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'
+);
+
+# Program starts here
$SIG{ALRM} = sub { output_screen(); };
$| = 1;
-my $server = "freechess.org";
-my $target = "Sesse";
-# my $engine = "/usr/games/toga2";
-my $engine = "wine Rybkav2.3.2a.mp.w32.exe";
-
open(FICSLOG, ">ficslog.txt")
or die "ficslog.txt: $!";
print FICSLOG "Log starting.\n";
select(STDOUT);
# open the chess engine
-my $pid = IPC::Open2::open2(*UCIREAD, *UCIWRITE, $engine);
+my $engine = open_engine($engine_cmdline);
my %uciinfo = ();
my %uciid = ();
-my %ficsinfo = ();
-
-uciprint("uci");
-
-# gobble the options
-while (<UCIREAD>) {
- /uciok/ && last;
- handle_uci($_);
-}
-
-uciprint("setoption name UCI_AnalyseMode value true");
-uciprint("setoption name NalimovPath value c:\\nalimov");
-uciprint("setoption name NalimovUsage value Rarely");
-uciprint("setoption name Hash value 1024");
-# uciprint("setoption name MultiPV value 3");
-# uciprint("setoption name Contempt value 1000");
-# uciprint("setoption name Outlook value Ultra Optimistic");
-uciprint("ucinewgame");
+my ($last_move, $last_tell);
+my $last_text = '';
+my $last_told_text = '';
+my ($pos_waiting, $pos_calculating);
+
+uciprint($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");
+uciprint($engine, "ucinewgame");
print "Chess engine ready.\n";
my $t = Net::Telnet->new(Timeout => 10, Prompt => '/fics% /');
$t->input_log(\*FICSLOG);
$t->open($server);
-$t->print("guest");
+$t->print("SesseBOT");
$t->waitfor('/Press return to enter the server/');
$t->cmd("");
while (1) {
my $rin = '';
my $rout;
- vec($rin, fileno(UCIREAD), 1) = 1;
+ vec($rin, fileno($engine->{'read'}), 1) = 1;
vec($rin, fileno($t), 1) = 1;
my ($nfound, $timeleft) = select($rout=$rin, undef, undef, 5.0);
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 $pos = style12_to_pos($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);
+
+ 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.");
+ }
}
#print "FICS: [$line]\n";
$sleep = 0;
}
# any fun on the UCI channel?
- if ($nfound > 0 && vec($rout, fileno(UCIREAD), 1) == 1) {
- my $line = <UCIREAD>;
+ if ($nfound > 0 && vec($rout, fileno($engine->{'read'}), 1) == 1) {
+ my $line = read_line($engine->{'read'});
handle_uci($line);
$sleep = 0;
chomp $line;
$line =~ tr/\r//d;
- print UCILOG "<= $line\n";
+ $line =~ s/ / /g; # Sometimes needed for Zappa Mexico
+ print UCILOG localtime() . " <= $line\n";
if ($line =~ /^info/) {
my (@infos) = split / /, $line;
shift @infos;
parse_ids(@ids);
}
+ if ($line =~ /^bestmove/ && $uci_assume_full_compliance) {
+ if (defined($pos_waiting)) {
+ uciprint($engine, "position fen " . $pos_waiting->{'fen'});
+ uciprint($engine, "go infinite");
+
+ $pos_calculating = $pos_waiting;
+ $pos_waiting = undef;
+ }
+ }
}
sub parse_infos {
}
}
-sub style12_to_fen {
- my $str = shift;
+sub style12_to_pos {
+ 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];
+ $pos{'ep_file_num'} = $x[10];
+ $pos{'white_castle_k'} = $x[11];
+ $pos{'white_castle_q'} = $x[12];
+ $pos{'black_castle_k'} = $x[13];
+ $pos{'black_castle_q'} = $x[14];
+ $pos{'time_to_100move_rule'} = $x[15];
+ $pos{'move_num'} = $x[26];
+ $pos{'last_move'} = $x[29];
+ $pos{'fen'} = make_fen(\%pos);
+
+ return \%pos;
+}
+
+sub make_fen {
+ my $pos = shift;
+
# the board itself
- my (@board) = @x[1..8];
+ my (@board) = @{$pos->{'board'}};
for my $rank (0..7) {
$board[$rank] =~ s/(-+)/length($1)/ge;
}
# white/black to move
$fen .= " ";
- $fen .= lc($x[9]);
+ $fen .= lc($pos->{'toplay'});
# 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);
+ $castling .= "K" if ($pos->{'white_castle_k'} == 1);
+ $castling .= "Q" if ($pos->{'white_castle_q'} == 1);
+ $castling .= "k" if ($pos->{'black_castle_k'} == 1);
+ $castling .= "q" if ($pos->{'black_castle_q'} == 1);
$castling = "-" if ($castling eq "");
+ # $castling = "-"; # chess960
$fen .= " ";
$fen .= $castling;
# en passant
my $ep = "-";
- if ($x[10] != -1) {
- my $col = $x[10];
+ if ($pos->{'ep_file_num'} != -1) {
+ my $col = $pos->{'ep_file_num'};
my $nep = (qw(a b c d e f g h))[$col];
- if ($x[9] eq 'B') {
+ if ($pos->{'toplay'} eq 'B') {
$nep .= "3";
} else {
$nep .= "6";
