Happy Sudoku-AI Hints
AI Sudoku Easy Start Fast
Free · Designed for iPad
Enjoy free access to classic and killer Sudoku puzzles, along with more detailed data statistics that clearly record your problem-solving strategies and progress.
Happy Sudoku is an intelligent Sudoku game developed with Flutter, combining AI technology with innovative level design. The game features a dynamic infinite-scrolling level selection system, providing players with a unique gaming experience.
#### Core Features
1. **Innovative Level System**
* **Dynamic Level Path**: Programmatically generated infinite scrolling curve path for level display
* **Stage-based Layout**: Levels divided into multiple stages, each containing a fixed number of levels
* **Smart Loading**: Lazy loading technology for optimized performance and memory usage
* **Smooth Experience**: Intelligent scroll monitoring and preloading mechanism
* **Visual Feedback**: Current level highlighting, clear stage separation, and special character display
2. **Smart Game Features**
* **AI Hint System**: Intelligent analysis of solving strategies
* **Note Mode**: Support for candidate number recording in cells
* **Highlight Hints**: Highlight same numbers for assistance
* **Error Detection**: Real-time input error detection
* **Undo Function**: Support for undoing previous moves
3. **Game Interface**
* **Professional Sudoku Board**: 9x9 standard grid with clear 3x3 sub-grid division
* **Smart Input System**: Bottom number pad supporting number input and note mode
* **Visual Feedback**: Selected cell highlighting with related cells (row, column, box) highlighting
* **Status Display**: Timer, error counter (heart display), game progress
* **Theme Switching**: Multiple preset themes (green, blue, sakura, red, deep purple)
4. **Game Mechanics**
* **Difficulty Levels**: From beginner to master level
* **Progress Saving**: Independent save for each level
* **Achievement System**: Record solving time and success rate
* **Error Limit**: Maximum 3 errors allowed
* **Haptic Feedback**: Operation vibration feedback
5. **Personalization**
* **Theme Customization**: Multiple preset themes with real-time switching
* **Haptic Settings**: Customizable vibration feedback
* **Interface Optimization**: Dark mode support, customizable font size
* **Operation Habits**: Customizable gestures and operation methods
* **Multilingual**: Support for 18 languages
6. **Technical Features**
* **Performance Optimization**: Smooth gaming experience, low power consumption
* **Offline Mode**: Full offline support
* **Auto-save**: Real-time progress saving
* **Data Security**: Secure user data storage
* **Continuous Updates**: Regular feature optimization and content updates
#### Usage Scenarios
1. **Daily Entertainment**
* **Commute Time**: Solve puzzles during travel
* **Relaxation**: Unwind after work or study
* **Waiting Time**: Pass time while waiting
* **Bedtime Relaxation**: Light game for better sleep
* **Family Entertainment**: Suitable for all ages
2. **Learning and Training**
* **Mathematical Thinking**: Develop logical reasoning
* **Concentration**: Improve focus and attention
* **Memory**: Exercise memory through puzzle solving
* **Thinking Training**: Develop systematic thinking
* **Stress Relief**: Relax through puzzle solving
3. **Professional Training**
* **Sudoku Competition**: Preparation for competitions
* **Brain Training**: Professional brain training tool
* **Solving Techniques**: Learn advanced solving methods
* **Speed Training**: Improve solving speed
* **Difficulty Challenge**: Challenge high-difficulty puzzles
Ratings & Reviews
- General
- UI Update
- Added Daily Sudoku
- App Entry Change
- Favorites Function
- Row, Column, and Sudoku Colors Follow Theme Color
- Number Color Settings (Custom Number Colors)
- Game Color Settings (Custom Board Colors)
- App Statistics
- Range Statistics [Year, Month, Week]
- Each Game Record: Time Spent, Hints Count, Recalls, Total Duration, Thinking Time, Longest Thinking Time, Number of Clues
- Total Statistics, Game Overview, Time Spent Analysis, Achievement Records, Game Performance, Auxiliary Usage, Difficulty Distribution
- Standard Sudoku
- Added Quick Swipe Input
- Added [Multi-Select/Single Selection] Functionality in Notes Mode
- Added [Default/Add/Subtract] Functionality in Notes Mode
- Same Number Highlighting is Now the Default Functionality
- Killer Sudoku (500 Levels Built-in for Each Difficulty)
- Solver (Grid Calculation + Component Calculation)
- Notes (Centered + 3x3 Grid)
- Button Behavior (Default/Add/Subtract)
- Single/Multiple Selection (Click + Swipe to Select)
- Highlighting of identical numbers in [Single/Multiple Selection] mode
The developer, 兆扬 张, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- 兆扬 张
- Size
- 275.3 MB
- Category
- Strategy
- Compatibility
Requires iOS 13.0 or later.
- iPhone
Requires iOS 13.0 or later. - iPad
Requires iPadOS 13.0 or later. - iPod touch
Requires iOS 13.0 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- Languages
English and 16 more
- English, Arabic, French, German, Indonesian, Italian, Japanese, Korean, Malay, Portuguese, Russian, Simplified Chinese, Spanish, Thai, Traditional Chinese, Turkish, Vietnamese
- Age Rating
4+
- 4+
- Copyright
- © 2025 张兆扬