my $pretty_move = join('', prettyprint_pv($pos_calculating->{'board'}, $move));
my @pretty_pv = prettyprint_pv($pos_calculating->{'board'}, $move, @{$m->{'pv'}});
if (scalar @pretty_pv > 5) {
my $pretty_move = join('', prettyprint_pv($pos_calculating->{'board'}, $move));
my @pretty_pv = prettyprint_pv($pos_calculating->{'board'}, $move, @{$m->{'pv'}});
if (scalar @pretty_pv > 5) {