Sudoku Articles Tagged "Notes & Pencil Marks"
11 articles about Notes & Pencil Marks — guides, techniques and strategy.
What to Do When You Misplace a Number in Your Sudoku Puzzle
A misplaced number in Sudoku can silently ruin your progress. Here is exactly what to do when you re…
Jul 17, 2026Identifying and Fixing Mistakes Before They Ruin Your Grid
A wrong digit in Sudoku can propagate silently through the whole grid. Here is how to spot mistakes …
Jul 02, 2026Exploring the Concept of Locked Candidates and Claiming Strategies
Locked candidates is one of the most powerful intermediate techniques — and one of the first you'll …
Jun 26, 2026Using Conjugate Pairs and Strong Links to Break Tough Grids
Conjugate pairs and strong links are the building blocks of advanced Sudoku chains. Understanding th…
Jun 20, 2026How to Spot Y Wing and W Wing Patterns in Expert Sudoku
Y-Wing and W-Wing are chain-based techniques that let you eliminate candidates from cells that seem …
Jun 17, 2026How to Identify and Use Skyscraper and XY Wing Patterns
Skyscraper and XY-Wing are two of the most powerful intermediate techniques in Sudoku. Here is how t…
Jun 08, 2026The Strategy for Solving Medium Difficulty Sudoku Puzzles
Medium Sudoku requires more than scanning — but not as much as most players think. Here is the compl…
Jun 05, 2026How to Start a Sudoku Puzzle the Right Way Every Time
The first moves you make in a Sudoku puzzle set the pace for everything that follows. Here is the ri…
May 28, 2026Essential Sudoku Terminology for Every Serious Player
Naked Singles, Hidden Pairs, locked candidates, conjugate pairs — Sudoku has its own vocabulary. Her…
May 16, 2026Absolute Beginner Guide to Starting Your First Sudoku Puzzle
Never solved a Sudoku before? This step-by-step guide explains the grid, the one golden rule, and ex…
Apr 25, 2026Beginner's Guide to Sudoku
New to Sudoku? This guide walks you through the rules, the grid, your first moves, and the mistakes …
Apr 23, 2026