The domain sodoku dot com appears to be a typo for sudoku.com , and the publicly listed registrant is hidden behind Domains By Proxy, LLC rather than a named individual.

The site itself is associated with Easybrain , which announced that it acquired www.sudoku.com from Gaming Realms and moved its Sudoku game to the web.

So the practical answer is:

  • Registered owner on public WHOIS: Domains By Proxy, LLC.
  • Operational owner/brand behind the site: Easybrain.

If you want, I can also help check whether you meant a different spelling or a different domain.