Featuring 400 Sudoku puzzles, this book contains challenges, levels of difficulty, and varieties of number-placement (and letter-placement) puzzles. It also contains step-by-step instructions, tips and killer strategies from the founder of the International High IQ Society and confirmed Sudoku...
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Featuring 400 Sudoku puzzles, this book contains challenges, levels of difficulty, and varieties of number-placement (and letter-placement) puzzles. It also contains step-by-step instructions, tips and killer strategies from the founder of the International High IQ Society and confirmed Sudoku addict, Nathan Haselbauer.
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