Sudoku - Play with Friends

Sudoku Online — Play Against the World

Love Sudoku? Make it a global competition.

Get instantly matched with a random player from anywhere in the world and race to solve the same puzzle first. See their country flag, watch the score gap, and prove you're the fastest grid-solver on the planet.

Ways to play • Online — instant match vs a random world player • Multiplayer — challenge your friends in real time • Leaderboard — climb the weekly global ranking • Solo — Easy, Medium, Hard & Expert puzzles • Daily Challenge — a fresh puzzle every day, keep your streak

Features • Real-time head-to-head Sudoku • Country flags for online opponents • Weekly worldwide leaderboard • Smooth, focused gameplay • No subscriptions or hidden paywalls • Clean design with light & dark themes • Notes, smart hints, optional error checking & auto-save

Train your brain, sharpen your logic, and prove who rules the grid.

Sudoku. No limits. Just logic.