Author: Shep
Date: 00:22:54 08/11/99
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On August 10, 1999 at 11:39:27, Brian Smith wrote: >Well, if Maximum Depth is set to 1 there are still lines with 3 moves (depth >1/1) due to the extensions. It doesn't mean "no lines deeper than 20 play" as >can be seen from endgame example (near to a mate) if time is set on infinite. >CM will go a lot higher than 20--I believe it goes up to 60 or something like >that. "No lines deeper than brute force + 20 ply" wouldn't make sense because >the Selective Search setting limits it to "Brute Force + 10 ply". The maximum >search setting is nothing but the maximum of the selective search (i.e. if >maximum search is set to 8 the following are possible searches: 1/8, 2/8, 3/8/, >4/8,...8/8). Even though it displays 20 as it highest depth while viewing a >personality, moving the slider its furthest to the right will reveal (as you >foiund out recently) "max" which doesn't mean "20" but as rather "maximum". THanks for shedding some light on this. I think you should ask Mindscape to include that paragraph into their CM 7000 manual (but they will probably just say "Duh?" ... ;-(((( >Below is a simple example to prove that TheKing's search goes higher than 20: [snip] >I got up to about 35/36 in this example with the default setting, but I believe >I have been higher than that before. Position 01 from the Albillo test suite is a very good one to find out a program's maximum search depth because most programs search it to their max depth very quickly (from a few seconds up to 2-3 minutes), at least if they're highly selective searchers (does not work for weak amateur programs). I think CM (5555) went at least to 38 ply on that one. --- Shep
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