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Subject: Re: A couple positions from today's ICC tourney games

Author: Robert Hyatt

Date: 06:10:14 01/31/00

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On January 31, 2000 at 00:42:31, Jeremiah Penery wrote:

>Ferret vs. Junior:
>[D]r2q1rk1/1p3ppp/1n1p4/1PbB4/p2pPn2/2P2N1P/1BQ2PP1/4RRK1 w - -
>
>Ferret played Bxb7 here, but I think it was a mistake.  Better I think is cxd4,
>as it doesn't allow black to penetrate.
>
>Crafty vs. LGG
>[D]r6k/P1rb1npp/5q2/3R1p2/1p1Q3P/4P1P1/5P2/R1B2BK1 w - -
>
>Rxd7 looks good here, but Crafty failed (very) low on it and played Qf4.  I
>tried to analyze a bit after Rxd7 Rxd7 Qxd7 Qxa1 Qxf7 Qxc1 Qxf5, and white still
>seemed to be ahead.  Can Rxd7 win, or is there really a problem with it?


There is a big problem with it.  My score went from +4 to about .3 at depth=13,
the move played was not best, but when crafty failed high on Qf4 (the second
move in the move list) it simply could not get a score back in time.  If you
start crafty from scratch, it fails low on Rxd7, and changed to Bb2 which is
also +4.  But in the game, it had already searched a lot before it got here
and the move ordering was different due to hashing.

Rxd7 does seem to be bad however.
>
>Nimzo vs. Crafty
>[D]8/8/1pp5/3k1p1p/Pp1p1P2/1P4PP/2P2K2/8 w - -
>
>Nimzo played Kf3 here and ended up losing.  Ke2 might draw here.  Does it?
>
>What do other programs think of all these.

Hard to say.  A couple of draws were possible, but the real problem came well
before this point (move 42).



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