# Dueloku: Live Sudoku Duels — Real-time 1v1 sudoku races > Competitive two-player Sudoku game with a unique rating system. (iPhone/iPad app by Clinton Sweetnam.) - Source: https://appshunter.io/ios/app/dueloku-live-sudoku-duels/id1517689580 (this page in markdown: same URL + `.md`) - Developer: [Clinton Sweetnam](https://appshunter.io/developer/6779420061) - Category: Games, Board, Puzzle - Price: Free - Rating: 4.40/5 from 22 App Store ratings · 8 written reviews indexed - Age rating: 4+ - Requires: iOS 15.0 · 17 MB - Languages: American English - Released: 2020-07-06 - Data updated: 2026-09-04 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/dueloku-live-sudoku-duels/id1517689580/reviews.md ## What is Dueloku? 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. ## Key features - Real-time competitive gameplay - Unique player rating system - Play with friends - Practice mode - Multiple color schemes ## Recent user reviews (8 of 8) All indexed reviews: https://appshunter.io/ios/app/dueloku-live-sudoku-duels/id1517689580/reviews.md ### 5/5 — Having trouble connecting *2025-01-12* I absolutely love this app! The last couple of days it will not allow me to play because it will not “connect” help! Please advise. ### 1/5 — Waste of Time *2024-12-31* 1 star because the registration was simple but I couldn’t play any games with a friend or for practice. I reinstalled the app and still didn’t work. ### 5/5 — love this app but has gone down? *2023-07-06* This app is so much fun but it hasnt worked for a few weeks now. it won’t connect through to any game. Please fix this because I miss playing with my friends! and it’s a great game! ### 5/5 — leaderboard please *2023-02-04* I agree with “last pringle”… A leaderboard would be good. BTW, as “pringle” wanted to know, 99.9% in hard mode was just achieved with a record of 385-0 and average score of 40. ### 5/5 — Good game, with a few quality of life improvements it would be great *2022-08-22* The main thing I would ask to add is a place to view the leaderboards. I got this game a week ago and I’m currently 142-0 in Hard Rated games. My rating is 4149 and I'm in the 99.5% percentile. It frustrates me greatly that I can’t see the current leaderboards to see who is above me. I win 20 games straight just to go up 0.1%, but I have no idea how many more games I will have to win to be the best. ### 3/5 — lags sometimes *2022-02-25* sometimes the game freezes and you cant put in any numbers ### 5/5 — this game gets me really fired up *2021-10-09* In a good way! Love playing w my friends and my girl especially, I didn’t think sudoku could be this fun. Small issue we notice time to time, there’s moments during the start or the match or abruptly in the middle where the connection is lost and the board is frozen. No issue personally since I play with friends and we just restart in a few seconds but I can see ranked matches being an issue ### 5/5 — Great game, couple of glitches *2021-01-05* Love this game! Would have a perfect unbeaten score right now if the app hadn’t frozen/lagged during a game and prevented me from entering numbers. Otherwise perfect! ## Frequently asked questions about Dueloku ### What is Sutwoku? Sutwoku is a two-player Sudoku game where players race to complete the same puzzle simultaneously. It features a unique rating system to rank players based on their performance in rated matches. ### How does Sutwoku's rating system work? Sutwoku uses a rating system that increases your score when you win rated games and decreases it when you lose. The system aims to pair you with players of similar skill levels. ### Can I play Sutwoku offline? The description does not explicitly state offline play capabilities. However, the core gameplay involves competing against another player, suggesting an online connection is likely required for rated and friend matches. ### Does Sutwoku have ads? No, Sutwoku does not contain advertisements. The app is completely free to download and play without any ad interruptions. ### What devices does Sutwoku support? Sutwoku is available on iPhone and iPod devices. The app is designed for iOS mobile platforms. ### What is the age rating for Sutwoku? Sutwoku has an age rating of 4+. This indicates it is suitable for young children and does not contain content inappropriate for this age group. ### How often is Sutwoku updated? The latest version of Sutwoku is 1.2.3, last updated on July 6, 2021. Future updates are planned to improve the ranking system and add new puzzle difficulties and multiplayer modes. ### What are the different game modes in Sutwoku? Sutwoku offers three main modes: 'Play With A Friend' for casual games, 'Play Practice Game' to train without affecting your rating, and 'Play A Rated Game' for competitive matches against similarly rated opponents. ## Version history (last 5 releases) ### 2.3.0 — 2026-09-02 Minor UI changes ### 2.2.1 — 2026-07-30 Minor Bug Fixes ### 2.2.0 — 2026-07-29 Adding Push Notifications for Streaks and Daily Challenges ### 2.1.1 — 2026-07-08 Adding User Streaks ### 2.0.11 — 2026-06-25 Adding a new tutorial ## Apps similar to Dueloku | App | Rating | Price | Category | | --- | --- | --- | --- | | [Paint Box & Classic Cash Match](https://appshunter.io/ios/app/paint-box-and-classic-cash-match/id1440960219) | 4.6 (39) | Free | Games | | [Number Drop: X2 Blocks Merge](https://appshunter.io/ios/app/number-drop-x2-blocks-merge/id1523026410) | 3.4 (5) | Free | Games | | [Dice With Friends - Yatzy King](https://appshunter.io/ios/app/dice-with-friends-yatzy-king/id1466075683) | 2.4 (5) | Free | Games | | [Gaps Solitaire: Win Cash](https://appshunter.io/ios/app/gaps-solitaire-win-cash/id1612646788) | 4.9 (9) | Free | Games | | [Zone 21 - Fast Math Solitaire](https://appshunter.io/ios/app/zone-21-fast-math-solitaire/id1484296990) | 4.8 (23) | Free | Games | | [Phase Rummy: Win Real Cash](https://appshunter.io/ios/app/phase-rummy-win-real-cash/id6446157051) | 4.2 (38) | Free | Games | --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-04.*