}
-
+
#
# Showing the en passant square when actually no capture can be made
# seems to confuse at least Rybka. Thus, check if there's actually
# not, just lie -- it doesn't matter anyway. I'm unsure what's the
# "right" thing as per the standard, though.
#
- if ($x[9] eq 'B') {
- $ep = $nep if ($col > 0 && substr($board[4], $col-1, 1) eq 'p');
- $ep = $nep if ($col < 7 && substr($board[4], $col+1, 1) eq 'p');
+ if ($pos->{'toplay'} 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($board[3], $col-1, 1) eq 'P');
- $ep = $nep if ($col < 7 && substr($board[3], $col+1, 1) eq 'P');
+ $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 .= " ";
# half-move clock
$fen .= " ";
- $fen .= $x[15];
+ $fen .= $pos->{'time_to_100move_rule'};
# full-move clock
$fen .= " ";
- $fen .= $x[26];
+ $fen .= $pos->{'move_num'};
return $fen;
}
-sub prettyprint_pv {
- my ($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 $pretty;
+sub make_move {
+ my ($board, $from_row, $from_col, $to_row, $to_col, $promo) = @_;
+ my $move = move_to_uci_notation($from_row, $from_col, $to_row, $to_col, $promo);
my $piece = substr($board->[$from_row], $from_col, 1);
+ my @nb = @$board;
if ($piece eq '-') {
- die "Invalid move";
+ die "Invalid move $move";
}
# white short castling
- if ($pv eq 'e1g1' && $piece eq 'K') {
+ if ($move eq 'e1g1' && $piece eq 'K') {
# king
substr($nb[7], 4, 1, '-');
substr($nb[7], 6, 1, $piece);
substr($nb[7], 7, 1, '-');
substr($nb[7], 5, 1, 'R');
- return ('0-0', prettyprint_pv(\@nb, @pvs));
+ return \@nb;
}
# white long castling
- if ($pv eq 'e1c1' && $piece eq 'K') {
+ if ($move eq 'e1c1' && $piece eq 'K') {
# king
substr($nb[7], 4, 1, '-');
substr($nb[7], 2, 1, $piece);
substr($nb[7], 0, 1, '-');
substr($nb[7], 3, 1, 'R');
- return ('0-0-0', prettyprint_pv(\@nb, @pvs));
+ return \@nb;
}
# black short castling
- if ($pv eq 'e8g8' && $piece eq 'k') {
+ if ($move eq 'e8g8' && $piece eq 'k') {
# king
substr($nb[0], 4, 1, '-');
substr($nb[0], 6, 1, $piece);
substr($nb[0], 7, 1, '-');
substr($nb[0], 5, 1, 'r');
- return ('0-0', prettyprint_pv(\@nb, @pvs));
+ return \@nb;
}
# black long castling
- if ($pv eq 'e8c8' && $piece eq 'k') {
+ if ($move eq 'e8c8' && $piece eq 'k') {
# king
substr($nb[0], 4, 1, '-');
substr($nb[0], 2, 1, $piece);
substr($nb[0], 0, 1, '-');
substr($nb[0], 3, 1, 'r');
- return ('0-0-0', prettyprint_pv(\@nb, @pvs));
+ return \@nb;
}
# check if the from-piece is a pawn
if (lc($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], $to_col, 1, '-');
}
}
+ } else {
+ if ($promo ne '') {
+ if ($piece eq 'p') {
+ $piece = $promo;
+ } else {
+ $piece = uc($promo);
+ }
+ }
+ }
+ }
+
+ # update the board
+ substr($nb[$from_row], $from_col, 1, '-');
+ substr($nb[$to_row], $to_col, 1, $piece);
+
+ return \@nb;
+}
+
+sub prettyprint_pv {
+ my ($board, @pvs) = @_;
+
+ if (scalar @pvs == 0 || !defined($pvs[0])) {
+ return ();
+ }
+
+ my $pv = shift @pvs;
+ my $from_col = col_letter_to_num(substr($pv, 0, 1));
+ my $from_row = row_letter_to_num(substr($pv, 1, 1));
+ my $to_col = col_letter_to_num(substr($pv, 2, 1));
+ my $to_row = row_letter_to_num(substr($pv, 3, 1));
+ my $promo = substr($pv, 4, 1);
+
+ my $nb = make_move($board, $from_row, $from_col, $to_row, $to_col, $promo);
+ my $piece = substr($board->[$from_row], $from_col, 1);
+
+ if ($piece eq '-') {
+ die "Invalid move $pv";
+ }
+
