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Subject: Re: CM8000 vs CM5000

Author: James T. Walker

Date: 22:25:03 04/07/01

Go up one level in this thread


On April 08, 2001 at 01:06:35, Dana Turnmire wrote:

>On April 08, 2001 at 00:56:26, Dana Turnmire wrote:
>
>>  If anyone is interested here are a few of the positions where CM5000 did
>>better than CM8000 on the CCR One Hour test by Larry Kaufman.
>>  To run the test, set the program on infinite with no book.  When you come to
>>the test move simply note the best move after 15" 30" 1min and 2 min.  After
>>each time period if the correct move is being evaluated give it one point. If it
>>has the correct move after 15 seconds but the wrong move at the one minute mark
>>it still gets one point for the 15 second period.  The most points for any one
>>test is 4 and of course 0 points is also possible.
>>  Here are all the positions where CM5000 did better than CM8000 on an AMD
>>k6-2/500/64RAM.
>>
>>Set 4   1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5 5.Bg5 c6 6.Qc2 Be7 7.e3 Nbd7 8.Bd3
>>0-0 9.Nf3 Re8 10.0-0 Nf8 11.Rab1 g6.  White to move. Solution 12.b4!, the
>>minority attack and the point of the previous move.  CM5000 got 4 points, CM8000
>>got 2 points.
>>
>>Set 7   1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.bxa6 Bxa6 6.Nc3 d6 7.Nf3 g6 8.g3
>>Bg7 9.Bg2 0-0 10.0-0 Nbd7 11.Re1 Qb6 12h3.  Black to move.  Solution 12...Rfb8!,
>>so that one rook will be posted on each semi-open file.  CM5000 got 4 points,
>>CM8000 got 0 points!
>>
>>Set 16   1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.0-0 Nxe4 6.d4 b5 7.Bb3.  Black
>>to move.  Solution 7...d5!, returning the pawn in the best way, since 7...exd4
>>will only keep black a pawn up for a few moves.  CM5000 got 1 point, CM8000 got
>>0 points.
>>
>>  I thought maybe the test was biased towards tactical moves but these test sets
>>look more like positional evaluations to me.
>
>  I might add on
>
>  Set 4 Genius 2 on a pentium 133 got 4 points.
>  Set 7 Genius 2 got 3 points.
>  Set 16 Genius 2 got 0 points.

What were the Total scores for the 2 Chessmaster programs?  It seems that is
CM5000 only beat CM8000 on 4 positioins the CM8000 must have done better on many
positions.
Jim



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