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

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Triplets (a.k.a Triples) and Hidden Triplets Explained - A Sudoku Strategy You MUST Know

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The XY Wing a.k.a. the Y Wing: A Useful Sudoku Solving Technique When You Are STUCK !!!

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How to Solve a Sudoku Game

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How To Do Hard Sudokus In 10 Minutes

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A Sudoku Secret to Blow Your Mind - Numberphile

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Tutorial #40 A must know technique. NOT a puzzle.

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GAS Sudoku Walkthrough - Mr. Unpointy by Philip Newman (2025-02-01)

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How to play Sudoku

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Y-wing (XY Wing) - an Advanced Sudoku technique

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Crack Hard Sudoku Puzzles With the Skyscraper Pattern

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Sudoku Primer 185 - Finding Special Relationships in Sudoku Puzzles

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The Matching Pair and Naked Singles – Beginner Sudoku Strategies you MUST know

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How to Play Sudoku for Absolute Beginners

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Pencil Marking candidates and using “Snyder” notation in Sudoku: Complete Example

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A Breakthrough In Sudoku Technique

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Lookout for Hidden Singles, Pairs, Triples, and Quadruples in Sudoku

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Tutorial 53 Spotting a 3X3. A powerful technique in sudoku puzzles.

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