From the Stockfish docs at https://official-stockfish.github.io/docs/stockfish-wiki/Stockfish-FAQ.html#the-elo-rating-of-stockfish https://official-stockfish.gi

From the Stockfish docs at https://official-stockfish.github.io/docs/stockfish-wiki/Stockfish-FAQ.html#the-elo-rating-of-stockfish https://official-stockfish.github.io/docs/stockfish-wiki/Sto.... > Rating Stockfish against a human scale, such as FIDE Elo, has become virtually impossible. The gap in strength is so large that a human player cannot secure the necessary draws or wins for an accurate Elo measurement. [1]: https://computerchess.org.uk/ccrl/4040/ https://computerchess.org.uk/ccrl/4040/