From: Marco Costalba <mcostalba@gmail.com>
Date: Thu, 19 Jun 2014 13:44:42 +0000 (+0200)
Subject: Simplify a condition in is_KXK()
X-Git-Url: http://winboard.nl/cgi-bin?a=commitdiff_plain;h=264c8637a30247f1054f60b7b728fb4340185efa;p=fairystockfish.git

Simplify a condition in is_KXK()

No functional change.
---

diff --git a/src/material.cpp b/src/material.cpp
index 9a12066..0949a1b 100644
--- a/src/material.cpp
+++ b/src/material.cpp
@@ -66,8 +66,7 @@ namespace {
   // Helper templates used to detect a given material distribution
   template<Color Us> bool is_KXK(const Position& pos) {
     const Color Them = (Us == WHITE ? BLACK : WHITE);
-    return  !pos.count<PAWN>(Them)
-          && pos.non_pawn_material(Them) == VALUE_ZERO
+    return  !more_than_one(pos.pieces(Them))
           && pos.non_pawn_material(Us) >= RookValueMg;
   }