that is what they invented internet for: not just the \'normal\' 9x9s we all know are here. this page has the most amazing library I have ever seen of sudoku variants that you can play ONLINE. mini, mega, irregular, diagonal, multi, sum, oddeven. even one that makes sweet looking pictures. treasurely magnificent.
Pick your candidate and go after the votes! 30 levels and more than a few chuckles await as you dodge the fly-swatting media cynics that stand between your candidate and the votes.