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Analysis board — Stockfish 19, multiple lines, PGN and FEN

Analyse any position with Stockfish 19: up to five engine lines, arrows, variations, opening names, and PGN/FEN import and export. Free and unlimited.

Updated 28 October 2026 · 1 min read

The Analysis board is a free Stockfish 19 workbench.

Features

Engine lines: up to five best lines with evaluations.
Evaluation bar and best-move arrows.
Variations: try moves, branch off, and come back to the main line.
Opening names for thousands of named openings.
Import: paste a PGN (a whole game) or a FEN (one position).
Export: copy the PGN or FEN to share or save.
Draw your own arrows and circles on the board.

Tips

Use the arrow keys to step through moves and F to flip the board.
Open any game from My games in the analysis board to explore alternatives.
Stockfish runs in your browser; on modern browsers it uses several threads for faster analysis.

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