scramblenumbergame

1. **Two Game Modes**

1. Classic sliding tile mode (only tiles adjacent to empty space can move)

2. Swap mode (any two adjacent tiles can be swapped)

2. **Progressive Difficulty**

1. 100 levels with increasing complexity

2. Grid sizes that grow with difficulty:

1. Levels 1-20: 3×3 grid

2. Levels 21-50: 4×4 grid

3. Levels 51-80: 5×5 grid

4. Levels 81-100: 6×6 grid

3. **Puzzle Generation**

1. Algorithm that ensures all puzzles are solvable

2. Increasing shuffle moves based on level (22-370 moves)

3. Random but deterministic generation for daily challenges

4. **Game Mechanics**

1. Level unlocking system (complete previous to unlock next)

2. Win condition detection

3. Move counter

4. Timer for gameplay duration

## Special Features

5. **Daily Challenge**

1. Unique daily puzzle that resets each day

2. Uses date as random seed for consistent generation

3. Completion tracking to prevent replaying same day

4. Fixed difficulty (5×5 grid)

6. **Progress Tracking**

1. Persistent level progress using SharedPreferences

2. Highest unlocked level tracking

3. Daily challenge completion status

## UI/UX Features

7. **Theme Support**

1. Dark mode

2. Light mode

3. System theme option

4. Theme toggle in app bar and settings

8. **Responsive Design**

1. Adapts to different screen sizes

2. Proportional tile sizing based on screen width

3. Consistent layout across devices

9. **Animations**

1. Smooth tile animations with scale effects

2. Transition animations between screens

10. **Game Statistics**

1. Move counter display

2. Timer display in minutes:seconds format

3. Game completion statistics

11. **User Interface Components**

1. Home screen with main menu

2. Level selection grid with visual unlocking indicators

3. Game screen with puzzle board

4. Settings screen

5. How to play instructions

6. Game completion celebration