[Event "Salem, NH 1969"]  [White "Pal Benko"]  [Black "John Curdo"]  [Result "1-0"]  [ECO "A88"]  [Annotator "ATH"]  [PlyCount "81"]  [EventDate "1969.??.??"]  [SourceTitle "StarBase 4.56"]  [SourceDate "2004.11.04"]  [SourceVersion "1"]  [SourceVersionDate "2004.11.04"]  [SourceQuality "2"]   1. c4 f5 2. Nf3 Nf6 3. g3 d6 4. d4 g6 5. b3 Bg7 6. Bb2 O-O 7. Bg2 c6 8. O-O Qc7  (8... Na6 $11) 9. d5 ({Stockfish recommends} 9. Nbd2 c5 10. Nb1 cxd4 11. Nxd4  Nc6 12. Nc3 $14 {which I don't pretend to understand}) 9... a5 (9... Na6 $11)  10. Nc3 Na6 11. Nd4 (11. e3 $5) 11... Bd7 (11... e5 $5) 12. a3 Nc5 13. b4 (13.  Rb1 Rac8 $11) 13... axb4 (13... Nce4 $1 $11) 14. axb4 Nce4 15. Nxe4 (15. Ne6 $5  Nxc3 16. Nxc7 Nxd1 17. Rfxd1 Rac8 18. dxc6 Rxc7 19. cxd7 Nxd7 20. Bxg7 Kxg7 $11  ) 15... fxe4 $6 (15... Nxe4 $11) 16. Qb3 (16. Ne6 $1) 16... cxd5 (16... Rxa1 $5  ) 17. cxd5 (17. Rxa8 Rxa8 $11) 17... Rfc8 $2 (17... Rxa1 18. Rxa1 Ng4 $11) 18.  Rxa8 Rxa8 19. Ne6 (19. Rc1 $1 $16) 19... Bxe6 20. dxe6 Qb6 (20... Qc6 21. Bxf6  Bxf6 22. b5 Qc5 23. Bxe4 $14) 21. Bxf6 Bxf6 22. Bxe4 Qb5 23. e3 (23. Bf3 $5 $14  ) 23... Kg7 24. Rc1 Ra4 25. Rb1 Ra1 $6 (25... b6 26. Bd3 $14) 26. Rxa1 Bxa1 27.  h4 (27. Bd3 $5 Qe5 28. b5 $16) 27... b6 28. Kg2 Bf6 (28... Qe5 $5) 29. Bd5 Kh6  30. Kg1 Kg7 31. Bc4 (31. Bb7 $5) 31... Qe5 32. Bf1 $6 (32. b5 $16) 32... Qa1 $6  (32... d5 $1 33. b5 $14) 33. Qc4 Qe5 34. Qc6 $1 b5 $2 (34... Qxe6 $2 35. b5 $18  ) (34... d5 35. Qxb6 d4 36. exd4 $16) 35. Bxb5 Qb2 $2 (35... d5 36. Bf1 $18)  36. Qe8 Qxb4 37. Qf7+ (37. Bd3 $1 {leads to mate in 20}) 37... Kh6 38. Qf8+ Bg7  39. Qxe7 Qxb5 40. Qg5+ Qxg5 41. hxg5+ 1-0