CASE STUDY
Chess4Play
Real-Time Multiplayer 3D Chess Game with 4-Player Simultaneous Gameplay
70+
Files Created
7,000+
Lines of Code
<50ms
Move Latency
60 FPS
3D Rendering
The Challenge
Traditional chess is limited to 2 players. What if we could bring 4 players together on a single board, add stunning 3D graphics, enable real-time multiplayer, and make it accessible through social login?
That's Chess4Play—a complete full-stack multiplayer game built from scratch with zero compromises on performance, security, or user experience.
Technology Stack
Frontend
Backend
Key Features
4-Player Chess
Custom ruleset with elimination mechanics and turn-based rotation
3D Graphics
60 FPS rendering with Three.js, PBR materials, and studio lighting
Real-Time Multiplayer
WebSocket-based synchronization with <50ms latency
Passwordless Login
Google, Twitter, Email, and Wallet authentication via Privy
AI Opponents
Minimax algorithm with 3 difficulty levels (Easy/Medium/Hard)
Live Chat
Real-time messaging with XSS protection and rate limiting
Architecture Deep Dive
Built on a server-authoritative architecture to prevent cheating and ensure fair gameplay.
Real-Time Game Flow
Security Architecture
- ✓Server-side move validation (prevent cheating)
- ✓JWT authentication for all connections
- ✓Rate limiting (moves, chat, API calls)
- ✓Input sanitization (XSS protection)
- ✓HTTPS/WSS only in production
- ✓SQL injection prevention (parameterized queries)
Challenges Overcome
4-Player Chess Rules
Problem: No established ruleset for 4-player chess
Solution: Designed custom elimination mechanics, tested with friends, iterated on balance
Coordinate Transformation
Problem: Each player needs different board perspective
Solution: Built mathematical transformation system converting between player perspective and absolute coordinates
WebSocket Stability
Problem: Cloudflare closes WebSocket after 100 seconds
Solution: Implemented ping/pong heartbeat every 25 seconds with 60s timeout
State Synchronization
Problem: Race conditions when 2+ players move simultaneously
Solution: Server-side queue system with atomic operations on Redis
3D Performance on Mobile
Problem: High poly count caused frame drops
Solution: LOD system + geometry instancing + optional 2D mode
Project Gallery
Impact & Results
70+
Files
7,000+
Lines of Code
<50ms
Latency
60 FPS
3D Rendering
Chess4Play demonstrates the full spectrum of modern web development: from 3D graphics rendering to real-time multiplayer synchronization, from passwordless authentication to production deployment. Built with zero compromises on performance, security, or user experience.
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