X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fsearch.cpp;h=f64f55f0a129a4b4292891140ebd9eb1ad818af5;hp=4b0a9fe8b60676b96c7c5dcc9bda19f9d5bcd6b8;hb=738c5595adefe397d8389fb315908e7d2f6ab40c;hpb=bebd6e16f6e8be116419632635baf9c0d8b7ba4e;ds=sidebyside

diff --git a/src/search.cpp b/src/search.cpp
index 4b0a9fe8..f64f55f0 100644
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -837,7 +837,7 @@ moves_loop: // When in check and at SpNode search starts from here
           ext = ONE_PLY;
 
       else if (givesCheck && pos.see_sign(move) >= 0)
-          ext = ONE_PLY / 2;
+          ext = inCheck || ss->staticEval < VALUE_ZERO ? ONE_PLY : ONE_PLY / 2;
 
       // Singular extension search. If all moves but one fail low on a search of
       // (alpha-s, beta-s), and just one fails high on (alpha, beta), then that move