Sudoku Primer 348 - The Elusive Sudoku Opposite Pattern
Sudoku Primer 183 - Using Four Sudoku Tricks to Find One Number
Sudoku Primer 328 - Unique Rectangles Help Solve a Diabolical Puzzle
Sudoku Primer 248 - Persevering Through a Tough Puzzle
Sudoku Primer 345 - The Sudoku Wall & Plus Patterns
Sudoku Primer 347 - Nikoli Publishing's X-Treme Sudoku "Answer Sheet"
Sudoku Primer 334 - Two Hidden Corner Patterns Make This Puzzle Easy
Sudoku Primer 344 - Tricky Spots in a Diabolical Puzzle
Sudoku Primer 310 - The Corner Pattern Saves the Bacon
Sudoku Primer 247 - Finding and Using the Offset Pattern
Sudoku Primer 196 - The Sudoku Diagonal Pattern and How to Find & Use It
Sudoku Primer 212 - Good Sudoku Gate Pattern Examples
Sudoku Primer 201 - Sudoku Patterns and a New Pattern
Sudoku Primer 199 - Multiple Sudoku Triplet Examples
Sudoku Primer 325 - Be Very Afraid - A Pop Quiz!
SudokuPrimer 43 - Two patterns and hidden patterns to master Sudoku puzzle solving
Sudoku Primer 294 - A Spontaneous Solve of a Diabolical Puzzle
Sudoku Primer 158 - Sudoku Techniques used to solve a diabolical puzzle (answer sheet)
Sudoku Primer 346 - Nikoli Publishing's "X-Treme Sudoku" Pop Quiz
SudokuPrimer 28 - from twins to nonuplets in a hard puzzle
