For chess.com and lichess
See the position the way the engine does.
Chess Wizard runs Stockfish on your own machine and shows you the five best continuations, ranked. Then it reviews every game you finish and tells you, in a sentence, what is actually costing you rating.
Free forever for live analysis. No card to start.
Candidate moves
- 1Nxe5+1.4
- 2Bxf7++0.9
- 3O-O+0.4
- 4d4+0.1
- 5h3-0.2
Depth 15 · local engine
What you get
Five moves, ranked
One MultiPV search returns the engine’s top five candidates, colour-coded by how much they cost you. Not just "the best move" — the shape of the position.
Runs on your machine
Stockfish 18 compiled to WebAssembly, bundled with the extension. No API call, no queue, no rate limit, no analysis leaving your computer.
Every game, reviewed
Finished games are swept move by move. Accuracy, classifications, eval graph, and the three moments the game actually turned on.
Coaching, not just charts
"You blunder three times more often with under 30 seconds on the clock." The sentence is the product. The chart is decoration.
The engine is free. The coaching is the product.
Live analysis costs us nothing — it runs on your CPU, and it always will. What we charge for is the part that takes a server: full post-game review, unlimited history, opening repertoire tracking, and the weakness reports that come out of them.