Sudoku Primer 78 - in-depth look at loner cells (sudoku benefits)
Expert Sudoku Tips And Tricks - SHC #78
78 Sudoku
Sudoku Primer 282 - Learn How to Spot and Use Identical Twins
dxSudoku #78 Improved W-Wing Search Algorithm
Sudoku Primer 77-Subscriber request solving diabolical puzzle-Sudoku To Go vol 104 (sudoku twins)
Sudoku Primer 246 - The Hard-to-Spot Opposite Pattern
Sudoku Primer 281 - How to Solve “The Mole 1” Without Pencil Marks – Sudoku Primer Collaboration
Sudoku Tutorial #85 Solving a DIABOLICAL PUZZLE.
SudokuPrimer 7 - Ghost numbers
SudokuPrimer 6 Loner cells and identical twins
Sudoku Primer 80 - ambiguity rule in a hard puzzle - Sudoku To Go vol 104 (sudoku tips and tricks)
Sudoku Primer 79 - solving the 'hardest Sudoku we've seen in a newspaper' (sudoku extreme)
SudokuPrimer 2 - Finding more info from Loner cells
SudokuPrimer 42 - offset and corner sidewalk patterns
Sudoku Primer 150 - the diagonal pattern
Sudoku Primer 115 - Quick scanning for twins & triplets
Sudoku Primer 86 - Solving a diabolical puzzle (pseudo-quiz) (sudoku tutorial, sudoku rules)
Sudoku Primer 114 - ambiguity rule (Unique Rectangle) examples
Sudoku Primer 343 - Sudoku Rules & How To Solve Puzzles
