# Licensed under the GNU General Public License, version 2.
#
+use AnyEvent;
+use AnyEvent::Handle;
+use AnyEvent::HTTP;
+use Chess::PGN::Parse;
+use EV;
use Net::Telnet;
use FileHandle;
use IPC::Open2;
use Time::HiRes;
+use JSON::XS;
+require 'Position.pm';
+require 'Engine.pm';
+require 'config.pm';
use strict;
use warnings;
-
-# Configuration
-my $server = "freechess.org";
-my $target = "GMCarlsen";
-my $engine_cmdline = "'./Deep Rybka 4 SSE42 x64'";
-my $telltarget = undef; # undef to be silent
-my @tell_intervals = (5, 20, 60, 120, 240, 480, 960); # after each move
-my $uci_assume_full_compliance = 0; # dangerous :-)
-my @masters = (
- 'Sesse',
- 'Sessse',
- 'Sesssse',
- 'greatestguns',
- 'beuki'
-);
+no warnings qw(once);
# Program starts here
-$SIG{ALRM} = sub { output_screen(); };
+$SIG{ALRM} = sub { output(); };
+my $latest_update = undef;
+my $http_timer = undef;
$| = 1;
select(STDOUT);
# open the chess engine
-my $engine = open_engine($engine_cmdline);
-my %uciinfo = ();
-my %uciid = ();
-my ($last_move, $last_tell);
+my $engine = open_engine($remoteglotconf::engine_cmdline, 'E1', sub { handle_uci(@_, 1); });
+my $engine2 = open_engine($remoteglotconf::engine2_cmdline, 'E2', sub { handle_uci(@_, 0); });
+my $last_move;
my $last_text = '';
-my $last_told_text = '';
-my ($pos_waiting, $pos_calculating);
+my ($pos_waiting, $pos_calculating, $pos_calculating_second_engine);
uciprint($engine, "setoption name UCI_AnalyseMode value true");
-# uciprint($engine, "setoption name NalimovPath value /srv/tablebase");
-uciprint($engine, "setoption name NalimovUsage value Rarely");
-uciprint($engine, "setoption name Hash value 1024");
-# uciprint($engine, "setoption name MultiPV value 2");
+while (my ($key, $value) = each %remoteglotconf::engine_config) {
+ uciprint($engine, "setoption name $key value $value");
+}
uciprint($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 $value");
+ }
+ uciprint($engine2, "setoption name MultiPV value 500");
+ uciprint($engine2, "ucinewgame");
+}
+
print "Chess engine ready.\n";
# now talk to FICS
my $t = Net::Telnet->new(Timeout => 10, Prompt => '/fics% /');
$t->input_log(\*FICSLOG);
-$t->open($server);
-$t->print("SesseBOT");
+$t->open($remoteglotconf::server);
+$t->print($remoteglotconf::nick);
$t->waitfor('/Press return to enter the server/');
$t->cmd("");
$t->cmd("set shout 0");
$t->cmd("set seek 0");
$t->cmd("set style 12");
-$t->cmd("observe $target");
-
-# main loop
+$t->cmd("observe $remoteglotconf::target");
print "FICS ready.\n";
-while (1) {
- my $rin = '';
- my $rout;
- vec($rin, fileno($engine->{'read'}), 1) = 1;
- vec($rin, fileno($t), 1) = 1;
-
- my ($nfound, $timeleft) = select($rout=$rin, undef, undef, 5.0);
- my $sleep = 1.0;
-
- while (1) {
- my $line = $t->getline(Timeout => 0, errmode => 'return');
- last if (!defined($line));
-
- chomp $line;
- $line =~ tr/\r//d;
- if ($line =~ /^<12> /) {
- my $pos = style12_to_fen($line);
-
- # if this is already in the queue, ignore it
- next if (defined($pos_waiting) && $pos->{'fen'} eq $pos_waiting->{'fen'});
-
- # if we're already chewing on this and there's nothing else in the queue,
- # also ignore it
- next if (!defined($pos_waiting) && defined($pos_calculating) &&
- $pos->{'fen'} eq $pos_calculating->{'fen'});
-
- # if we're already thinking on something, stop and wait for the engine
- # to approve
- if (defined($pos_calculating)) {
- if (!defined($pos_waiting)) {
- uciprint($engine, "stop");
- }
- if ($uci_assume_full_compliance) {
- $pos_waiting = $pos;
- } else {
- uciprint($engine, "position fen " . $pos->{'fen'});
- uciprint($engine, "go infinite");
- $pos_calculating = $pos;
- }
- } else {
- # it's wrong just to give the FEN (the move history is useful,
- # and per the UCI spec, we should really have sent "ucinewgame"),
- # but it's easier
- uciprint($engine, "position fen " . $pos->{'fen'});
- uciprint($engine, "go infinite");
- $pos_calculating = $pos;
- }
- %uciinfo = ();
- $last_move = time;
-
- #
- # Output a command every move to note that we're
- # still paying attention -- this is a good tradeoff,
- # since if no move has happened in the last half
- # hour, the analysis/relay has most likely stopped
- # and we should stop hogging server resources.
- #
- $t->cmd("date");
- }
- if ($line =~ /^([A-Za-z]+)(?:\([A-Z]+\))* tells you: (.*)$/) {
- my ($who, $msg) = ($1, $2);
+my $ev1 = AnyEvent->io(
+ fh => fileno($t),
+ poll => 'r',
+ cb => sub { # what callback to execute
+ while (1) {
+ my $line = $t->getline(Timeout => 0, errmode => 'return');
+ return if (!defined($line));
- next if (grep { $_ eq $who } (@masters) == 0);
-
- if ($msg =~ /^fics (.*?)$/) {
- $t->cmd("tell $who Executing '$1' on FICS.");
- $t->cmd($1);
- } elsif ($msg =~ /^uci (.*?)$/) {
- $t->cmd("tell $who Sending '$1' to the engine.");
- print { $engine->{'write'} } "$1\n";
- } else {
- $t->cmd("tell $who Couldn't understand '$msg', sorry.");
- }
+ chomp $line;
+ $line =~ tr/\r//d;
+ handle_fics($line);
}
- #print "FICS: [$line]\n";
- $sleep = 0;
}
-
- # any fun on the UCI channel?
