use strict;
use warnings;
+# Configuration
+my $server = "freechess.org";
+my $target = "22";
+# my $engine = "/usr/games/toga2";
+my $engine = "wine Rybkav2.3.2a.mp.w32.exe";
+my $telltarget = undef; # undef to be silent
+my @tell_intervals = (5, 20, 60, 120, 240, 480, 960); # after each move
+
+# Program starts here
$SIG{ALRM} = sub { output_screen(); };
$| = 1;
-my $server = "freechess.org";
-my $target = "Sesse";
-# my $engine = "/usr/games/toga2";
-my $engine = "wine rybka22-mpw32.exe";
+open(FICSLOG, ">ficslog.txt")
+ or die "ficslog.txt: $!";
+print FICSLOG "Log starting.\n";
+select(FICSLOG);
+$| = 1;
open(UCILOG, ">ucilog.txt")
or die "ucilog.txt: $!";
# open the chess engine
my $pid = IPC::Open2::open2(*UCIREAD, *UCIWRITE, $engine);
my %uciinfo = ();
-my %ficsinfo = ();
+my %uciid = ();
+my ($last_move, $last_tell);
+my $last_text = '';
+my $last_told_text = '';
+my ($pos_waiting, $pos_calculating);
uciprint("uci");
# gobble the options
while (<UCIREAD>) {
/uciok/ && last;
+ handle_uci($_);
}
uciprint("setoption name UCI_AnalyseMode value true");
+uciprint("setoption name Preserve Analysis value true");
uciprint("setoption name NalimovPath value c:\\nalimov");
-uciprint("setoption name NalimovUsage value Normally");
+uciprint("setoption name NalimovUsage value Rarely");
+uciprint("setoption name Hash value 1024");
+uciprint("setoption name MultiPV value 3");
# uciprint("setoption name Contempt value 1000");
# uciprint("setoption name Outlook value Ultra Optimistic");
uciprint("ucinewgame");
# now talk to FICS
my $t = Net::Telnet->new(Timeout => 10, Prompt => '/fics% /');
-#$t->input_log(\*STDOUT);
+$t->input_log(\*FICSLOG);
$t->open($server);
$t->print("guest");
$t->waitfor('/Press return to enter the server/');
chomp $line;
$line =~ tr/\r//d;
if ($line =~ /^<12> /) {
- my $fen = style12_to_fen($line);
- uciprint("stop");
- uciprint("position fen $fen");
- uciprint("go infinite");
+ 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("stop");
+ }
+ $pos_waiting = $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("position fen " . $pos->{'fen'});
+ uciprint("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.
+ #
+ $t->cmd("date");
}
#print "FICS: [$line]\n";
$sleep = 0;
# any fun on the UCI channel?
if ($nfound > 0 && vec($rout, fileno(UCIREAD), 1) == 1) {
my $line = <UCIREAD>;
- chomp $line;
- $line =~ tr/\r//d;
- print UCILOG "<= $line\n";
- if ($line =~ /^info/) {
- my (@infos) = split / /, $line;
- shift @infos;
-
- parse_infos(@infos);
- }
+ handle_uci($line);
$sleep = 0;
# don't update too often
sleep $sleep;
}
+sub handle_uci {
+ my ($line) = @_;
+
+ chomp $line;
+ $line =~ tr/\r//d;
+ print UCILOG localtime() . " <= $line\n";
+ if ($line =~ /^info/) {
+ my (@infos) = split / /, $line;
+ shift @infos;
+
+ parse_infos(@infos);
+ }
+ if ($line =~ /^id/) {
+ my (@ids) = split / /, $line;
+ shift @ids;
+
+ parse_ids(@ids);
+ }
+ if ($line =~ /^bestmove/) {
+ if (defined($pos_waiting)) {
+ uciprint("position fen " . $pos_waiting->{'fen'});
+ uciprint("go infinite");
+
+ $pos_calculating = $pos_waiting;
+ $pos_waiting = undef;
+ }
+ }
+}
+
sub parse_infos {
my (@x) = @_;
+ my $mpv = '';
while (scalar @x > 0) {
- if ($x[0] =~ /^(currmove|currmovenumber|time|nodes|nps|cpuload|hashfull|depth|seldepth|multipv|time|tbhits)$/) {
