Do more reductions at Pv nodes with low delta

[stockfish] / src / thread.h

diff --git a/src/thread.h b/src/thread.h
index e04d303a271996ee39f2335997e58e6fd4c3bcf7..fae866c4f30d21657f1ae396f5277a0b83cf50ee 100644 (file)
--- a/src/thread.h
+++ b/src/thread.h
@@ -72,6 +72,7 @@ public:
   StateInfo rootState;
   Search::RootMoves rootMoves;
   Depth rootDepth, completedDepth;
+  Value rootDelta;
   CounterMoveHistory counterMoves;
   ButterflyHistory mainHistory;
   LowPlyHistory lowPlyHistory;