opelly/Stockfish
1
0
Fork 0
mirror of https://github.com/opelly27/Stockfish.git synced 2026-05-20 09:47:46 +00:00
Code Issues Packages Projects Releases Wiki Activity

Convert gains to use a piece-to mapping

Browse Source 
Instead of piece-from-to, in this way it is similar
to what we already do for history.

Almost no change, but seems a bit simpler in this way.

After 995 games at 1+0
Mod vs Orig +207 =596 -192 +5 ELO

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba
2010-02-02 09:10:15 +01:00
parent 770db27164
commit 439aea9ab7
3 changed files with 12 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/search.cpp
+2 -2
View File
@@ -1607,7 +1607,7 @@ namespace {
if (predictedDepth >= OnePly)
preFutilityValueMargin = FutilityMargins[int(predictedDepth)];
preFutilityValueMargin += H.gain(pos.piece_on(move_from(move)), move_from(move), move_to(move)) + 45;
preFutilityValueMargin += H.gain(pos.piece_on(move_from(move)), move_to(move)) + 45;
futilityValueScaled = ss[ply].eval + preFutilityValueMargin - moveCount * IncrementalFutilityMargin;
@@ -2704,7 +2704,7 @@ namespace {
&& pos.captured_piece() == NO_PIECE_TYPE
&& !move_is_castle(m)
&& !move_is_promotion(m))
H.set_gain(pos.piece_on(move_to(m)), move_from(m), move_to(m), -(before + after));
H.set_gain(pos.piece_on(move_to(m)), move_to(m), -(before + after));
}