- if ($nfound > 0 && vec($rout, fileno($engine->{'read'}), 1) == 1) {
- my $line = read_line($engine->{'read'});
- handle_uci($line);
- $sleep = 0;
-
- # don't update too often
- Time::HiRes::alarm(0.2);
- }
-
- sleep $sleep;
-}
+);
+# Engine events have already been set up by Engine.pm.
+EV::run;
sub handle_uci {
- my ($line) = @_;
+ my ($engine, $line, $primary) = @_;
- chomp $line;
- $line =~ tr/\r//d;
$line =~ s/ / /g; # Sometimes needed for Zappa Mexico
- print UCILOG localtime() . " <= $line\n";
+ print UCILOG localtime() . " $engine->{'tag'} <= $line\n";
if ($line =~ /^info/) {
my (@infos) = split / /, $line;
shift @infos;
- parse_infos(@infos);
+ parse_infos($engine, @infos);
}
if ($line =~ /^id/) {
my (@ids) = split / /, $line;
shift @ids;
- parse_ids(@ids);
+ parse_ids($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();
+}
+
+sub handle_fics {
+ my $line = shift;
+ if ($line =~ /^<12> /) {
+ handle_position(Position->new($line));
+ }
+ if ($line =~ /^([A-Za-z]+)(?:\([A-Z]+\))* tells you: (.*)$/) {
+ my ($who, $msg) = ($1, $2);
+
+ next if (grep { $_ eq $who } (@remoteglotconf::masters) == 0);
+
+ if ($msg =~ /^fics (.*?)$/) {
+ $t->cmd("tell $who Executing '$1' on FICS.");
+ $t->cmd($1);
+ } elsif ($msg =~ /^uci (.*?)$/) {
+ $t->cmd("tell $who Sending '$1' to the engine.");
+ print { $engine->{'write'} } "$1\n";
+ } elsif ($msg =~ /^pgn (.*?)$/) {
+ my $url = $1;
+ $t->cmd("tell $who Starting to poll '$url'.");
+ AnyEvent::HTTP::http_get($url, sub {
+ handle_pgn(@_, $url);
+ });
+ } elsif ($msg =~ /^stoppgn$/) {
+ $t->cmd("tell $who Stopping poll.");
+ $http_timer = undef;
+ } elsif ($msg =~ /^quit$/) {
+ $t->cmd("tell $who Bye bye.");
+ exit;
+ } else {
+ $t->cmd("tell $who Couldn't understand '$msg', sorry.");
+ }
}
- if ($line =~ /^bestmove/ && $uci_assume_full_compliance) {
- if (defined($pos_waiting)) {
- uciprint($engine, "position fen " . $pos_waiting->{'fen'});
+ #print "FICS: [$line]\n";
+}
+
+sub handle_pgn {
+ my ($body, $header, $url) = @_;
+ my $pgn = Chess::PGN::Parse->new(undef, $body);
+ if (!defined($pgn) || !$pgn->read_game()) {
+ warn "Error in parsing PGN from $url\n";
+ } else {
+ $pgn->quick_parse_game;
+ my $pos = Position->start_pos($pgn->white, $pgn->black);
+ my $moves = $pgn->moves;
+ my @uci_moves = ();
+ for my $move (@$moves) {
+ my ($from_row, $from_col, $to_row, $to_col, $promo) = $pos->parse_pretty_move($move);
+ push @uci_moves, Board::move_to_uci_notation($from_row, $from_col, $to_row, $to_col, $promo);
+ $pos = $pos->make_move($from_row, $from_col, $to_row, $to_col, $promo);
+ }
+ $pos->{'history'} = \@uci_moves;
+ $pos->{'pretty_history'} = $moves;
+ handle_position($pos);
+ }
+
+ $http_timer = AnyEvent->timer(after => 1.0, cb => sub {
+ AnyEvent::HTTP::http_get($url, sub {
+ handle_pgn(@_, $url);
+ });
+ });
+}
+
+sub handle_position {
+ my ($pos) = @_;
+
+ # if this is already in the queue, ignore it
+ return if (defined($pos_waiting) && $pos->fen() eq $pos_waiting->fen());
+
+ # if we're already chewing on this and there's nothing else in the queue,
+ # also ignore it
+ return if (!defined($pos_waiting) && defined($pos_calculating) &&
+ $pos->fen() eq $pos_calculating->fen());
+
+ # if we're already thinking on something, stop and wait for the engine
+ # to approve
+ if (defined($pos_calculating)) {
+ if (!defined($pos_waiting)) {
+ uciprint($engine, "stop");
+ }
+ if ($remoteglotconf::uci_assume_full_compliance) {
+ $pos_waiting = $pos;
+ } else {
+ uciprint($engine, "position fen " . $pos->fen());
uciprint($engine, "go infinite");
+ $pos_calculating = $pos;
+ }
+ } else {
+ # it's wrong just to give the FEN (the move history is useful,
+ # and per the UCI spec, we should really have sent "ucinewgame"),
+ # but it's easier
+ uciprint($engine, "position fen " . $pos->fen());
+ uciprint($engine, "go infinite");
+ $pos_calculating = $pos;
+ }
- $pos_calculating = $pos_waiting;
- $pos_waiting = undef;
+ if (defined($engine2)) {
+ if (defined($pos_calculating_second_engine)) {
+ uciprint($engine2, "stop");
+ } else {
+ uciprint($engine2, "position fen " . $pos->fen());
+ uciprint($engine2, "go infinite");
+ $pos_calculating_second_engine = $pos;
}
+ $engine2->{'info'} = {};
}
+
+ $engine->{'info'} = {};
+ $last_move = time;
+
+ #
+ # Output a command every move to note that we're
+ # still paying attention -- this is a good tradeoff,
+ # since if no move has happened in the last half
+ # hour, the analysis/relay has most likely stopped
+ # and we should stop hogging server resources.
