Author: Kurt Utzinger
Date: 10:53:26 03/18/03
Go up one level in this thread
On March 18, 2003 at 08:01:49, Jorge Pichard wrote:
>On March 17, 2003 at 18:22:45, Kurt Utzinger wrote:
>
>>New game
>>[D]8/kp6/P5p1/2p1p3/2PpP3/3P3Q/4q3/6K1 b - - 0 1
>>
>>Analysis by Shredder 7.04:
>>
>>1...bxa6 2.Qh7+ Kb8
>> -+ (-2.86) Depth: 1/1 00:00:00
>> -+ (-2.42) Depth: 2/7 00:00:00
>>1...Qe3+ 2.Qxe3 dxe3 3.axb7 g5 4.Kf1 Kxb7 5.Ke2 g4 6.Kxe3 Kc6 7.Kd2
>> -+ (-2.52) Depth: 2/7 00:00:00
>> µ (-1.31) Depth: 5/12 00:00:00
>>1...Qe1+ 2.Kg2 Qd2+ 3.Kh1 Qd1+ 4.Kg2 Qg1+ 5.Kxg1 Kb8
>> µ (-1.32) Depth: 5/15 00:00:00
>> -+ (-2.62) Depth: 5/15 00:00:00
>>1...Kxa6 2.Qe6+ b6 3.Qc6 Qg4+ 4.Kf2 Qf4+ 5.Kg2 g5
>> -+ (-2.63) Depth: 5/15 00:00:00
>> -+ (-2.28) Depth: 6/23 00:00:00
>>1...Qe1+ 2.Kg2 Qd2+ 3.Kh1 Qc1+ 4.Kh2 Kxa6 5.Qg2 Qf4+ 6.Kh3 g5 7.Qa2+ Kb6 8.Qb1+
>>Kc7 9.Kg2
>> -+ (-2.29) Depth: 6/23 00:00:00
>> -+ (-2.76) Depth: 12/33 00:00:08 2885kN
>>1...Qe3+ 2.Qxe3 dxe3 3.axb7 Kxb7 4.Kg2 Kb6 5.Kf3 Ka5 6.Kxe3 Kb4 7.Kd2 g5 8.Kc2
>>g4 9.Kd2 g3 10.Ke2 Kc3 11.Ke3 g2
>> -+ (-2.77) Depth: 12/33 00:00:09 3359kN
>> -+ (-3.11) Depth: 18/39 00:02:16 45570kN
>>
>>(Utzinger, MyTown 18.03.2003)
>
>
> I also found out that Shredder Paderborn the upgrade of Shredder 6.0 can find
>the correct moves order. But neither Hiarcs 8 nor any version of Fritz 8 can
>find this logical move. Simply what most humans do under this kind of endgame is
>to visualize the position after the Queens have been trade and black king trying
>to get close to the base of white pawns formation and the White King can't
>proctect the base and the g pawn at the same time.
>
>Pichard.
Hi Jorge
You are right. This is a very difficult position for most chess programs.
And so far I have found no other engine except Shredder to find the best
move. Anyway, I have stored this position for the future.
Kurt
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