Retire Polyglot Book management

[stockfish] / src / search.cpp

diff --git a/src/search.cpp b/src/search.cpp
index 4ac4c086c00e18f29419c96df0696b3f2f23cfc0..99b89459b708d097ec3b7dbc605d17d3a05b4639 100644 (file)
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -25,11 +25,11 @@
 #include <iostream>
 #include <sstream>
 
-#include "book.h"
 #include "evaluate.h"
 #include "movegen.h"
 #include "movepick.h"
 #include "notation.h"
+#include "rkiss.h"
 #include "search.h"
 #include "timeman.h"
 #include "thread.h"
@@ -180,8 +180,6 @@ uint64_t Search::perft(Position& pos, Depth depth) {
 
 void Search::think() {
 
-  static PolyglotBook book; // Defined static to initialize the PRNG only once
-
   RootColor = RootPos.side_to_move();
   TimeMgr.init(Limits, RootPos.game_ply(), RootColor);
 
@@ -199,17 +197,6 @@ void Search::think() {
       goto finalize;
   }
 
-  if (Options["OwnBook"] && !Limits.infinite && !Limits.mate)
-  {
-      Move bookMove = book.probe(RootPos, Options["Book File"], Options["Best Book Move"]);
-
-      if (bookMove && std::count(RootMoves.begin(), RootMoves.end(), bookMove))
-      {
-          std::swap(RootMoves[0], *std::find(RootMoves.begin(), RootMoves.end(), bookMove));
-          goto finalize;
-      }
-  }
-
   if (Options["Write Search Log"])
   {
       Log log(Options["Search Log Filename"]);