I only just discovered the website below, even though it was posted a while ago on the forum. I did the free Samurai there out of interest last night to see how easy/difficult it was, and I personally thought it was a good challenge - a bit harder than most of the recent Saturday offerings in the Times. I'm even tempted to pay to have a look at the Premium ones on offer there - has anyone else had a look at those, and are they worth the investment, albeit minimal ?
http://sudoku.top-notch.co.uk/gattai5.asp [ broken link ]
