Sudoku 101: Hidden Triples
20:04
Step-By-Step Method For Hard Sudokus
19:27
One Of The Best Classic Sudokus Ever
9:31
Triplets (a.k.a Triples) and Hidden Triplets Explained - A Sudoku Strategy You MUST Know
23:43
Three Diabolical Sudoku Techniques
17:50
The Most Under-Used Sudoku Technique
15:44
dxSudoku #11 Hidden Triple and How To Find Them
18:44
This Sudoku Actually Teaches The X-Wing Technique!
14:03