Dueloku: Live Sudoku Duels

Sudoku was always a game you played alone. Not anymore.

Dueloku drops you onto the same puzzle as a live opponent and you race — every correct number is a point and fills the grid for both of you. The first one to crack it wins. Think chess.com, but for sudoku.

THE TWIST: THE 5-SECOND BLOCK Guess right, you score. Guess wrong, you're frozen for 5 seconds while your opponent solves uncontested. Every number becomes a decision: play it safe, or gamble for the lead? This single rule turns sudoku into a nerve game.

RANKED, WITH REAL STAKES

• A separate ELO rating for every difficulty: Easy, Medium, Hard
• Matchmaking pairs you with players near your skill
• Win and climb. Lose and drop. Your rating is earned, never bought.

THREE WAYS TO PLAY

• Ranked: competitive matches that move your rating
• Friendly: challenge a friend, just for bragging rights
• Practice: solo solving to sharpen up before you queue

BRING YOUR RIVALS Add friends, challenge them directly, and we'll track your full head-to-head record — wins, losses, and draws against each one, at every difficulty.

SEE EXACTLY HOW YOU WON (OR LOST) Every match ends with a breakdown: final scores, rating change, accuracy, and a flow chart of how the lead swung — including the moment it changed hands. Learn something from every game.

BUILT FOR QUICK SESSIONS Most duels run a few minutes. Queue up on your commute, settle a score on your break, climb a tier before bed.

Sign in with email, Google, or jump straight in as a guest — your progress carries over if you create an account later.

Make sudoku competitive, social, and genuinely thrilling. One puzzle at a time.