Hmm, I believe I am checking to make sure $good_guesses is defined (unless I don't understand what defined() really does): 
} elsif ((defined($good_guesses))&&($guess =~ /[$good_guesses]/)) {
        print "\n***You already guessed that letter!*** (hit any key)\
+n"; <>;
    } else {
        if ($word =~ /[$guess]/) {
            if (defined($good_guesses)) {
                $good_guesses .= "$guess" unless ($guess =~ /[$good_gu
+esses]/);
            } else {
                $good_guesses .= "$guess";
            }

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In reply to Re^2: Resetting variables by yacoubean
in thread Resetting variables by yacoubean

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