+ if ($x[0] =~ 'multipv') {
+ shift @x;
+ $mpv = shift @x;
+ next;
+ }
+ if ($x[0] =~ /^(currmove|currmovenumber|cpuload)$/) {
my $key = shift @x;
my $value = shift @x;
$uciinfo{$key} = $value;
next;
}
+ if ($x[0] =~ /^(depth|seldepth|hashfull|time|nodes|nps|tbhits)$/) {
+ my $key = shift @x;
+ my $value = shift @x;
+ $uciinfo{$key . $mpv} = $value;
+ next;
+ }
if ($x[0] eq 'score') {
shift @x;
- delete $uciinfo{'score_cp'};
- delete $uciinfo{'score_mate'};
+ delete $uciinfo{'score_cp' . $mpv};
+ delete $uciinfo{'score_mate' . $mpv};
while ($x[0] =~ /^(cp|mate|lowerbound|upperbound)$/) {
if ($x[0] eq 'cp') {
shift @x;
- $uciinfo{'score_cp'} = shift @x;
+ $uciinfo{'score_cp' . $mpv} = shift @x;
} elsif ($x[0] eq 'mate') {
shift @x;
- $uciinfo{'score_mate'} = shift @x;
+ $uciinfo{'score_mate' . $mpv} = shift @x;
} else {
shift @x;
}
next;
}
if ($x[0] eq 'pv') {
- $uciinfo{'pv'} = [ @x[1..$#x] ];
+ $uciinfo{'pv' . $mpv} = [ @x[1..$#x] ];
last;
}
- if ($x[0] eq 'UCI_AnalyseMode' || $x[0] eq 'setting' || $x[0] eq 'contempt') {
+ if ($x[0] eq 'string' || $x[0] eq 'UCI_AnalyseMode' || $x[0] eq 'setting' || $x[0] eq 'contempt') {
last;
}
}
}
+sub parse_ids {
+ my (@x) = @_;
+
+ while (scalar @x > 0) {
+ if ($x[0] =~ /^(name|author)$/) {
+ my $key = shift @x;
+ my $value = join(' ', @x);
+ $uciid{$key} = $value;
+ last;
+ }
+
+ # unknown
+ shift @x;
+ }
+}
+
sub style12_to_fen {
- my $str = shift;
+ my $str = shift;
+ my %pos = ();
my (@x) = split / /, $str;
- $ficsinfo{'board'} = [ @x[1..8] ];
- $ficsinfo{'toplay'} = $x[9];
+ $pos{'board'} = [ @x[1..8] ];
+ $pos{'toplay'} = $x[9];
# the board itself
my (@board) = @x[1..8];
# en passant
my $ep = "-";
if ($x[10] != -1) {
- $ep = (qw(a b c d e f g h))[$x[10]];
+ 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 .= "3";
+ $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 .= "6";
+ $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 .= " ";
$fen .= $x[26];
- return $fen;
+ $pos{'fen'} = $fen;
+
+ return \%pos;
}
sub prettyprint_pv {
if (scalar @pvs == 0 || !defined($pvs[0])) {
return ();
}
+
+ my @nb = @$board;
my $pv = shift @pvs;
my $from_col = ord(substr($pv, 0, 1)) - ord('a');
my $pretty;
my $piece = substr($board->[$from_row], $from_col, 1);
+ if ($piece eq '-') {
+ die "Invalid move";
+ }
+
# white short castling
if ($pv eq 'e1g1' && $piece eq 'K') {
- my @nb = @$board;
-
# king
substr($nb[7], 4, 1, '-');
substr($nb[7], 6, 1, $piece);
}
# white long castling
- if ($pv eq 'e1b1' && $piece eq 'K') {
- my @nb = @$board;
-
+ 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($nb[7], 2, 1, 'R');
+ substr($nb[7], 3, 1, 'R');
return ('0-0-0', prettyprint_pv(\@nb, @pvs));
}
# black short castling
if ($pv eq 'e8g8' && $piece eq 'k') {
- my @nb = @$board;
-
# king
substr($nb[0], 4, 1, '-');
substr($nb[0], 6, 1, $piece);
# rook
substr($nb[0], 7, 1, '-');
- substr($nb[0], 5, 1, 'R');
+ substr($nb[0], 5, 1, 'r');
return ('0-0', prettyprint_pv(\@nb, @pvs));
}
# black long castling
- if ($pv eq 'e8b8' && $piece eq 'k') {
- my @nb = @$board;
-
+ 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($nb[0], 2, 1, 'R');
+ substr($nb[0], 3, 1, 'r');
return ('0-0-0', prettyprint_pv(\@nb, @pvs));
