Author: blass uri
Date: 00:52:32 02/04/00
Go up one level in this thread
On February 04, 2000 at 00:47:58, Dann Corbit wrote:
>On February 04, 2000 at 00:11:29, Dann Corbit wrote:
>
>>The object of this exercise (if I understand it correctly) is to prove the
>>checkmate in each case.
>>
>>Actually, it looks to me like the 3rd position is a draw... Here is the eval:
>>22 47.54 ++ 1. Kg5!!
>>22-> 1:05 -0.34 1. Kg5 d5 2. Kf5 Kd6 3. d3 d4 4. Kg6
>> Kc5 5. Kf5 Kd5 6. Kg5 Ke6 7. Kg6 Kd6
>> 8. Kf5 Kd5 <HT>
>>23 1:13 0.00 1. Kg5 d5 2. Kf5 Kd6 3. d3 d4 4. Kg6
>> Kc5 5. Kf5 Kd5 6. Kg5 Ke6 7. Kg6 Kd6
>> 8. Kf5 Kd5
>>23-> 1:19 0.00 1. Kg5 d5 2. Kf5 Kd6 3. d3 d4 4. Kg6
>> Kc5 5. Kf5 Kd5 6. Kg5 Ke6 7. Kg6 Kd6
>> 8. Kf5 Kd5
>>
>>{BIG SNIP}
>>
>>32 61:38 0.00 1. Kg5 d5 2. Kf5 Kd6 3. d3 d4 4. Kg6
>> Kc5 5. Kf5 Kd5 6. Kg5 Ke6 7. Kg6 Kd6
>> 8. Kf5 Kd5
>>32-> 69:56 0.00 1. Kg5 d5 2. Kf5 Kd6 3. d3 d4 4. Kg6
>> Kc5 5. Kf5 Kd5 6. Kg5 Ke6 7. Kg6 Kd6
>> 8. Kf5 Kd5
>>
>>
>>Does Kg5 actually lead to mate, and if so, what is the pv?
>Got one more ply, but crafty still sees only stalemate:
>
> 33 95:03 0.00 1. Kg5 d5 2. Kf5 Kd6 3. d3 d4 4. Kg6
> Kc5 5. Kf5 Kd5 6. Kg5 Ke6 7. Kg6 Kd6
> 8. Kf5 Kd5
> 33-> 110:57 0.00 1. Kg5 d5 2. Kf5 Kd6 3. d3 d4 4. Kg6
> Kc5 5. Kf5 Kd5 6. Kg5 Ke6 7. Kg6 Kd6
> 8. Kf5 Kd5
> time=116:40 cpu=99% mat=-1 n=1806466809 fh=16% nps=258064
> ext-> checks=238284442 recaps=3810995 pawns=3904530 1rep=2955627
>thrt:361379
> predicted=0 nodes=1806466809 evals=320810659
> endgame tablebase-> probes done=4759746 successful=4759746
Kg5 leads only to a draw.
The exercise was to find the right move with the right ideas and not to find
checkmate.
Uri
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