Sudoku How to Solve Difficult Sudoku Puzzles Step by Step
A calm, repeatable process for Hard and Expert Sudoku: how to start, when to add notes, how to recover from a stall and how to check your work…
Sudoku
Techniques and step-by-step methods for solving Sudoku, from your first grid to Expert puzzles.
Sudoku How to Solve Difficult Sudoku Puzzles Step by Step
A calm, repeatable process for Hard and Expert Sudoku: how to start, when to add notes, how to recover from a stall and how to check your work…
Sudoku Advanced Sudoku Techniques for Experienced Players
When singles run dry, these techniques take over: naked and hidden pairs, pointing and box-line reduction, X-Wings and XY-Wings — explained plainly…
Sudoku Sudoku Strategies for Beginners
New to Sudoku? These beginner techniques — scanning, cross-hatching, naked singles and smart note-taking — will let you solve Easy and Medium puzzles…