlyCount "116"]
[EventDate "1979.07.07"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "CAN"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d3 g6 4. g3 Bg7 5. Bg2 Nc6 6. c3 Nf6 7. 0-0 0-0 8. Na3 Rb8 9. Re1 b5 10. d4 b4 11. Nc2 bxc3 12. bxc3 Nd7 13. Be3 Qa5 14. Bd2 Rb2 15. a4 Ba6 16. Na3 cxd4 17. cxd4 Qb6 18. Bc3 Rb3 19. Nb5 Rxc3 20. Nxc3 Nxd4 21. Nd5 Nxf3+ 22. Qxf3 Qd8 23. Rab1 Ne5 24. Qe3 Qd7 25. Qb3 e6 26. Ne3 Nd3 27. Red1 Nc5 28. Qa3 Rd8 29. a5 Na4 30. Rdc1 Nc5 31. Nc4 Bd4 32. Nd2 Nd3 33. Bf1 Bxf2+ 34. Kg2 Bc5 35. Qc3 Nxc1 36. Bxa6 Na2 37. Qf6 Nb4 38. Be2 Rc8 39. Rf1 Nc2 40. Kh1 Bd4 41. Qh4 Ne3 42. Rb1 Rc2 43. Nf3 Bb2 44. Ng1 Kg7 45. Qf4 Bd4 46. a6 e5 47. Qf3 Qe6 48. Rb7 Qa2 49. g4 g5 50. h4 Nd1 51. hxg5 Nf2+ 52. Kg2 Nxg4 53. Qxg4 Bxg1 54. Kxg1 Rxe2 55. Rxf7+ Kxf7 56. Qd7+ Kg6 57. Qxd6+ Kh5 58. Qh6+ Kg4 0-1

