http://www.perlmonks.org?node_id=21611

use strict;$_=" TlEi QwoIMVq qGrO ]rCXUV";s/q/\\/;my @w=my $z=length; +$_=join# '',map{ (/\s/)?' ':chr(ord($_)^++$z) }split //;while (/[xX]/){push @w, +scalar#( (join'',map{$z=1;join'',grep{$z&&((/[A-Z]/&&(($_.='x')||1))||($z=0))}s +plit//}# split/\s/);s/\s[A-Z]+/ /g;tr/[A-Z][a-z]/[a-z][A-Z]/;}$_=(join ' ', @w[ +($z=~#$x s/1/1/)..(length($w[2])>>1)]);s/[xX]//g;$_=lc;s/n/N/;print;print "\n"; + ## Perl
This is my first obfuscation in perl, so be kind :-) Works with warnings & strict on 5.002_03 on Linux...

Andrew.