X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fsearch.cpp;h=9636ee4065722b70a66a7169dc51f4e3433d0a55;hp=b750047e2e4b9e9515f3b77184995bacc59dee56;hb=a10c9632a5733e1b1aec19950bc3fb541762e36f;hpb=bc4e937f05702641f6d6a99a1dd03b6703a098ed

diff --git a/src/search.cpp b/src/search.cpp
index b750047e..9636ee40 100644
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -1299,6 +1299,11 @@ namespace {
     if (pos.is_draw())
         return VALUE_DRAW;
 
+    // Transposition table lookup
+    const TTEntry* tte = TT.retrieve(pos);
+    if (tte && ok_to_use_TT(tte, depth, beta, ply))
+        return value_from_tt(tte->value(), ply);
+
     // Evaluate the position statically:
     Value staticValue = evaluate(pos, ei, threadID);
 
@@ -1396,6 +1401,9 @@ namespace {
 
     assert(bestValue > -VALUE_INFINITE && bestValue < VALUE_INFINITE);
 
+    // Update transposition table
+    TT.store(pos, value_to_tt(bestValue, ply), depth, MOVE_NONE, VALUE_TYPE_EXACT);
+
     return bestValue;
   }