Lo Shu: Number Brain Puzzles

Three original number puzzles in one calm place to think. Lo Shu is built around the oldest magic square in the world — numbers that have to agree with each other. No timers shouting at you. No lives to buy. Just a grid, a few numbers, and the quiet click of a piece landing where it belongs. ▸ LO SHU — the magic square Fill the grid so every row, every column and both diagonals add up to the same target. Each number is used exactly once. Simple to state, genuinely hard to finish. ━━━━━━━━━━━━━━━━━━━━━━━━ WHAT'S INSIDE ━━━━━━━━━━━━━━━━━━━━━━━━ • 1,300+ handcrafted levels • Five difficulty tiers — Easy, Medium, Hard, Master, Grandmaster • A new Daily Challenge every day, with a streak worth protecting • 111 achievements, each with its own illustrated trophy • Play Games leaderboards — compare, or don't • Hints when you want them, never forced on you • Pip, your jelly guide, walks you through your first levels ━━━━━━━━━━━━━━━━━━━━━━━━ BUILT TO BE PLEASANT ━━━━━━━━━━━━━━━━━━━━━━━━ • Plays fully offline — the whole game is on your device • Progress syncs to Play Games, so a new phone means nothing is lost • Light and dark themes that actually suit a number grid • Drag a number onto a cell, or tap the cell then the number • No account. No sign-up form. We never ask your name, email or age • One optional purchase removes ads forever — nothing else is sold ━━━━━━━━━━━━━━━━━━━━━━━━ FOR THE PATIENT ━━━━━━━━━━━━━━━━━━━━━━━━ Some levels take a minute. Some take a week of coming back to them. Both are the point. Lo Shu doesn't measure you against a clock — it just waits. Free to play, supported by ads. Ad personalisation is your choice, and you can change or withdraw it at any time from Privacy preferences. Privacy policy: https://loshupuzzle.com/privacy.html Terms of use: https://loshupuzzle.com/terms.html