X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fevaluate.cpp;h=fa3b0a720b2face4a2ac66d6085370f3b8e77e43;hp=c6740b5f65ba0f45f67c177f5b0ca1da13540589;hb=66ce8ad5fd0e67904ca96dd9ac58f2e512a1f380;hpb=7d4d3a2c3a4c6ce96bdbcfecf373934fdccc9b07

diff --git a/src/evaluate.cpp b/src/evaluate.cpp
index c6740b5f..fa3b0a72 100644
--- a/src/evaluate.cpp
+++ b/src/evaluate.cpp
@@ -2,7 +2,7 @@
   Stockfish, a UCI chess playing engine derived from Glaurung 2.1
   Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
   Copyright (C) 2008-2015 Marco Costalba, Joona Kiiski, Tord Romstad
-  Copyright (C) 2015-2017 Marco Costalba, Joona Kiiski, Gary Linscott, Tord Romstad
+  Copyright (C) 2015-2018 Marco Costalba, Joona Kiiski, Gary Linscott, Tord Romstad
 
   Stockfish is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -220,7 +220,6 @@ namespace {
   const Score WeakQueen             = S( 50, 10);
   const Score CloseEnemies          = S(  7,  0);
   const Score PawnlessFlank         = S( 20, 80);
-  const Score ThreatByHangingPawn   = S( 71, 61);
   const Score ThreatBySafePawn      = S(192,175);
   const Score ThreatByRank          = S( 16,  3);
   const Score Hanging               = S( 48, 27);
@@ -543,9 +542,6 @@ namespace {
         safeThreats = (shift<Right>(b) | shift<Left>(b)) & weak;
 
         score += ThreatBySafePawn * popcount(safeThreats);
-
-        if (weak ^ safeThreats)
-            score += ThreatByHangingPawn;
     }
 
     // Squares strongly protected by the opponent, either because they attack the