The puzzles in this collection of treacherously difficult puzzles will stretch even the most advanced Su Doku enthusiast. You will need to use all of your best

200 New Puzzles -- From Fiendish to Super Fiendish Su Doku, "the crossword without words," comes with a warning: it is seriously addictive. You don't need to be

Su Doku makes every day just a little more fun. You don't need to be a mathematical genius to solve these puzzles; it is simply a question of logic and a little

Part of Jumbo Sudoku series, this title includes over 275 puzzles. It also includes classic Sudoku as well as Samurai, Kakuro, Killer, and 'Son of Sudoku' (Futo