+ #
+ $t->cmd("date");
}
sub parse_infos {
- my (@x) = @_;
+ my ($engine, @x) = @_;
my $mpv = '';
+ my $info = $engine->{'info'};
+
+ # Search for "multipv" first of all, since e.g. Stockfish doesn't put it first.
+ for my $i (0..$#x - 1) {
+ if ($x[$i] eq 'multipv') {
+ $mpv = $x[$i + 1];
+ next;
+ }
+ }
+
while (scalar @x > 0) {
- if ($x[0] =~ 'multipv') {
+ if ($x[0] eq 'multipv') {
+ # Dealt with above
+ shift @x;
shift @x;
- $mpv = shift @x;
next;
}
- if ($x[0] =~ /^(currmove|currmovenumber|cpuload)$/) {
+ if ($x[0] eq 'currmove' || $x[0] eq 'currmovenumber' || $x[0] eq 'cpuload') {
my $key = shift @x;
my $value = shift @x;
- $uciinfo{$key} = $value;
+ $info->{$key} = $value;
next;
}
- if ($x[0] =~ /^(depth|seldepth|hashfull|time|nodes|nps|tbhits)$/) {
+ if ($x[0] eq 'depth' || $x[0] eq 'seldepth' || $x[0] eq 'hashfull' ||
+ $x[0] eq 'time' || $x[0] eq 'nodes' || $x[0] eq 'nps' ||
+ $x[0] eq 'tbhits') {
my $key = shift @x;
my $value = shift @x;
- $uciinfo{$key . $mpv} = $value;
+ $info->{$key . $mpv} = $value;
next;
}
if ($x[0] eq 'score') {
shift @x;
- delete $uciinfo{'score_cp' . $mpv};
- delete $uciinfo{'score_mate' . $mpv};
+ delete $info->{'score_cp' . $mpv};
+ delete $info->{'score_mate' . $mpv};
- while ($x[0] =~ /^(cp|mate|lowerbound|upperbound)$/) {
+ while ($x[0] eq 'cp' || $x[0] eq 'mate' || $x[0] eq 'lowerbound' || $x[0] eq 'upperbound') {
if ($x[0] eq 'cp') {
shift @x;
- $uciinfo{'score_cp' . $mpv} = shift @x;
+ $info->{'score_cp' . $mpv} = shift @x;
} elsif ($x[0] eq 'mate') {
shift @x;
- $uciinfo{'score_mate' . $mpv} = shift @x;
+ $info->{'score_mate' . $mpv} = shift @x;
} else {
shift @x;
}
next;
}
if ($x[0] eq 'pv') {
- $uciinfo{'pv' . $mpv} = [ @x[1..$#x] ];
+ $info->{'pv' . $mpv} = [ @x[1..$#x] ];
last;
}
if ($x[0] eq 'string' || $x[0] eq 'UCI_AnalyseMode' || $x[0] eq 'setting' || $x[0] eq 'contempt') {
}
sub parse_ids {
- my (@x) = @_;
+ my ($engine, @x) = @_;
while (scalar @x > 0) {
if ($x[0] =~ /^(name|author)$/) {
my $key = shift @x;
my $value = join(' ', @x);
- $uciid{$key} = $value;
+ $engine->{'id'}{$key} = $value;
last;
}
}
}
-sub style12_to_fen {
- my $str = shift;
- my %pos = ();
- my (@x) = split / /, $str;
-
- $pos{'board'} = [ @x[1..8] ];
- $pos{'toplay'} = $x[9];
-
- # the board itself
- my (@board) = @x[1..8];
- for my $rank (0..7) {
- $board[$rank] =~ s/(-+)/length($1)/ge;
- }
- my $fen = join('/', @board);
-
- # white/black to move
- $fen .= " ";
- $fen .= lc($x[9]);
-
- # castling
- my $castling = "";
- $castling .= "K" if ($x[11] == 1);
- $castling .= "Q" if ($x[12] == 1);
- $castling .= "k" if ($x[13] == 1);
- $castling .= "q" if ($x[14] == 1);
- $castling = "-" if ($castling eq "");
- # $castling = "-"; # chess960
- $fen .= " ";
- $fen .= $castling;
-
- # en passant
- my $ep = "-";
- if ($x[10] != -1) {
- my $col = $x[10];
- my $nep = (qw(a b c d e f g h))[$col];
-
- if ($x[9] eq 'B') {
- $nep .= "3";
- } else {
- $nep .= "6";
- }
-
- #
- # Showing the en passant square when actually no capture can be made
- # seems to confuse at least Rybka. Thus, check if there's actually
- # a pawn of the opposite side that can do the en passant move, and if
- # not, just lie -- it doesn't matter anyway. I'm unsure what's the
- # "right" thing as per the standard, though.
