[Event "1966 Canadian Open"]  [White "James Sherwin"]  [Black "Larry Evans"]  [Result "0-1"]  [ECO "D40"]  [Annotator "ATH"]  [PlyCount "48"]  [EventDate "1966.??.??"]  [EventType "swiss"]  [EventCountry "CAN"]  [SourceTitle "Chess Chat 1967.03"]  [SourceDate "2005.01.01"]  [SourceVersion "1"]  [SourceVersionDate "2005.01.01"]  [SourceQuality "1"]   1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 d5 5. e3 Be7 6. Nc3 O-O 7. Bd3 (7. cxd5 exd5  8. b4) 7... c5 8. cxd5 (8. O-O) 8... exd5 9. Ne5 (9. O-O $11) 9... Bb7 10. O-O  Nc6 11. Nxc6 Bxc6 12. Rb1 $6 (12. a4 $1 c4 13. Be2 $11) 12... Re8 (12... c4 $1  $15) 13. b4 $6 (13. dxc5 bxc5 14. b4 $11) 13... cxd4 (13... c4 $1 14. b5 $1 (  14. Bc2 b5 $17) 14... Bb7 $15) 14. exd4 Ne4 15. Bb2 $2 (15. Qb3 $1 $11) 15...  Bf6 16. Ne2 $6 (16. b5 Bb7 17. Ne2 g6 $15) 16... Qd7 17. f3 $2 (17. Ng3 Ba4 18.  Qh5 Bb5 $15) 17... Ba4 18. Qe1 ({Slightly better is} 18. Bc2 $17) 18... Nd6 19.  Qg3 $6 (19. Qf2 Bb5 $17) 19... Nc4 20. Bxc4 dxc4 21. d5 $2 (21. Rfe1 Bc2 22.  Rbc1 Bd3 $19 {puts up more resistance}) 21... Bxb2 22. Rxb2 Qxd5 23. Rc1 ({  so does} 23. f4 {but not enough to matter}) 23... Re3 24. Nc3 $2 (24. Qf4 Rae8  25. Kf2 g5 26. Qxc4 Qe5 $19 {postpones the inevitable}) 24... Rxc3 $1 0-1