+ # white short castling
+ if ($pv eq 'e1g1' && $piece eq 'K') {
+ return ('0-0', prettyprint_pv($nb, @pvs));
+ }
+
+ # white long castling
+ if ($pv eq 'e1c1' && $piece eq 'K') {
+ return ('0-0-0', prettyprint_pv($nb, @pvs));
+ }
+
+ # black short castling
+ if ($pv eq 'e8g8' && $piece eq 'k') {
+ return ('0-0', prettyprint_pv($nb, @pvs));
+ }
+
+ # black long castling
+ if ($pv eq 'e8c8' && $piece eq 'k') {
+ return ('0-0-0', prettyprint_pv($nb, @pvs));
+ }
+
+ my $pretty;
+
+ # check if the from-piece is a pawn
+ if (lc($piece) eq 'p') {
+ # attack?
+ if ($from_col != $to_col) {
+ $pretty = substr($pv, 0, 1) . 'x' . substr($pv, 2, 2);
} else {
$pretty = substr($pv, 2, 2);
$pretty .= substr($pv, 2, 2);
}
- # update the board
- substr($nb[$from_row], $from_col, 1, '-');
- substr($nb[$to_row], $to_col, 1, $piece);
-
- if (in_mate(\@nb)) {
+ if (in_mate($nb)) {
$pretty .= '#';
- } elsif (in_check(\@nb) ne 'none') {
+ } elsif (in_check($nb) ne 'none') {
$pretty .= '+';
}
-
- return ($pretty, prettyprint_pv(\@nb, @pvs));
+ 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
eval {
my $dummy;
if (exists($uciinfo{'pv'})) {
- $dummy = prettyprint_pv($ficsinfo{'board'}, @{$uciinfo{'pv'}});
+ $dummy = prettyprint_pv($pos_calculating->{'board'}, @{$uciinfo{'pv'}});
}
my $mpv = 1;
while (exists($uciinfo{'pv' . $mpv})) {
- $dummy = prettyprint_pv($ficsinfo{'board'}, @{$uciinfo{'pv' . $mpv}});
+ $dummy = prettyprint_pv($pos_calculating->{'board'}, @{$uciinfo{'pv' . $mpv}});
++$mpv;
}
};
if ($@) {
+ %uciinfo = ();
return;
}
- print "\e[H\e[2J"; # clear the screen
+ my $text = 'Analysis';
+ if ($pos_calculating->{'last_move'} ne 'none') {
+ if ($pos_calculating->{'toplay'} eq 'W') {
+ $text .= sprintf ' after %u. ... %s', ($pos_calculating->{'move_num'}-1), $pos_calculating->{'last_move'};
+ } else {
+ $text .= sprintf ' after %u. %s', $pos_calculating->{'move_num'}, $pos_calculating->{'last_move'};
+ }
+ if (exists($uciid{'name'})) {
+ $text .= ',';
+ }
+ }
+
if (exists($uciid{'name'})) {
- print "Analysis by $uciid{'name'}:\n\n";
+ $text .= " by $uciid{'name'}:\n\n";
} else {
- print "Analysis:\n\n";
+ $text .= ":\n\n";
}
- return unless (exists($ficsinfo{'board'}));
+ 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})) {
- 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;
+ $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}) && $uciinfo{'tbhits' . $mpv} > 0) {
+ if ($uciinfo{'tbhits' . $mpv} == 1) {
+ $tbhits = ", 1 tbhit";
+ } else {
+ $tbhits = sprintf ", %u tbhits", $uciinfo{'tbhits' . $mpv};
}
}
-
+
if (exists($uciinfo{'nodes' . $mpv}) && exists($uciinfo{'nps' . $mpv}) && exists($uciinfo{'depth' . $mpv})) {
- printf " (%5u kn, %3u kn/s, %2u ply)",
+ $text .= sprintf " (%5u kn, %3u kn/s, %2u ply$tbhits)",
$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";
+ $text .= ":\n";
+ $text .= " " . join(', ', prettyprint_pv($pos_calculating->{'board'}, @{$uciinfo{'pv' . $mpv}})) . "\n";
+ $text .= "\n";
++$mpv;
}
} else {
- #
- # 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'})) {
- 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'};
- }
- }
- }
-
# 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;
+ 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'}, $uciinfo{'depth'};
+ }
+ if (exists($uciinfo{'tbhits'}) && $uciinfo{'tbhits'} > 0) {
+ if ($uciinfo{'tbhits'} == 1) {
