Holmes presents a book of logical puzzle sudoku very levels going up. This is that sudoku collection. Fitness for the brain. The Kakuro levels are 8x8 + 9x9 + 14x14 + 15x15. 9x9 Chain sudoku puzzles easy - medium levels. A chain of Sudoku puzzles with the names: "Sudoku Girus", "Strymko". Book for superior mental support. In addition, there are links to download 500 puzzles. I hope you enjoy this book. Best Regards, Basford Holmes
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