Chess Helper
The best move, drawn on your board.
Chess Helper watches your chess game through screen sharing and draws Stockfish's top moves as arrows. It runs entirely in your browser, with nothing to install.
For Chrome and Edge on Windows and Linux.
How it works
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Share your game
Click Share screen and pick the window your game runs in. Chess Helper sees only what you share.
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Calibrate once
With the game in its starting position, Chess Helper finds the board and learns what your pieces look like. Next time it remembers them and starts by itself.
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Play
On your turn the best moves appear as arrows: green is best, then yellow and orange. When a checkmate is in reach you'll see Mate in x.
What it shows
- Top moves as arrows
- Up to five moves, each with its score and the line that follows.
- Mate in x
- Appears when you can force checkmate, and warns you when your opponent can.
- Opening presets
- Fianchetto, Scholar's mate, Hippopotamus, Stonewall and Leningrad / Bird. A preset move comes first whenever it's nearly as good as the best move.
- Stays on top
- Pop the helper out into a small window that floats above your game.
- Your side, automatically
- Moves are shown for the player at the bottom of the board, White or Black. It notices when a new game starts the other way round.
- Full Stockfish 19
- The complete engine, running in your browser. A lite engine is there for slower computers.
Good to know
Your screen stays on your computer
The picture is analysed inside your browser. This website only delivers the page; it never receives what you share.
It only looks
Chess Helper never clicks, types or moves pieces. You play every move yourself.
What you need
Chrome or Edge on Windows or Linux. The first start downloads the engine, about 100 MB; after that it loads from the browser's cache.
Fair play
Use it for your own games, practice and analysis. Engine help in rated games on chess sites is against their rules.