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Futoshiki blog
Strategy guides, solving techniques, and tips for every grid size. Start with the complete strategy guide, then master inequality chains. Prefer to just play? Jump in below.
What Is Futoshiki? The \"Greater Than Sudoku\" Explained
What is Futoshiki? The 'greater than sudoku' explained: how the inequality puzzle works, what the < > signs mean, and why it has so many names.
Futoshiki Grid Sizes: From 4x4 to 9x9 Explained
Futoshiki grid sizes explained, from 4x4 to 9x9. How board size changes difficulty, which size to start with, and how the inequality logic scales up.
Futoshiki Strategy: A Complete Guide to Solving Inequality Puzzles
A complete Futoshiki strategy guide. Learn to solve inequality puzzles in the right order — from Latin square basics to inequality chains and forcing, beginner to expert.
Advanced Futoshiki Techniques: Beyond Inequality Chains
Advanced Futoshiki techniques for expert solvers: two-way forcing, naked and hidden pairs, constraint propagation, and scaling to 7x7 and 9x9 inequality puzzles.
Futoshiki Tips and Tricks to Solve Faster
Practical Futoshiki tips and tricks to solve inequality puzzles faster — from reading the arrows to chains, forcing, and the mistakes that cause restarts.
Futoshiki vs Sudoku: Is It Really Similar?
Futoshiki vs Sudoku: how the inequality puzzle compares to sudoku, whether it's harder, and which to play. A clear look at arrows versus 3x3 boxes.
How to Solve Futoshiki: A Step-by-Step Guide for Beginners
Learn how to solve Futoshiki step by step. A beginner's walkthrough of the inequality arrows, your first moves, and a full worked 4x4 example — no math, no guessing.
Mastering Inequality Chains: The Key Futoshiki Technique
Inequality chains are the key Futoshiki technique. Learn how runs of < and > signs force digits, with worked examples, and use them to crack hard inequality puzzles.
The History of Futoshiki: Japan's Inequality Puzzle
The history of Futoshiki: what the Japanese name means, its Latin-square roots, how it spread after the sudoku boom, and why it's also called the greater than sudoku.