[Event "1966 Canadian Open"]  [White "James Sherwin"]  [Black "Walter Browne"]  [Result "1-0"]  [ECO "D25"]  [Annotator "ATH"]  [PlyCount "81"]  [EventDate "1966.??.??"]  [EventType "swiss"]  [EventCountry "CAN"]  [SourceTitle "Chess Chat 1967.07"]  [SourceDate "2005.01.01"]  [SourceVersion "1"]  [SourceVersionDate "2005.01.01"]  [SourceQuality "1"]   1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 Bg4 5. h3 Bh5 6. Nc3 e6 7. Bxc4 Nbd7 8.  O-O c6 (8... Bb4 $1 9. a3 Bxc3 10. bxc3 Ne4 $11) 9. e4 (9. Be2 $14) 9... Be7 (  9... Bb4 $1 $11) 10. Be2 (10. Bb3 $1 $14) 10... O-O 11. Be3 (11. Bf4 $5) 11...  Qa5 $2 (11... Bxf3 $11) 12. a3 (12. g4 $1) 12... Rfd8 $6 (12... h6 13. Rc1 $14)  13. Qc2 (13. g4 $1 $16) 13... Rac8 14. Rfd1 (14. g4 $14) 14... a6 (14... h6 15.  Rac1 $14) 15. b4 (15. g4 $1 $14 {Stockfish seems obsessed with g4. It keeps  coming up as the best move.}) 15... Qc7 16. Qb3 (16. Rac1 $14) 16... Bxf3 (  16... Bg6 $5 17. Bd3 $14) 17. Bxf3 e5 18. dxe5 (18. Rac1 $14) 18... Nxe5 19.  Be2 Ng6 20. Rac1 Rxd1+ 21. Rxd1 c5 $6 (21... Bd6 $1 $11) 22. Rc1 $6 (22. b5 c4  23. Qb2 $14) 22... c4 $6 (22... cxb4 23. axb4 (23. Nd5 $5 Qxc1+ 24. Bxc1 Rxc1+  25. Kh2 Bd6+ $11) 23... Qd6 $11) 23. Qc2 (23. Qa4 $5 Qe5 $11) 23... b5 $6 (  23... Bd6 $1 $11) 24. Rd1 $6 (24. g3 Bd6 25. f4 $14) 24... Nf4 $6 (24... Bd6 $1  $11) 25. Bf1 Rd8 $6 (25... Ne6 26. g3 $14) 26. g3 (26. Rxd8+ $1 Bxd8 27. a4 Qb8  28. Qa2 Nd3 29. Bxd3 cxd3 30. axb5 axb5 31. Qb1 $14) 26... Ne6 (26... Rxd1 $5)  27. f4 (27. Bg2 $1 Qb8 28. f4 $14) 27... Rxd1 28. Qxd1 Qd7 $2 (28... a5 $1 $11)  29. Qxd7 Nxd7 30. e5 Nc7 ({Slightly better is} 30... g6 31. Bg2 $16) 31. Bg2 f6  $2 (31... a5 $1 32. bxa5 Bxa3 33. Bc6 b4 34. Bxd7 bxc3 35. Ba4 $16) 32. e6 Nf8  33. f5 a5 (33... g6 34. Bf4 Ne8 35. Nd5 $18) 34. bxa5 Bxa3 35. Bb6 (35. Bd5 $1  {is even stronger}) 35... b4 36. Bxc7 (36. Ne2 {is the quick method}) 36...  bxc3 37. Be4 g6 38. g4 gxf5 (38... Kg7 {is irrelevantly better according to  Stockfish}) 39. gxf5 h5 ({Ditto with} 39... Bc5+) 40. Bb6 Nh7 41. h4 (41. a6 {  mates in 12 moves whereas the game continuation takes 14 moves}) 1-0