/*
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) 2015-2020 Marco Costalba, Joona Kiiski, Gary Linscott, Tord Romstad
+ Copyright (C) 2004-2024 The Stockfish developers (see AUTHORS file)
Stockfish is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
-#include <deque>
#include <iostream>
-#include <stack>
-#include <thread>
#include "bitboard.h"
+#include "misc.h"
#include "position.h"
-#include "search.h"
-#include "thread.h"
-#include "tt.h"
+#include "types.h"
#include "uci.h"
-#include "endgame.h"
-#include "syzygy/tbprobe.h"
+#include "tune.h"
-#include <grpc/grpc.h>
-#include <grpc++/server.h>
-#include <grpc++/server_builder.h>
-#include "hashprobe.h"
-#include "hashprobe.grpc.pb.h"
-#include "tt.h"
+using namespace Stockfish;
-using grpc::Server;
-using grpc::ServerBuilder;
-using grpc::ServerContext;
-using grpc::Status;
-using grpc::StatusCode;
-using namespace hashprobe;
-
-Status HashProbeImpl::Probe(ServerContext* context,
- const HashProbeRequest* request,
- HashProbeResponse *response) {
- Position pos;
- StateInfo st;
- pos.set(request->fen(), /*isChess960=*/false, &st, Threads.main());
- if (!pos.pos_is_ok()) {
- return Status(StatusCode::INVALID_ARGUMENT, "Invalid FEN");
- }
-
- bool invert = (pos.side_to_move() == BLACK);
- StateListPtr setup_states = StateListPtr(new std::deque<StateInfo>(1));
-
- ProbeMove(&pos, setup_states.get(), invert, response->mutable_root());
-
- MoveList<LEGAL> moves(pos);
- for (const ExtMove* em = moves.begin(); em != moves.end(); ++em) {
- HashProbeLine *line = response->add_line();
- FillMove(&pos, em->move, line->mutable_move());
- setup_states->push_back(StateInfo());
- pos.do_move(em->move, setup_states->back());
- ProbeMove(&pos, setup_states.get(), !invert, line);
- pos.undo_move(em->move);
- }
-
- return Status::OK;
-}
-
-void HashProbeImpl::FillMove(Position *pos, Move move, HashProbeMove* decoded) {
- if (!is_ok(move)) return;
-
- Square from = from_sq(move);
- Square to = to_sq(move);
-
- if (type_of(move) == CASTLING) {
- to = make_square(to > from ? FILE_G : FILE_C, rank_of(from));
- }
-
- Piece moved_piece = pos->moved_piece(move);
- std::string pretty;
- if (type_of(move) == CASTLING) {
- if (to > from) {
- pretty = "O-O";
- } else {
- pretty = "O-O-O";
- }
- } else if (type_of(moved_piece) == PAWN) {
- if (type_of(move) == ENPASSANT || pos->piece_on(to) != NO_PIECE) {
- // Capture.
- pretty = char('a' + file_of(from));
- pretty += "x";
- }
- pretty += UCI::square(to);
- if (type_of(move) == PROMOTION) {
- pretty += "=";
- pretty += " PNBRQK"[promotion_type(move)];
- }
- } else {
- pretty = " PNBRQK"[type_of(moved_piece)];
- Bitboard attackers = pos->attackers_to(to) & pos->pieces(color_of(moved_piece), type_of(moved_piece));
- if (more_than_one(attackers)) {
- // Remove all illegal moves to disambiguate.
- Bitboard att_copy = attackers;
- while (att_copy) {
- Square s = pop_lsb(&att_copy);
- Move m = make_move(s, to);
- if (!pos->pseudo_legal(m) || !pos->legal(m)) {
- attackers &= ~SquareBB[s];
- }
- }
- }
- if (more_than_one(attackers)) {
- // Disambiguate by file if possible.
- Bitboard attackers_this_file = attackers & file_bb(file_of(from));
- if (attackers != attackers_this_file) {
- pretty += char('a' + file_of(from));
- attackers = attackers_this_file;
- }
- if (more_than_one(attackers)) {
- // Still ambiguous, so need to disambiguate by rank.
