So I taught my 4 1/2 year old to do sudoku. He isn't great at it, but he gets it and enjoys it. People seem AWFULLY surprised that he both likes and can do it. I don't even know it if has an age range! LOL He seemed interested so of course I showed him and then got him his own book.

Anyone else have a little one fascinated by something that people go "WHAT?" about?