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X-Wings and the Rectangle Rule for Solving Medium to Hard Sudoku Puzzles

Lesson #X-wing10: patterns appear often and can be used as a Sudoku solving strategy to eliminate candidates. This quick Sudoku lesson explains how to recognize the X-wing pattern, also known as the rectangle rule, and how to use it as a strategy to solve Medium and Hard level Sudoku puzzles. Keep practicing, and learn something new every day! If you are looking for MORE PUZZLES, you might want to check these out from Amazon. As an Amazon Associate I earn from qualifying purchases: Funster 1000+ Sudoku Puzzles Easy to Hard: https://amzn.to/35mivqB Brain Games Sudoku Large Print Spiral Bound: https://amzn.to/35i90Zp The Ultimate Brain Health Puzzle Book: https://amzn.to/2Sr0gxs