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Subject: Re: Where can I find statistics about tablebases

Author: Uri Blass

Date: 16:03:35 02/01/05

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On February 01, 2005 at 16:58:27, Uri Blass wrote:

>I find in Hyatt sites some information like
>
>ftp://ftp.cis.uab.edu/pub/hyatt/TB/tbs/kbppkn.tbs
>
>Unfortunately I am interested in statistics about 3 and 4 piece tablebases.
>
>Where can I find similiar statistics about 3 and 4 piece tablebases?
>I plan to write a program to calculate them directly from the tablebases but I
>do not trust my calculation to be correct.


Here is some statistics about kpk(white with the pawn).
I hope no errors.


pawn to move

49468  draws
80    mates in 1
226   mates in 2
502   mates in 3
876   mates in 4
2036  mates in 5
3874  mates in 6
7784  mates in 7
15572  mates in 8
23392  mates in 9
26872  mates in 10
27182  mates in 11
23010  mates in 12
15240  mates in 13
8054   mates in 14
2146   mates in 15
2324   mates in 16
2164   mates in 17
1742   mates in 18
1316   mates in 19
1116   mates in 20
1212   mates in 21
1124   mates in 22
686    mates in 23
288    mates in 24
128    mates in 25
38     mates in 26
14     mates in 27
6      mates in 28


black to move

101156  draws
0       mates
18      mate in 1
46      mate in 2
128     mate in 3
306     mate in 4
664     mate in 5
1654    mate in 6
4328    mate in 7
8692    mate in 8
15712   mate in 9
19026   mate in 10
25028   mate in 11
17378   mate in 12
10180   mate in 13
5520    mate in 14
2826    mate in 15
2952    mate in 16
1916    mate in 17
1422    mate in 18
1194    mate in 19
872     mate in 20
1162    mate in 21
860     mate in 22
584     mate in 23
218     mate in 24
62      mate in 25
28      mate in 26
8       mate in 27
4       mate in 28



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