Chess Analyzer

Stockfish 18, running entirely in your browser
starting…
A username lists your recent games. A game link opens that one game — any lichess.org/… link, or a chess.com link to a game of yours (Chess.com only serves games by player, so search your username once first).
or paste a game
Crop the screenshot to just the 8×8 board (no app window or coordinates) — a Lichess/Chess.com board reads best. It's read as best we can, then you confirm and fix on an editable board.

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Black
+0.20
White
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Starting position
Use ← → keys or click a move.
Move classification

Evaluations by Stockfish 18 (lite) from White's point of view (+ favors White). Accuracy and labels are engine-derived estimates. Brilliant = a sound sacrifice; Great = a critical only-move. Nothing leaves your device — the engine runs locally via WebAssembly.

Moves
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Stockfish ·