- #
- if ($x[9] eq 'B') {
- $ep = $nep if ($col > 0 && substr($pos{'board'}[4], $col-1, 1) eq 'p');
- $ep = $nep if ($col < 7 && substr($pos{'board'}[4], $col+1, 1) eq 'p');
- } else {
- $ep = $nep if ($col > 0 && substr($pos{'board'}[3], $col-1, 1) eq 'P');
- $ep = $nep if ($col < 7 && substr($pos{'board'}[3], $col+1, 1) eq 'P');
- }
- }
- $fen .= " ";
- $fen .= $ep;
-
- # half-move clock
- $fen .= " ";
- $fen .= $x[15];
-
- # full-move clock
- $fen .= " ";
- $fen .= $x[26];
-
- $pos{'fen'} = $fen;
- $pos{'move_num'} = $x[26];
- $pos{'last_move'} = $x[29];
-
- return \%pos;
-}
-
-sub prettyprint_pv {
+sub prettyprint_pv_no_cache {
my ($board, @pvs) = @_;
if (scalar @pvs == 0 || !defined($pvs[0])) {
return ();
}
-
- my @nb = @$board;
my $pv = shift @pvs;
- my $from_col = ord(substr($pv, 0, 1)) - ord('a');
- my $from_row = 7 - (ord(substr($pv, 1, 1)) - ord('1'));
- my $to_col = ord(substr($pv, 2, 1)) - ord('a');
- my $to_row = 7 - (ord(substr($pv, 3, 1)) - ord('1'));
-
- my $pretty;
- my $piece = substr($board->[$from_row], $from_col, 1);
+ my ($from_col, $from_row, $to_col, $to_row, $promo) = parse_uci_move($pv);
+ my ($pretty, $nb) = $board->prettyprint_move($from_row, $from_col, $to_row, $to_col, $promo);
+ return ( $pretty, prettyprint_pv_no_cache($nb, @pvs) );
+}
- if ($piece eq '-') {
- die "Invalid move $pv";
- }
+sub prettyprint_pv {
+ my ($pos, @pvs) = @_;
- # white short castling
- if ($pv eq 'e1g1' && $piece eq 'K') {
- # king
- substr($nb[7], 4, 1, '-');
- substr($nb[7], 6, 1, $piece);
-
- # rook
- substr($nb[7], 7, 1, '-');
- substr($nb[7], 5, 1, 'R');
-
- return ('0-0', prettyprint_pv(\@nb, @pvs));
+ my $cachekey = join('', @pvs);
+ if (exists($pos->{'prettyprint_cache'}{$cachekey})) {
+ return @{$pos->{'prettyprint_cache'}{$cachekey}};
+ } else {
+ my @res = prettyprint_pv_no_cache($pos->{'board'}, @pvs);
+ $pos->{'prettyprint_cache'}{$cachekey} = \@res;
+ return @res;
}
+}
- # white long castling
- if ($pv eq 'e1c1' && $piece eq 'K') {
- # king
- substr($nb[7], 4, 1, '-');
- substr($nb[7], 2, 1, $piece);
-
- # rook
- substr($nb[7], 0, 1, '-');
- substr($nb[7], 3, 1, 'R');
-
- return ('0-0-0', prettyprint_pv(\@nb, @pvs));
- }
+sub output {
+ #return;
- # black short castling
- if ($pv eq 'e8g8' && $piece eq 'k') {
- # king
- substr($nb[0], 4, 1, '-');
- substr($nb[0], 6, 1, $piece);
-
- # rook
- substr($nb[0], 7, 1, '-');
- substr($nb[0], 5, 1, 'r');
-
- return ('0-0', prettyprint_pv(\@nb, @pvs));
- }
+ return if (!defined($pos_calculating));
- # black long castling
- if ($pv eq 'e8c8' && $piece eq 'k') {
- # king
- substr($nb[0], 4, 1, '-');
- substr($nb[0], 2, 1, $piece);
-
- # rook
- substr($nb[0], 0, 1, '-');
- substr($nb[0], 3, 1, 'r');
-
- return ('0-0-0', prettyprint_pv(\@nb, @pvs));
+ # Don't update too often.
+ my $age = Time::HiRes::tv_interval($latest_update);
+ if ($age < $remoteglotconf::update_max_interval) {
+ Time::HiRes::alarm($remoteglotconf::update_max_interval + 0.01 - $age);
+ return;
}
-
- # check if the from-piece is a pawn
- if (lc($piece) eq 'p') {
- # attack?
- if ($from_col != $to_col) {
- $pretty = substr($pv, 0, 1) . 'x' . substr($pv, 2, 2);
-
- # en passant?
- if (substr($board->[$to_row], $to_col, 1) eq '-') {
- if ($piece eq 'p') {
- substr($nb[$to_row + 1], $to_col, 1, '-');
- } else {
- substr($nb[$to_row - 1], $to_col, 1, '-');
- }
- }
- } else {
- $pretty = substr($pv, 2, 2);
-
- if (length($pv) == 5) {
- # promotion
- $pretty .= "=";
- $pretty .= uc(substr($pv, 4, 1));
-
- if ($piece eq 'p') {
- $piece = substr($pv, 4, 1);
- } else {
- $piece = uc(substr($pv, 4, 1));
- }
- }
- }
- } else {
- $pretty = uc($piece);
-
- # see how many of these pieces could go here, in all
- my $num_total = 0;
- for my $col (0..7) {
- for my $row (0..7) {
- next unless (substr($board->[$row], $col, 1) eq $piece);
- ++$num_total if (can_reach($board, $piece, $row, $col, $to_row, $to_col));
- }
- }
-
- # see how many of these pieces from the given row could go here
- my $num_row = 0;
- for my $col (0..7) {
- next unless (substr($board->[$from_row], $col, 1) eq $piece);
- ++$num_row if (can_reach($board, $piece, $from_row, $col, $to_row, $to_col));
- }
-
- # and same for columns
- my $num_col = 0;
- for my $row (0..7) {
- next unless (substr($board->[$row], $from_col, 1) eq $piece);
- ++$num_col if (can_reach($board, $piece, $row, $from_col, $to_row, $to_col));
- }
-
- # see if we need to disambiguate
- if ($num_total > 1) {
- if ($num_col == 1) {
- $pretty .= substr($pv, 0, 1);
- } elsif ($num_row == 1) {
- $pretty .= substr($pv, 1, 1);
- } else {
- $pretty .= substr($pv, 0, 2);
+
+ my $info = $engine->{'info'};
+
+ #
+ # Some programs _always_ report MultiPV, even with only one PV.
+ # In this case, we simply use that data as if MultiPV was never
+ # specified.
+ #
+ if (exists($info->{'pv1'}) && !exists($info->{'pv2'})) {
+ for my $key (qw(pv score_cp score_mate nodes nps depth seldepth tbhits)) {
+ if (exists($info->{$key . '1'})) {
+ $info->{$key} = $info->{$key . '1'};
}
}
-
- # attack?
