Author: John Merlino
Date: 18:36:38 04/08/01
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On April 08, 2001 at 17:40:45, Andreas St. wrote: >On April 08, 2001 at 15:27:32, John Merlino wrote: > >>On April 08, 2001 at 07:47:01, Andreas St. wrote: >> >>>Hello, >>> >>>I found a new terrible bug in the patched (1.02) Chessmaster 8000. It concerns >>>the recognition of move-transpositions in Chessmaster. >>>I analysed this with an opening variant with the help of the Tournament Book >>>from Mr Kostick: >>> >>>1.d4 d5 2.c4 c6 3.Nf3 Sf6 4.Nc3 dxc4 5.a4 Bf5 6.e3 * this is well known. >>> >>>CM 6000 is in book and plays e6. Thats normal. CM 8000 (patched) is out of book >>>with the same opening book!!! >>>Another example: >>> >>>1.Nf3 Nf6 2.d4 g6 3.c4 Bg7 4.Nc3 d5 5.Qb3 dxc4 6.Qxc4 >>> >>>CM 6000 is in book and plays 0-0. CM 8000 is "out of book"!!! >>> >>>And now the Amazing: The UNPATCHED CM 8000 is NOT out of book in these both >>>variants with the SAME book!!! SO it means, the patched CM 8000 has a new book. >>>I also found some weeks ago the bug in the opening-Editor of CM 8000 AFTER >>>patching, with makes the editor useless in practice. I told John Merlino about >>>the bug in the editor. >>>If this new bug is connected with the editor-bug, i dont know. >>>But this new bug is very bad. It makes the bad opening books in CM 8000 more >>>bad. >>> >>>I hope, John Merlino reads this and a new patch comes soon. CM 8000 need it! >>> >>>Greets >>> >>>AS >> >>One important question: >> >>Does this only happen with books created with the opening book editor, or does >>it happen with ALL books (even those that came with the program)? >> >>jm > > >Hello, > >I must look if i find moves in the original book. I will email you. But it looks >like a bug.... > >Greetings > >AS I agree that it's probably a bug. The question is whether it is a bug in: a) the code that detects transpositions in a book, b) the code that imports PGN files into a book, or c) the code that saves a book. I'm guessing that it is either b) or c), meaning only user-created books will be affected. Let me know what you find, jm
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