Sudoku Primer 224 - The Art of Sudoku Without Candidates
Sudoku Primer 125 "Identical Twins" help us solve this diabolical puzzle
Sudoku Primer 217 - Sudoku Unidentified Twins Compared to Other Sudoku Twin Types
Sudoku Primer 223 - 'Answer Sheet' to the Pop Quiz in video 222
Sudoku Primer 185 - Finding Special Relationships in Sudoku Puzzles
Sudoku Primer 165 - The Powerful Sudoku Opposite Pattern & How To Use It
Sudoku Primer 281 - How to Solve “The Mole 1” Without Pencil Marks – Sudoku Primer Collaboration
Sudoku Primer 348 - The Elusive Sudoku Opposite Pattern
Sudoku Primer 115 - Quick scanning for twins & triplets
Sudoku Primer 264 - When You're Stuck, Assess Your Assets
Sudoku Primer 248 - Persevering Through a Tough Puzzle
Sudoku Primer 221 - Using A Non-Traditional Sudoku Technique
Sudoku Primer 222 - A Pop Quiz With a Couple of Tricky Spots
SudokuPrimer 7 - Ghost numbers
Sudoku Primer 186 - Sudoku Double Row & Column Elimination Techniques
Sudoku Primer 240 - Subscriber Request: Double Column Elimination & Patterns Help Us Solve This one
Sudoku Primer 318 - Familiar Patterns & Techniques Move Us Along
Sudoku Primer 313 - Using The Gate Pattern and Twins
Sudoku Primer 204 - Finding Quintuplets & How to Find Other Number Groups
Sudoku Primer 225 - Three Techniques Together to Find a Hard Number
