Face off with a master.
Don't settle when it comes to your Sudoku: Choose puzzles hand-crafted
by Nikoli, the Japanese company that invented the game. Every puzzle in
this calendar comes from the minds of the best Sudoku makers in the
world--not from the computer. And each puzzle hits that sweet spot
between toughness and elegant solvability. The week begins with the
easiest puzzles and ramps up the difficulty day by day. Just in case you
need them, solutions are printed on the back of the pages. Printed on
responsibly sourced paper and 100% recyclable.