1000 Sudoku Puzzle Books Hard Extreme: Brain Games for Adults - Logic Games For Adults (Book Panda Puzzle)(Paperback)

This book contains 1000 sudoku puzzle books hard, very hard & Extreme. All of the puzzles inside the book are 9x9 in hard to extreme level.
Sudoku rules are easy. Each number 1,2,3,4,5,6,7,8 and 9 must appear only once in each row, column, and region. Complete this puzzle so that every row across, every column down
and every region contains the numbers 1 to 9.
Each row and each column have only one and exactly one of each of the numbers 1,2,3,4,5,6,7,8,91000 Sudoku Books in hard, very hard and extreme level Sudoku puzzles grid size in the book are 9x9 that are played with nine number 1,2,3,4,5,6,7,8,9 An answer key for each sudoku puzzle Puzzles are printed on high quality white paper, paper size 8,5 x 11 inchesA simple instructions for beginnersSudoku puzzles are a proven method for enhancing logic skills. As a
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