Universal Sudoku: The Best Exercises for The Brain And Memory Sandra Berry Author
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Sudoku (also known as Number Place) is a placement puzzle. The puzzle is most frequently a 9 x 9 grid made up of 3 x 3 subgrids (called regions). Some cells already contain numbers, known as givens. The goal is to fill in the empty cells, one number in each, so that each column, row, and region contains the numbers 1 through 9 exactly once. Each number in the solution therefore occurs only once in each of three directions, hence the single numbers implied by the puzzle's name.sudoku puzzle books - sudoku and crossword puzzle books - sudoku and word search - sudoku book - sudoku board game - sudoku crossword - sudoku game - sudoku games for adults - sudoku gifts - sudoku large print - sudoku medium puzzle books - sudoku medium - sudoku medium hard - sudoku medium level


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