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Windmill Sudoku 5 in 1

100 Windmill Sudoku Windmill Sudoku = 5 sudoku puzzles that overlap each other. All grids must solved according to the Sudoku rules.

The Active Brain- 500 Hard Sudoku Puzzles

Active Brain Series bumper book of 500 hard Sudoku puzzles with solutions. Sudoku is a fun way to exercise your brain and there are plenty of puzzles in this book to give it a really good workout The...

The Ultimate in Sudoku Techniques! the Challenger's Preferred Sudoku Book

Brain Gym- Sudoku

Put your brain through it's paces with this Brain Gym book of 1000 Medium difficulty Sudoku puzzles, perfect for taking your Sudoku to the next level. We exercise our bodies but our brains need a work...