Argio-Logic the Italian sudoku website will be hosting its Contest over the coming weekend. The sudoku types are listed below.
The contest starts on Thursday, 13th Jan 2011 at 9:00 PM GMT and ends on Monday, 17th Jan 2011 at 9:00 GMT. You can log in anytime during the weekend to take the test. Once you have started the contest you will have 150 minutes to complete the puzzles.