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Subject: Re: Rebel and Fritz lost ,Junior and shredder won.

Author: Ed Schröder

Date: 15:31:00 04/28/00

Go up one level in this thread

On April 28, 2000 at 15:20:52, Ernst Walet wrote:

>This is what Shredder4 thinks about it.  Although the score is dropping, it
>still would play Rebel´s move after 15 minutes (PIII-450, 128MB hash).
>
>Ernst.
>
>
> 7.01   0:02.53  +0.37   gxf5 exf5 Qd7 Ng5 d5 Bd2 h6 Nf3 (192.209) 75.8
> 7 ->   0:03.53  +0.37   gxf5 exf5 Qd7 Ng5 d5 Bd2 h6 Nf3 (281.386) 79.5
> 8.01   0:08.15  +0.33   gxf5 exf5 Qd7 Ng5 Qb7 Qh3 Bd7 Be3 (657.746) 80.6
> 8 ->   0:10.33  +0.33   gxf5 exf5 Qd7 Ng5 Qb7 Qh3 Bd7 Be3 (846.185) 81.8
> 9.01   0:35.75  +0.34   gxf5 exf5 Ba4 b3 Bd7 Ng5 Qc8 Ng3 h6 Nf3 (2.996.622)
>83.8
> 9 ->   0:41.03  +0.34   gxf5 exf5 Ba4 b3 Bd7 Ng5 Qc8 Ng3 h6 Nf3 (3.465.402)
>84.4
>10.01   1:37.23  +0.09-- gxf5 exf5 Ba4 Ne1 Nd5 Bh6 Bxh6 Qxh6 b3 axb3 c4 Rxa4
>(8.090.297) 83.2
>10.01   2:03.83  +0.09   gxf5 exf5 Qd7 Ng3 Ba4 c4 bxc3 Nh5 cxb2 Qxf6 bxa1Q Qxg7+
>Qxg7 (10.417.524) 84.1
>10 ->   3:18.69  +0.09   gxf5 exf5 Qd7 Ng3 Ba4 c4 bxc3 Nh5 cxb2 Qxf6 bxa1Q Qxg7+
>(16.442.387) 82.7
>11.01   6:06.69   0.00   gxf5 exf5 Qd7 Ng3 Bxf3 Rxf3 Nd5 Nh5 Bd4+ Kh1 a5 Qe4 e6
>fxe6 (30.096.440) 82.0
>11 ->  14:57.32   0.00   gxf5 exf5 Qd7 Ng3 Bxf3 Rxf3 Nd5 Nh5 Bd4+ Kh1 a5 Qe4 e6
>(72.849.984) 81.1

My latest version needs 30 minutes to change its mind from gxf5
to Qb6 and 3 minutes later to e5 which seems to me the best defending
move in this position. Anybody understands why programs tend to gxf5?
The move weakens the king pawn shelter any I am pretty sure all programs
have a (huge?) penalty for that. So there must be a reason why this move
is favored. What's the angle?

Ed

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