45:15 Tutorial #81 Elimination Heaven. A neat trick. You can do it. Locked Little Numbers. Sudoku Guy 98.6K views - 4 years ago
4:28 X-Wings and the Rectangle Rule for Solving Medium to Hard Sudoku Puzzles Learn Something 498.8K views - 4 years ago
35:35 Tutorial #56. A difficult puzzle solved from beginning to end. Lots to learn. Sudoku Guy 865.6K views - 6 years ago
26:03 Solve with Me This IMPOSSIBLE Sudoku Puzzle Step By Step Learn Something 349.7K views - 1 year ago
50:47 Tutorial #79 A sudoku Puzzle to blow your mind.!!! Locked little numbers. Sudoku Guy 185.1K views - 4 years ago
6:10 Tutorial 53 Spotting a 3X3. A powerful technique in sudoku puzzles. Sudoku Guy 55.5K views - 6 years ago