In which I solve an EXTREME SUDOKU for Twitter
X-Wings and the Rectangle Rule for Solving Medium to Hard Sudoku Puzzles
Y-wing (XY Wing) - an Advanced Sudoku technique
How to Solve Medium Sudoku Puzzles: Sudoku Intermediate Tutorial #1
Techniques for Hard Sudoku
Solve With Me: Can YOU solve this New York Times Medium Sudoku?
How to play Sudoku
Tutorial #40 A must know technique. NOT a puzzle.
Sudoku Dancing until you Drop
How To Solve "Expert"-level Sudoku
Tutorial #99 WOW Lots to learn for all levels.
Expert Sudoku: The Basic Techniques Used By Champions
Solve With Me | Follow Along: How to Solve a MEDIUM Sudoku Puzzle - Episode 6
Improve At Sudoku: What To Do When You Get Stuck
Expert Level Sudoku
How to Solve a Medium Level Sudoku from the New York Times
Easy Solving for HARD Level Sudoku Puzzles: Solve With Me
Sudoku 'expert' level tricks. Sudoku expert level. How to solve sudoku expert level #puzzle
Solving the Times puzzles (not crosswords or sudoku!)
Sudoku Tutorial: Going From Easy/Medium To "Hard" Puzzles