Sudoku is one of the world's most beloved puzzle games of all time The objective of Sudoku is to fill a 9 9 grid with numbers so that every row, column, and 3 3 box contain each of the numbers 1 through 9 only once. Sudoku is a challenging but fun puzzle game of logic, memory, and numbers. This book contains 50 pro Sudoku puzzles, not for the faint of puzzle-solving heart. For more Sudoku fun, check out the other volumes in the Pro Sudoku Puzzles series
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