From: Marco Costalba <mcostalba@gmail.com>
Date: Thu, 26 Nov 2009 10:37:21 +0000 (+0100)
Subject: IncrementalFutilityMargin to 4 and increased pruning
X-Git-Url: https://git.sesse.net/?p=stockfish;a=commitdiff_plain;h=af3dd21e9053feaf66ad884fae0a014d85c700f2;hp=af3dd21e9053feaf66ad884fae0a014d85c700f2

IncrementalFutilityMargin to 4 and increased pruning

Increase pruning at low depths while tone downa bit at
higher depths (linearize a bit the logaritmic behaviour)

This goes togheter with IncrementalFutilityMargin decreased
to 4 compensate the bigger pruning effect.

Total pruned nodes are more or less the same. We go from 36%
of nodes after prune to 37% with this patch.

After 999 games at 1+0
Mod vs Orig +250 =526 -223 +9 ELO

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
---