[Event "Canadian op 9th"]
[Site "Vancouver"]
[Date "1971.08.31"]
[Round "8"]
[White "Ervin, Roy C"]
[Black "Wuntschek, S."]
[Result "1-0"]
[ECO "C51"]
[PlyCount "89"]
[EventDate "1971.08.24"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CAN"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bb6 5. a4 a5 6. b5 Nce7 7. Nxe5 d5 8. exd5 Bd4 9. Nxf7 Kxf7 10. c3 Nxd5 11. Qh5+ Ke6 12. Qg4+ Kf7 13. Qxd4 Ngf6 14. 0-0 Re8 15. d3 h6 16. Nd2 Bf5 17. f3 Kg6 18. Ne4 Nb6 19. Nxf6 Qxd4+ 20. cxd4 Kxf6 21. Bf4 Re7 22. Be5+ Kg6 23. g4 Bc8 24. Kg2 Nxc4 25. dxc4 Be6 26. c5 Rf8 27. Kg3 Rd7 28. f4 Bd5 29. h4 Re8 30. f5+ Kf7 31. Rf2 Kg8 32. g5 Rf8 33. g6 Be4 34. Kg4 Bd5 35. Ra3 c6 36. Re3 Bc4 37. bxc6 bxc6 38. Bd6 Rfd8 39. Rb2 Ra8 40. Rb1 Kh8 41. Rbe1 Bg8 42. Re8 Rxe8 43. Rxe8 Rd8 44. Re7 Re8 45. f6 1-0

[Event "Canadian op 9th"]
[Site "Vancouver"]
[Date "1971.08.28"]
[Round "5"]
[White "Zuk, Robert D"]
[Black "Wuntschek, S."]
[Result "1-0"]
[ECO "C87"]
[PlyCount "73"]
[EventDate "1971.08.24"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CAN"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 d6 7. c3 Bg4 8. d3 0-0 9. h3 Bd7 10. Nbd2 Re8 11. Nf1 Bf8 12. Bg5 h6 13. Bh4 Be7 14. Ne3 g6 15. Bc2 g5 16. Bg3 Bf8 17. Nh2 Ne7 18. d4 Ng6 19. dxe5 dxe5 20. Nhg4 Bxg4 21. Nxg4 Nxg4 22. Qxg4 Qf6 23. Bb3 Rad8 24. Rad1 Kg7 25. Rd7 h5 26. Rxd8 hxg4 27. Rxe8 gxh3 28. gxh3 Be7 29. Bd1 Qc6 30. Rc8 Bd6 31. Rd8 Qb5 32. Bb3 Qd3 33. Rd7 Nf4 34. Bxf4 gxf4 35. Rxf7+ Kg6 36. Kh2 Qf3 37. Rg1+ 1-0

[Event "Canadian op 9th"]
[Site "Vancouver"]
[Date "1971.08.26"]
[Round "3"]
[White "Wuntschek, S."]
[Black "Biyiasas, Peter"]
[Result "0-1"]
[ECO "B50"]
[PlyCount "72"]
[EventDate "1971.08.24"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CAN"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Be2 Nc6 5. d3 g6 6. h3 Bg7 7. Be3 0-0 8. Na3 b6 9. Qd2 Bb7 10. Bh6 Qc7 11. Bxg7 Kxg7 12. Nh2 d5 13. exd5 Nxd5 14. Ng4 Qf4 15. Bf3 Rad8 16. 0-0-0 h5 17. Ne3 Ne5 18. Be4 Nxe3 19. fxe3 Bxe4 20. exf4 Nxd3+ 21. Qxd3 Bxd3 22. Rd2 Be4 23. Re2 f5 24. Rhe1 Rfe8 25. Re3 Bxg2 26. Rxe7+ Rxe7 27. Rxe7+ Kf6 28. Rxa7 Bxh3 29. Rb7 Bg4 30. Rxb6+ Kg7 31. Nc4 h4 32. Ne5 h3 33. Rxg6+ Kh7 34. Rxg4 fxg4 35. Nxg4 Rg8 36. Nh2 Rg1+ 0-1

