Remove unnecessay legality check

[stockfish] / src / search.cpp

diff --git a/src/search.cpp b/src/search.cpp
index 4a993b017542cd84b6cd159f4a5f64e0feee9dd4..e5d18f776f176b04d476852904ca774c401185ce 100644 (file)
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -1079,8 +1079,7 @@ moves_loop: // When in check, search starts from here
        /* &&  ttValue != VALUE_NONE Already implicit in the next condition */
           &&  abs(ttValue) < VALUE_KNOWN_WIN
           && (tte->bound() & BOUND_LOWER)
-          &&  tte->depth() >= depth - 3
-          &&  pos.legal(move))
+          &&  tte->depth() >= depth - 3)
       {
           Value singularBeta = ttValue - ((formerPv + 4) * depth) / 2;
           Depth singularDepth = (depth - 1 + 3 * formerPv) / 2;