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Subject: Book vs no book

Author: Andrew Williams

Date: 16:12:01 09/01/02


Hi,

On Friday I got back from a business trip and saw the discussion going on about
the effect of the opening book. Too tired to think of anything else to test, I
started a match between postmodernist with its big book (made up of Dann
Corbit's games collection) versus postmodernist without a book. To encourage a
bit of randomness, I told both versions to randomly vary the time they used for
searching the first few moves out of book. I have no position at all on the
debate that was going on, but here is some more data anyway:

I played 200 games at 5 minutes + 2 seconds increment. Both sides played with no
pondering on the same Athlon 1200. There were no duplicates amongst the games
(according to Scid; I haven't checked by hand).

The final score from the point of view of the version with the book was:

	+71 =78 -51

With a final score of Withbook 110 - 90 Nobook.


Andrew

PS Irrespective of the significance of the figures given here or elsewhere, I
won't participate in any tournament where an opening book is used without
explicit permission from its creator to use it in the tournament.




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