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    1 /*
    2   Stockfish, a UCI chess playing engine derived from Glaurung 2.1
    3   Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
    4   Copyright (C) 2008-2015 Marco Costalba, Joona Kiiski, Tord Romstad
    5   Copyright (C) 2015-2020 Marco Costalba, Joona Kiiski, Gary Linscott, Tord Romstad
    6 
    7   Stockfish is free software: you can redistribute it and/or modify
    8   it under the terms of the GNU General Public License as published by
    9   the Free Software Foundation, either version 3 of the License, or
   10   (at your option) any later version.
   11 
   12   Stockfish is distributed in the hope that it will be useful,
   13   but WITHOUT ANY WARRANTY; without even the implied warranty of
   14   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   15   GNU General Public License for more details.
   16 
   17   You should have received a copy of the GNU General Public License
   18   along with this program.  If not, see <http://www.gnu.org/licenses/>.
   19 */
   20 
   21 #include <fstream>
   22 #include <iostream>
   23 #include <istream>
   24 #include <vector>
   25 
   26 #include "position.h"
   27 
   28 using namespace std;
   29 
   30 namespace {
   31 
   32 const vector<string> Defaults = {
   33   "setoption name UCI_Chess960 value false",
   34   "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1",
   35   "r3k2r/p1ppqpb1/bn2pnp1/3PN3/1p2P3/2N2Q1p/PPPBBPPP/R3K2R w KQkq - 0 10",
   36   "8/2p5/3p4/KP5r/1R3p1k/8/4P1P1/8 w - - 0 11",
   37   "4rrk1/pp1n3p/3q2pQ/2p1pb2/2PP4/2P3N1/P2B2PP/4RRK1 b - - 7 19",
   38   "rq3rk1/ppp2ppp/1bnpb3/3N2B1/3NP3/7P/PPPQ1PP1/2KR3R w - - 7 14 moves d4e6",
   39   "r1bq1r1k/1pp1n1pp/1p1p4/4p2Q/4Pp2/1BNP4/PPP2PPP/3R1RK1 w - - 2 14 moves g2g4",
   40   "r3r1k1/2p2ppp/p1p1bn2/8/1q2P3/2NPQN2/PPP3PP/R4RK1 b - - 2 15",
   41   "r1bbk1nr/pp3p1p/2n5/1N4p1/2Np1B2/8/PPP2PPP/2KR1B1R w kq - 0 13",
   42   "r1bq1rk1/ppp1nppp/4n3/3p3Q/3P4/1BP1B3/PP1N2PP/R4RK1 w - - 1 16",
   43   "4r1k1/r1q2ppp/ppp2n2/4P3/5Rb1/1N1BQ3/PPP3PP/R5K1 w - - 1 17",
   44   "2rqkb1r/ppp2p2/2npb1p1/1N1Nn2p/2P1PP2/8/PP2B1PP/R1BQK2R b KQ - 0 11",
   45   "r1bq1r1k/b1p1npp1/p2p3p/1p6/3PP3/1B2NN2/PP3PPP/R2Q1RK1 w - - 1 16",
   46   "3r1rk1/p5pp/bpp1pp2/8/q1PP1P2/b3P3/P2NQRPP/1R2B1K1 b - - 6 22",
   47   "r1q2rk1/2p1bppp/2Pp4/p6b/Q1PNp3/4B3/PP1R1PPP/2K4R w - - 2 18",
   48   "4k2r/1pb2ppp/1p2p3/1R1p4/3P4/2r1PN2/P4PPP/1R4K1 b - - 3 22",
   49   "3q2k1/pb3p1p/4pbp1/2r5/PpN2N2/1P2P2P/5PP1/Q2R2K1 b - - 4 26",
   50   "6k1/6p1/6Pp/ppp5/3pn2P/1P3K2/1PP2P2/3N4 b - - 0 1",
   51   "3b4/5kp1/1p1p1p1p/pP1PpP1P/P1P1P3/3KN3/8/8 w - - 0 1",
   52   "2K5/p7/7P/5pR1/8/5k2/r7/8 w - - 0 1 moves g5g6 f3e3 g6g5 e3f3",
   53   "8/6pk/1p6/8/PP3p1p/5P2/4KP1q/3Q4 w - - 0 1",
   54   "7k/3p2pp/4q3/8/4Q3/5Kp1/P6b/8 w - - 0 1",
   55   "8/2p5/8/2kPKp1p/2p4P/2P5/3P4/8 w - - 0 1",
   56   "8/1p3pp1/7p/5P1P/2k3P1/8/2K2P2/8 w - - 0 1",
   57   "8/pp2r1k1/2p1p3/3pP2p/1P1P1P1P/P5KR/8/8 w - - 0 1",
   58   "8/3p4/p1bk3p/Pp6/1Kp1PpPp/2P2P1P/2P5/5B2 b - - 0 1",
   59   "5k2/7R/4P2p/5K2/p1r2P1p/8/8/8 b - - 0 1",
   60   "6k1/6p1/P6p/r1N5/5p2/7P/1b3PP1/4R1K1 w - - 0 1",
   61   "1r3k2/4q3/2Pp3b/3Bp3/2Q2p2/1p1P2P1/1P2KP2/3N4 w - - 0 1",
   62   "6k1/4pp1p/3p2p1/P1pPb3/R7/1r2P1PP/3B1P2/6K1 w - - 0 1",
   63   "8/3p3B/5p2/5P2/p7/PP5b/k7/6K1 w - - 0 1",
   64   "5rk1/q6p/2p3bR/1pPp1rP1/1P1Pp3/P3B1Q1/1K3P2/R7 w - - 93 90",
   65   "4rrk1/1p1nq3/p7/2p1P1pp/3P2bp/3Q1Bn1/PPPB4/1K2R1NR w - - 40 21",
   66   "r3k2r/3nnpbp/q2pp1p1/p7/Pp1PPPP1/4BNN1/1P5P/R2Q1RK1 w kq - 0 16",
