[Event "Canadian op 9th"]
[Site "Vancouver"]
[Date "1971.08.31"]
[Round "8"]
[White "Dotten, C."]
[Black "Aspler, Gerald"]
[Result "0-1"]
[ECO "B07"]
[PlyCount "26"]
[EventDate "1971.08.24"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CAN"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Bg5 Bg7 5. f4 0-0 6. Nf3 c5 7. dxc5 Qa5 8. Qd2 dxc5 9. 0-0-0 Be6 10. Kb1 Nxe4 11. Qe3 Nxc3+ 12. bxc3 Bxc3 13. Rd3 Qxa2+ 0-1

[Event "Canadian op"]
[Site "Toronto"]
[Date "1968.09.01"]
[Round "10"]
[White "Dotten, C."]
[Black "Brodie, Hugh"]
[Result "1-0"]
[ECO "C18"]
[PlyCount "77"]
[EventDate "1968.08.24"]
[EventType "swiss"]
[EventRounds "11"]
[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. a3 Bxc3+ 6. bxc3 Ne7 7. Qg4 Nf5 8. Bd3 Qh4 9. Bxf5 Qxg4 10. Bxg4 cxd4 11. cxd4 b6 12. f4 Ba6 13. Be2 0-0 14. Bxa6 Nxa6 15. Ne2 Rac8 16. c3 f6 17. 0-0 Rc4 18. a4 Nc7 19. Bd2 fxe5 20. fxe5 Rxf1+ 21. Kxf1 Kf7 22. Kf2 Ne8 23. Kf3 h6 24. Kg4 Rc7 25. Nf4 g5 26. Nh5 Kg6 27. h4 gxh4 28. Nf4+ Kf7 29. Rf1 Ke7 30. Ng6+ Kd8 31. Kh5 Rc4 32. Kxh6 Rxa4 33. Bg5+ Kd7 34. Nf8+ Kc6 35. Nxe6 Ra2 36. Rf8 Nc7 37. Rc8 Kd7 38. Rxc7+ Kxe6 39. Kg6 1-0

