[Event "Ontario op"]
[Site "Kingston"]
[Date "1965.??.??"]
[Round "?"]
[White "Grimshaw, David"]
[Black "Butler, W."]
[Result "1-0"]
[ECO "B08"]
[PlyCount "25"]
[EventDate "1965.05.22"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "CAN"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. h3 Nf6 5. Nc3 0-0 6. Be3 c5 7. dxc5 Qa5 8. Nd2 Qb4 9. Rb1 a6 10. a3 Qa5 11. Nc4 Qc7 12. cxd6 exd6 13. Nb6 1-0

[Event "Illinois op"]
[Site "Illinois"]
[Date "1965.??.??"]
[Round "?"]
[White "Marchand, Erich Watkinson"]
[Black "Butler, W."]
[Result "1/2-1/2"]
[ECO "A42"]
[PlyCount "77"]
[EventDate "1965.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. c4 g6 2. e4 Bg7 3. d4 d6 4. Nc3 Nc6 5. d5 Nd4 6. Be3 e5 7. dxe6 Nxe6 8. Nf3 Ne7 9. Be2 0-0 10. Nd4 Nc6 11. Nc2 Nc5 12. f3 f5 13. exf5 Bxf5 14. Nd4 Nxd4 15. Bxd4 Nd3+ 16. Bxd3 Bxd4 17. Bxf5 Bxc3+ 18. bxc3 Rxf5 19. 0-0 Qg5 20. Qd4 b6 21. f4 Qf6 22. g4 Qxd4+ 23. cxd4 Ra5 24. f5 gxf5 25. gxf5 Re8 26. Rf4 Ra4 27. d5 Re2 28. Kh1 Raxa2 29. Rg1+ Kf7 30. Rh4 Kf6 31. Rf1 Rac2 32. Rxh7 Rxc4 33. Rh6+ Kf7 34. f6 Rcc2 35. Rh7+ Kg8 36. Rh6 Rf2 37. Rg1+ Kf8 38. Re1 Rce2 39. Rg1 1/2-1/2

[Event "Illinois op"]
[Site "USA"]
[Date "1964.??.??"]
[Round "?"]
[White "Butler, W."]
[Black "Jankauskas, Kazys"]
[Result "1-0"]
[ECO "D16"]
[PlyCount "69"]
[EventDate "1964.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Na6 6. e3 Bg4 7. Bxc4 e6 8. h3 Bh5 9. 0-0 Nb4 10. Qe2 Be7 11. Rd1 h6 12. e4 0-0 13. Be3 Qc7 14. Rac1 Nd7 15. Bb3 Qa5 16. d5 exd5 17. g4 Bg6 18. exd5 c5 19. Bxh6 Rfe8 20. Be3 a6 21. d6 Bd8 22. Nd5 Rb8 23. Nf4 Bh7 24. Qc4 Rf8 25. Nh5 b5 26. axb5 axb5 27. Qc3 Nf6 28. Bxc5 Nxh5 29. Bxb4 Qa8 30. Bd5 Nf4 31. Bxa8 Ne2+ 32. Kf1 Nxc3 33. Rxc3 Rxa8 34. d7 f5 35. Bxf8 1-0

