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

How To Do Hard Sudokus In 10 Minutes

Top Nine Most Often Used Strategies for Solving Expert Sudoku Puzzles

Techniques for Hard Sudoku

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

In which I solve an EXTREME SUDOKU for Twitter

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

Easy Solving for HARD Level Sudoku Puzzles: Solve With Me

Sudoku solution – Los Angeles Times 31 October 2024 Hard level

Crack Hard Sudoku Puzzles With the Skyscraper Pattern

Making a Hard Sudoku really easy

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

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

Solve Diabolical Sudoku Puzzles - Very Hard

How to Solve a Sudoku Game

Tutorial #80 A difficult sudoku puzzle made easy

Hard Sudoku Puzzle Made Easy: Solve With Me

The Simple Trick For Hard Sudokus

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

Tutorial 58. Hard sudoku puzzle with lots of techniques.