Generate Qsearch checks only at depth 0

[stockfish] / src / timeman.cpp

diff --git a/src/timeman.cpp b/src/timeman.cpp
index 6112951cc974499db1878c59954959c0b4478064..146818e6fde6efac0638ae87ee459e7adedb6f78 100644 (file)
--- a/src/timeman.cpp
+++ b/src/timeman.cpp
@@ -78,7 +78,7 @@ namespace {
 
 void TimeManager::pv_instability(double bestMoveChanges) {
 
-  unstablePVExtraTime = int(bestMoveChanges * optimumSearchTime);
+  unstablePVExtraTime = int(bestMoveChanges * optimumSearchTime / 1.4);
 }
 
 
@@ -147,14 +147,14 @@ namespace {
     const double TMaxRatio   = (T == OptimumTime ? 1 : MaxRatio);
     const double TStealRatio = (T == OptimumTime ? 0 : StealRatio);
 
-    int thisMoveImportance = move_importance(currentPly) * slowMover / 100;
+    double thisMoveImportance = double(move_importance(currentPly) * slowMover) / 100;
     int otherMovesImportance = 0;
 
     for (int i = 1; i < movesToGo; ++i)
         otherMovesImportance += move_importance(currentPly + 2 * i);
 
-    double ratio1 = (TMaxRatio * thisMoveImportance) / double(TMaxRatio * thisMoveImportance + otherMovesImportance);
-    double ratio2 = (thisMoveImportance + TStealRatio * otherMovesImportance) / double(thisMoveImportance + otherMovesImportance);
+    double ratio1 = (TMaxRatio * thisMoveImportance) / (TMaxRatio * thisMoveImportance + otherMovesImportance);
+    double ratio2 = (thisMoveImportance + TStealRatio * otherMovesImportance) / (thisMoveImportance + otherMovesImportance);
 
     return int(floor(myTime * std::min(ratio1, ratio2)));
   }