X-Git-Url: https://git.sesse.net/?p=remoteglot;a=blobdiff_plain;f=remoteglot.pl;h=56554a6d6b5589a65c13764a7d9ab0c5740bf624;hp=35fe887382eaabb2cc0e0dd7be9a8809c9bf4eea;hb=e3d784bc499b0ffc1678cbadebb06ef415e12c61;hpb=ce5f6b655d5daa42abb79961aa18cf7b90db1f74 diff --git a/remoteglot.pl b/remoteglot.pl index 35fe887..56554a6 100755 --- a/remoteglot.pl +++ b/remoteglot.pl @@ -74,19 +74,22 @@ my $engine = open_engine($remoteglotconf::engine_cmdline, 'E1', sub { handle_uci my $engine2 = open_engine($remoteglotconf::engine2_cmdline, 'E2', sub { handle_uci(@_, 0); }); my $last_move; my $last_text = ''; -my ($pos_waiting, $pos_calculating, $pos_calculating_second_engine); +my ($pos_calculating, $pos_calculating_second_engine); -uciprint($engine, "setoption name UCI_AnalyseMode value true"); -while (my ($key, $value) = each %remoteglotconf::engine_config) { - uciprint($engine, "setoption name $key value $value"); -} +# If not undef, we've started calculating this position but haven't ever given out +# any analysis for it, so we're on a forced timer to do so. +my $pos_calculating_started = undef; + +# If not undef, we've output this position, but without a main PV, so we're on +# _another_ forced timer to do so. +my $pos_pv_started = undef; +my $last_output_had_pv = 0; + +setoptions($engine, \%remoteglotconf::engine_config); uciprint($engine, "ucinewgame"); if (defined($engine2)) { - uciprint($engine2, "setoption name UCI_AnalyseMode value true"); - while (my ($key, $value) = each %remoteglotconf::engine2_config) { - uciprint($engine2, "setoption name $key value $value"); - } + setoptions($engine2, \%remoteglotconf::engine2_config); uciprint($engine2, "setoption name MultiPV value 500"); uciprint($engine2, "ucinewgame"); } @@ -124,7 +127,7 @@ if (defined($remoteglotconf::server)) { ); } if (defined($remoteglotconf::target)) { - if ($remoteglotconf::target =~ /^https?:/) { + if ($remoteglotconf::target =~ /^(?:\/|https?:)/) { fetch_pgn($remoteglotconf::target); } elsif (defined($t)) { $t->cmd("observe $remoteglotconf::target"); @@ -144,6 +147,11 @@ sub handle_uci { $line =~ s/ / /g; # Sometimes needed for Zappa Mexico print UCILOG localtime() . " $engine->{'tag'} <= $line\n"; + + # If we've sent a stop command, gobble up lines until we see bestmove. + return if ($engine->{'stopping'} && $line !~ /^bestmove/); + $engine->{'stopping'} = 0; + if ($line =~ /^info/) { my (@infos) = split / /, $line; shift @infos; @@ -156,24 +164,6 @@ sub handle_uci { parse_ids($engine, @ids); } - if ($line =~ /^bestmove/) { - if ($primary) { - return if (!$remoteglotconf::uci_assume_full_compliance); - if (defined($pos_waiting)) { - uciprint($engine, "position fen " . $pos_waiting->fen()); - uciprint($engine, "go infinite"); - - $pos_calculating = $pos_waiting; - $pos_waiting = undef; - } - } else { - $engine2->{'info'} = {}; - my $pos = $pos_waiting // $pos_calculating; - uciprint($engine2, "position fen " . $pos->fen()); - uciprint($engine2, "go infinite"); - $pos_calculating_second_engine = $pos; - } - } output(); } @@ -189,7 +179,7 @@ sub handle_fics { $t->cmd("moves"); } if ($line =~ /^Movelist for game /) { - my $pos = $pos_waiting // $pos_calculating; + my $pos = $pos_calculating; if (defined($pos)) { @uci_movelist = (); @pretty_movelist = (); @@ -222,10 +212,9 @@ sub handle_fics { if ($getting_movelist && $line =~ /^\s+ \{.