This book presents 400 challenging sudoku puzzles. The answers are provided at the end, but can you solve the puzzles without looking?

Extreme Sudoku Puzzle Book If you are an expert at Sudoku but want an extra challenge then you will love our Extreme Sudoku Puzzles. Featuring 156 Puzzles of 3

If you like solving Sudoku puzzles you are going to love the Variety Sudoku Puzzle Book Series. Keep the brain active and improve your Sudoku solving skills. Fe

This Hard Sudoku Puzzle Book Volume 2 has been designed for fun for all ages and can be played by children, adults and senior citizens alike - suitable for all

Being on the run doesn't mean giving up your crosswords! From the pages of "The New York Times" comes this brand-new collection of easy-to-solve, fast-to-finish