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Subject: Re: a test position for chess programs(fritz could not solve it in a game)

Author: Paulo Soares

Date: 14:54:28 04/02/00

Go up one level in this thread


On April 02, 2000 at 07:41:51, blass uri wrote:

>6Q1/8/8/8/1p2p2P/1k6/5PK1/q7 b - - 0 1
>
>This position is from the israeli league
>
>Fritz blundered and played 59...Kb2 when the right move is Kc2
>
>Fritz was lucky when shredder also blundered and played 60.Qc4 when
>60.Qh8+(Qg7+) with 61.Qxa1+ is winning.
>
>chessmaster6000 and Rebel century has no problem to solve it.
>when some programs that use tablebases have problem to solve it.
>
>Uri

Rebel-Tiger understand this position at tourmament control time:
PIII-450, HT=64Mb, default settings

00:00:00.1	0,02	6	54435	Kb2  h5
00:00:00.5	0,00	6	75895	Kb2  h5  Qd1  h6  Qf3+  Kg1  Qd1+  Kg2
00:00:02.3	-0,11	7	288722	Kb2  Qc4  b3  Qxe4  Qc1  Qd4+  Qc3  Qa4
00:00:05.9	-0,04	8	664797	Kb2  Qc4  b3  Qxe4  Qd1  Qf5
00:00:11.6	-0,04	9	1489212	Kb2  Qc4  b3  Qxe4  Qd1  Qf5  Qc2  Qf6+
00:00:20.6	-0,18	10	2780803	Kb2  Qg7+  Kb1  Qxa1+  Kxa1  h5  b3  h6  b2  h7  b1Q
 h8Q+  Ka2  Qd4  Qe1  Kg3
00:00:39.0	-0,18	11	5416469	Kb2  Qg7+  Kb1  Qxa1+  Kxa1  h5  b3  h6  b2  h7  b1Q
 h8Q+  Ka2  Qd4  Qe1  Kg3  Kb3
00:01:14.1	-0,28	12	10301775	Kb2  Qg7+  Kb1  Qxa1+  Kxa1  h5  b3  h6  b2  h7
b1Q  h8Q+  Ka2  Qd4  Qe1  Kg3  Kb3  Kf4
00:02:26.6	-0,26	12	20326155	Kc2
00:03:48.9	-0,04	12	31873628	Kc2  Qc4+  Qc3  Qxe4+  Kc1  Qf4+  Kc2  Qf5+  Kc1
Qg5+
00:06:40.5	-0,12	13	56053422	Kc2  Qc4+  Qc3  Qxe4+  Kc1  Qf4+  Kb1
00:16:17.1	0,00	14	137714853	Kc2  Qc4+  Qc3  Qxe4+  Kc1  Qf4+  Kb1  Qf5+  Kb2
h5  b3  Qe6  Kc1  Qh6+  Kb1  Qg6+  Ka1  Qa6+
00:31:35.4	0,00	15	268321253	Kc2  Qc4+  Qc3  Qxe4+  Kc1  Qf4+  Kb1  Qf5+  Kb2
h5  b3  Qe6  Kc1  Qh6+  Kb1  Qg6+  Ka1  Qa6+

Paulo Soares, from Brazil



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