This enormous Active Brain Series 2 book contains 1,500 medium difficulty Sudoku puzzles with solutions, perfect for the Sudoku enthusiast. With only one level of difficulty there are no wasted puzzles. 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 book is 8.5" by 11" and has 4 puzzles per page with room for notes.
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