The Big Book of 16 16 Giant Sudoku: 200 16 16 Sudoku Puzzles, Paperback

This is a book of 200 Giant 16 16 Sudoku puzzles. These puzzles work in exactly the same way as traditional Sudoku puzzles, but a bit bigger to offer a bit more challenge. Each row, column and region must contain the numbers 1-9, but they must also contain one each of the letters A, B, C, D, E, F and G. You can still use exactly the same techniques to solve these puzzles, but they will take you a little longer There are 200 puzzles altogether, split up as follows.

• 50 Easy puzzles. Ideal to get started.
• 50 Medium puzzles. For you to move on to once you start feeling more confident.
• 50 Hard puzzles. Getting harder
• 50 Tough puzzles. For the diehard Sudoku fans.