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Subject: Re: Problem with TT

Author: Grzegorz Sidorowicz

Date: 08:50:20 07/11/03

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>Hi
>
>Probably a long shot, but my program used to be able to solve this position, but
>then after some mods I noticed it failed to find a1b1.
>In my case the explanation was that Null moving was accidentally being switched
>on when it should have realised that there were no major pieces left and
>switched Null moving off.
>
>Does you program do Null moving ? If it does, try switching it off and see if it
>makes a difference ?

Without null moves my program also can't find solution
Output below:
depth time    nodes       score   variation
-------------------------------------------
1     0       2           130     a1a2
2     0       18          130     a1a2 a7a6
3     0       48          105     a1a2 a7b6 a2a1
3     0       92          109     a1b2 a7b6 b2a1
4     0       219         113     a1b2 a7b6 b2c3 b6a6
5     0       428         113     a1b2 a7b6 b2c3 b6c7 c3b3
6     0       889         114     a1b2 a7b6 b2c3 b6c7 c3c4 c7b7
7     0       1874        114     a1b2 a7b6 b2c3 b6c7 c3c4 c7b6 c4b3
8     0       5151        113     a1b2 a7b8 b2c3 b8b7
9     0       11714       113     a1b2 a7b8 b2c3 b8b7 c3b3 b7c7 b3c4
10    0       22903       113     a1b2 a7b8 b2c3 b8b7 c3b3 b7c7 b3c4 c7b6 c4d3
b6c7
11    0       48198       113     a1b2 a7b8 b2c3 b8b7 c3b3 b7c7 b3c4 c7b6 c4d3
b6c7 d3c3
12    0       100795      113     a1b2 a7b8 b2c3 b8b7 c3b3 b7c7 b3c4 c7b6 c4d3
b6c7 d3c3 c7b7
13    0       174559      113     a1b2 a7b8 b2c3 b8b7 c3b3 b7c7 b3c4 c7b6 c4d3
b6c7 d3c3 c7b6 c3b3
14    0       320963      113     a1b2 a7b8 b2c3 b8b7 c3b3 b7c7 b3a2 c7c8 a2a1
c8b8 a1b2 b8c7 b2c3 c7b7
15    1       603424      113     a1b2 a7b8 b2c3 b8b7 c3b3 b7c7 b3a2 c7c8 a2a1
c8b8 a1b2 b8c7 b2c3 c7b6 c3b3
16    3       1311780     113     a1b2 a7b8 b2c3 b8b7 c3b3 b7c7 b3a2 c7c8 a2a1
c8b8 a1b2 b8b7 b2c3 b7c7 c3d3 c7b7
17    6       2533249     113     a1b2 a7b8 b2c3 b8b7 c3b3 b7c7 b3a2 c7c8 a2a1
c8b8 a1b2 b8b7 b2c3 b7a6 c3d3 a6b6 d3c2
18    18      6864512     113     a1b2 a7b8 b2c3 b8b7 c3b3 b7c7 b3a2 c7c8 a2a1
c8b8 a1b2 b8a8 b2c2 a8b7 c2b3
19    37      13493689    113     a1b2 a7b8 b2c3 b8b7 c3b3 b7c7 b3a2 c7c8 a2a1
c8b8 a1b2 b8a8 b2c2 a8b7 c2b3
20    2.7     49017631    113     a1b2 a7a8 b2c2 a8b8 c2b1 b8a8 b1a2 a8a7 a2a1
a7a6 a1b1 a6b6 b1a2 b6a6 a2a1 a6a7
21    3.57    88641036    113     a1b2 a7a8 b2c2 a8b8 c2b1 b8a8 b1a2 a8a7 a2a1
a7a6 a1b1 a6a7 b1c2 a7a8 c2d2 a8b8 d2c3



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