The Sudoku Trick All Expert Solvers Know
53:13
Is This Sudoku Impossible?
19:46
These 2 Tricks Can Solve Most Of The World’s Hardest Sudokus
24:59
Sudoku. Niveau 3 : difficile
21:18
Expert Sudoku: The Basic Techniques Used By Champions
35:35
Tutorial #56. A difficult puzzle solved from beginning to end. Lots to learn.
1:00:55
A "Phenomenal" Sudoku
19:04
Sudoku 101: Hidden Triples
18:33