}
# check if the from-piece is a pawn
if (lc($piece) eq 'p') {
# attack?
- if (substr($board->[$to_row], $to_col, 1) ne '-') {
+ if ($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);
}
# update the board
- my @nb = @$board;
substr($nb[$from_row], $from_col, 1, '-');
substr($nb[$to_row], $to_col, 1, $piece);
sub output_screen {
#return;
+
+ return if (!defined($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
+ # it can frequently miss stuff, but it's good enough for most users.
+ #
+ eval {
+ my $dummy;
+ if (exists($uciinfo{'pv'})) {
+ $dummy = prettyprint_pv($pos_calculating->{'board'}, @{$uciinfo{'pv'}});
+ }
+
+ my $mpv = 1;
+ while (exists($uciinfo{'pv' . $mpv})) {
+ $dummy = prettyprint_pv($pos_calculating->{'board'}, @{$uciinfo{'pv' . $mpv}});
+ ++$mpv;
+ }
+ };
+ if ($@) {
+ %uciinfo = ();
+ return;
+ }
+
+ my $text = '';
+
+ if (exists($uciid{'name'})) {
+ $text .= "Analysis by $uciid{'name'}:\n\n";
+ } else {
+ $text .= "Analysis:\n\n";
+ }
+
+ return unless (exists($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'})) {
+ # multi-PV
+ my $mpv = 1;
+ while (exists($uciinfo{'pv' . $mpv})) {
+ $text .= sprintf " PV%2u", $mpv;
+ my $score = short_score(\%uciinfo, $pos_calculating, $mpv);
+ $text .= " ($score)" if (defined($score));
+
+ my $tbhits = '';
+ if (exists($uciinfo{'tbhits' . $mpv})) {
+ $tbhits = sprintf ", %u tbhits", $uciinfo{'tbhits' . $mpv};
+ }
+
+ if (exists($uciinfo{'nodes' . $mpv}) && exists($uciinfo{'nps' . $mpv}) && exists($uciinfo{'depth' . $mpv})) {
+ $text .= sprintf " (%5u kn, %3u kn/s, %2u ply$tbhits)",
+ $uciinfo{'nodes' . $mpv} / 1000, $uciinfo{'nps' . $mpv} / 1000, $uciinfo{'depth' . $mpv};
+ }
- print "\ecAnalysis:\n";
- if (defined($uciinfo{'score_mate'})) {
- printf " Mate in %d\n", $uciinfo{'score_mate'};
+ $text .= ":\n";
+ $text .= " " . join(', ', prettyprint_pv($pos_calculating->{'board'}, @{$uciinfo{'pv' . $mpv}})) . "\n";
+ $text .= "\n";
+ ++$mpv;
+ }
} else {
- my $score = $uciinfo{'score_cp'} * 0.01;
- if ($ficsinfo{'toplay'} eq 'B') {
- $score = -$score;
+ # single-PV
+ my $score = long_score(\%uciinfo, $pos_calculating, '');
+ $text .= " $score\n" if defined($score);
+ $text .= " PV: " . join(', ', prettyprint_pv($pos_calculating->{'board'}, @{$uciinfo{'pv'}}));
+ $text .= "\n";
+
+ if (exists($uciinfo{'nodes'}) && exists($uciinfo{'nps'}) && exists($uciinfo{'depth'})) {
+ $text .= sprintf " %u nodes, %7u nodes/sec, depth %u ply",
+ $uciinfo{'nodes'}, $uciinfo{'nps'}, $uciinfo{'depth'};
}
