- /* 
-   Stockfish, a UCI chess playing engine derived from Glaurung 2.1 
-   Copyright (C) 2004-2008 Tord Romstad (Glaurung author) 
-   Copyright (C) 2008-2015 Marco Costalba, Joona Kiiski, Tord Romstad 
-   Copyright (C) 2015-2019 Marco Costalba, Joona Kiiski, Gary Linscott, Tord Romstad 
-   
-   Stockfish is free software: you can redistribute it and/or modify 
-   it under the terms of the GNU General Public License as published by 
-   the Free Software Foundation, either version 3 of the License, or 
-   (at your option) any later version. 
-   
-   Stockfish is distributed in the hope that it will be useful, 
-   but WITHOUT ANY WARRANTY; without even the implied warranty of 
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
-   GNU General Public License for more details. 
-   
-   You should have received a copy of the GNU General Public License 
-   along with this program.  If not, see <http://www.gnu.org/licenses/>. 
- */ 
-   
- #include <fstream> 
- #include <iostream> 
- #include <istream> 
- #include <vector> 
-   
- #include "position.h" 
-   
- using namespace std; 
-   
- namespace { 
-   
- const vector<string> Defaults = { 
-   "setoption name UCI_Chess960 value false", 
-   "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1", 
-   "r3k2r/p1ppqpb1/bn2pnp1/3PN3/1p2P3/2N2Q1p/PPPBBPPP/R3K2R w KQkq - 0 10", 
-   "8/2p5/3p4/KP5r/1R3p1k/8/4P1P1/8 w - - 0 11", 
-   "4rrk1/pp1n3p/3q2pQ/2p1pb2/2PP4/2P3N1/P2B2PP/4RRK1 b - - 7 19", 
-   "rq3rk1/ppp2ppp/1bnpb3/3N2B1/3NP3/7P/PPPQ1PP1/2KR3R w - - 7 14 moves d4e6", 
-   "r1bq1r1k/1pp1n1pp/1p1p4/4p2Q/4Pp2/1BNP4/PPP2PPP/3R1RK1 w - - 2 14 moves g2g4", 
-   "r3r1k1/2p2ppp/p1p1bn2/8/1q2P3/2NPQN2/PPP3PP/R4RK1 b - - 2 15", 
-   "r1bbk1nr/pp3p1p/2n5/1N4p1/2Np1B2/8/PPP2PPP/2KR1B1R w kq - 0 13", 
-   "r1bq1rk1/ppp1nppp/4n3/3p3Q/3P4/1BP1B3/PP1N2PP/R4RK1 w - - 1 16", 
-   "4r1k1/r1q2ppp/ppp2n2/4P3/5Rb1/1N1BQ3/PPP3PP/R5K1 w - - 1 17", 
-   "2rqkb1r/ppp2p2/2npb1p1/1N1Nn2p/2P1PP2/8/PP2B1PP/R1BQK2R b KQ - 0 11", 
-   "r1bq1r1k/b1p1npp1/p2p3p/1p6/3PP3/1B2NN2/PP3PPP/R2Q1RK1 w - - 1 16", 
-   "3r1rk1/p5pp/bpp1pp2/8/q1PP1P2/b3P3/P2NQRPP/1R2B1K1 b - - 6 22", 
-   "r1q2rk1/2p1bppp/2Pp4/p6b/Q1PNp3/4B3/PP1R1PPP/2K4R w - - 2 18", 
-   "4k2r/1pb2ppp/1p2p3/1R1p4/3P4/2r1PN2/P4PPP/1R4K1 b - - 3 22", 
-   "3q2k1/pb3p1p/4pbp1/2r5/PpN2N2/1P2P2P/5PP1/Q2R2K1 b - - 4 26", 
-   "6k1/6p1/6Pp/ppp5/3pn2P/1P3K2/1PP2P2/3N4 b - - 0 1", 
-   "3b4/5kp1/1p1p1p1p/pP1PpP1P/P1P1P3/3KN3/8/8 w - - 0 1", 
-   "2K5/p7/7P/5pR1/8/5k2/r7/8 w - - 0 1 moves g5g6 f3e3 g6g5 e3f3", 
-   "8/6pk/1p6/8/PP3p1p/5P2/4KP1q/3Q4 w - - 0 1", 
-   "7k/3p2pp/4q3/8/4Q3/5Kp1/P6b/8 w - - 0 1", 
-   "8/2p5/8/2kPKp1p/2p4P/2P5/3P4/8 w - - 0 1", 
-   "8/1p3pp1/7p/5P1P/2k3P1/8/2K2P2/8 w - - 0 1", 
-   "8/pp2r1k1/2p1p3/3pP2p/1P1P1P1P/P5KR/8/8 w - - 0 1", 
-   "8/3p4/p1bk3p/Pp6/1Kp1PpPp/2P2P1P/2P5/5B2 b - - 0 1", 
-   "5k2/7R/4P2p/5K2/p1r2P1p/8/8/8 b - - 0 1", 
-   "6k1/6p1/P6p/r1N5/5p2/7P/1b3PP1/4R1K1 w - - 0 1", 
-   "1r3k2/4q3/2Pp3b/3Bp3/2Q2p2/1p1P2P1/1P2KP2/3N4 w - - 0 1", 
-   "6k1/4pp1p/3p2p1/P1pPb3/R7/1r2P1PP/3B1P2/6K1 w - - 0 1", 
-   "8/3p3B/5p2/5P2/p7/PP5b/k7/6K1 w - - 0 1", 
-   
-   // 5-man positions 
