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Subject: Re: new FEG update 3.03c

Author: Mike S.

Date: 08:22:24 06/01/03

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On June 01, 2003 at 10:49:57, Aaron Tay wrote:

>It was announced on 14th December 2002 that the chessmaster 9000 endgame
>database has a rare flaw that affected some of the filesets which should be
>regenerated.

The FEG has been updated for the second time, fixing another bug, as Johan de
Koning reported here recently. The download URL remained the same:

ftp://ftp.ubisoft.com/games/chessmaster/other/Feg.zip



The FEG.TXT contains now a list of affected tables (which btw. is much longer
than yours?):

"2002-Nov-18 version 3.03b : KNNK bug fixed.

(...)

  The list of all files affected to some degree is quite long.
  KNNK KBKB KBKN KBKP KNKR KNKB KNKN
  KNNKQ KNNKR KNNKB KNNKN KNNKP KNPKQ KNPKN KNPKP KBKQB KBKQN KBKQP KBKRB
  KBKRN KBKRP KBKBB KBKBN KBKBP KBKNN KBKNP KBKPP KNKQR KNKQB KNKQN KNKRR
  KNKRB KNKRN KNKRP KNKBB KNKBN KNKBP KNKNN KNKNP KPKQR KPKRR KPKRB

(...)

2002-Dec-26 version 3.03c : Transparent Pawn bug fixed.

  Affected files are the ones where both sides have at least a Pawn and
  White has at least a sliding piece. As well as the ones relying on
  them via promotion (KPPKP) or capture (6-man only) or both.
  Regarding 3,4,5-man these are KQPKP, KRPKP, KBPKP, KPPKP."

As a compromise, I generated all 3 and 4-piece CM9K endgame tables again, and
copied the most important 5-piece tables Rook + ? versus Rook (RP/N/B/R-R and
QR-R) from CD #2. (Of course RP-R is the one which is really important among
these, but it's recommendable with CM's tables too I guess, to install the
complete set of sub-endgames which can arise from promotion.) If I didn't
overlook something, these were not affected by the bugs.

Regards,
M.Scheidl



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