- if (substr($board->[$to_row], $to_col, 1) ne '-') {
- $pretty .= 'x';
- }
-
- $pretty .= substr($pv, 2, 2);
- }
-
- # update the board
- substr($nb[$from_row], $from_col, 1, '-');
- substr($nb[$to_row], $to_col, 1, $piece);
-
- if (in_mate(\@nb)) {
- $pretty .= '#';
- } elsif (in_check(\@nb) ne 'none') {
- $pretty .= '+';
}
-
- return ($pretty, prettyprint_pv(\@nb, @pvs));
-}
-
-sub output_screen {
- #return;
- return if (!defined($pos_calculating));
-
#
# Check the PVs first. if they're invalid, just wait, as our data
# is most likely out of sync. This isn't a very good solution, as
#
eval {
my $dummy;
- if (exists($uciinfo{'pv'})) {
- $dummy = prettyprint_pv($pos_calculating->{'board'}, @{$uciinfo{'pv'}});
+ if (exists($info->{'pv'})) {
+ $dummy = prettyprint_pv($pos_calculating, @{$info->{'pv'}});
}
my $mpv = 1;
- while (exists($uciinfo{'pv' . $mpv})) {
- $dummy = prettyprint_pv($pos_calculating->{'board'}, @{$uciinfo{'pv' . $mpv}});
+ while (exists($info->{'pv' . $mpv})) {
+ $dummy = prettyprint_pv($pos_calculating, @{$info->{'pv' . $mpv}});
++$mpv;
}
};
if ($@) {
- %uciinfo = ();
+ $engine->{'info'} = {};
return;
}
+ output_screen();
+ output_json();
+ $latest_update = [Time::HiRes::gettimeofday];
+}
+
+sub output_screen {
+ my $info = $engine->{'info'};
+ my $id = $engine->{'id'};
+
my $text = 'Analysis';
if ($pos_calculating->{'last_move'} ne 'none') {
if ($pos_calculating->{'toplay'} eq 'W') {
} else {
$text .= sprintf ' after %u. %s', $pos_calculating->{'move_num'}, $pos_calculating->{'last_move'};
}
- if (exists($uciid{'name'})) {
+ if (exists($id->{'name'})) {
$text .= ',';
}
}
- if (exists($uciid{'name'})) {
- $text .= " by $uciid{'name'}:\n\n";
+ if (exists($id->{'name'})) {
+ $text .= " by $id->{'name'}:\n\n";
} else {
$text .= ":\n\n";
}
return unless (exists($pos_calculating->{'board'}));
- #
- # Some programs _always_ report MultiPV, even with only one PV.
- # In this case, we simply use that data as if MultiPV was never
- # specified.
- #
- if (exists($uciinfo{'pv1'}) && !exists($uciinfo{'pv2'})) {
- for my $key (qw(pv score_cp score_mate nodes nps depth seldepth tbhits)) {
- if (exists($uciinfo{$key . '1'}) && !exists($uciinfo{$key})) {
- $uciinfo{$key} = $uciinfo{$key . '1'};
- }
- }
- }
-
- if (exists($uciinfo{'pv1'}) && exists($uciinfo{'pv2'})) {
+ if (exists($info->{'pv1'}) && exists($info->{'pv2'})) {
# multi-PV
my $mpv = 1;
- while (exists($uciinfo{'pv' . $mpv})) {
+ while (exists($info->{'pv' . $mpv})) {
$text .= sprintf " PV%2u", $mpv;
- my $score = short_score(\%uciinfo, $pos_calculating, $mpv);
+ my $score = short_score($info, $pos_calculating, $mpv);
$text .= " ($score)" if (defined($score));
my $tbhits = '';
- if (exists($uciinfo{'tbhits' . $mpv}) && $uciinfo{'tbhits' . $mpv} > 0) {
- if ($uciinfo{'tbhits' . $mpv} == 1) {
+ if (exists($info->{'tbhits' . $mpv}) && $info->{'tbhits' . $mpv} > 0) {
+ if ($info->{'tbhits' . $mpv} == 1) {
$tbhits = ", 1 tbhit";
} else {
- $tbhits = sprintf ", %u tbhits", $uciinfo{'tbhits' . $mpv};
+ $tbhits = sprintf ", %u tbhits", $info->{'tbhits' . $mpv};
}
}
- if (exists($uciinfo{'nodes' . $mpv}) && exists($uciinfo{'nps' . $mpv}) && exists($uciinfo{'depth' . $mpv})) {
+ if (exists($info->{'nodes' . $mpv}) && exists($info->{'nps' . $mpv}) && exists($info->{'depth' . $mpv})) {
$text .= sprintf " (%5u kn, %3u kn/s, %2u ply$tbhits)",
- $uciinfo{'nodes' . $mpv} / 1000, $uciinfo{'nps' . $mpv} / 1000, $uciinfo{'depth' . $mpv};
+ $info->{'nodes' . $mpv} / 1000, $info->{'nps' . $mpv} / 1000, $info->{'depth' . $mpv};
}
$text .= ":\n";
- $text .= " " . join(', ', prettyprint_pv($pos_calculating->{'board'}, @{$uciinfo{'pv' . $mpv}})) . "\n";
+ $text .= " " . join(', ', prettyprint_pv($pos_calculating, @{$info->{'pv' . $mpv}})) . "\n";
$text .= "\n";
++$mpv;
}
} else {
# single-PV
- my $score = long_score(\%uciinfo, $pos_calculating, '');
+ my $score = long_score($info, $pos_calculating, '');
$text .= " $score\n" if defined($score);
- $text .= " PV: " . join(', ', prettyprint_pv($pos_calculating->{'board'}, @{$uciinfo{'pv'}}));
+ $text .= " PV: " . join(', ', prettyprint_pv($pos_calculating, @{$info->{'pv'}}));
$text .= "\n";
- if (exists($uciinfo{'nodes'}) && exists($uciinfo{'nps'}) && exists($uciinfo{'depth'})) {
+ if (exists($info->{'nodes'}) && exists($info->{'nps'}) && exists($info->{'depth'})) {
$text .= sprintf " %u nodes, %7u nodes/sec, depth %u ply",
- $uciinfo{'nodes'}, $uciinfo{'nps'}, $uciinfo{'depth'};
+ $info->{'nodes'}, $info->{'nps'}, $info->{'depth'};
}
- if (exists($uciinfo{'tbhits'}) && $uciinfo{'tbhits'} > 0) {
- if ($uciinfo{'tbhits'} == 1) {
- $text .= ", one Nalimov hit";
