Author: JW de Kort
Date: 04:29:37 09/27/05
Go up one level in this thread
On September 27, 2005 at 00:18:15, David Mitchell wrote: >On September 26, 2005 at 19:10:39, Andres Valverde wrote: > >>Hi, >> >>I am building a book file for my little engine. It consist in a text files with >>lines like this : >> >>rr4k1/3nppbp/5np1/q1pPN3/8/2N3PP/PP3PK1/R1BQR3 b - - c0:d7e5 ce:50 >>rr4k1/3nppbp/3p1np1/q1pPP3/8/2N2NPP/PP3PK1/R1BQR3 b - - c0:d6e5 ce:50 >>rr4k1/3nppbp/3p1np1/q1pP4/4P3/2N2NPP/PP3PK1/R1BQR3 w - - c0:e4e5 ce:50 >>rr4k1/2qnbppp/p2pb3/1p2p1Pn/4P2P/1NN1BP2/PPP2Q2/1K1R1B1R w - - c0:f3f4 ce:50 >>rqb2rk1/pp2bppp/2nppn2/1N6/4PP2/2N1B3/PPP1B1PP/R2Q1RK1 w - - c0:a2a4 ce:50 >>rqb1kbnr/pp1ppppp/2n5/1N6/4P3/8/PPP2PPP/RNBQKB1R w KQkq - c0:f1d3 ce:50 >>rqb1kbnr/pp1ppppp/2n5/1N6/4P3/8/PPP2PPP/RNBQKB1R w KQkq - c0:c2c4 ce:33 >>..... >> >>The EPD lines are extracted from PGN files and the "ce:x" code is the % scored >>by side to play. The question is: what is the best opcode for the move? "bm:"? >>"cO" as a comment. I would like to make books that other people could read/write >>with any EPD tool. >> >>Thanks in advance. > >Unfortunately, I'm thick as a brick on book files, but I gather from the above >that Andres will have a different EPD line for EVERY SINGLE POSITION in his >opening book?? "Holy Crap!" I infer the advantage is it detects all transposed >positions, and the disadvantage is it makes for a HUGE file. > >Andres, are you breaking this up into multiple files? > >Dann (and y'all), would you comment a bit on this scheme? I'm guessing that the >text lists of the moves is the most common layout for a book file? Is this also >a popular layout for an opening book, or is it only suitable for small books, >etc.? > >Thanks, >Dave Maybe it is not the best solution or the most clever one but it is workable. My own engine uses the book from Beowulf that also uses a format like the above. With a normal harddisk like mine this is fast enough to make it acceptable, at least for me. regards Jan Willem
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