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Little Killer Sandwich Sudoku Skyscraper Sudoku Outside Sudoku
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Kropki Sudoku XV Sudoku Consecutive Non-Consecutive Greater Than Odd / Even
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Anti-King Anti-Knight Anti-Consecutive
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Clone Sudoku Chaos Construction Sukaku View All Variants →
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Home› Blog› Notes & Pencil Marks

Sudoku Articles Tagged "Notes & Pencil Marks"

6 articles about Notes & Pencil Marks — guides, techniques and strategy.

How 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, 2026

The 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, 2026

How 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, 2026

Essential Sudoku Terminology for Every Serious Player

Naked Singles, Hidden Pairs, locked candidates, conjugate pairs — Sudoku has its own vocabulary. Her…

May 16, 2026

Absolute 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, 2026

Beginner'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
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