http://www.uclick.com/client/mma/sudoc/
I’ve been playing a while. My personal opinion is I’m somewhere between “hard” and “evil”. My objective is to ward off dementia. Though some would say I’m already demented. I have shown many people that it’s really not a hard puzzle.
The AARP site allows you to turn on hints. That puts the possible combinations on the screen. You can then focus on the “rules” to find the right answer.
I only have one gripe. It’s not possible, or I couldn’t figure out how, to turn OFF a hint. If it thinks that 1 is possible for a cell and you KNOW by the rules that it isn’t there’s not way to nuke that little 1! Argh.
Otherwise, it is a good training site for learning.
On a technical note, the “put in all the values and start methodically erasing” technique has allowed me some success with the “evil” class of puzzle. But that’s for another blog posting.
Reinke Faces Life 