From: Jonathan Calovski <jonoface@live.com.au>
Date: Fri, 21 Nov 2014 21:46:59 +0000 (+0800)
Subject: Amend defended
X-Git-Url: https://git.sesse.net/?p=stockfish;a=commitdiff_plain;h=48127fe5d35b01c1cd1ffb8657ed73dfe5730da3;hp=84408e5cd68a9323292ddababec4d1183abeef2e

Amend defended

Amend defended to remove now redundant condition.

No functional change.

Resolves #125
---

diff --git a/src/evaluate.cpp b/src/evaluate.cpp
index b47570e8..b7a596ef 100644
--- a/src/evaluate.cpp
+++ b/src/evaluate.cpp
@@ -503,10 +503,9 @@ namespace {
     Bitboard b, weak, defended;
     Score score = SCORE_ZERO;
 
-    // Non-pawn enemies defended by a pawn and under our attack
+    // Non-pawn enemies defended by a pawn
     defended =  (pos.pieces(Them) ^ pos.pieces(Them, PAWN))
-              &  ei.attackedBy[Them][PAWN]
-              & (ei.attackedBy[Us][KNIGHT] | ei.attackedBy[Us][BISHOP] | ei.attackedBy[Us][ROOK]);
+              &  ei.attackedBy[Them][PAWN];
 
     // Add a bonus according to the kind of attacking pieces
     if (defended)