how to solve a hard sudoku puzzle

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How To Do Hard Sudokus In 10 Minutes

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

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Making a Hard Sudoku really easy

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

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Techniques for Hard Sudoku

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In which I solve an EXTREME SUDOKU for Twitter

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How to Solve a Sudoku Game

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Easy Solving for HARD Level Sudoku Puzzles: Solve With Me

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If you like the Tango puzzles, you'll probably enjoy this sudoku

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Tutorial 58. Hard sudoku puzzle with lots of techniques.

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Sudoku Secrets No. 2: The X-Wing #shorts

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Tutorial #50 Solving a hard puzzle from the beginning to the end

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Top Nine Most Often Used Strategies for Solving Expert Sudoku Puzzles

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

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Solve With Me Hard Sudoku Puzzle: Step By Step New York Times Hard Level

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Tutorial #56. A difficult puzzle solved from beginning to end. Lots to learn.

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Crack Hard Sudoku Puzzles With the Skyscraper Pattern

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Improve At Sudoku: What To Do When You Get Stuck

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The Best Sudoku Tip? Use Snyder Notation #shorts

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'Hard' sudoku made easy - with this simple method

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Hard Sudoku Puzzle Made Easy: Solve With Me

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How To Solve Hard Sudoku With X-Wings Sudoku Shorts 65 #sudoku #puzzle #shorts

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Step-By-Step Method For Hard Sudokus

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How to play Sudoku in 30 seconds #sudoku #shorts