Hi Roy.

Yes I do call hole::new in the code I omitted. Below is that code ...

sub new {
    my ($pkg, $holes, $level) = @_;

    unless ( $holes ) {
        #
        # create the holes
        #
        my $holeLevel = 0;
        for ( my $i=0; $i<15; $i++ ) {
            if ( $i > 0 ) { $holeLevel = 1; }
            if ( $i > 2 ) { $holeLevel = 2; }
            if ( $i > 5 ) { $holeLevel = 3; }
            if ( $i > 9 ) { $holeLevel = 4; }
            #
            # the 5th hole is usaully has no peg initially.
            #
            $holes->[$i] = new hole( ( $i == 4 ) ? 'white' : 'black' ,
+ $i, $holeLevel );
        }

        #
        # link the holes
        #
        $holes->[0]->setLinks( [ $holes->[1], $holes->[2] ] );
        $holes->[1]->setLinks( [ $holes->[0], $holes->[2], $holes->[3]
+, $holes->[4] ] );
        $holes->[2]->setLinks( [ $holes->[0], $holes->[1], $holes->[4]
+, $holes->[5] ] );
        $holes->[3]->setLinks( [ $holes->[1], $holes->[4], $holes->[6]
+, $holes->[7] ] );
        $holes->[4]->setLinks( [ $holes->[1], $holes->[2], $holes->[3]
+, $holes->[5], $holes->[7], $holes->[8] ] );
        $holes->[5]->setLinks( [ $holes->[2], $holes->[4], $holes->[8]
+, $holes->[9] ] );
        $holes->[6]->setLinks( [ $holes->[3], $holes->[7], $holes->[10
+], $holes->[11] ] );
        $holes->[7]->setLinks( [ $holes->[3], $holes->[4], $holes->[6]
+, $holes->[8], $holes->[11], $holes->[12] ] );
        $holes->[8]->setLinks( [ $holes->[4], $holes->[5], $holes->[7]
+, $holes->[9], $holes->[12], $holes->[13] ] );
        $holes->[9]->setLinks( [ $holes->[5], $holes->[8], $holes->[13
+], $holes->[14] ] );
        $holes->[10]->setLinks( [ $holes->[6], $holes->[11] ] );
        $holes->[11]->setLinks( [ $holes->[6], $holes->[7], $holes->[1
+0], $holes->[12] ] );
        $holes->[12]->setLinks( [ $holes->[7], $holes->[8], $holes->[1
+1], $holes->[13] ] );
        $holes->[13]->setLinks( [ $holes->[8], $holes->[9], $holes->[1
+2], $holes->[14] ] );
        $holes->[14]->setLinks( [ $holes->[9], $holes->[13] ] );
    }
    my $obj = bless {
        holes    => $holes, # ref to array of holes
        level    => defined( $level ) ? $level : 0
    }, $pkg;
    return $obj;
}
[download]

What do you think of the line ...

$holes->[$i] = new hole( ( $i == 4 ) ? 'white' : 'black' , $i, $holeLe
+vel );
[download]

... could that be the problem?

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