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

These are previously unpublished quality Su Doku grids from the puzzle providers to The Times, and help to develop you to take on Extreme Su Doku. The 200 puzzl

These are previously unpublished quality Su Doku grids from The Times, and help to develop you to take on Extreme Su Doku. The 200 puzzles in this collection of

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