Play Free Chess vs Grandmaster AI (Stockfish 16)
Challenge our grandmaster Stockfish 16 and Gemini AI bots with real-time candidate move analysis and opening hints.
Play free chess vs Stockfish 16 and Gemini AI bots online! 5 difficulty tiers from Beginner (800) to Grandmaster (2800) with move hints and evaluation.
Key Features
- Official WebAssembly Stockfish 16 engine running client-side at maximum speed
- 5 calibrated difficulty tiers from Novice (800 Elo) to Super Grandmaster (2800 Elo)
- Real-time evaluation bar, candidate move hints, and blunder warnings
- Comprehensive post-match Grandmaster Review with accuracy rating
Rules & Strategy Guide
Playing against an engine is the ultimate training tool for calculating variations and punishing tactical oversights.
- Play as White or Black, or select Random to practice both sides.
- Takebacks and hints are available in practice mode to accelerate learning.
- Evaluation bar updates in real time based on Stockfish centipawn depth.
Frequently Asked Questions
What chess engine powers the AI on xGames?
Our AI mode is powered by official WebAssembly-compiled Stockfish 16 alongside advanced Google Gemini AI reasoning, providing depth-evaluated candidate moves, mistake detection, and grandmaster-level positional analysis directly in your browser.
Can beginners play against the AI without getting crushed?
Yes! We provide 5 adaptive difficulty levels ranging from Casual Novice (800 Elo) and Club Player (1400 Elo) up to Candidate Master (2000 Elo) and Super Grandmaster (2800 Elo), along with real-time arrow hints and takebacks.
Can I analyze my moves during the game against the AI?
Yes, the AI mode features live evaluation bars, blunder detection, opening name classification, and a post-game Grandmaster Review Report breaking down accuracy percentages and critical turning points.
Explore other chess modes on xGames:
Tournaments |
Play vs AI |
Blitz Chess |
Bullet Chess |
Rapid Chess |
Tactics Puzzles |
Endgame Studio |
Chess960