-   "8/8/8/8/5kp1/P7/8/1K1N4 w - - 0 1",     // Kc2 - mate 
-   "8/8/8/5N2/8/p7/8/2NK3k w - - 0 1",      // Na2 - mate 
-   "8/3k4/8/8/8/4B3/4KB2/2B5 w - - 0 1",    // draw 
-   
-   // 6-man positions 
-   "8/8/1P6/5pr1/8/4R3/7k/2K5 w - - 0 1",   // Re5 - mate 
-   "8/2p4P/8/kr6/6R1/8/8/1K6 w - - 0 1",    // Ka2 - mate 
-   "8/8/3P3k/8/1p6/8/1P6/1K3n2 b - - 0 1",  // Nd2 - draw 
-   
-   // 7-man positions 
-   "8/R7/2q5/8/6k1/8/1P5p/K6R w - - 0 124", // Draw 
-   
-   // Mate and stalemate positions 
-   "6k1/3b3r/1p1p4/p1n2p2/1PPNpP1q/P3Q1p1/1R1RB1P1/5K2 b - - 0 1", 
-   "r2r1n2/pp2bk2/2p1p2p/3q4/3PN1QP/2P3R1/P4PP1/5RK1 w - - 0 1", 
-   "8/8/8/8/8/6k1/6p1/6K1 w - -", 
-   "7k/7P/6K1/8/3B4/8/8/8 b - -", 
-   
-   // Chess 960 
-   "setoption name UCI_Chess960 value true", 
-   "bbqnnrkr/pppppppp/8/8/8/8/PPPPPPPP/BBQNNRKR w KQkq - 0 1 moves g2g3 d7d5 d2d4 c8h3 c1g5 e8d6 g5e7 f7f6", 
-   "setoption name UCI_Chess960 value false" 
- }; 
-   
- } // namespace 
-   
- /// setup_bench() builds a list of UCI commands to be run by bench. There 
- /// are five parameters: TT size in MB, number of search threads that 
- /// should be used, the limit value spent for each position, a file name 
- /// where to look for positions in FEN format and the type of the limit: 
- /// depth, perft, nodes and movetime (in millisecs). 
- /// 
- /// bench -> search default positions up to depth 13 
- /// bench 64 1 15 -> search default positions up to depth 15 (TT = 64MB) 
- /// bench 64 4 5000 current movetime -> search current position with 4 threads for 5 sec 
- /// bench 64 1 100000 default nodes -> search default positions for 100K nodes each 
- /// bench 16 1 5 default perft -> run a perft 5 on default positions 
-   
- vector<string> setup_bench(const Position& current, istream& is) { 
-   
-   vector<string> fens, list; 
-   string go, token; 
-   
-   // Assign default values to missing arguments 
-   string ttSize    = (is >> token) ? token : "16"; 
-   string threads   = (is >> token) ? token : "1"; 
-   string limit     = (is >> token) ? token : "13"; 
-   string fenFile   = (is >> token) ? token : "default"; 
-   string limitType = (is >> token) ? token : "depth"; 
-   
-   go = "go " + limitType + " " + limit; 
-   
-   if (fenFile == "default") 
-       fens = Defaults; 
-   
-   else if (fenFile == "current") 
-       fens.push_back(current.fen()); 
-   
-   else 
-   { 
-       string fen; 
-       ifstream file(fenFile); 
-   
-       if (!file.is_open()) 
-       { 
-           cerr << "Unable to open file " << fenFile << endl; 
-           exit(EXIT_FAILURE); 
-       } 
-   
-       while (getline(file, fen)) 
-           if (!fen.empty()) 
-               fens.push_back(fen); 
-   
-       file.close(); 
-   } 
-   
-   list.emplace_back("ucinewgame"); 
-   list.emplace_back("setoption name Threads value " + threads); 
-   list.emplace_back("setoption name Hash value " + ttSize); 
-   
-   for (const string& fen : fens) 
-       if (fen.find("setoption") != string::npos) 
-           list.emplace_back(fen); 
-       else 
-       { 
-           list.emplace_back("position fen " + fen); 
-           list.emplace_back(go); 
-       } 
-   
-   return list; 
- } 
-