+ if (exists($info->{'seldepth'})) {
+ $text .= sprintf " (%u selective)", $info->{'seldepth'};
+ }
+ if (exists($info->{'tbhits'}) && $info->{'tbhits'} > 0) {
+ if ($info->{'tbhits'} == 1) {
+ $text .= ", one Syzygy hit";
} else {
- $text .= sprintf ", %u Nalimov hits", $uciinfo{'tbhits'};
+ $text .= sprintf ", %u Syzygy hits", $info->{'tbhits'};
}
}
- if (exists($uciinfo{'seldepth'})) {
- $text .= sprintf " (%u selective)", $uciinfo{'seldepth'};
- }
- $text .= "\n\n";
+ $text .= "\n\n";
}
- #$text .= book_info($pos_calculating->{'fen'}, $pos_calculating->{'board'}, $pos_calculating->{'toplay'});
+ #$text .= book_info($pos_calculating->fen(), $pos_calculating->{'board'}, $pos_calculating->{'toplay'});
- if ($last_text ne $text) {
- print "\e[H\e[2J"; # clear the screen
- print $text;
- $last_text = $text;
- }
-
- # Now construct the tell text, if any
- return if (!defined($telltarget));
-
- my $tell_text = '';
-
- if (exists($uciid{'name'})) {
- $tell_text .= "Analysis by $uciid{'name'} -- see http://analysis.sesse.net/ for more information\n";
- } else {
- $tell_text .= "Computer analysis -- http://analysis.sesse.net/ for more information\n";
- }
-
- if (exists($uciinfo{'pv1'}) && exists($uciinfo{'pv2'})) {
- # multi-PV
- my $mpv = 1;
- while (exists($uciinfo{'pv' . $mpv})) {
- $tell_text .= sprintf " PV%2u", $mpv;
- my $score = short_score(\%uciinfo, $pos_calculating, $mpv);
- $tell_text .= " ($score)" if (defined($score));
-
- if (exists($uciinfo{'depth' . $mpv})) {
- $tell_text .= sprintf " (%2u ply)", $uciinfo{'depth' . $mpv};
- }
+ my @refutation_lines = ();
+ if (defined($engine2)) {
+ for (my $mpv = 1; $mpv < 500; ++$mpv) {
+ my $info = $engine2->{'info'};
+ last if (!exists($info->{'pv' . $mpv}));
+ eval {
+ my $pv = $info->{'pv' . $mpv};
- $tell_text .= ": ";
- $tell_text .= join(', ', prettyprint_pv($pos_calculating->{'board'}, @{$uciinfo{'pv' . $mpv}}));
- $tell_text .= "\n";
- ++$mpv;
- }
- } else {
- # single-PV
- my $score = long_score(\%uciinfo, $pos_calculating, '');
- $tell_text .= " $score\n" if defined($score);
- $tell_text .= " PV: " . join(', ', prettyprint_pv($pos_calculating->{'board'}, @{$uciinfo{'pv'}}));
- if (exists($uciinfo{'depth'})) {
- $tell_text .= sprintf " (depth %u ply)", $uciinfo{'depth'};
+ my $pretty_move = join('', prettyprint_pv($pos_calculating_second_engine, $pv->[0]));
+ my @pretty_pv = prettyprint_pv($pos_calculating_second_engine, @$pv);
+ if (scalar @pretty_pv > 5) {
+ @pretty_pv = @pretty_pv[0..4];
+ push @pretty_pv, "...";
+ }
+ my $key = $pretty_move;
+ my $line = sprintf(" %-6s %6s %3s %s",
+ $pretty_move,
+ short_score($info, $pos_calculating_second_engine, $mpv, 0),
+ "d" . $info->{'depth' . $mpv},
+ join(', ', @pretty_pv));
+ push @refutation_lines, [ $key, $line ];
+ };
}
- $tell_text .= "\n";
}
- # see if a new tell is called for -- it is if the delay has expired _and_
- # this is not simply a repetition of the last one
- if ($last_told_text ne $tell_text) {
- my $now = time;
- for my $iv (@tell_intervals) {
- last if ($now - $last_move < $iv);
- next if ($last_tell - $last_move >= $iv);
-
- for my $line (split /\n/, $tell_text) {
- $t->print("tell $telltarget [$target] $line");
- }
-
- $last_told_text = $text;
- $last_tell = $now;
-
- last;
+ if ($#refutation_lines >= 0) {
+ $text .= "Shallow search of all legal moves:\n\n";
+ for my $line (sort { $a->[0] cmp $b->[0] } @refutation_lines) {
+ $text .= $line->[1] . "\n";
}
- }
-}
+ $text .= "\n\n";
+ }
-sub find_kings {
- my $board = shift;
- my ($wkr, $wkc, $bkr, $bkc);
-
- for my $row (0..7) {
- for my $col (0..7) {
- my $piece = substr($board->[$row], $col, 1);
- if ($piece eq 'K') {
- ($wkr, $wkc) = ($row, $col);
- } elsif ($piece eq 'k') {
- ($bkr, $bkc) = ($row, $col);
- }
- }
+ if ($last_text ne $text) {
+ print "\e[H\e[2J"; # clear the screen
+ print $text;
+ $last_text = $text;
}
-
- return ($wkr, $wkc, $bkr, $bkc);
}
-sub in_mate {
- my $board = shift;
- my $check = in_check($board);
- return 0 if ($check eq 'none');
-
- # try all possible moves for the side in check
- for my $row (0..7) {
- for my $col (0..7) {
- my $piece = substr($board->[$row], $col, 1);
- next if ($piece eq '-');
-
- if ($check eq 'white') {
- next if ($piece eq lc($piece));
- } else {
- next if ($piece eq uc($piece));
- }
-
- for my $dest_row (0..7) {
- for my $dest_col (0..7) {
- next if ($row == $dest_row && $col == $dest_col);
- next unless (can_reach($board, $piece, $row, $col, $dest_row, $dest_col));
-
- my @nb = @$board;
- substr($nb[$row], $col, 1, '-');
- substr($nb[$dest_row], $dest_col, 1, $piece);
-
- my $new_check = in_check(\@nb);
