SudokuPrimer 7 - Ghost numbers
SudokuPrimer 47 - tips to master a diabolical puzzle - Sudoku To Go vol 102
SudokuPrimer 9 - tricks for solving columns using twins
SudokuPrimer 8 - Twins, Triplets and other relationships
SudokuPrimer 35 - tips for solving a diabolical puzzle - Sudoku To Go vol 101
SudokuPrimer 34 - tips for solving a hard puzzle - Sudoku To Go vol 101
SudokuPrimer 24 techniques for mastering a hard puzzle - Sudoku To Go vol 100
Sudoku Primer 154 - Sudoku T Pattern for Solving Today’s Puzzles
SudokuPrimer 18 tutorial for solving a diabolical puzzle - Sudoku To Go vol 99
SudokuPrimer 10 Solving an entire 'Diabolical' puzzle
SudokuPrimer 52 - tricks to solving a hard puzzle - steps to take
SudokuPrimer 4 - Finding numbers after twins, triplets
Sudoku Primer 104 - solving tips for hard puzzle - diagonal pattern
SudokuPrimer 13 tutorial for solving an entire easy puzzle - Sudoku To Go vol 98
SudokuPrimer 23 basics for solving a medium puzzle - Sudoku To Go vol 100
SudokuPrimer 33 - tips for solving a medium puzzle - Sudoku To Go vol 101
SudokuPrimer 5 - Double Row/column elimination
Sudoku Primer 162 - Sudoku Ghost Numbers and how to find other numbers using them
SudokuPrimer 12 tutorial for solving an entire hard puzzle - Sudoku To Go vol 98
Sudoku Primer 198 - The Sudoku Gate Pattern, Ghost Numbers and Other Tricks Make This Easy
Sudoku Primer 251 - Five Techniques needed to Find One Number
Sudoku Primer 217 - Sudoku Unidentified Twins Compared to Other Sudoku Twin Types
SudokuPrimer 11 Sudoku to Go magazines
SudokuPrimer 16 basics for solving an easy puzzle - Sudoku To Go vol 99
Sudoku Primer 190 - Learn To Use the Sudoku Opposite Pattern