Thanks folks.I.m not actually looking for sudoku.I do too many already.I was referring specifically to the Saturday Indo.Super one.I can do the normal ones in about 10-mins-60 mins,depending on level.The big Sat. one has 12 grids,letters A-f , no.s 0-12.For weeks now I can't finish and after about 4hrs!!! I give up.Up to a point everything proves itself and then I just get stuck.Any tips.It's driving me nuts.