# Tsuidoku — Sudoku Just Evolved

> Sudoku Just Evolved (iPhone/iPad app by Jordan MAIRE.)

- Source: https://appshunter.io/ios/app/tsuidoku/id6773794537 (this page in markdown: same URL + `.md`)
- Developer: [Jordan MAIRE](https://appshunter.io/developer/6773794539)
- Category: Games, Entertainment, Puzzle
- Price: Free
- Age rating: 12+
- Requires: iOS 15.0 · 89 MB
- Languages: American English, Japanese, Chinese (Simplified, China), Chinese (Traditional, Taiwan)
- Released: 2026-06-21
- Data updated: 2026-08-31
- User reviews in markdown: https://appshunter.io/ios/app/tsuidoku/id6773794537/reviews.md

## What is Tsuidoku?

Tsuidoku is a logic puzzle for players who have mastered classic Sudoku. The 9×9 grid remains, but a fourth constraint changes everything.

THE 4 RULES
Each row, column, and 3×3 region must contain the numbers 1 through 9 AND the 9 colors. The twist: each color must also contain all 9 numbers. The result: 81 unique number-color pairs. Place a "Red 5," and it cannot appear anywhere else.

DAILY CHALLENGE
A unique global grid every day—the same one for the whole world. Maintain your streak, earn monthly medals, and check the daily rankings.

MASTER THE TECHNIQUES
- Rainbow Technique: Track a single number across all nine colors.
- Color Wheel: Track a single color across all nine numbers.
Tap a cell to cycle through highlight modes and see the logic light up.

PLAY TOGETHER
Add friends, compare stats, and chat directly within the app. A detailed profile tracks your records across every difficulty level.

Think you’ve mastered Sudoku? The real game starts here. Download now and create your first 81 perfect pairs.


## Version history (last 5 releases)

### 1.2.18 — 2026-08-30

KODOKU. A mode opens up for players who reach the Tsuidoku league. Five levels, and on each one the clues draw a shape: star, heart, cross, eye, spiral.

The grid, and nothing else.

Settings of its own, a silhouette for every level, and the grid identifier. Interface polish.

### 1.2.17 — 2026-08-26

• The Daily Challenge results screen shows the podium or the players around you, with your time and rank on one ticket
• The Daily Challenge tab starts with Play, then your result and the World / Friends leaderboard
• Placing a digit with its color removes that pair from notes across the whole grid
• A hint tidies your notes just like a placed value
• Daily challenge cards in chats show both times

### 1.2.16 — 2026-08-25

• The Daily Challenge shows your rank, the gap to the player ahead and your seven-day streak
• New Friends tab in the daily leaderboard
• Sharing Tsuidoku now connects you to whoever installs it
• Friend search fixed: accents, short names, every script
• Swipe the keypad to swap digits and colors
• Notes clear themselves when you place the value

### 1.2.15 — 2026-08-21

A new opening: a small 4×4 grid introduces the fourth rule before your first game.
Faster startup and a lighter app.
The daily challenge now tells you what it earns.
Refined keypad relief and smoother profile photo uploads.
Thanks for playing.

### 1.2.13 — 2026-08-19

Group chats: a dedicated page with mute, co-admins, image gallery, search and pinned message.
Friend invites and challenges sent straight from a conversation.
Daily Puzzle reminder at the time you choose.
Difficulties unlock as you win, and your progress without an account is kept when you create your account.
New video section on the home page, expanded Rules page.
Typography and country names revised in Asian languages.

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*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 2026-08-31.*