I see the Daily Express have started to publish Sudoku puzzles. Presume they are like the Telegraph and Mail in that they are "unofficial" as I've seen nothing on this site about it.
Anyone got any views as to what they are like? (ie do they have the Mail/Telegraph bane of not necessarily having a unique solution, level of difficulty etc)?
The one I tried had a unique solution and was quite easy.
By the way, are the unofficial versions allowed to use the name Sudoku? I didn't think they were. I don't know about the Mail (as that paper is just drivel) or the Telegraph, but the Express certainly uses the name.