# analysis, or for live analysis of relayed games. (Do not use for
# cheating! Cheating is bad for your karma, and your abuser flag.)
#
-# Copyright 2007 Steinar H. Gunderson <sgunderson@bigfoot.com>
+# Copyright 2007 Steinar H. Gunderson <steinar+remoteglot@gunderson.no>
# Licensed under the GNU General Public License, version 2.
#
$| = 1;
select(STDOUT);
+umask 0022;
# open the chess engine
my $engine = open_engine($remoteglotconf::engine_cmdline, 'E1', sub { handle_uci(@_, 1); });
}
my $pgn = Chess::PGN::Parse->new(undef, $body);
- if (!defined($pgn) || !$pgn->read_game() || $body !~ /^\[/) {
- warn "Error in parsing PGN from $url\n";
+ if (!defined($pgn)) {
+ warn "Error in parsing PGN from $url [body='$body']\n";
+ } elsif (!$pgn->read_game()) {
+ warn "Error in reading PGN game from $url [body='$body']\n";
+ } elsif ($body !~ /^\[/) {
+ warn "Malformed PGN from $url [body='$body']\n";
} else {
eval {
# Skip to the right game.
push @uci_moves, $uci_move;
# Re-prettyprint the move.
- my ($from_col, $from_row, $to_col, $to_row, $promo) = parse_uci_move($uci_move);
+ my ($from_row, $from_col, $to_row, $to_col, $promo) = parse_uci_move($uci_move);
my ($pretty, undef) = $pos->{'board'}->prettyprint_move($from_row, $from_col, $to_row, $to_col, $promo);
push @repretty_moves, $pretty;
$pos = $npos;
}
my $pv = shift @pvs;
- my ($from_col, $from_row, $to_col, $to_row, $promo) = parse_uci_move($pv);
+ 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) );
}
}
}
+sub complete_using_tbprobe {
+ my ($pos, $info, $mpv) = @_;
+
+ # We need Fathom installed to do standalone TB probes.
+ return if (!defined($remoteglotconf::fathom_cmdline));
+
+ # If we already have a mate, don't bother; in some cases, it would even be
+ # better than a tablebase score.
+ return if defined($info->{'score_mate' . $mpv});
+
+ # If we have a draw or near-draw score, there's also not much interesting
+ # we could add from a tablebase. We only really want mates.
+ return if ($info->{'score_cp' . $mpv} >= -12250 && $info->{'score_cp' . $mpv} <= 12250);
+
+ # Run through the PV until we are at a 6-man position.
+ # TODO: We could in theory only have 5-man data.
+ my @pv = @{$info->{'pv' . $mpv}};
+ my $key = join('', @pv);
+ my @moves = ();
+ if (exists($pos->{'tbprobe_cache'}{$key})) {
+ @moves = $pos->{'tbprobe_cache'}{$key};
+ } else {
+ while ($pos->num_pieces() > 6 && $#pv > -1) {
+ my $move = shift @pv;
+ push @moves, $move;
+ $pos = $pos->make_move(parse_uci_move($move));
+ }
+
+ return if ($pos->num_pieces() > 6);
+
+ my $fen = $pos->fen();
+ my $pgn_text = `fathom --path=/srv/syzygy "$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.
+ for my $move (@{$pgn->moves}) {
+ my $uci_move;
+ ($pos, $uci_move) = $pos->make_pretty_move($move);
+ push @moves, $uci_move;
+ }
+ }
+
+ $info->{'pv' . $mpv} = \@moves;
+
+ my $matelen = int((1 + scalar @moves) / 2);
+ if ((scalar @moves) % 2 == 0) {
+ $info->{'score_mate' . $mpv} = -$matelen;
+ } else {
+ $info->{'score_mate' . $mpv} = $matelen;
+ }
+}
+
sub output {
#return;
for my $key (qw(pv score_cp score_mate nodes nps depth seldepth tbhits)) {
if (exists($info->{$key . '1'})) {
$info->{$key} = $info->{$key . '1'};
+ } else {
+ delete $info->{$key};
}
}
}
return;
}
+ # Now do our own Syzygy tablebase probes to convert scores like +123.45 to mate.
+ if (exists($info->{'pv'})) {
+ complete_using_tbprobe($pos_calculating, $info, '');
+ }
+
+ my $mpv = 1;
+ while (exists($info->{'pv' . $mpv})) {
+ complete_using_tbprobe($pos_calculating, $info, $mpv);
+ ++$mpv;
+ }
+
output_screen();
output_json(0);
$latest_update = [Time::HiRes::gettimeofday];
my $info = $engine2->{'info'};
last if (!exists($info->{'pv' . $mpv}));
eval {
+ complete_using_tbprobe($pos_calculating_second_engine, $info, $mpv);
my $pv = $info->{'pv' . $mpv};
-
my $pretty_move = join('', prettyprint_pv($pos_calculating_second_engine, $pv->[0]));
my @pretty_pv = prettyprint_pv($pos_calculating_second_engine, @$pv);
if (scalar @pretty_pv > 5) {
last if (!exists($info->{'pv' . $mpv}));
eval {
+ complete_using_tbprobe($pos_calculating, $info, $mpv);
my $pv = $info->{'pv' . $mpv};
my $pretty_move = join('', prettyprint_pv($pos_calculating, $pv->[0]));
my @pretty_pv = prettyprint_pv($pos_calculating, @$pv);
($new_depth == $old_depth && $new_nodes >= $old_nodes)) {
atomic_set_contents($filename, $encoded);
if (defined($json->{'plot_score'})) {
- local $dbh->{AutoCommit} = 0;
- $dbh->do('DELETE FROM scores WHERE id=?', undef, $id);
- $dbh->do('INSERT INTO scores (id, plot_score, short_score, engine, depth, nodes) VALUES (?,?,?,?,?,?)', undef,
+ $dbh->do('INSERT INTO scores (id, plot_score, short_score, engine, depth, nodes) VALUES (?,?,?,?,?,?) ' .
+ ' ON CONFLICT (id) DO UPDATE SET ' .
+ ' plot_score=EXCLUDED.plot_score, ' .
+ ' short_score=EXCLUDED.short_score, ' .
+ ' engine=EXCLUDED.engine, ' .
+ ' depth=EXCLUDED.depth, ' .
+ ' nodes=EXCLUDED.nodes',
+ undef,
$id, $json->{'plot_score'}, $json->{'short_score'},
$json->{'engine'}{'name'}, $new_depth, $new_nodes);
- $dbh->commit;
}
}
}
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, $promo);
+ return ($from_row, $from_col, $to_row, $to_col, $promo);
}
projects / remoteglot / blobdiff