Lesson 6. Sudoku Rule of exclusion. 2 empty cells hint for small numbers.
30:27
Lesson 7. Learn sudoku. The cross /meet technique.
19:22
Lesson 5: Learn Sudoku. The Effect of 3 Numbers in a row or column within a Block
29:43
Sudoku Tutorial # 88 The many tricks for Matching Pairs.
35:35
Tutorial #56. A difficult puzzle solved from beginning to end. Lots to learn.
21:51
Lesson 3: Learn Sudoku. Matching pairs, two empty cells
14:03
This AMAZING Trick Can Solve Extreme Sudoku
13:26
Remote Pairs Sudoku Chain Strategy
33:38