HCha/Stockfish
1
0
Fork 0
mirror of https://github.com/HChaZZY/Stockfish.git synced 2025-12-20 00:56:39 +08:00
Code Issues Packages Projects Releases Wiki Activity

Simple always overwrite Refutation table

Browse Source
This commit is contained in:
Joona Kiiski
2013-05-12 21:21:46 +01:00
parent 818a3537a7
commit c7e31d5aa8
3 changed files with 27 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
src/search.cpp
View File

@@ -88,6 +88,7 @@ namespace {
Value DrawValue[COLOR_NB];
History Hist;
Gains Gain;
RefutationTable Refutation;
template <NodeType NT>
Value search(Position& pos, Stack* ss, Value alpha, Value beta, Depth depth);
@@ -305,6 +306,7 @@ namespace {
TT.new_search();
Hist.clear();
Gain.clear();
Refutation.clear();
PVSize = Options["MultiPV"];
Skill skill(Options["Skill Level"]);
@@ -764,7 +766,12 @@ namespace {
split_point_start: // At split points actual search starts from here
MovePicker mp(pos, ttMove, depth, Hist, ss, PvNode ? -VALUE_INFINITE : beta);
Move prevMove = (ss-1)->currentMove;
Square prevSq = to_sq(prevMove);
Piece prevP = pos.piece_on(prevSq);
Move refutationMove = Refutation.get(prevP, prevSq);
MovePicker mp(pos, ttMove, depth, Hist, ss, refutationMove, PvNode ? -VALUE_INFINITE : beta);
CheckInfo ci(pos);
value = bestValue; // Workaround a bogus 'uninitialized' warning under gcc
singularExtensionNode = !RootNode
@@ -1090,6 +1097,7 @@ split_point_start: // At split points actual search starts from here
// Increase history value of the cut-off move
Value bonus = Value(int(depth) * int(depth));
Hist.update(pos.piece_moved(bestMove), to_sq(bestMove), bonus);
//Refutation.update(prevP, prevSq, bestMove);
// Decrease history of all the other played non-capture moves
for (int i = 0; i < playedMoveCount - 1; i++)