You say you can't get enough sudoku? Challenge accepted!
With more than 900 puzzles at all difficulty levels (gradually
increasing from easy to medium to hard), this massive collection should
be enough sudoku for anyone--for a while, anyway. The pages are
perforated, perfect for grabbing a few puzzles to toss in your bag. Try
tackling the whole book yourself to see your sudoku skills grow, or
share it with family members who can each solve at the level of
challenge they want.