Lesson 10. Sudoku 3 empty cells in a line within a block

Sudoku. Tutorial #10 The importance of ramifications.

Sudoku for Kids Lesson 10, 11 Vertical Blocks. What a completed puzzle looks like.

Tutorial #50 Solving a hard puzzle from the beginning to the end

Tutorial #99 WOW Lots to learn for all levels.

Tutorial #100 A SPECIAL GUEST.

Tutorial #56. A difficult puzzle solved from beginning to end. Lots to learn.

Sudoku Tutorial # 88 The many tricks for Matching Pairs.

Tutorial #79 A sudoku Puzzle to blow your mind.!!! Locked little numbers.

Tutorial #80 A difficult sudoku puzzle made easy

Tutorial #82 Sudoku. An Unbelievable Technique. (locked little numbers)

Sudoku Tutorial #62. How to spot an X wing using rows, and then knowing what to do!

Tutorial #77 Small square within a block trick.

Tutorial #92 Always something to learn. Intermediate level.

Sudoku tutorial #69. Amazing puzzle with lots to learn with a breakthrough point.

Sudoku Tutorial #85 Solving a DIABOLICAL PUZZLE.

Tutorial 58. Hard sudoku puzzle with lots of techniques.

Tutorial #40 A must know technique. NOT a puzzle.