Master Chess Strategy with Plychess
Leverage professional-grade analysis and unblocked chess engine tools for free. Study openings like the Sicilian Defense or practice endgames with Stockfish 16.1.
Challenge the AI
Select 'Vs AI' mode to face Stockfish 16.1. Our WASM-powered engine runs locally in your browser for zero-latency responses. Perfect for blitz or rapid training.
Real-Time Evaluation
Watch the evaluation bar update instantly. Understand exactly when you have the advantage or if you've made a blunder in your opening prep.
Cloud Repertoire Master
Save complex positions to your private library. Build your winning opening prep with our cloud-synced D1 database tools for PRO users.
Professional Chess Analysis Unblocked
Plychess utilizes the latest WebAssembly (WASM) technology to bring the world's strongest engine, Stockfish 16.1, directly to your browser. This enables high-depth analysis and flawless AI play without any server-side delays or subscription paywalls.
Whether you're studying the Italian Game or training endgame motifs like Zugzwang, our platform ensures your analysis is private, fast, and always accessible on mobile or desktop.
- Industry-standard Stockfish 16.1 engine
- Mobile-friendly touch board controls
- Cloud-synced game history via D1
- Zero-cost local engine calculation
The Future of In-Browser Training
Privacy First • Performance Driven
Frequently Asked Questions
Is the Plychess AI as strong as Chess.com?
Yes. We use the open-source Stockfish 16.1 WASM core, the same engine that powers the world's leading platforms. Our 'Pro' difficulty calculates at Grandmaster strength.
Do I need to pay for engine analysis?
No. High-quality chess analysis is completely free on Plychess. The engine runs locally on your device, avoiding expensive server costs.
Can I save my games to review later?
Yes. By signing in with your Google account, you can save specific FEN positions or entire games to your cloud profile instantly.
Does Plychess work unblocked at school?
Yes. Since the engine runs entirely in your browser using JavaScript and WebAssembly, it works on most restricted networks where other chess sites might be blocked.