X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=src%2Fsearch.cpp;h=b58a344a597b61103c809706c4893aff48451553;hb=955edf1d1d4f5643b450b1ee1e95dc3f094e1884;hp=abb51190485cbfb1f0f721faa65c2d462721b203;hpb=6a6faac04db26daae6a77b6df6529e22d549531b;p=stockfish

diff --git a/src/search.cpp b/src/search.cpp
index abb51190..b58a344a 100644
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -855,7 +855,7 @@ namespace {
     {
         assert(probCutBeta < VALUE_INFINITE);
 
-        MovePicker mp(pos, ttMove, probCutBeta - ss->staticEval, depth - 3, &captureHistory);
+        MovePicker mp(pos, ttMove, probCutBeta - ss->staticEval, &captureHistory);
 
         while ((move = mp.next_move()) != MOVE_NONE)
             if (move != excludedMove && pos.legal(move))
@@ -1067,7 +1067,10 @@ moves_loop: // When in check, search starts here
                   if (  !PvNode
                       && value < singularBeta - 25
                       && ss->doubleExtensions <= 9)
+                  {
                       extension = 2;
+                      depth += depth < 12;
+                  }
               }
 
               // Multi-cut pruning
@@ -1244,10 +1247,18 @@ moves_loop: // When in check, search starts here
           // PV move or new best move?
           if (moveCount == 1 || value > alpha)
           {
-              rm.score = value;
+              rm.score =  rm.uciScore = value;
               rm.selDepth = thisThread->selDepth;
-              rm.scoreLowerbound = value >= beta;
-              rm.scoreUpperbound = value <= alpha;
+              rm.scoreLowerbound = rm.scoreUpperbound = false;
+
+              if (value >= beta) {
+                 rm.scoreLowerbound = true;
+                 rm.uciScore = beta;
+              }
+              else if (value <= alpha) {
+                 rm.scoreUpperbound = true;
+                 rm.uciScore = alpha;
+              }
               rm.pv.resize(1);
 
               assert((ss+1)->pv);
@@ -1289,7 +1300,7 @@ moves_loop: // When in check, search starts here
                       && depth < 6
                       && beta  <  VALUE_KNOWN_WIN
                       && alpha > -VALUE_KNOWN_WIN)
-                     depth -= 1;
+                      depth -= 1;
 
                   assert(depth > 0);
               }
@@ -1514,7 +1525,6 @@ moves_loop: // When in check, search starts here
           &&  futilityBase > -VALUE_KNOWN_WIN
           &&  type_of(move) != PROMOTION)
       {
-
           if (moveCount > 2)
               continue;
 
@@ -1840,7 +1850,7 @@ string UCI::pv(const Position& pos, Depth depth) {
           continue;
 
       Depth d = updated ? depth : std::max(1, depth - 1);
-      Value v = updated ? rootMoves[i].score : rootMoves[i].previousScore;
+      Value v = updated ? rootMoves[i].uciScore : rootMoves[i].previousScore;
 
       if (v == -VALUE_INFINITE)
           v = VALUE_ZERO;