Clear your mind with sudoku!Many solvers love sudoku not just for the intellectual challenge or the sheer fun of solving, but because sudoku puzzles help them attain an almost Zen-like state of mental relaxation. Sudoku, to put it simply, help solvers get in the zone. Features:· 100 all-new puzzles· Edited by legendary New York Times crossword editor Will Shortz· Big grids with lots of space for easy solving