Stockfish 1.3.1

Mainteinance version to fix broken Glaurung 2
book reading.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>

src/misc.cpp

@@ -71,7 +71,7 @@ using namespace std;
 /// Version number. If this is left empty, the current date (in the format
 /// YYMMDD) is used as a version number.
 
-static const string EngineVersion = "1.3";
+static const string EngineVersion = "1.3.1";
 static const string AppName = "Stockfish";
 static const string AppTag  = "";
 

src/position.cpp

@@ -1939,26 +1939,26 @@ bool Position::has_mate_threat(Color c) {
 
 void Position::init_zobrist() {
 
-  for(Piece p = WP; p <= BK; p++)
+  for (int i = 0; i < 2; i++)
-      for(Square s = SQ_A1; s <= SQ_H8; s++)
+      for (int j = 0; j < 8; j++)
-          zobrist[color_of_piece(p)][type_of_piece(p)][s] = genrand_int64();
+          for (int k = 0; k < 64; k++)
+              zobrist[i][j][k] = Key(genrand_int64());
 
-  zobEp[0] = 0ULL;
+  for (int i = 0; i < 64; i++)
-  for(int i = 1; i < 64; i++)
+      zobEp[i] = Key(genrand_int64());
-      zobEp[i] = genrand_int64();
 
-  for(int i = 15; i >= 0; i--)
+  for (int i = 0; i < 16; i++)
-      zobCastle[(i&8) | (i&1) | ((i&2) << 1) | ((i&4) >> 1)] = genrand_int64();
+      zobCastle[i] = genrand_int64();
 
   zobSideToMove = genrand_int64();
 
   for (int i = 0; i < 2; i++)
       for (int j = 0; j < 8; j++)
           for (int k = 0; k < 16; k++)
-              zobMaterial[i][j][k] = (k > 0)? genrand_int64() : 0LL;
+              zobMaterial[i][j][k] = (k > 0)? Key(genrand_int64()) : Key(0LL);
 
   for (int i = 0; i < 16; i++)
-      zobMaterial[0][KING][i] = zobMaterial[1][KING][i] = 0ULL;
+      zobMaterial[0][KING][i] = zobMaterial[1][KING][i] = Key(0ULL);
 }