Sudoku Blog
Strategy guides, history, brain science, and tips for every level.
Featured Article
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 exactly how to make your first move — no math required.
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Guide
Exploring the History and Global Origin of Sudoku
Sudoku wasn't invented in Japan. Discover the true story of how an American architect created it in 1979, how Japan transformed it, and how it conquered the world.
Guide
Why Sudoku is a Logic Puzzle and Not a Math Game
Many people avoid Sudoku because they think it requires math. It doesn't. Here's the proof — including a letter-grid test — that Sudoku is pure logic.
Guide
Beginner's Guide to Sudoku
New to Sudoku? This guide walks you through the rules, the grid, your first moves, and the mistakes to avoid — everything you need to go from zero to solving.