- pretty += char('1' + rank_of(from));
- }
- }
-
- if (type_of(move) == ENPASSANT || pos->piece_on(to) != NO_PIECE) {
- pretty += "x";
- }
-
- pretty += UCI::square(to);
- }
-
- if (pos->gives_check(move)) {
- // Check if mate.
- StateInfo si;
- pos->do_move(move, si, true);
- if (MoveList<LEGAL>(*pos).size() > 0) {
- pretty += "+";
- } else {
- pretty += "#";
- }
- pos->undo_move(move);
- }
-
- decoded->set_pretty(pretty);
-}
-
-void HashProbeImpl::ProbeMove(Position* pos, std::deque<StateInfo>* setup_states, bool invert, HashProbeLine* response) {
- bool found;
- TTEntry *entry = TT.probe(pos->key(), found);
- response->set_found(found);
- if (found) {
- Value value = entry->value();
- Value eval = entry->eval();
- Bound bound = entry->bound();
-
- if (invert) {
- value = -value;
- eval = -eval;
- if (bound == BOUND_UPPER) {
- bound = BOUND_LOWER;
- } else if (bound == BOUND_LOWER) {
- bound = BOUND_UPPER;
- }
- }
-
- response->set_depth(entry->depth());
- FillValue(eval, response->mutable_eval());
- if (entry->depth() > DEPTH_NONE) {
- FillValue(value, response->mutable_value());
- }
- response->set_bound(HashProbeLine::ValueBound(bound));
-
- // Follow the PV until we hit an illegal move.
- std::stack<Move> pv;
- std::set<Key> seen;
- while (found && is_ok(entry->move()) &&
- pos->pseudo_legal(entry->move()) &&
- pos->legal(entry->move())) {
- FillMove(pos, entry->move(), response->add_pv());
- if (seen.count(pos->key())) break;
- pv.push(entry->move());
- seen.insert(pos->key());
- setup_states->push_back(StateInfo());
- pos->do_move(entry->move(), setup_states->back());
- entry = TT.probe(pos->key(), found);
- }
-
- // Unroll the PV back again, so the Position object remains unchanged.
- while (!pv.empty()) {
- pos->undo_move(pv.top());
- pv.pop();
- }
- }
-}
-
-void HashProbeImpl::FillValue(Value value, HashProbeScore* score) {
- if (abs(value) < VALUE_MATE - MAX_PLY) {
- score->set_score_type(HashProbeScore::SCORE_CP);
- score->set_score_cp(value * 100 / PawnValueEg);
- } else {
- score->set_score_type(HashProbeScore::SCORE_MATE);
- score->set_score_mate((value > 0 ? VALUE_MATE - value + 1 : -VALUE_MATE - value) / 2);
- }
-}
-
-HashProbeThread::HashProbeThread(const std::string &server_address) {
- builder.AddListeningPort(server_address, grpc::InsecureServerCredentials());
- builder.RegisterService(&service);
- server = std::move(builder.BuildAndStart());
- std::cout << "Server listening on " << server_address << std::endl;
- std::thread([this]{ server->Wait(); }).detach();
-}
-
-void HashProbeThread::Shutdown() {
- server->Shutdown();
-}
+int main(int argc, char* argv[]) {
-namespace PSQT {
- void init();
-}
+ std::cout << engine_info() << std::endl;
-int main(int argc, char* argv[]) {
+ Bitboards::init();
+ Position::init();
- std::cout << engine_info() << std::endl;
+ UCIEngine uci(argc, argv);
- UCI::init(Options);
- PSQT::init();
- Bitboards::init();
- Position::init();
- Bitbases::init();
- Endgames::init();
- Threads.set(Options["Threads"]);
- Search::clear(); // After threads are up
+ Tune::init(uci.engine_options());
- UCI::loop(argc, argv);
+ uci.loop();
- Threads.set(0);
- return 0;
+ return 0;
}
projects / stockfish / blobdiff