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Subject: Re: Initial Position Search Nodes

Author: Vincent Diepeveen

Date: 16:10:40 10/09/00

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On October 09, 2000 at 17:41:40, Steve Maughan wrote:

I did next:
  turn off transpositions and put 'pvmove=0' in hashtable.

So it's doing exactly the same but without transpositions and without
help from best moves out of hashtable:

1      22 (      0,     21)    0.01
       00:00 44 (0) 2 0.00 e2-e4
2     106 (      0,     65)    0.03
       00:00 196 (0) 3 0.12 e2-e4
       00:00 331 (0) 3 0.19 Ng1-f3
       00:00 529 (0) 3 0.33 d2-d4
3     638 (      0,    305)    0.04
       00:00 931 (0) 4 0.00 d2-d4
4    1836 (      0,    781)    0.07
       00:00 3276 (0) 5 0.11 d2-d4
       00:00 5042 (0) 5 0.13 Ng1-f3
5    6940 (      0,   2413)    0.17
       00:00 10993 (0) 6 -0.02 Ng1-f3
       00:00 16769 (0) 6 0.00 d2-d4
6   35325 (      0,  15018)    0.76
       00:01 78668 (0) 7 0.09 d2-d4
7  138186 (      0,  60532)    2.82
       00:03 180174 (0) 8 0.00 d2-d4
8  474445 (      0, 179899)    8.95
       00:15 813811 (0) 9 0.10 d2-d4
9 1109121 (      0, 439433)   21.25
       00:38 1965268 (0) 10 -0.00 d2-d4

So 21.25 seconds and 1109121 nodes to finish 9 ply.

>Bert,
>
>>Maybe you do more in the quiescence search. If you do a lot of check extensions
>>in your quiescence search than this will increase the number of nodes a lot.
>
>Actually I don't do any check extensions in the QSearch.  I think it may be hash
>table and move ordering.
>
>Thanks for the input!
>
>Steve



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