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(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 "ucinewgame\n";
+uciprint("setoption name UCI_AnalyseMode value true");
+uciprint("setoption name NalimovPath value c:\\nalimov");
+uciprint("setoption name NalimovUsage value Normally");
+# uciprint("setoption name Contempt value 1000");
+# uciprint("setoption name Outlook value Ultra Optimistic");
+uciprint("ucinewgame");
print "Chess engine ready.\n";
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;
$uciinfo{'pv'} = [ @x[1..$#x] ];
last;
}
- if ($x[0] eq 'UCI_AnalyseMode' || $x[0] eq 'setting') {
+ if ($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');
}
}
$fen .= " ";
}
# white long castling
- if ($pv eq 'e1b1' && $piece eq 'K') {
+ if ($pv eq 'e1c1' && $piece eq 'K') {
my @nb = @$board;
# king
# rook
substr($nb[7], 0, 1, '-');
- substr($nb[7], 2, 1, 'R');
+ substr($nb[7], 3, 1, 'R');
return ('0-0-0', prettyprint_pv(\@nb, @pvs));
}
}
# black long castling
- if ($pv eq 'e8b8' && $piece eq 'k') {
+ if ($pv eq 'e8c8' && $piece eq 'k') {
my @nb = @$board;
# king
# rook
substr($nb[0], 0, 1, '-');
- substr($nb[0], 2, 1, 'R');
+ substr($nb[0], 3, 1, 'R');
return ('0-0-0', prettyprint_pv(\@nb, @pvs));
}
if (defined($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;
+ 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;
}
- 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'}, $uciinfo{'depth'};
+
+ if (exists($ficsinfo{'board'})) {
+ 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'};
}
# unknown piece
return 0;
}
+
+sub uciprint {
+ my $msg = shift;
+ print UCIWRITE "$msg\n";
+ print UCILOG "=> $msg\n";
+}
projects / remoteglot / blobdiff