Sudoku Primer 239 - Getting through a hard spot, then two more
Sudoku Primer 235 - Patterns, Patterns and Hidden Patterns
Sudoku Primer 216 - Keep Chipping Away to Solve Diabolical Puzzles
Sudoku Primer 229 - Keep Your Eyes on the Entire Sudoku Puzzle
Sudoku Primer 246 - The Hard-to-Spot Opposite Pattern
Sudoku Primer 78 - in-depth look at loner cells (sudoku benefits)
Sudoku Primer 238 - Solving a Woman's World "Challenging" sudoku Puzzle
Sudoku Primer 241 - Unrelated Numbers That Can Find Twins
Sudoku Primer 248 - Persevering Through a Tough Puzzle
Sudoku Primer 221 - Using A Non-Traditional Sudoku Technique
Sudoku Primer 247 - Finding and Using the Offset Pattern
Sudoku Primer 249 - Tough Subscriber Request Puzzle
Sudoku Primer 232 - Getting Past a Major Roadblock in a Sudoku Puzzle
Sudoku Primer 250 - Using Two Techniques to Get Unstuck (Subscriber Request)
Sudoku Primer 243 - Triplets Save the Day
Sudoku Primer 288 - Solving Puzzles Using Complementary Thinking
Sudoku Primer 233 - Think Conversely While Solving
EASY SUDOKU 284 SUDOKU 数独 סודוקו سودوكو सुडोकू СУДОКУ 數獨 스도쿠 ՍՈՒԴՈԿՈՒ ซูโดกุ სუდოკუ ΣΟΥΔΟΚΟΥ
Sudoku Primer 236 - A Sudoku Pop Quiz
Sudoku Primer 251 - Five Techniques needed to Find One Number
