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.