Sudoku Primer 288 - Solving Puzzles Using Complementary Thinking
Sudoku Primer 297 - Using The Sudoku n-alike Technique
Sudoku Primer 271 - No Cross-Hatching Possible at the Start
Sudoku Primer 289 - Use Sharp Focus When You Get Stuck
Sudoku Primer 272 - Finding Next Number With Triplets & Double Row Elimination
Sudoku Primer 311 - DCE, DRE, Ghosts & Twins Rescue Us
Sudoku Primer 307 - Finding and Using Sudoku Identical Twins
Sudoku Primer 299 - Look for Numbers That ARE There
Sudoku Primer 282 - Learn How to Spot and Use Identical Twins
Sudoku Primer 294 - A Spontaneous Solve of a Diabolical Puzzle
Sudoku Primer 202 - Two or Three Techniques to Get Through Rough Spots
Sudoku Primer 285 - Six Things to Find One Number
Sudoku Primer 251 - Five Techniques needed to Find One Number
Sudoku Primer 290 - Another Pop Quiz! See How Well You Do
Sudoku Primer 315 - Twins in Containers - and How to Spot Them
Sudoku Primer 298 - Advanced Creativity With Twins (Subscriber Request)
Sudoku Primer 334 - Two Hidden Corner Patterns Make This Puzzle Easy
Sudoku Primer 68 - pop-quiz solving a hard puzzle (sudoku hard how to solve)
Sudoku Primer 306 - Using Twins, Triplets, Quads & URs to Find one Number
Sudoku Primer 317 - Using Combinations of Patterns