+ $text .= ", one Nalimov hit";
} else {
- printf " Black mates in %u\n", -$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;
+ $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'}, @{$uciinfo{'pv'}}));
- print "\n";
+ #$text .= book_info($pos_calculating->{'fen'}, $pos_calculating->{'board'}, $pos_calculating->{'toplay'});
- if (exists($uciinfo{'nodes'}) && exists($uciinfo{'nps'}) && exists($uciinfo{'depth'})) {
- printf " %u nodes, %7u nodes/sec, depth %u ply",
- $uciinfo{'nodes'}, $uciinfo{'nps'}, $uciinfo{'depth'};
+ if ($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};
+ }
+
+ $tell_text .= ": ";
+ $tell_text .= join(', ', prettyprint_pv($pos_calculating->{'board'}, @{$uciinfo{'pv' . $mpv}}));
+ $tell_text .= "\n";
+ ++$mpv;
}
- if (exists($uciinfo{'tbhits'})) {
- printf ", %u Nalimov hits", $uciinfo{'tbhits'};
+ } 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)", $uciinfo{'depth'};
}
- if (exists($uciinfo{'seldepth'})) {
- printf " (%u selective)", $uciinfo{'seldepth'};
+ $tell_text .= "\n";
+ }
+
+ # see if a new tell is called for -- it is if the delay has expired _and_
+ # this is not simply a repetition of the last one
+ if ($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 = $now;
+
+ last;
}
- print "\n\n";
}
}
return (can_reach($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 '-');
}
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 '-');
}
}
sub uciprint {
- my $msg = shift;
- print UCIWRITE "$msg\n";
- print UCILOG "=> $msg\n";
+ my ($engine, $msg) = @_;
+ print { $engine->{'write'} } "$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", $score;
+ }
+ }
+
+ return undef;
+}
+
+my %book_cache = ();
+sub book_info {
+ my ($fen, $board, $toplay) = @_;
+
+ if (exists($book_cache{$fen})) {
+ return $book_cache{$fen};
+ }
+
+ my $ret = `./booklook $fen`;
+ return "" if ($ret =~ /Not found/ || $ret eq '');
+
+ my @moves = ();
+
+ for my $m (split /\n/, $ret) {
+ my ($move, $annotation, $win, $draw, $lose, $rating, $rating_div) = split /,/, $m;
+
+ my $pmove;
+ if ($move eq '') {
+ $pmove = '(current)';
+ } else {
+ ($pmove) = prettyprint_pv($board, $move);
+ $pmove .= $annotation;
+ }
+
+ my $score;
+ if ($toplay eq 'W') {
+ $score = 1.0 * $win + 0.5 * $draw + 0.0 * $lose;
+ } else {
+ $score = 0.0 * $win + 0.5 * $draw + 1.0 * $lose;
+ }
+ my $n = $win + $draw + $lose;
+
+ my $percent;
+ if ($n == 0) {
+ $percent = " ";
+ } else {
+ $percent = sprintf "%4u%%", int(100.0 * $score / $n + 0.5);
+ }
+
+ push @moves, [ $pmove, $n, $percent, $rating ];
+ }
+
+ @moves[1..$#moves] = sort { $b->[2] cmp $a->[2] } @moves[1..$#moves];
+
+ my $text = "Book moves:\n\n Perf. N Rating\n\n";
+ for my $m (@moves) {
+ $text .= sprintf " %-10s %s %6u %4s\n", $m->[0], $m->[2], $m->[1], $m->[3]
+ }
+
+ return $text;
+}
+
+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;
+}
+
+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";
+ }
+
+ $line .= $tmp;
+ }
+
+ $line =~ tr/\r\n//d;
+ return $line;
+}
+
+sub col_letter_to_num {
+ return ord(shift) - ord('a');
+}
+
+sub row_letter_to_num {
+ return 7 - (ord(shift) - ord('1'));
+}
+
+sub move_to_uci_notation {
+ my ($from_row, $from_col, $to_row, $to_col, $promo) = @_;
+ $promo //= "";
+ return sprintf("%c%d%c%d%s", ord('a') + $from_col, 8 - $from_row, ord('a') + $to_col, 8 - $to_row, $promo);
}
projects / remoteglot / blobdiff