From: Ralph Stößer <ralph.stoesser@ralph_stoesser.(none)>
Date: Mon, 9 Dec 2013 07:02:49 +0000 (+0100)
Subject: Research at intermediate depth if LMR is very high
X-Git-Url: https://git.sesse.net/?p=stockfish;a=commitdiff_plain;h=8e9d4081ee9def12f50dbd3169b765839fcb4c86;hp=8e9d4081ee9def12f50dbd3169b765839fcb4c86

Research at intermediate depth if LMR is very high

After a fail high in LMR, if reduction is very high do
a research at lower depth before teh full depth one.
Chances are that the re-search will fail low and the
full depth one is skipped.

Passed both short TC:
LLR: 2.95 (-2.94,2.94) [-1.50,4.50]
Total: 11363 W: 2204 L: 2069 D: 7090

And long TC:
LLR: 2.95 (-2.94,2.94) [0.00,6.00]
Total: 7292 W: 1195 L: 1061 D: 5036

bench: 7869223
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