X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fbook.cpp;h=da45b32484c47abf8142ef5c537a8a417a28fcb0;hp=caf2b0663ec76987720231e29360c6d434238d27;hb=f99cb3dc27719021e126690b7fd5aa5f43663ed8;hpb=d3608c4e79a29110f4c4a369d7207c6dd8e01f34

diff --git a/src/book.cpp b/src/book.cpp
index caf2b066..da45b324 100644
--- a/src/book.cpp
+++ b/src/book.cpp
@@ -25,7 +25,6 @@
 
 #include <algorithm>
 #include <cassert>
-#include <iostream>
 
 #include "book.h"
 #include "misc.h"
@@ -50,7 +49,7 @@ namespace {
     Key PolyGlotRandoms[781];
     struct {
       Key psq[12][64];  // [piece][square]
-      Key castle[4];    // [castle right]
+      Key castling[4];  // [castling flag]
       Key enpassant[8]; // [file]
       Key turn;
     } Zobrist;
@@ -333,10 +332,10 @@ namespace {
         key ^= PG.Zobrist.psq[2 * (type_of(p) - 1) + (color_of(p) == WHITE)][s];
     }
 
-    b = pos.can_castle(ALL_CASTLES);
+    b = pos.can_castle(ANY_CASTLING);
 
     while (b)
-        key ^= PG.Zobrist.castle[pop_lsb(&b)];
+        key ^= PG.Zobrist.castling[pop_lsb(&b)];
 
     if (pos.ep_square() != SQ_NONE)
         key ^= PG.Zobrist.enpassant[file_of(pos.ep_square())];
@@ -361,7 +360,7 @@ PolyglotBook::~PolyglotBook() { if (is_open()) close(); }
 template<typename T> PolyglotBook& PolyglotBook::operator>>(T& n) {
 
   n = 0;
-  for (size_t i = 0; i < sizeof(T); i++)
+  for (size_t i = 0; i < sizeof(T); ++i)
       n = T((n << 8) + ifstream::get());
 
   return *this;
@@ -413,7 +412,7 @@ Move PolyglotBook::probe(const Position& pos, const string& fName, bool pickBest
       // Choose book move according to its score. If a move has a very
       // high score it has higher probability to be choosen than a move
       // with lower score. Note that first entry is always chosen.
-      if (   (sum && rkiss.rand<unsigned>() % sum < e.count)
+      if (   (!pickBest && sum && rkiss.rand<unsigned>() % sum < e.count)
           || (pickBest && e.count == best))
           move = Move(e.move);
   }