- return 0 if ($new_check ne $check && $new_check ne 'both');
- }
- }
- }
- }
-
- # nothing to do; mate
- return 1;
+sub output_json {
+ my $info = $engine->{'info'};
+
+ my $json = {};
+ $json->{'position'} = $pos_calculating->to_json_hash();
+ $json->{'id'} = $engine->{'id'};
+ $json->{'score'} = long_score($info, $pos_calculating, '');
+
+ $json->{'nodes'} = $info->{'nodes'};
+ $json->{'nps'} = $info->{'nps'};
+ $json->{'depth'} = $info->{'depth'};
+ $json->{'tbhits'} = $info->{'tbhits'};
+ $json->{'seldepth'} = $info->{'seldepth'};
+
+ # single-PV only for now
+ $json->{'pv_uci'} = $info->{'pv'};
+ $json->{'pv_pretty'} = [ prettyprint_pv($pos_calculating, @{$info->{'pv'}}) ];
+
+ my %refutation_lines = ();
+ my @refutation_lines = ();
+ if (defined($engine2)) {
+ for (my $mpv = 1; $mpv < 500; ++$mpv) {
+ my $info = $engine2->{'info'};
+ my $pretty_move = "";
+ my @pretty_pv = ();
+ last if (!exists($info->{'pv' . $mpv}));
+
+ eval {
+ my $pv = $info->{'pv' . $mpv};
+ my $pretty_move = join('', prettyprint_pv($pos_calculating, $pv->[0]));
+ my @pretty_pv = prettyprint_pv($pos_calculating, @$pv);
+ $refutation_lines{$pv->[0]} = {
+ sort_key => $pretty_move,
+ depth => $info->{'depth' . $mpv},
+ score_sort_key => score_sort_key($info, $pos_calculating, $mpv, 0),
+ pretty_score => short_score($info, $pos_calculating, $mpv, 0),
+ pretty_move => $pretty_move,
+ pv_pretty => \@pretty_pv,
+ };
+ $refutation_lines{$pv->[0]}->{'pv_uci'} = $pv;
+ };
+ }
+ }
+ $json->{'refutation_lines'} = \%refutation_lines;
+
+ open my $fh, ">/srv/analysis.sesse.net/www/analysis.json.tmp"
+ or return;
+ print $fh JSON::XS::encode_json($json);
+ close $fh;
+ rename("/srv/analysis.sesse.net/www/analysis.json.tmp", "/srv/analysis.sesse.net/www/analysis.json");
}
-sub in_check {
- my $board = shift;
- my ($black_check, $white_check) = (0, 0);
-
- my ($wkr, $wkc, $bkr, $bkc) = find_kings($board);
-
- # check all pieces for the possibility of threatening the two kings
- for my $row (0..7) {
- for my $col (0..7) {
- my $piece = substr($board->[$row], $col, 1);
- next if ($piece eq '-');
-
- if (uc($piece) eq $piece) {
- # white piece
- $black_check = 1 if (can_reach($board, $piece, $row, $col, $bkr, $bkc));
- } else {
- # black piece
- $white_check = 1 if (can_reach($board, $piece, $row, $col, $wkr, $wkc));
- }
- }
- }
-
- if ($black_check && $white_check) {
- return 'both';
- } elsif ($black_check) {
- return 'black';
- } elsif ($white_check) {
- return 'white';
- } else {
- return 'none';
- }
+sub uciprint {
+ my ($engine, $msg) = @_;
+ $engine->print($msg);
+ print UCILOG localtime() . " $engine->{'tag'} => $msg\n";
}
-sub can_reach {
- my ($board, $piece, $from_row, $from_col, $to_row, $to_col) = @_;
-
- # can't eat your own piece
- my $dest_piece = substr($board->[$to_row], $to_col, 1);
- if ($dest_piece ne '-') {
- return 0 if (($piece eq lc($piece)) == ($dest_piece eq lc($dest_piece)));
- }
+sub short_score {
+ my ($info, $pos, $mpv, $invert) = @_;
- if (lc($piece) eq 'k') {
- return (abs($from_row - $to_row) <= 1 && abs($from_col - $to_col) <= 1);
+ $invert //= 0;
+ if ($pos->{'toplay'} eq 'B') {
+ $invert = !$invert;
}
- if (lc($piece) eq 'r') {
- return 0 unless ($from_row == $to_row || $from_col == $to_col);
-
- # check that there's a clear passage
- if ($from_row == $to_row) {
- if ($from_col > $to_col) {
- ($to_col, $from_col) = ($from_col, $to_col);
- }
-
- for my $c (($from_col+1)..($to_col-1)) {
- my $middle_piece = substr($board->[$to_row], $c, 1);
- return 0 if ($middle_piece ne '-');
- }
- return 1;
+ if (defined($info->{'score_mate' . $mpv})) {
+ if ($invert) {
+ return sprintf "M%3d", -$info->{'score_mate' . $mpv};
} else {
- if ($from_row > $to_row) {
- ($to_row, $from_row) = ($from_row, $to_row);
+ return sprintf "M%3d", $info->{'score_mate' . $mpv};
+ }
+ } else {
+ if (exists($info->{'score_cp' . $mpv})) {
+ my $score = $info->{'score_cp' . $mpv} * 0.01;
+ if ($score == 0) {
+ return " 0.00";
}
-
- for my $r (($from_row+1)..($to_row-1)) {
- my $middle_piece = substr($board->[$r], $to_col, 1);
- return 0 if ($middle_piece ne '-');
+ if ($invert) {
+ $score = -$score;
}
-
- return 1;
- }
- }
- if (lc($piece) eq 'b') {
- return 0 unless (abs($from_row - $to_row) == abs($from_col - $to_col));
-
- my $dr = ($to_row - $from_row) / abs($to_row - $from_row);
- my $dc = ($to_col - $from_col) / abs($to_col - $from_col);
-
- my $r = $from_row + $dr;
- my $c = $from_col + $dc;
-
- while ($r != $to_row) {
- my $middle_piece = substr($board->[$r], $c, 1);
- return 0 if ($middle_piece ne '-');
-
- $r += $dr;
- $c += $dc;
- }
-
- return 1;
- }
- if (lc($piece) eq 'n') {
- my $diff_r = abs($from_row - $to_row);
