Strength is set via Stockfish's own Elo rating rather than a coarse "skill level" slider, so the difficulty actually scales the way you'd expect as you go up or down.
Play NowFeatures
- Real Elo-based difficulty, from beginner to grandmaster strength.
- No signup, no ads, works on desktop and mobile.
- Installable as an app for offline play.
- Review the finished game with free Stockfish analysis afterward.