Author: Gerd Isenberg
Date: 01:08:13 07/16/02
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On July 16, 2002 at 03:27:30, Dann Corbit wrote: >On July 16, 2002 at 03:20:03, Gerd Isenberg wrote: > >>On July 16, 2002 at 00:56:52, Dann Corbit wrote: >> >>>On July 16, 2002 at 00:38:54, K. Burcham wrote: >>>>Dan would you please define in detail, "wrote his own book". >>> >>>Vincent has hand-written his own chess opening book for his program. >>> >>>Nobody else has done this (as far as I know). >>> >>>They generally get a book from a professional book builder (Noomen/Kure/etc) if >>>they are professional programs or perhaps one from Carlos Pesce or someone like >>>that if they are amateur programmers. >>> >>>In any case, book creation by the original author is practically unknown. >> >>I build my own manually since 94 (about 150,000 lines until now). I used chess >>books (BCO, opening monographies like "winning with ...", Informator) and chess >>newspapers. After a framework of most mainlines was finished by this way (in >>about two years), i also used pgn-databases by the following way: Loading a >>game, going to the novelty from programs point of view so far, diciding whether >>i put a few new moves into the book, maybe declaring some moves as passive (=) >>or blunders(?). Also engine analysis was involved, specially if the line was >>active played by IsiChess. There were also some "secret" lines from local chess >>players, and of course feedback from (lost) games. This also implies that good >>moves played by other programs became active part of the IsiChess book. The book >>editor of my former Dos IsiChess is quite sophisticated, able to interactive >>traverse lines back and forth, using a tree view from the current position and a >>list view with lines lead to the current position. >> >>Even after rewriting my program in 2000, most of the book lines seem to fit >>IsiChess playing style quite good. > >How does your Home-built book fare? > >By that, I mean do you ever fall out of book in trouble against the commercial >entrants? Very seldom during the last tournaments, in the early days more often, of course. During the WCCC in Maastricht the scotch line against Shredder was proberbly the worst one (-0.8). In the 2000 IPCCC, the last tournament i played with Dos IsiChess, i lost against Matador in a sharp botwinnik queens gambit line (D44). Dos IsiChess was not able to solve a transposition by finding 0-0-0 itself. It was dead lost a few moves later. Gerd
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