Author: Dann Corbit
Date: 21:47:58 02/03/00
Go up one level in this thread
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
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