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H. G. Muller wrote on Sat, Sep 26, 2009 01:28 PM UTC:
Sam: The most obvious difference is that Joker80 likes c2-c4 quite a lot, while ChessV thinks it a pretty poor move.

Mats: I think this technique could be useful to reveal flaws in the array that would cause an unusually large white bias. E.g. essential weaknesses due to undefended Pawns or critical mate threats.

To create an opening book, a better approach would probably be to play a few hundred thousand ultra-fast games, with an engine that randomizes through a root bias of 10 centiPawn or so. This should provide Monte-carlo sampling of the opening tree, fully taking into account strategic effects like those you mention.

With 40 moves/10 sec one could do 120 games/hour on a single CPU. So a quad would make you about 500 games/hr or 12,000 games/day. Keep that up for a month, and a very nice data set would emerge.

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