   67   "3Qb1k1/1r2ppb1/pN1n2q1/Pp1Pp1Pr/4P2p/4BP2/4B1R1/1R5K b - - 11 40",
   68 
   69   // 5-man positions
   70   "8/8/8/8/5kp1/P7/8/1K1N4 w - - 0 1",     // Kc2 - mate
   71   "8/8/8/5N2/8/p7/8/2NK3k w - - 0 1",      // Na2 - mate
   72   "8/3k4/8/8/8/4B3/4KB2/2B5 w - - 0 1",    // draw
   73 
   74   // 6-man positions
   75   "8/8/1P6/5pr1/8/4R3/7k/2K5 w - - 0 1",   // Re5 - mate
   76   "8/2p4P/8/kr6/6R1/8/8/1K6 w - - 0 1",    // Ka2 - mate
   77   "8/8/3P3k/8/1p6/8/1P6/1K3n2 b - - 0 1",  // Nd2 - draw
   78 
   79   // 7-man positions
   80   "8/R7/2q5/8/6k1/8/1P5p/K6R w - - 0 124", // Draw
   81 
   82   // Mate and stalemate positions
   83   "6k1/3b3r/1p1p4/p1n2p2/1PPNpP1q/P3Q1p1/1R1RB1P1/5K2 b - - 0 1",
   84   "r2r1n2/pp2bk2/2p1p2p/3q4/3PN1QP/2P3R1/P4PP1/5RK1 w - - 0 1",
   85   "8/8/8/8/8/6k1/6p1/6K1 w - -",
   86   "7k/7P/6K1/8/3B4/8/8/8 b - -",
   87 
   88   // Chess 960
   89   "setoption name UCI_Chess960 value true",
   90   "bbqnnrkr/pppppppp/8/8/8/8/PPPPPPPP/BBQNNRKR w KQkq - 0 1 moves g2g3 d7d5 d2d4 c8h3 c1g5 e8d6 g5e7 f7f6",
   91   "setoption name UCI_Chess960 value false"
   92 };
   93 
   94 } // namespace
   95 
   96 /// setup_bench() builds a list of UCI commands to be run by bench. There
   97 /// are five parameters: TT size in MB, number of search threads that
   98 /// should be used, the limit value spent for each position, a file name
   99 /// where to look for positions in FEN format and the type of the limit:
  100 /// depth, perft, nodes and movetime (in millisecs).
  101 ///
  102 /// bench -> search default positions up to depth 13
  103 /// bench 64 1 15 -> search default positions up to depth 15 (TT = 64MB)
  104 /// bench 64 4 5000 current movetime -> search current position with 4 threads for 5 sec
  105 /// bench 64 1 100000 default nodes -> search default positions for 100K nodes each
  106 /// bench 16 1 5 default perft -> run a perft 5 on default positions
  107 
  108 vector<string> setup_bench(const Position& current, istream& is) {
  109 
  110   vector<string> fens, list;
  111   string go, token;
  112 
  113   // Assign default values to missing arguments
  114   string ttSize    = (is >> token) ? token : "16";
  115   string threads   = (is >> token) ? token : "1";
  116   string limit     = (is >> token) ? token : "13";
  117   string fenFile   = (is >> token) ? token : "default";
  118   string limitType = (is >> token) ? token : "depth";
  119 
  120   go = limitType == "eval" ? "eval" : "go " + limitType + " " + limit;
  121 
  122   if (fenFile == "default")
  123       fens = Defaults;
  124 
  125   else if (fenFile == "current")
  126       fens.push_back(current.fen());
  127 
  128   else
  129   {
  130       string fen;
  131       ifstream file(fenFile);
  132 
  133       if (!file.is_open())
  134       {
  135           cerr << "Unable to open file " << fenFile << endl;
  136           exit(EXIT_FAILURE);
  137       }
  138 
  139       while (getline(file, fen))
  140           if (!fen.empty())
  141               fens.push_back(fen);
  142 
  143       file.close();
  144   }
  145 
  146   list.emplace_back("setoption name Threads value " + threads);
  147   list.emplace_back("setoption name Hash value " + ttSize);
  148   list.emplace_back("ucinewgame");
  149 
  150   for (const string& fen : fens)
  151       if (fen.find("setoption") != string::npos)
  152           list.emplace_back(fen);
  153       else
  154       {
  155           list.emplace_back("position fen " + fen);
  156           list.emplace_back(go);
  157       }
  158 
  159   return list;
  160 }