SudokuPrimer 28 - from twins to nonuplets in a hard puzzle
SudokuPrimer 20 two techniques to help solve a hard puzzle
SudokuPrimer 10 Solving an entire 'Diabolical' puzzle
Sudoku Primer 78 - in-depth look at loner cells (sudoku benefits)
SudokuPrimer 8 - Twins, Triplets and other relationships
SudokuPrimer 31 - patterns, patterns, patterns
SudokuPrimer 34 - tips for solving a hard puzzle - Sudoku To Go vol 101
SudokuPrimer 19 tutorial for solving a hard puzzle - Sudoku To Go vol 99
SudokuPrimer 26 Quadruplets & solving individual cells - Sudoku To Go vol 100
Sudoku Primer 281 - How to Solve “The Mole 1” Without Pencil Marks – Sudoku Primer Collaboration
SudokuPrimer 9 - tricks for solving columns using twins
SudokuPrimer 48 - pseudo-quiz - why does that number go there?
Sudoku Primer 151 - Using Pattern Tricks to Solve This Puzzle
SudokuPrimer 35 - tips for solving a diabolical puzzle - Sudoku To Go vol 101
SudokuPrimer 18 tutorial for solving a diabolical puzzle - Sudoku To Go vol 99
SudokuPrimer 24 techniques for mastering a hard puzzle - Sudoku To Go vol 100
SudokuPrimer 57 - having fun finding tricks in medium puzzles
Sudoku Primer 201 - Sudoku Patterns and a New Pattern
Sudoku Primer 165 - The Powerful Sudoku Opposite Pattern & How To Use It
SudokuPrimer 36 - tips to solving a diabolical puzzle using twins and triplets
