Advanced Sudoku — 13 posts
A clear comparison of hard Sudoku vs expert Sudoku, including the usual skill gap, why labels vary, and how to know when you are ready to…
Read article →A practical guide to solving hard Sudoku on paper, with note-taking rules, cleanup habits, and a step-by-step logic routine for newspaper and printable grids.
Read article →A practical daily hard Sudoku guide that shows how to use a repeatable logic routine, avoid burnout, and solve tough puzzles more cleanly.
Read article →Learn how to solve extreme Sudoku with a clean order of operations, better pencil marks, and the right advanced techniques.
Read article →Learn how to solve evil Sudoku without guessing using a repeatable logic-first routine built around notes, eliminations, fish, and chain techniques.
Read article →Use these hard Sudoku tips to move past stalled grids without guessing. This logic-first checklist shows what to try after singles stop working.
Read article →A practical guide to Empty Rectangle Sudoku, including what the box pattern means, why the elimination works, and how to verify it without guessing.
Read article →A plain-English guide to W-Wing Sudoku, including the core logic, a simple example, spotting checklist, and the mistakes that cause false eliminations.
Read article →A practical guide to finned X-Wing Sudoku, including what the fin does, why the eliminations work, and how to avoid the most common mistakes.
Read article →Learn how to solve hard Sudoku with a repeatable step-by-step method, from pencil marks and hidden singles to locked candidates and X-Wing.
Read article →