Play Sudoku Support

Strategies, walkthroughs and beginner guides to sharpen your solving.

Sudoku Strategy

Learn how to find and use Naked Quads in expert Sudoku puzzles. Step-by-step guide with worked examples to help you…

News

Discover how Sudoku puzzles feature in brain health research, what scientists have found, and how daily solving habits may support…

Sudoku Tips

Learn how to use colors and symbols in your Sudoku pencil marks to solve harder puzzles faster. Practical tips and…

Sudoku Strategy

Learn how Pointing Pairs work in Sudoku to eliminate candidates across box boundaries. Step-by-step examples and tips for intermediate solvers.

News

Discover how computers solve Sudoku puzzles using brute force, backtracking, and logic algorithms. A clear guide for curious puzzle fans…

Sudoku Tips

Learn proven techniques to solve any Sudoku puzzle using logic alone. No guessing needed — master elimination, naked pairs, and…

Sudoku Strategy

Learn how to use Remote Pairs in Sudoku—a powerful chain-based technique that eliminates candidates in difficult puzzles. Step-by-step guide with…

News

Discover the staggering mathematics behind Sudoku. How many valid grids exist? We explore the numbers, logic, and combinatorics that power…

Sudoku Tips

Learn how to use pencil marks and candidate notes in Sudoku to solve harder puzzles faster. Step-by-step tips for beginners…

Sudoku Strategy

Master the Swordfish technique in Sudoku. This advanced strategy guide explains how to spot and apply Swordfish patterns to solve…