*\} \s+ (?: \* | 1\/2-1\/2 | 0-1 | 1-0 )/x) { # End of movelist. - for my $pos ($pos_waiting, $pos_calculating) { - next if (!defined($pos)); - if ($pos->fen() eq $pos_for_movelist->fen()) { - $pos->{'history'} = \@pretty_movelist; + if (defined($pos_calculating)) { + if ($pos_calculating->fen() eq $pos_for_movelist->fen()) { + $pos_calculating->{'history'} = \@pretty_movelist; } } $getting_movelist = 0; @@ -262,9 +251,26 @@ sub handle_fics { # Starts periodic fetching of PGNs from the given URL. sub fetch_pgn { my ($url) = @_; - AnyEvent::HTTP::http_get($url, sub { - handle_pgn(@_, $url); - }); + if ($url =~ m#^/#) { # Local file. + eval { + local $/ = undef; + open my $fh, "<", $url + or die "$url: $!"; + my $pgn = <$fh>; + close $fh; + handle_pgn($pgn, '', $url); + }; + if ($@) { + warn "$url: $@"; + $http_timer = AnyEvent->timer(after => 1.0, cb => sub { + fetch_pgn($url); + }); + } + } else { + AnyEvent::HTTP::http_get($url, sub { + handle_pgn(@_, $url); + }); + } } my ($last_pgn_white, $last_pgn_black); @@ -300,7 +306,23 @@ sub handle_pgn { my $black = $pgn->black; $white =~ s/,.*//; # Remove first name. $black =~ s/,.*//; # Remove first name. - my $pos = Position->start_pos($white, $black); + my $tags = $pgn->tags(); + my $pos; + if (exists($tags->{'FEN'})) { + $pos = Position->from_fen($tags->{'FEN'}); + $pos->{'last_move'} = 'none'; + $pos->{'player_w'} = $white; + $pos->{'player_b'} = $black; + $pos->{'start_fen'} = $tags->{'FEN'}; + } else { + $pos = Position->start_pos($white, $black); + } + if (exists($tags->{'Variant'}) && + $tags->{'Variant'} =~ /960|fischer/i) { + $pos->{'chess960'} = 1; + } else { + $pos->{'chess960'} = 0; + } my $moves = $pgn->moves; my @uci_moves = (); my @repretty_moves = (); @@ -356,22 +378,18 @@ sub handle_position { my ($pos) = @_; find_clock_start($pos, $pos_calculating); - # if this is already in the queue, ignore it (just update the result) - if (defined($pos_waiting) && $pos->fen() eq $pos_waiting->fen()) { - $pos_waiting->{'result'} = $pos->{'result'}; - return; - } - - # if we're already chewing on this and there's nothing else in the queue, - # also ignore it - if (!defined($pos_waiting) && defined($pos_calculating) && - $pos->fen() eq $pos_calculating->fen()) { + # If we're already chewing on this and there's nothing else in the queue, + # ignore it. + if (defined($pos_calculating) && $pos->fen() eq $pos_calculating->fen()) { $pos_calculating->{'result'} = $pos->{'result'}; + for my $key ('white_clock', 'black_clock', 'white_clock_target', 'black_clock_target') { + $pos_calculating->{$key} //= $pos->{$key}; + } return; } - # if we're already thinking on something, stop and wait for the engine - # to approve + # If we're already thinking on something, stop and wait for the engine + # to approve. if (defined($pos_calculating)) { # Store the final data we have for this position in the history, # with the precise clock information we just got from the new @@ -379,40 +397,55 @@ sub handle_position { # the position.) # # Do not output anything new to the main analysis; that's - # going to be obsolete really soon. + # going to be obsolete really soon. (Exception: If we've never + # output anything for this move, ie., it didn't hit the 200ms + # limit, spit it out to the user anyway. It's probably a really + # fast blitz game or something, and it's good to show the moves + # as they come in even without great analysis.) $pos_calculating->{'white_clock'} = $pos->{'white_clock'}; $pos_calculating->{'black_clock'} = $pos->{'black_clock'}; delete $pos_calculating->{'white_clock_target'}; delete $pos_calculating->{'black_clock_target'}; - output_json(1); - if (!defined($pos_waiting)) { - uciprint($engine, "stop"); - } - if ($remoteglotconf::uci_assume_full_compliance) { - $pos_waiting = $pos; + if (defined($pos_calculating_started)) { + output_json(0); } else { - uciprint($engine, "position fen " . $pos->fen()); - uciprint($engine, "go infinite"); - $pos_calculating = $pos; + output_json(1); } - } else { - # it's wrong just to give the FEN (the move history is useful, - # and per the UCI spec, we should really have sent "ucinewgame"), - # but it's easier - uciprint($engine, "position fen " . $pos->fen()); - uciprint($engine, "go infinite"); - $pos_calculating = $pos; + $pos_calculating_started = [Time::HiRes::gettimeofday]; + $pos_pv_started = undef; + + # Ask the engine to stop; we will throw away its data until it + # sends us "bestmove", signaling the end of it. + $engine->{'stopping'} = 1; + uciprint($engine, "stop"); } + # It's wrong to just give the FEN (the move history is useful, + # and per the UCI spec, we should really have sent "ucinewgame"), + # but it's easier, and it works around a Stockfish repetition issue. + if ($engine->{'chess960'} != $pos->{'chess960'}) { + uciprint($engine, "setoption name UCI_Chess960 value " . ($pos->{'chess960'} ? 'true' : 'false')); + $engine->{'chess960'} = $pos->{'chess960'}; + } + uciprint($engine, "position fen " . $pos->fen()); + uciprint($engine, "go infinite"); + $pos_calculating = $pos; + $pos_calculating_started = [Time::HiRes::gettimeofday]; + $pos_pv_started = undef; + if (defined($engine2)) { if (defined($pos_calculating_second_engine)) { + $engine2->{'stopping'} = 1; uciprint($engine2, "stop"); - } else { - uciprint($engine2, "position fen " . $pos->fen()); - uciprint($engine2, "go infinite"); - $pos_calculating_second_engine = $pos; } + if ($engine2->{'chess960'} != $pos->{'chess960'}) { + uciprint($engine2, "setoption name UCI_Chess960 value " . ($pos->{'chess960'} ? 'true' : 'false')); + $engine2->{'chess960'} = $pos->{'chess960'}; + } + uciprint($engine2, "position fen " . $pos->fen()); + uciprint($engine2, "go infinite"); + $pos_calculating_second_engine = $pos; $engine2->{'info'} = {}; } @@ -447,6 +480,8 @@ sub parse_infos { } } + my $prev_depth = $info->{'depth1'} // $info->{'depth'}; + while (scalar @x > 0) { if ($x[0] eq 'multipv') { # Dealt with above @@ -473,6 +508,7 @@ sub parse_infos { delete $info->{'score_cp' . $mpv}; delete $info->{'score_mate' . $mpv}; + delete $info->{'splicepos' . $mpv}; while ($x[0] eq 'cp' || $x[0] eq 'mate') { if ($x[0] eq 'cp') { @@ -500,6 +536,14 @@ sub parse_infos { die "Unknown info '" . join(',', @x) . "'"; } + + my $now_depth = $info->{'depth1'} // $info->{'depth'}; + if (defined($prev_depth) && POSIX::floor($now_depth / 10) > POSIX::floor($prev_depth / 10)) { + my $d = POSIX::floor($now_depth / 10) * 10; # In case we skipped some. + my $cp = $info->{'score_cp1'} // $info->{'score_cp'}; + my $mate = $info->{'score_mate1'} // $info->{'score_mate'}; + push @{$info->{'lowdepth'}}, [ $d, $cp, $mate ]; + } } sub parse_ids { @@ -524,16 +568,20 @@ sub prettyprint_pv_no_cache { return (); } - my $pv = shift @pvs; - my ($from_row, $from_col, $to_row, $to_col, $promo) = parse_uci_move($pv); - my ($pretty, $nb) = $board->prettyprint_move($from_row, $from_col, $to_row, $to_col, $promo); - return ( $pretty, prettyprint_pv_no_cache($nb, @pvs) ); + my @ret = (); + for my $pv (@pvs) { + my ($from_row, $from_col, $to_row, $to_col, $promo) = parse_uci_move($pv); + my ($pretty, $nb) = $board->prettyprint_move($from_row, $from_col, $to_row, $to_col, $promo); + push @ret, $pretty; + $board = $nb; + } + return @ret; } sub prettyprint_pv { my ($pos, @pvs) = @_; - my $cachekey = $pos->fen() . join('', @pvs); + my $cachekey = join('', @pvs); if (exists($pos->{'prettyprint_cache'}{$cachekey})) { return @{$pos->{'prettyprint_cache'}{$cachekey}}; } else { @@ -564,8 +612,11 @@ sub complete_using_tbprobe { my @pv = @{$info->{'pv' . $mpv}}; my $key = $pos->fen() . " " . join('', @pv); my @moves = (); + my $splicepos; if (exists($tbprobe_cache{$key})) { - @moves = @{$tbprobe_cache{$key}}; + my $c = $tbprobe_cache{$key}; + @moves = @{$c->{'moves'}}; + $splicepos = $c->{'splicepos'}; } else { if ($mpv ne '') { # Force doing at least one move of the PV. @@ -574,29 +625,36 @@ sub complete_using_tbprobe { $pos = $pos->make_move(parse_uci_move($move)); } - while ($pos->num_pieces() > 6 && $#pv > -1) { + while ($pos->num_pieces() > 7 && $#pv > -1) { my $move = shift @pv; push @moves, $move; $pos = $pos->make_move(parse_uci_move($move)); } - return if ($pos->num_pieces() > 6); + return if ($pos->num_pieces() > 7); my $fen = $pos->fen(); - my $pgn_text = `fathom --path=/srv/syzygy "$fen"`; + my $pgn_text = `$remoteglotconf::fathom_cmdline "$fen"`; my $pgn = Chess::PGN::Parse->new(undef, $pgn_text); return if (!defined($pgn) || !$pgn->read_game() || ($pgn->result ne '0-1' && $pgn->result ne '1-0')); $pgn->quick_parse_game; - $info->{'pv' . $mpv} = \@moves; # Splice the PV from the tablebase onto what we have so far. + $splicepos = scalar @moves; for my $move (@{$pgn->moves}) { + last if $move eq '#'; + last if $move eq '1-0'; + last if $move eq '0-1'; + last if $move eq '1/2-1/2'; my $uci_move; ($pos, $uci_move) = $pos->make_pretty_move($move); push @moves, $uci_move; } - $tbprobe_cache{$key} = \@moves; + $tbprobe_cache{$key} = { + moves => \@moves, + splicepos => $splicepos + }; } $info->{'pv' . $mpv} = \@moves; @@ -607,6 +665,7 @@ sub complete_using_tbprobe { } else { $info->{'score_mate' . $mpv} = $matelen; } + $info->{'splicepos' . $mpv} = $splicepos; } sub output { @@ -614,23 +673,40 @@ sub output { return if (!defined($pos_calculating)); + my $info = $engine->{'info'}; + # Don't update too often. - my $age = Time::HiRes::tv_interval($latest_update); - if ($age < $remoteglotconf::update_max_interval) { - my $wait = $remoteglotconf::update_max_interval + 0.01 - $age; - $output_timer = AnyEvent->timer(after => $wait, cb => \&output); + my $wait = $remoteglotconf::update_max_interval - Time::HiRes::tv_interval($latest_update); + if (defined($pos_calculating_started)) { + my $new_pos_wait = $remoteglotconf::update_force_after_move - Time::HiRes::tv_interval($pos_calculating_started); + $wait = $new_pos_wait if ($new_pos_wait < $wait); + } + if (!$last_output_had_pv && has_pv($info)) { + if (!defined($pos_pv_started)) { + $pos_pv_started = [Time::HiRes::gettimeofday]; + } + # We just got initial PV, and we're in a hurry since we gave out a blank one earlier, + # so give us just 200ms more to increase the quality and then force a display. + my $new_pos_wait = $remoteglotconf::update_force_after_move - Time::HiRes::tv_interval($pos_pv_started); + $wait = $new_pos_wait if ($new_pos_wait < $wait); + } + if ($wait > 0.0) { + $output_timer = AnyEvent->timer(after => $wait + 0.01, cb => \&output); return; } + $pos_pv_started = undef; + + # We're outputting something for this position now, so the special handling + # for new positions is off. + undef $pos_calculating_started; - my $info = $engine->{'info'}; - # # If we have tablebase data from a previous lookup, replace the # engine data with the data from the tablebase. # my $fen = $pos_calculating->fen(); if (exists($tb_cache{$fen})) { - for my $key (qw(pv score_cp score_mate nodes nps depth seldepth tbhits)) { + for my $key (qw(pv