The Big Book of Jigsaw Sudoku: 400 Jigsaw Sudoku Puzzles

Printed on high-quality paper that will easily withstand the constant erasing and re-writing that a Sudoku puzzle requires, this book contains 400 graded Jigsaw Sudoku puzzles. The 400 puzzles are broken down as...

• 100 easy puzzles. Perfect if you've never played Jigsaw Sudoku before!
• 100 medium puzzles. A little more challenge.
• 100 hard puzzles.
• 100 tough puzzles. Perfect for those who are experienced Jigsaw Sudoku puzzlers looking for extra challenge.

Every puzzle has a unique solution and can be solved by logic alone - no guessing required. Full answers are given in the book.

Jigsaw Sudoku is very similar to standard Sudoku, but instead of all the regions being 3×3 squares, they are instead irregular 'jigsaw' shapes.