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Subject: Re: Ikarus vs Rybka (Update Diagram again)

Author: Günther Simon

Date: 03:46:35 12/30/05

Go up one level in this thread


On December 30, 2005 at 06:41:20, Uri Blass wrote:

>On December 30, 2005 at 06:37:25, Gilles Garrigues wrote:
>
>>On December 30, 2005 at 06:34:11, Ryan B. wrote:
>>
>>>On December 30, 2005 at 06:27:05, Rick Hagen wrote:
>>>
>>>>On December 30, 2005 at 06:24:14, Günther Simon wrote:
>>>>
>>>>>On December 30, 2005 at 06:18:02, Rick Hagen wrote:
>>>>>
>>>>>>
>>>>>>[D]1k3rr1/pp6/2pR4/4Pp2/5P2/4N3/7P/5N1K b - - 0 38
>>>>>
>>>>>Still a tough task for Black even to save a draw here.
>>>>>f5 will fall and Blacks passers are hard to support
>>>>>and slower than Whites future passers.
>>>>>May be it is already dead lost, _if_ Black doesn't
>>>>>start running the a-pawn immediately?
>>>>>
>>>>>Guenther
>>>>
>>>>Consensus on Playchess is white screwed up...
>>>>
>>>>[D]1k1r2r1/1p6/2pR4/p3PN2/5P2/4N3/7P/7K b - - 0 40
>>>
>>>They are right, white should have won but now it will be a draw now.
>>
>>Well not an obvious draw. Deep Shredder 9 gives +1.5 for white !?
>
>Rybka gives more than  +1 for black
>
>
>[D]r7/1pk5/2pN4/4P3/5P2/p7/2N3KP/8 w - -
>
> 11.01	 0:01 	-0.84 	45.f5 a2 46.f6 Kd7 47.Kf3 Ke6 48.f7 Rh8 49.Ke4 Ke7
>(239.653) 167
> 12.01	 0:03 	-0.87 	45.f5 a2 46.f6 b5 47.Kf3 b4 48.f7 Kd7 49.Na1 Ke7 (516.787)
>165
> 13.01	 0:07 	-0.92 	45.f5 a2 46.f6 Kd7 47.Kf3 b5 48.Ke4 Ra4+ 49.Kd3 a1Q
>(1.180.353) 161
> 14.01	 0:13 	-1.06 	45.f5 a2 46.f6 Kd7 47.Kf3 b5 48.Ke4 Ra4+ 49.Ke3 a1Q
>(2.167.589) 166

2 bad moves by Ikarus, Nc2 was not necessary yet, same for Kg2?
In a pawn race every single tempo is significant for win/draw/loss.
It should have played f5 as soon as possible.

Guenther



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