The Original Sudoku Calendar 2006 Author:Workman Publishing Company From the editors at Nikoli, the Japanese puzzle and game company whose expertise is unmatched, THE ORIGINAL SUDOKU CALENDAR 2006 is the gift for intelligent gamers. Arranged from "Very Easy" to "Hard", here are 365 compulsive logic puzzles that celebrate the joy of Sudoku with symmetry , smartness, and elegance - qualities lacking in computer-ge... more »nerated puzzles. It's fiendish fun: every puzzle designed by an author who anticipates your next step and obscures the path, while never leading you into frustration. Prepare to be obsessed.« less