# Chess Teaching Assistant Implementation Outline

1. Project Setup (Week 1)
   - Create Xcode project with SwiftUI
   - Set up development environment
   - Configure Metal and Vision framework dependencies
   - Establish basic project architecture
   - Implement permission handlers

2. Screenshot Module (Week 2-3)
   - Implement screen recording permissions flow
   - Build screenshot capture service
   - Add keyboard shortcut system
   - Create Firefox window detection
   - Test multi-monitor support

3. Board Recognition System (Week 3-4)
   - Develop Vision framework integration
   - Create ML model for piece recognition
   - Train model with various chess.com themes
   - Implement FEN conversion logic
   - Build position validation system

4. Stockfish Integration (Week 5-6)
   - Set up Stockfish ARM64 binary
   - Create async engine wrapper
   - Implement position analysis pipeline
   - Add move suggestion system
   - Build evaluation cache

5. Visual Overlay Foundation (Week 7-8)
   - Create Metal rendering pipeline
   - Build transparent window system
   - Implement basic shape rendering
   - Add coordinate transformation system
   - Test overlay performance

6. Move Visualization (Week 9-10)
   - Develop arrow rendering system
   - Add square highlighting
   - Implement attack pattern visualization
   - Create defensive move indicators
   - Build threat visualization system

7. Performance Optimization (Week 11)
   - Implement Metal shaders
   - Optimize rendering pipeline
   - Add caching mechanisms
   - Reduce latency in analysis pipeline
   - Benchmark system performance

8. Testing & Refinement (Week 12)
   - Create automated test suite
   - Implement UI tests
   - Add performance tests
   - Security audit
   - Bug fixes and optimizations

9. Polish & Distribution (Week 13)
   - UI/UX refinement
   - Add user settings
   - Implement analytics
   - Create documentation
   - TestFlight preparation

10. Launch Preparation (Week 14)
    - Final security review
    - Performance validation
    - Documentation completion
    - TestFlight distribution
    - User feedback collection setup

Key Milestones:
✓ Week 1: Working project structure
✓ Week 4: Functional board recognition
✓ Week 6: Working Stockfish analysis
✓ Week 8: Basic visual overlay system
✓ Week 10: Complete visualization system
✓ Week 12: Optimized performance
✓ Week 14: Ready for distribution

Testing Checkpoints:
- After each module completion
- Weekly performance benchmarks
- Bi-weekly security reviews
- Regular UX testing sessions

Development Priorities:
1. Core functionality
2. Performance optimization
3. User experience
4. Security compliance
5. Polish and refinement