- my $diff_c = abs($from_col - $to_col);
- return 1 if ($diff_r == 2 && $diff_c == 1);
- return 1 if ($diff_r == 1 && $diff_c == 2);
- return 0;
- }
- if ($piece eq 'q') {
- return (can_reach($board, 'r', $from_row, $from_col, $to_row, $to_col) ||
- can_reach($board, 'b', $from_row, $from_col, $to_row, $to_col));
- }
- if ($piece eq 'Q') {
- return (can_reach($board, 'R', $from_row, $from_col, $to_row, $to_col) ||
- can_reach($board, 'B', $from_row, $from_col, $to_row, $to_col));
- }
-
- # TODO: en passant
- if ($piece eq 'p') {
- # black pawn
- if ($to_col == $from_col && $to_row == $from_row + 1) {
- return ($dest_piece eq '-');
- }
- if ($to_col == $from_col && $from_row == 1 && $to_row == 3) {
- my $middle_piece = substr($board->[2], $to_col, 1);
- return ($dest_piece eq '-' && $middle_piece eq '-');
- }
- if (abs($to_col - $from_col) == 1 && $to_row == $from_row + 1) {
- return ($dest_piece ne '-');
- }
- return 0;
- }
- if ($piece eq 'P') {
- # white pawn
- if ($to_col == $from_col && $to_row == $from_row - 1) {
- return ($dest_piece eq '-');
- }
- if ($to_col == $from_col && $from_row == 6 && $to_row == 4) {
- my $middle_piece = substr($board->[5], $to_col, 1);
- return ($dest_piece eq '-' && $middle_piece eq '-');
- }
- if (abs($to_col - $from_col) == 1 && $to_row == $from_row - 1) {
- return ($dest_piece ne '-');
+ return sprintf "%+5.2f", $score;
}
- return 0;
}
-
- # unknown piece
- return 0;
-}
-sub uciprint {
- my ($engine, $msg) = @_;
- print { $engine->{'write'} } "$msg\n";
- print UCILOG localtime() . " => $msg\n";
+ return undef;
}
-sub short_score {
- my ($uciinfo, $pos, $mpv) = @_;
+sub score_sort_key {
+ my ($info, $pos, $mpv, $invert) = @_;
- if (defined($uciinfo{'score_mate' . $mpv})) {
- return sprintf "M%3d", $uciinfo{'score_mate' . $mpv};
+ if (defined($info->{'score_mate' . $mpv})) {
+ if ($invert) {
+ return 99999 - $info->{'score_mate' . $mpv};
+ } else {
+ return -(99999 - $info->{'score_mate' . $mpv});
+ }
} else {
- if (exists($uciinfo{'score_cp' . $mpv})) {
- my $score = $uciinfo{'score_cp' . $mpv} * 0.01;
- if ($pos->{'toplay'} eq 'B') {
+ if (exists($info->{'score_cp' . $mpv})) {
+ my $score = $info->{'score_cp' . $mpv};
+ if ($invert) {
$score = -$score;
}
- return sprintf "%+5.2f", $score;
+ return $score;
}
}
}
sub long_score {
- my ($uciinfo, $pos, $mpv) = @_;
+ my ($info, $pos, $mpv) = @_;
- if (defined($uciinfo{'score_mate' . $mpv})) {
- my $mate = $uciinfo{'score_mate' . $mpv};
+ if (defined($info->{'score_mate' . $mpv})) {
+ my $mate = $info->{'score_mate' . $mpv};
if ($pos->{'toplay'} eq 'B') {
$mate = -$mate;
}
return sprintf "Black mates in %u", -$mate;
}
} else {
- if (exists($uciinfo{'score_cp' . $mpv})) {
- my $score = $uciinfo{'score_cp' . $mpv} * 0.01;
+ if (exists($info->{'score_cp' . $mpv})) {
+ my $score = $info->{'score_cp' . $mpv} * 0.01;
+ if ($score == 0) {
+ return "Score: 0.00";
+ }
if ($pos->{'toplay'} eq 'B') {
$score = -$score;
}
if ($move eq '') {
$pmove = '(current)';
} else {
- ($pmove) = prettyprint_pv($board, $move);
+ ($pmove) = prettyprint_pv_no_cache($board, $move);
$pmove .= $annotation;
}
}
sub open_engine {
- my $cmdline = shift;
- my ($uciread, $uciwrite);
- my $pid = IPC::Open2::open2($uciread, $uciwrite, $cmdline);
-
- my $engine = {
- pid => $pid,
- read => $uciread,
- write => $uciwrite
- };
-
- uciprint($engine, "uci");
-
- # gobble the options
- while (<$uciread>) {
- /uciok/ && last;
- handle_uci($_);
- }
-
- return $engine;
+ my ($cmdline, $tag, $cb) = @_;
+ return undef if (!defined($cmdline));
+ return Engine->open($cmdline, $tag, $cb);
}
-sub read_line {
- my $fh = shift;
-
- #
- # Read until we've got a full line -- if the engine sends part of
- # a line and then stops we're pretty much hosed, but that should
- # never happen.
- #
- my $line = '';
- while ($line !~ /\n/) {
- my $tmp;
- my $ret = sysread $engine->{'read'}, $tmp, 1;
-
- if (!defined($ret)) {
- next if ($!{EINTR});
- die "error in reading from the UCI engine: $!";
- } elsif ($ret == 0) {
- die "EOF from UCI engine";
- }
+sub col_letter_to_num {
+ return ord(shift) - ord('a');
+}
- $line .= $tmp;
- }
+sub row_letter_to_num {
+ return 7 - (ord(shift) - ord('1'));
+}
- $line =~ tr/\r\n//d;
- return $line;
+sub parse_uci_move {
+ my $move = shift;
+ my $from_col = col_letter_to_num(substr($move, 0, 1));
+ my $from_row = row_letter_to_num(substr($move, 1, 1));
+ my $to_col = col_letter_to_num(substr($move, 2, 1));
+ my $to_row = row_letter_to_num(substr($move, 3, 1));
+ my $promo = substr($move, 4, 1);
+ return ($from_col, $from_row, $to_col, $to_row, $promo);
}
projects / remoteglot / blobdiff