Author: Christophe Theron
Date: 08:59:40 04/04/99
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On April 03, 1999 at 18:30:23, William Bryant wrote:
>Are the results obtained on the LCTII depth dependent?
Is the strength of a program depth dependant?
Yes, of course.
The combinations in the LCT-2 are quite easy, and depth 6-9 is generally enough.
Many programs of 300MHz processors will solve them in less than 30 seconds
(except CMB11 and CMB12, which are almost unsolvable).
I have found that many of the positional problems need more depth (often 9-11).
In the endgame positions you'll need both depth and a lot of knowledge
(especially for FIN08 and FIN09).
>I was rather
>disappointed in the initial score I obtained on the LCTII (score was 2120). I
>don't have Null Moves and was searching 8 to 10 ply on the positional tests, 7
>to 10 ply on the tactical tests, and 11 to 17 ply on the endgame tests.
>
>Is this an indication that the eval needs more work (which of course it does),
>or that Null moves, which should increase the search depth, are more likely to
>increase the strength of the program.
Both.
2120 without null move is already nice (on which processor?). Do you have some
kind of selectivity?
Christophe
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