Sudoku Primer 78 - in-depth look at loner cells (sudoku benefits)
Expert Sudoku Tips And Tricks - SHC #78
Sudoku Primer 80 - ambiguity rule in a hard puzzle - Sudoku To Go vol 104 (sudoku tips and tricks)
Sudoku Primer 282 - Learn How to Spot and Use Identical Twins
Sudoku Primer 246 - The Hard-to-Spot Opposite Pattern
78 Sudoku
Sudoku Primer 281 - How to Solve “The Mole 1” Without Pencil Marks – Sudoku Primer Collaboration
Sudoku Primer 77-Subscriber request solving diabolical puzzle-Sudoku To Go vol 104 (sudoku twins)
Sudoku Primer 79 - solving the 'hardest Sudoku we've seen in a newspaper' (sudoku extreme)
dxSudoku #78 Improved W-Wing Search Algorithm
SudokuPrimer 55 - solving single cells & row, column, square completion
Sudoku Primer 115 - Quick scanning for twins & triplets
Sudoku-Good Tricks for a Tough Puzzle-K S Rao-IR-English (78)
SudokuPrimer 6 Loner cells and identical twins
Tutorial #84 Sudoku. Many ways to cook an egg.
Sudoku Primer 86 - Solving a diabolical puzzle (pseudo-quiz) (sudoku tutorial, sudoku rules)
SudokuPrimer 7 - Ghost numbers
Sudoku Primer 199 - Multiple Sudoku Triplet Examples
SudokuPrimer 2 - Finding more info from Loner cells
Sudoku Primer 150 - the diagonal pattern
