Perfect for coffee breaks, commutes or relaxing at home, this bumper collection of 300 brand new ultimate killer sudoku puzzles is guaranteed to provide you wit
Just when you thought it was safe to pick up a pencil Killer Su Doku is based on the original Su Doku grid, with the same rules and numbers—1 to 9—but with
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
Containing a massive 300 killer sudoku puzzles packaged in a stylish paperback, this is the perfect killer sudoku gift book for adults of any age. With a mix of
The ideal gift for su doku enthusiasts. If you like to live dangerously and push beyond your mental comfort zone, steel yourself for The Times' toughest Ultimat