- printf " Score: %+5.2f\n", $score;
+ if (exists($uciinfo{'tbhits'})) {
+ $text .= sprintf ", %u Nalimov hits", $uciinfo{'tbhits'};
+ }
+ if (exists($uciinfo{'seldepth'})) {
+ $text .= sprintf " (%u selective)", $uciinfo{'seldepth'};
+ }
+ $text .= "\n\n";
}
- print " PV: ", join(', ', prettyprint_pv($ficsinfo{'board'}, @{$uciinfo{'pv'}}));
- print "\n";
- printf " %u nodes, %7u nodes/sec, depth %u ply",
- $uciinfo{'nodes'}, $uciinfo{'nps'}, $uciinfo{'depth'};
- if (exists($uciinfo{'tbhits'})) {
- printf ", %u Nalimov hits", $uciinfo{'tbhits'};
+
+ if ($last_text ne $text) {
+ print "\e[H\e[2J"; # clear the screen
+ print $text;
+ $last_text = $text;
}
- if (exists($uciinfo{'seldepth'})) {
- printf " (%u selective)", $uciinfo{'seldepth'};
+
+ # Now construct the tell text, if any
+ return if (!defined($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};
+ }
+
+ $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'};
+ }
+ $tell_text .= "\n";
+ }
+
+ # see if a new tell is called for -- it is if the delay has expired _and_
+ # this is not simply a repetition of the last one
+ if ($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;
+ }
}
- print "\n\n";
}
sub find_kings {
for my $row (0..7) {
for my $col (0..7) {
my $piece = substr($board->[$row], $col, 1);
- next if ($piece eq '-' || lc($piece) eq 'k');
+ next if ($piece eq '-');
if (uc($piece) eq $piece) {
# white piece
sub uciprint {
my $msg = shift;
print UCIWRITE "$msg\n";
- print UCILOG "=> $msg\n";
+ print UCILOG localtime() . " => $msg\n";
+}
+
+sub short_score {
+ my ($uciinfo, $pos, $mpv) = @_;
+
+ if (defined($uciinfo{'score_mate' . $mpv})) {
+ return sprintf "M%3d", $uciinfo{'score_mate' . $mpv};
+ } else {
+ if (exists($uciinfo{'score_cp' . $mpv})) {
+ my $score = $uciinfo{'score_cp' . $mpv} * 0.01;
+ if ($pos->{'toplay'} eq 'B') {
+ $score = -$score;
+ }
+ return sprintf "%+5.2f", $score;
+ }
+ }
+
+ return undef;
+}
+
+sub long_score {
+ my ($uciinfo, $pos, $mpv) = @_;
+
+ if (defined($uciinfo{'score_mate' . $mpv})) {
+ my $mate = $uciinfo{'score_mate' . $mpv};
+ if ($pos->{'toplay'} eq 'B') {
+ $mate = -$mate;
+ }
+ if ($mate > 0) {
+ return sprintf "White mates in %u", $mate;
+ } else {
+ return sprintf "Black mates in %u", -$mate;
+ }
+ } else {
+ if (exists($uciinfo{'score_cp' . $mpv})) {
+ my $score = $uciinfo{'score_cp' . $mpv} * 0.01;
+ if ($pos->{'toplay'} eq 'B') {
+ $score = -$score;
+ }
+ return sprintf "Score: %+5.2f", $score;
+ }
+ }
+
+ return undef;
}
projects / remoteglot / blobdiff