From: Gary Linscott <glinscott@gmail.com>
Date: Fri, 8 Feb 2013 13:53:13 +0000 (-0500)
Subject: Slight tweak to king safety.  Bench: 5534531
X-Git-Url: https://git.sesse.net/?p=stockfish;a=commitdiff_plain;h=0c06b4509d45faec7c6c010bb4fc45b140b26abd;hp=bf706c4a4ff06e91edf8c24685d24130146f88d4

Slight tweak to king safety.  Bench: 5534531
---

diff --git a/src/evaluate.cpp b/src/evaluate.cpp
index 49dc07fe..8192536f 100644
--- a/src/evaluate.cpp
+++ b/src/evaluate.cpp
@@ -496,7 +496,7 @@ Value do_evaluate(const Position& pos, Value& margin) {
 
     // Init king safety tables only if we are going to use them
     if (   pos.piece_count(Us, QUEEN)
-        && pos.non_pawn_material(Us) >= QueenValueMg + RookValueMg)
+        && pos.non_pawn_material(Us) > QueenValueMg + PawnValueMg)
     {
         ei.kingRing[Them] = (b | (Us == WHITE ? b >> 8 : b << 8));
         b &= ei.attackedBy[Us][PAWN];