score_cp score_mate nodes nps depth seldepth tbhits splicepos)) { delete $info->{$key . '1'}; delete $info->{$key}; } @@ -670,7 +746,7 @@ sub output { # specified. # if (exists($info->{'pv1'}) && !exists($info->{'pv2'})) { - for my $key (qw(pv score_cp score_mate nodes nps depth seldepth tbhits)) { + for my $key (qw(pv score_cp score_mate nodes nps depth seldepth tbhits splicepos)) { if (exists($info->{$key . '1'})) { $info->{$key} = $info->{$key . '1'}; } else { @@ -715,6 +791,14 @@ sub output { output_screen(); output_json(0); $latest_update = [Time::HiRes::gettimeofday]; + $last_output_had_pv = has_pv($info); +} + +sub has_pv { + my $info = shift; + return 1 if (exists($info->{'pv'}) && (scalar(@{$info->{'pv'}}) > 0)); + return 1 if (exists($info->{'pv1'}) && (scalar(@{$info->{'pv1'}}) > 0)); + return 0; } sub output_screen { @@ -792,8 +876,6 @@ sub output_screen { $text .= "\n\n"; } - #$text .= book_info($pos_calculating->fen(), $pos_calculating->{'board'}, $pos_calculating->{'toplay'}); - my @refutation_lines = (); if (defined($engine2)) { for (my $mpv = 1; $mpv < 500; ++$mpv) { @@ -872,6 +954,13 @@ sub output_json { $json->{'tablebase'} = $info->{'tablebase'}; $json->{'pv'} = [ prettyprint_pv($pos_calculating, @{$info->{'pv'}}) ]; + $json->{'lowdepth'} = {}; + if (exists($info->{'lowdepth'})) { + for my $ld (@{$info->{'lowdepth'}}) { + $json->{'lowdepth'}{$ld->[0]} = score_digest_inner($ld->[1], $ld->[2], undef, 0, $pos_calculating); + } + } + my %refutation_lines = (); my @refutation_lines = (); if (defined($engine2)) { @@ -892,6 +981,9 @@ sub output_json { move => $pretty_move, pv => \@pretty_pv, }; + if (exists($info->{'splicepos' . $mpv})) { + $refutation_lines{$pretty_move}->{'splicepos'} = $info->{'splicepos' . $mpv}; + } }; } } @@ -903,7 +995,13 @@ sub output_json { local $dbh->{AutoCommit} = 0; my $q = $dbh->prepare('SELECT * FROM scores WHERE id=?'); - my $pos = Position->start_pos('white', 'black'); + my $pos; + if (exists($pos_calculating->{'start_fen'})) { + $pos = Position->from_fen($pos_calculating->{'start_fen'}); + } else { + $pos = Position->start_pos('white', 'black'); + } + $pos->{'chess960'} = $pos_calculating->{'chess960'}; my $halfmove_num = 0; for my $move (@{$pos_calculating->{'history'}}) { my $id = id_for_pos($pos, $halfmove_num); @@ -1091,20 +1189,43 @@ sub short_score { # (with side-to-play information) score_sort_key. sub score_digest { my ($info, $pos, $mpv) = @_; + return score_digest_inner( + $info->{'score_cp' . $mpv}, + $info->{'score_mate' . $mpv}, + $info->{'splicepos' . $mpv}, + $info->{'tablebase'}, + $pos); +} - if (defined($info->{'score_mate' . $mpv})) { - my $mate = $info->{'score_mate' . $mpv}; +sub score_digest_inner { + my ($score, $mate, $sp, $tablebase, $pos) = @_; + if (defined($mate)) { if ($pos->{'toplay'} eq 'B') { $mate = -$mate; } - return ['m', $mate]; + if (defined($sp)) { + if ($mate > 0) { + return ['T', $sp]; + } else { + return ['t', $sp]; + } + } else { + if ($mate > 0) { + return ['M', $mate]; + } elsif ($mate < 0) { + return ['m', -$mate]; + } elsif ($pos->{'toplay'} eq 'B') { + return ['M', 0]; + } else { + return ['m', 0]; + } + } } else { - if (exists($info->{'score_cp' . $mpv})) { - my $score = $info->{'score_cp' . $mpv}; + if (defined($score)) { if ($pos->{'toplay'} eq 'B') { $score = -$score; } - if ($score == 0 && $info->{'tablebase'}) { + if ($score == 0 && $tablebase) { return ['d', undef]; } else { return ['cp', int($score)]; @@ -1123,10 +1244,19 @@ sub long_score { if ($pos->{'toplay'} eq 'B') { $mate = -$mate; } - if ($mate > 0) { - return sprintf "White mates in %u", $mate; + if (exists($info->{'splicepos' . $mpv})) { + my $sp = $info->{'splicepos' . $mpv}; + if ($mate > 0) { + return sprintf "White wins in %u", int(($sp + 1) * 0.5); + } else { + return sprintf "Black wins in %u", int(($sp + 1) * 0.5); + } } else { - return sprintf "Black mates in %u", -$mate; + if ($mate > 0) { + return sprintf "White mates in %u", $mate; + } else { + return sprintf "Black mates in %u", -$mate; + } } } else { if (exists($info->{'score_cp' . $mpv})) { @@ -1178,58 +1308,6 @@ sub plot_score { return undef; } -my %book_cache = (); -sub book_info { - my ($fen, $board, $toplay) = @_; - - if (exists($book_cache{$fen})) { - return $book_cache{$fen}; - } - - my $ret = `./booklook $fen`; - return "" if ($ret =~ /Not found/ || $ret eq ''); - - my @moves = (); - - for my $m (split /\n/, $ret) { - my ($move, $annotation, $win, $draw, $lose, $rating, $rating_div) = split /,/, $m; - - my $pmove; - if ($move eq '') { - $pmove = '(current)'; - } else { - ($pmove) = prettyprint_pv_no_cache($board, $move); - $pmove .= $annotation; - } - - my $score; - if ($toplay eq 'W') { - $score = 1.0 * $win + 0.5 * $draw + 0.0 * $lose; - } else { - $score = 0.0 * $win + 0.5 * $draw + 1.0 * $lose; - } - my $n = $win + $draw + $lose; - - my $percent; - if ($n == 0) { - $percent = " "; - } else { - $percent = sprintf "%4u%%", int(100.0 * $score / $n + 0.5); - } - - push @moves, [ $pmove, $n, $percent, $rating ]; - } - - @moves[1..$#moves] = sort { $b->[2] cmp $a->[2] } @moves[1..$#moves]; - - my $text = "Book moves:\n\n Perf. N Rating\n\n"; - for my $m (@moves) { - $text .= sprintf " %-10s %s %6u %4s\n", $m->[0], $m->[2], $m->[1], $m->[3] - } - - return $text; -} - sub extract_clock { my ($pgn, $pos) = @_; @@ -1298,7 +1376,7 @@ sub find_clock_start { } my $id = id_for_pos($pos); - my $clock_info = $dbh->selectrow_hashref('SELECT * FROM clock_info WHERE id=?', undef, $id); + my $clock_info = $dbh->selectrow_hashref('SELECT * FROM clock_info WHERE id=? AND COALESCE(white_clock_target, black_clock_target) >= EXTRACT(EPOCH FROM (CURRENT_TIMESTAMP - INTERVAL \'1 day\'));', undef, $id); if (defined($clock_info)) { $pos->{'white_clock'} //= $clock_info->{'white_clock'}; $pos->{'black_clock'} //= $clock_info->{'black_clock'}; @@ -1350,7 +1428,7 @@ sub find_clock_start { sub schedule_tb_lookup { return if (!defined($remoteglotconf::tb_serial_key)); - my $pos = $pos_waiting // $pos_calculating; + my $pos = $pos_calculating; return if (exists($tb_cache{$pos->fen()})); # If there's more than seven pieces, there's not going to be an answer, @@ -1362,7 +1440,7 @@ sub schedule_tb_lookup { return if ($tb_lookup_running); $tb_lookup_running = 1; - my $url = 'http://158.250.18.203:6904/tasks/addtask?auth.login=' . + my $url = 'http://tb7-api.chessok.com:6904/tasks/addtask?auth.login=' . $remoteglotconf::tb_serial_key . '&auth.password=aquarium&type=0&fen=' . URI::Escape::uri_escape($pos->fen()); @@ -1449,3 +1527,16 @@ sub parse_uci_move { my $promo = substr($move, 4, 1); return ($from_row, $from_col, $to_row, $to_col, $promo); } + +sub setoptions { + my ($engine, $config) = @_; + uciprint($engine, "setoption name UCI_AnalyseMode value true"); + uciprint($engine, "setoption name Analysis Contempt value Off"); + if (exists($config->{'Threads'})) { # Threads first, because clearing hash can be multithreaded then. + uciprint($engine, "setoption name Threads value " . $config->{'Threads'}); + } + while (my ($key, $value) = each %$config) { + next if $key eq 'Threads'; + uciprint($engine, "setoption name $key value $value"); + } +}