"Not since the Rubik's Cube has a puzzle been this hot... It can lower your blood pressure, relieve stress - even make you smarter. It might just be the least-harmful addiction around." (Newsweek).
The Puzzle Society offers more than a hundred sudoku puzzles in this effortlessly portable, erogonomic package. Features include a hardcover breakaway binding that opens flat to reveal a stack of peel-and-stick sudoku puzzles.
