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Subject: Re: Crafty Book Create 60

Author: Pete Galati

Date: 11:09:34 08/30/99

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On August 30, 1999 at 10:48:18, Chris Carson wrote:

>OK, Here is my crafty.rc file:
>
>log on
>learn 000
>hash=6M
>hashp=2M
>computer
>book on
>book random 1
>book width 3
>exit
>
>When I use Crafty 16.x with Winboard 4.03
>with the book.bin/books.bin that Bob built everything
>is fine.  Crafty uses the book moves.  I was
>trying to build Small.txt (renamed to small.pgn).
>
>When I use the small book that I built, Crafty leaves
>book quickly (1.e4, 1.e5, 2.nf3, out of book).
>
>Here is the log from my book create:
>
>book learning disabled
>result learning disabled
>position learning disabled
>hash table memory = 6M bytes.
>pawn hash table memory = 2M bytes.
>playing a computer!
>book file enabled.
>choose from book moves randomly (using weights.)
>choose from 3 best moves.
>
>
>Crafty v16.6
>
>White(1): book create small.pgn 60
>ERROR!  move 7: be7 is illegal (line 1634)
>ERROR!  move 7: be7 is illegal (line 1637)
>ERROR!  move 6: bd7 is illegal (line 1640)
>ERROR!  move 4: bd7 is illegal (line 1643)
>ERROR!  move 7: bc6 is illegal (line 1646)
>ERROR!  move 6: be7 is illegal (line 1649)
>ERROR!  move 6: be7 is illegal (line 1652)
>ERROR!  move 3: bg5 is illegal (line 1655)
>ERROR!  move 3: bg5 is illegal (line 1659)
>ERROR!  move 3: bg5 is illegal (line 1663)
>ERROR!  move 3: bg5 is illegal (line 1667)
>ERROR!  move 3: bg5 is illegal (line 1671)
>ERROR!  move 3: bg5 is illegal (line 1674)
>ERROR!  move 3: bg5 is illegal (line 1678)
>
>
>parsed 137608 moves (4658 games).
>found 14 errors during parsing.
>discarded 0 moves (maxply=60).
>discarded 0 moves (minplayed=0).
>discarded 0 moves (win/lose=0.0%).
>book contains 52012 unique positions.
>deepest book line was 60 plies.
>longest cluster of moves was 17.
>time used:   23.97 cpu     23.97 elapsed.
>White(1): books create start.pgn 60
>
>
>parsed 135 moves (34 games).
>found 0 errors during parsing.
>discarded 0 moves (maxply=60).
>discarded 0 moves (minplayed=0).
>discarded 0 moves (win/lose=0.0%).
>book contains 71 unique positions.
>deepest book line was 8 plies.
>longest cluster of moves was 9.
>time used:    0.10 cpu      0.10 elapsed.
>White(1): quit
>execution complete.
>
>Any suggestions.  Guess it has been a while since
>I built a Crafty Book.  :)
>
>Best Regards,
>Chris Carson

That's not a good file to build a book out of. You'd be better off getting some
GM games from Pitt Chess Archives and making a book out of them. I don't think
you really had to rename that file as a pgn file actually, I'm sure Crafty
doesn't care what the file extention is, it's what's inside the file that
counts.

But I'd never use that small.txt file, for the most part a waste of time in my
opinion.

Pete



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