Analyze any position
Build a board from scratch or import standard FEN and PGN notation.
Set up any position, paste a FEN or PGN, and find the best move with Stockfish. Analysis runs privately in your browser, with no account required.
A computer evaluation only matters when you understand the idea behind it. Chess Scenarios lets you test candidate moves, follow the engine line, undo variations, flip the board, and save the position so you can return to it later.
Build a board from scratch or import standard FEN and PGN notation.
Run Stockfish 19 at multiple depths and inspect its principal variation.
Play both sides, branch into new ideas, and save useful discoveries.