Originally posted by Stephen King
Everybody agrees that if you use an engine to play chess then you are a cheat. However I would like to know why the many players on this site who admit to using a book or database for the first 20 moves or whatever are not also considered cheats. I often read sentences like 'I was still in book until move 18...'
Surely doing whatever a book or data f him during a match.
Maybe there is a simple explanation for this but I can't think of it.
In a way I think you have a point.
Take this Game 3829842
where until move 11 for white I follow the suggestion of Hannes Langrock in The Modern Morra gambit
to combat the so called Evans Defence or as he calls it the "notorious a6"
- possibly the toughest line for white.
Ok, my opponent blundered badly on move 12, but I have to admit, OTB or in C.C without a book, it is very dubious as to whether I'd see that line for white.
Black to move (resigns)
I would say though that it is absolutely impossible to ban books or db use, purely because that would mean you'd have to throw all chess opening theory out the window!
No more Ruy Lopez to move 10, or Siclian Dragon/Yugoslav Attack...
He's obviously using a book!