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Subject: Re: Where can I find statistics about tablebases

Author: Tony Werten

Date: 23:09:12 02/01/05

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On February 01, 2005 at 19:03:35, Uri Blass wrote:

>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

wtm: Draws:               19184
wtm: Mate in  28:             3
wtm: Mate in  27:             7
wtm: Mate in  26:            19
wtm: Mate in  25:            64
wtm: Mate in  24:           144
wtm: Mate in  23:           343
wtm: Mate in  22:           562
wtm: Mate in  21:           606
wtm: Mate in  20:           558
wtm: Mate in  19:           658
wtm: Mate in  18:           871
wtm: Mate in  17:          1066
wtm: Mate in  16:          1154
wtm: Mate in  15:          1065
wtm: Mate in  14:          3829
wtm: Mate in  13:          6719
wtm: Mate in  12:          8178
wtm: Mate in  11:          8601
wtm: Mate in  10:          8395
wtm: Mate in   9:          7541
wtm: Mate in   8:          5647
wtm: Mate in   7:          3121
wtm: Mate in   6:          1636
wtm: Mate in   5:           915
wtm: Mate in   4:           422
wtm: Mate in   3:           219
wtm: Mate in   2:            97
wtm: Mate in   1:            40
btm: Lost in   1:             9
btm: Lost in   2:            23
btm: Lost in   3:            64
btm: Lost in   4:           153
btm: Lost in   5:           332
btm: Lost in   6:           812
btm: Lost in   7:          2089
btm: Lost in   8:          4226
btm: Lost in   9:          7180
btm: Lost in  10:          7857
btm: Lost in  11:          7215
btm: Lost in  12:          5843
btm: Lost in  13:          4185
btm: Lost in  14:          2501
btm: Lost in  15:          1026
btm: Lost in  16:          1194
btm: Lost in  17:           902
btm: Lost in  18:           711
btm: Lost in  19:           597
btm: Lost in  20:           436
btm: Lost in  21:           565
btm: Lost in  22:           430
btm: Lost in  23:           292
btm: Lost in  24:           109
btm: Lost in  25:            31
btm: Lost in  26:            14
btm: Lost in  27:             4
btm: Lost in  28:             2
btm: Draws:               35210

Tony



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