How to Find and Use Triplets in Sudoku Puzzles / Tutorial #9
29:10
The Best X-Wing Explanation You Will Ever See! / Tutorial #10
46:45
Empty Rectangles / Sudoku Tutorial #17
15:44
dxSudoku #11 Hidden Triple and How To Find Them
20:10
Triples: the Single Most Important Sudoku technique?
30:06
Unique Rectangles Part 1 / Sudoku Tutorial #20
15:33
'Hard' sudoku made easy - with this simple method
20:17
2 AMAZING Sudoku Tricks That Changed My Life
31:15