Your conjecture seems doubtful to me.Milos wrote:One more thing, you are testing against Crafty book, how do you maintain that both engines leave the book at the same time?jack512 wrote:Full manuscript here: https://drive.google.com/open?id=0B2pvW ... UpkRE0tem8
If that is not maintained than the engine with the longer book will almost always score better not because its book is better, but because it will have more thinking time!
It supposed that the quality of the move is always good.
Suppose that some moves are poor choices. They may do more damage than the time saved.
In my experience, all chess opening books have serious defects. It is simply too expensive to test all interior and leaf nodes to 37 plies or more to ensure good play.
There are many fairly standard openings with gaffes in them that simply get played by rote.
In ten years, our opening books will be 200 Elo stronger than today's books, ans some of that will be due to efforts like the author of this thread.