my $server = "freechess.org";
my $target = "Sesse";
# my $engine = "/usr/games/toga2";
-my $engine = "wine rybka22-mpw32.exe";
+my $engine = "wine Rybkav2.3.2a.mp.w32.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: $!";
+print UCILOG "Log starting.\n";
+select(UCILOG);
+$| = 1;
+select(STDOUT);
# open the chess engine
my $pid = IPC::Open2::open2(*UCIREAD, *UCIWRITE, $engine);
my %uciinfo = ();
my %ficsinfo = ();
-print UCIWRITE "uci\n";
+
+uciprint("uci");
# gobble the options
while (<UCIREAD>) {
/uciok/ && last;
}
-print UCIWRITE "setoption name UCI_AnalyseMode value true\n";
-print UCIWRITE "setoption name NalimovPath value c:\\nalimov\n";
-print UCIWRITE "setoption name NalimovUsage value Normally\n";
-# print UCIWRITE "setoption name Contempt value 1000\n";
-# print UCIWRITE "setoption name Outlook value Ultra Optimistic\n";
-print UCIWRITE "ucinewgame\n";
+uciprint("setoption name UCI_AnalyseMode value true");
+uciprint("setoption name NalimovPath value c:\\nalimov");
+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");
print "Chess engine ready.\n";
# 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/');
print "FICS ready.\n";
while (1) {
my $rin = '';
+ my $rout;
vec($rin, fileno(UCIREAD), 1) = 1;
vec($rin, fileno($t), 1) = 1;
- my ($nfound, $timeleft) = select($rin, undef, undef, 5.0);
+ my ($nfound, $timeleft) = select($rout=$rin, undef, undef, 5.0);
my $sleep = 1.0;
while (1) {
$line =~ tr/\r//d;
if ($line =~ /^<12> /) {
my $fen = style12_to_fen($line);
- print UCIWRITE "stop\n";
- print UCIWRITE "position fen $fen\n";
- print UCIWRITE "go infinite\n";
- #print "stop\n";
- #print "position fen $fen\n";
- #print "go infinite\n";
+ uciprint("stop");
+ uciprint("position fen $fen");
+ uciprint("go infinite");
}
#print "FICS: [$line]\n";
$sleep = 0;
}
# any fun on the UCI channel?
- if (vec($rin, fileno(UCIREAD), 1)) {
+ if ($nfound > 0 && vec($rout, fileno(UCIREAD), 1) == 1) {
my $line = <UCIREAD>;
chomp $line;
$line =~ tr/\r//d;
- #print "UCI: $line\n";
+ print UCILOG "<= $line\n";
if ($line =~ /^info/) {
my (@infos) = split / /, $line;
shift @infos;
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;
}
# 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($board[4], $col-1, 1) eq 'p');
+ $ep = $nep if ($col < 7 && substr($board[4], $col+1, 1) eq 'p');
} else {
- $ep .= "6";
+ $ep = $nep if ($col > 0 && substr($board[3], $col-1, 1) eq 'P');
+ $ep = $nep if ($col < 7 && substr($board[3], $col+1, 1) eq 'P');
}
}
$fen .= " ";
if (scalar @pvs == 0 || !defined($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, $piece);
sub output_screen {
#return;
- print "\ecAnalysis:\n";
- if (defined($uciinfo{'score_mate'})) {
- printf " Mate in %d\n", $uciinfo{'score_mate'};
- } else {
- my $score = $uciinfo{'score_cp'} * 0.01;
- if ($ficsinfo{'toplay'} eq 'B') {
- $score = -$score;
+ #
+ # 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'})) {
+ $dummy = prettyprint_pv($ficsinfo{'board'}, @{$uciinfo{'pv'}});
}
- printf " Score: %+5.2f\n", $score;
- }
- print " PV: ", join(', ', prettyprint_pv($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'};
+
+ my $mpv = 1;
+ while (exists($uciinfo{'pv' . $mpv})) {
+ $dummy = prettyprint_pv($ficsinfo{'board'}, @{$uciinfo{'pv' . $mpv}});
+ ++$mpv;
+ }
+ };
+ if ($@) {
+ return;
}
- if (exists($uciinfo{'seldepth'})) {
- printf " (%u selective)", $uciinfo{'seldepth'};
+
+ print "\e[H\e[2JAnalysis:\n\n";
+
+ return unless (exists($ficsinfo{'board'}));
+
+ if (exists($uciinfo{'pv1'})) {
+ # multi-PV
+ my $mpv = 1;
+ while (exists($uciinfo{'pv' . $mpv})) {
+ printf " PV%2u", $mpv;
+
+ if (defined($uciinfo{'score_mate' . $mpv})) {
+ printf " (M%3d)", $uciinfo{'score_mate' . $mpv};
+ } else {
+ if (exists($uciinfo{'score_cp' . $mpv})) {
+ my $score = $uciinfo{'score_cp' . $mpv} * 0.01;
+ if ($ficsinfo{'toplay'} eq 'B') {
+ $score = -$score;
+ }
+ printf " (%+5.2f)", $score;
+ }
+ }
+
+ if (exists($uciinfo{'nodes' . $mpv}) && exists($uciinfo{'nps' . $mpv}) && exists($uciinfo{'depth' . $mpv})) {
+ printf " (%5u kn, %3u kn/s, %2u ply)",
+ $uciinfo{'nodes' . $mpv} / 1000, $uciinfo{'nps' . $mpv} / 1000, $uciinfo{'depth' . $mpv};
+ }
+
+ print ":\n";
+ print " ", join(', ', prettyprint_pv($ficsinfo{'board'}, @{$uciinfo{'pv' . $mpv}})), "\n";
+ print "\n";
+ ++$mpv;
+ }
+ } else {
+ # single-PV
+ if (defined($uciinfo{'score_mate'})) {
+ my $mate = $uciinfo{'score_mate'};
+ if ($ficsinfo{'toplay'} eq 'B') {
+ $mate = -$mate;
+ }
+ if ($mate > 0) {
+ printf " White mates in %u\n", $mate;
+ } else {
+ printf " Black mates in %u\n", -$mate;
+ }
+ } else {
+ if (exists($uciinfo{'score_cp'})) {
+ my $score = $uciinfo{'score_cp'} * 0.01;
+ if ($ficsinfo{'toplay'} eq 'B') {
+ $score = -$score;
+ }
+ printf " Score: %+5.2f\n", $score;
+ }
+ }
+
+ print " PV: ", join(', ', prettyprint_pv($ficsinfo{'board'}, @{$uciinfo{'pv'}}));
+ print "\n";
+
+ if (exists($uciinfo{'nodes'}) && exists($uciinfo{'nps'}) && exists($uciinfo{'depth'})) {
+ printf " %u nodes, %7u nodes/sec, depth %u ply",
+ $uciinfo{'nodes'}, $uciinfo{'nps'}, $uciinfo{'depth'};
+ }
+ if (exists($uciinfo{'tbhits'})) {
+ printf ", %u Nalimov hits", $uciinfo{'tbhits'};
+ }
+ if (exists($uciinfo{'seldepth'})) {
+ printf " (%u selective)", $uciinfo{'seldepth'};
+ }
+ print "\n\n";
}
- 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
# unknown piece
return 0;
}
+
+sub uciprint {
+ my $msg = shift;
+ print UCIWRITE "$msg\n";
+ print UCILOG "=> $msg\n";
+}
projects / remoteglot / blobdiff