Sudoku Primer 315 - Twins in Containers - and How to Spot Them
Sudoku Primer 296 - Lining Up Twins and Triplets to Find Elusive Numbers
Sudoku Primer 313 - Using The Gate Pattern and Twins
Sudoku Primer 314 - Look for Common Rows & Columns
Sudoku Primer 248 - Persevering Through a Tough Puzzle
Sudoku Primer 333 - Diabolical Puzzle With Rough Patches
Sudoku Primer 318 - Familiar Patterns & Techniques Move Us Along
Sudoku Primer 316 - Quadruplets Get Us on the Right Foot
Sudoku Primer 221 - Using A Non-Traditional Sudoku Technique
Sudoku Primer 320 - Look For Fuller Containers - Or Maybe Not
Sudoku Primer 301 - Look For Numbers in Sparse Areas
Sudoku Primer 117 - Subscriber request - diabolical puzzle solved
Sudoku Primer 310 - The Corner Pattern Saves the Bacon
Sudoku Primer 289 - Use Sharp Focus When You Get Stuck
Sudoku Primer 312 - How To Solve Hidden Pairs (Smart Hobbies Collaboration)
Sudoku Primer 322 - Quadruplets: Useful, But Hard to Find
SudokuPrimer 28 - from twins to nonuplets in a hard puzzle
Sudoku Primer 308 - A Pop Quiz on a Medium Puzzle
Sudoku Primer 329 - Finding Subtle Twins Can Be Hard
Sudoku Primer 305 - 'Answer Sheet' to the Pop Quiz
