I have been seeing books of these puzzles turning up in every grocery store etc, but until recently, never bothered to try it out. I have taken quite a liking to it, although I am not particularly good at it as yet. With no interest in clogging up our house with yet more books, I have been checking out the various online versions to varying levels of satisfaction.
My favourite site? Simply Sudoku which is nice and plain, allowing you to concentrate on the damn numbers. It doesn’t try and make you buy a full, downloadable version or register or any of that crap. You just pick a skill level and have at it.
My thanks to Mathew for putting it together.