What Stockfish depth do we use on ChessRank?

We use Stockfish 19 in our application. The engine depth is fixed at 14 for every position of a game, which keeps the analysis fast on all devices. For about 10,000 common opening positions we use evaluations computed in advance, 99.45% of them at depth 40 or deeper, so those positions are answered instantly and at a much greater depth. In the endgame, Board Analysis and the optional “Always show engine arrows” switch in Game Analysis use Syzygy endgame tablebases. They never change the accuracy or the move labels of a game review. Many users wonder if increasing the depth is better. While higher depths see further ahead, the difference is negligible unless you are a very advanced player with a very high ELO (circa 2000-2400+). Depth 14 combined with precomputed opening evaluations at depth 40 and beyond remains a very strong tool even for highly advanced players. For the full picture, see How ChessRank analyzes your games.