Third-Degree Black Belt Sudoku® (Martial Arts Puzzles Series) - Softcover

This title includes 300 puzzles from prolific & popular puzzle & sudoku author - Frank Longo. It takes a page from karate - another Japanese art - each title is graded by colour: White for easy, Green for medium, Brown for hard & Black Belt for the super-tough! All in a handy-sized format, so puzzle lovers can play this addictive game wherever the mood takes them! Watch out - these sudoku might crush even the most stalwart of solvers! With a separate sudoku book for every level, all puzzle lovers can play this wildly popular, incredibly addictive game! From prolific and popular puzzle and sudoku author - Frank Longo, it takes a page from karate - another Japanese art - as each title is graded by colour: White Belt for easy, Green Belt for medium level, Brown Belt for hard and Black Belt for the super-tough solvers. Plus because each book has an amazing 300 puzzles, the fun can go on for hours.

Frank Longo has had over 2,000 puzzles published since 1993. Frank has written many books for Sterling, such as Hip Pocket Sudoku 9781402740305 and Master Ninja Sudoku 9781402744211.