Sudoku Primer 187 - Getting Past Three Hard Spots in this Puzzle
Sudoku Primer 186 - Sudoku Double Row & Column Elimination Techniques
Sudoku Primer 188 - Sudoku Wall Pattern & Other Techniques
Sudoku Primer 202 - Two or Three Techniques to Get Through Rough Spots
Sudoku Primer 277 - Using Quadruplets - Subscriber Request
Sudoku Primer 210 - Learn How to Use Sudoku Techniques in Tandem
Sudoku Primer 190 - Learn To Use the Sudoku Opposite Pattern
Sudoku Primer 175 - Solving a hard Charles Timmerman puzzle & an Interesting Find About Sudoku @ end
Sudoku Primer 189 - Look for Leftovers While Solving Sudoku
Sudoku Primer 177 - When Sudoku Gets Tough, Look Elsewhere
Sudoku Demonstration - Skyscraper Technique (Example 05)
Sudoku Primer 192 - Answer Sheet to Pop Quiz
Sudoku Primer 197 - Subscriber Request - Hard Puzzle Made Easy Using Triplets and Other Techniques
Sudoku Primer 271 - No Cross-Hatching Possible at the Start
Sudoku Primer 159 - Sudoku - mastering and using the incredible power of twins
Sudoku Primer 193 - Sail Through the Rough Patches in an Expert Puzzle
Sudoku Primer 178 - A Beautiful Sudoku Puzzle - Numbers Fell Into Place
Sudoku Primer 243 - Triplets Save the Day
How to solve a Repeating Neighbors Sudoku(Hard Sudoku)
Sudoku Primer 194 - A Brief History of Sudoku
