X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fsearch.cpp;h=6bdf255c3dafee03b8b2fff95536cc7a7405fba7;hp=cf640a0a90beb33e497474ea514b899d2f006b3b;hb=156635749bfc9fc8e71aa8c44d7bd2cfe7a78457;hpb=083fe5812485597e13943b690cc24a8f25c0d140

diff --git a/src/search.cpp b/src/search.cpp
index cf640a0a..6bdf255c 100644
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -646,6 +646,7 @@ namespace {
         && !inCheck
         &&  eval - futility_margin(depth, (ss-1)->futilityMoveCount) >= beta
         &&  abs(beta) < VALUE_MATE_IN_MAX_PLY
+        &&  abs(eval) < VALUE_KNOWN_WIN
         &&  pos.non_pawn_material(pos.side_to_move()))
         return eval - futility_margin(depth, (ss-1)->futilityMoveCount);