Sudoku Primer 170 - Various Sudoku Techniques to Solve a Hard Puzzle
Sudoku Primer 172 - 4 Sudoku Tricks to Find One Number and Break Open the Puzzle
Sudoku Primer 169 - Sudoku Techniques to Make a Hard Puzzle Easy
Sudoku Primer 171 - Sudoku 'master the basics of advanced solving' - requested puzzle
Sudoku Primer 167 - Requested by User - Sudoku Patterns & Techniques
Sudoku Solving- English- Easy Method for a tough puzzle- K S Rao (170)
Sudoku Primer 211 - Dell Challenger Puzzle Solved Using Four Patterns
Sudoku Primer 178 - A Beautiful Sudoku Puzzle - Numbers Fell Into Place
Sudoku Primer 174 - Sudoku #atHome, Sudoku #withMe - Learn how to Solve Sudoku Puzzles
Sudoku Primer 177 - When Sudoku Gets Tough, Look Elsewhere
Sudoku Primer 189 - Look for Leftovers While Solving Sudoku
Sudoku Primer 190 - Learn To Use the Sudoku Opposite Pattern
Sudoku Primer 256 - Getting Unstuck With Unique Rectangles
Sudoku Primer 161 - Sudoku Hidden Triplets and how they solve a diabolical puzzle
Sudoku Primer 156 - Sudoku Unique Rectangles (UR) used to master difficult puzzles
How to solve a Repeating Neighbors Sudoku(Hard Sudoku)
Sudoku Primer 173 - Using sudoku patterns and techniques together to solve a difficult puzzle
Sudoku Primer 108 Using two tricks to break through a diabolical puzzle
Sudoku Primer 267 - Two Techniques to Get Us Past a Hard Spot
Sudoku Primer 186 - Sudoku Double Row & Column Elimination Techniques
