Stockfish Online
Use Stockfish online for computer games, position review, and checking your own chess games.
Stockfish in the browser
Stockfish is one of the strongest chess engines. In the app you can use it for computer play and for post-game analysis.
The value comes from comparing your move with the engine suggestion. The goal is not to copy a line blindly, but to understand why the position required a different plan.
What to use Stockfish for?
Stockfish helps find tactical errors, poor exchanges, king safety problems, and positions where you lost an advantage. In short training, focus on the largest evaluation drops.
When the engine shows the best move, first ask what that move improves: piece activity, center control, king safety, a tactical threat, or an endgame plan.
- centipawn analysis
- best move
- principal variation
- mistake classification
Stockfish and learning
The engine is a tool, not a coach by itself. To improve, write down a simple lesson after analysis and check whether the same issue returns in later games.
For beginners the most important mistakes are large ones: hanging pieces, missed mate, no castling, and ignoring a direct opponent threat.