Rules of Suguru are updated

Just to let you know that I have added new content to Rules of Suguru. In fact I added new strategies for solving the most difficult Suguru , by the same occasion I have changed the form of this article. This is just the begining, I will add more technics soon. I will eventually offer you these kind of Suguru in Innoludic. I intend to write a book on how to solve the extreme Suguru, if I find the time and the courage to undertake this task.