X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fsearch.cpp;h=ed029b4c4a08e6d15b3ef28f2b4b246b04ad74d9;hp=f99f63beca57fda3d7e3b4780595e85f4d5c2b09;hb=7d42d02ec77a03c4c1e1b399df30ef8b363c1237;hpb=0b4ea54da999e591284aaeec702b6239ca219b81

diff --git a/src/search.cpp b/src/search.cpp
index f99f63be..ed029b4c 100644
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -745,7 +745,7 @@ namespace {
         && ttMove == MOVE_NONE
         && (PvNode || (!inCheck && ss->staticEval + Value(256) >= beta)))
     {
-        Depth d = (PvNode ? depth - 2 * ONE_PLY : depth / 2);
+        Depth d = depth - 2 * ONE_PLY - (PvNode ? DEPTH_ZERO : depth / 4);
 
         ss->skipNullMove = true;
         search<PvNode ? PV : NonPV>(pos, ss, alpha, beta, d);