Sudoku Duel

Sudoku Duel combines focused offline puzzle play with competitive online matches. CAREER Start with beginner puzzles and progress through easy, medium, hard, and expert levels. Each game provides a fresh Sudoku board. Use notes, undo, hints, timers, and mistake tracking while improving step by step. Career progress and best results are saved on your device. ONLINE DUEL Choose a difficulty and search for an opponent in the same difficulty queue. Take turns, complete the board, compare scores, and follow your rating. Active matches support reconnecting when the connection is interrupted. After a match, you can view the result and request a rematch when available. PROFILE AND ACCOUNT Create a display name, unique username, and permanent Friend ID for online features. You can begin as a guest and later protect your account with email. Account protection helps recover your Coin balance, rating, friends, and match history after reinstalling the game or changing devices. Account deletion is available inside the app. COINS AND PURCHASES Sudoku Duel uses virtual Coins for selected in-game actions and online match entry. Coins have no cash value. They cannot be transferred to another player, withdrawn, or exchanged for money or physical rewards. Optional one-time Coin packs and an optional ad-removal product are available through Google Play Billing. Prices are provided by Google Play in your local currency. OPTIONAL ADS Rewarded ads are optional. You can choose whether to watch an ad for a clearly stated in-game reward. Rewarded ads are not shown during active Sudoku play. Advertising privacy choices are available in Settings where required. PRIVACY AND CONTROL Optional notifications can remind you about Sudoku and online challenges. Settings include appearance options, high contrast, analytics sharing, crash-report sharing, ad privacy choices, and career progress controls. Online features require an internet connection. Features include five difficulty levels, offline Career progression, online Sudoku duels, notes, undo, hints, timers, mistake tracking, profiles, Friend IDs, rematches, daily rewards, wallet history, privacy controls, account protection, and in-app account deletion.