From: Marco Costalba <mcostalba@gmail.com>
Date: Sat, 3 Jul 2010 05:02:06 +0000 (+0100)
Subject: Tweak non-captures scoring
X-Git-Url: http://winboard.nl/cgi-bin?a=commitdiff_plain;h=2dfec0f6147f62fb772cde912a9436d2d5054703;p=fairystockfish.git

Tweak non-captures scoring

Tested with Orig set at f5ef5632f so to evaluate
direct gain against 1.8

After 3239 games at 10"+0.1
Mod vs Orig +701 =1906 -632 +7 ELO

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

diff --git a/src/movepick.cpp b/src/movepick.cpp
index dcc9401..5163e87 100644
--- a/src/movepick.cpp
+++ b/src/movepick.cpp
@@ -228,7 +228,7 @@ void MovePicker::score_noncaptures() {
       from = move_from(m);
       to = move_to(m);
       piece = pos.piece_on(from);
-      cur->score = H.value(piece, to);
+      cur->score = H.value(piece, to) + H.gain(piece, to);
   }
 }