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validate sudoku leetcode Chain Strategy: The Chain strategy, also known as the Direct Elimination technique, involves a series of logical steps that lead to the elimination of a specific number. Additionally, the grid is divided into nine 3x3 subgrids, called "boxes" or "blocks". sudoku kidssudoku chicago sun times If the two numbers are shared between the cells, you can eliminate that number from other cells in the same row, column, or box. Complete the puzzle within the given time limit or solve it as quickly as possible to achieve a higher score. sudoku solver
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By identifying and utilizing empty rectangles, you can eliminate possibilities, solve for missing digits, and avoid contradictions. validate sudoku leetcode Sudoku Tips and Tricks: To help you solve Sudoku puzzles more efficiently, here are some useful tips and tricks: Start with the easy clues: Begin by filling in the squares with the numbers that have only one possible placement. sudoku 6 by 6
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