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Discover summer reading lists for all ages & interests!
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Take the challenge and deal with double Sudoku diagrams.
Great fun that will move your mind and give you a lot of pleasure.
You don't need any special skills, because every double puzzle you'll solve is followed by the rules of traditional Sudoku.
Here's what you'll find in this book:
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Take 20% off your first order
Enter the code below at checkout to get 20% off your first order