Bro, sudoku is the shit. If you like that, you might like the FTU MA FTU MA games that they have in Korea. They publish a little puzzle book every month or every other month, and it's called "Lotto". It has the explanation of how to do the puzzles. It's a math/logic thing too, and it makes pictures. They're pretty cool. I got absolutely hooked on them when I was going to school in Korea, and now I've got my Mom and my daughter hooked on them too.... If you can't get a copy of the books sent to you, let me know, and I'll make a few copies of some of the puzzles and send them to you to try out.....