From: VoyagerOne <excelgeek@gmail.com>
Date: Sat, 15 Oct 2016 21:35:10 +0000 (-0400)
Subject: Use explicit logic for pruning
X-Git-Url: https://git.sesse.net/?a=commitdiff_plain;ds=sidebyside;h=e27d3bb884dc17027010c1ea8f7e7d9efb383d4c;hp=e27d3bb884dc17027010c1ea8f7e7d9efb383d4c;p=stockfish

Use explicit logic for pruning

Also a speedup since we don't need to recalculate SEE
for extensions...as it already determined to be positive.

Results for 12 tests for each version:

        Base      Test      Diff
Mean    2132395   2191002   -58607
StDev   128058    85917     134239
p-value: 0.669
speedup: 0.027

Non functional change.
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