X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fsearch.cpp;h=9ae28d3c55870b554a5681782442dbbc3569b3c3;hp=2a7cde2b5fe848b7be3c778c263fc5d730da9a5b;hb=f39cf1b00801c1d2688fa2ba1375d211e205b13a;hpb=f45eee318bbe0fe1465bda80bf62bc8b3bc7d07c

diff --git a/src/search.cpp b/src/search.cpp
index 2a7cde2b..9ae28d3c 100644
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -663,7 +663,7 @@ namespace {
     // Step 8. Null move search with verification search (is omitted in PV nodes)
     if (   !PvNode
         && !ss->skipNullMove
-        &&  depth > ONE_PLY
+        &&  depth >= 2 * ONE_PLY
         &&  eval >= beta
         &&  abs(beta) < VALUE_MATE_IN_MAX_PLY
         &&  pos.non_pawn_material(pos.side_to_move()))