Author: Shaun Brewer
Date: 09:14:05 08/28/02
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On August 28, 2002 at 11:12:01, Will Singleton wrote: >On August 28, 2002 at 06:31:30, Shaun Brewer wrote: > >>Opening book test results: generated books! >> >>All tests using crafty on two Athlon Tbird 850mz's at 15m + 15s >> >>2600Plus is a pgn database where both players are rated above 2600 >>Database is the Lunsen database >> >>C = 2600Plus.pgn 50 1 50 (winner) >>D = 2600Plus.pgn 50 2 50 >> > >Because it's early and I have a cold, I'm a bit thick. What does 50 2 50 mean? >What's the Lunsen database? Sorry the 50 1 50 is from the crafty book create command: book create 2600Plus.pgn 50 1 50 from crafty help book[s] create [] [maxply] [mp] [wpc]...creates a new book by first removing the old book.bin. it then will parse and add the moves to book.bin (if the book create command was used) or to books.bin (if the books create command was used.) truncates book lines after that many plies (typically 60). will exclude *any* move not appearing times in the input. is the winning percentage. 50 means exclude any book move that doesn't have at least 50% as many wins as losses. The Lunsen database can no longer be found at the link below I belive this is because a new version is due soon. From memory basically this is a database of game played by players rated 2000 elo and above with blitz and other games that would reduce the quality removed. http://www.uib.no/people/pfvaf/chesslib/LunsenBook.htm
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