Note: Stockfish is a command line program. You may want to use it in your own chess GUI.

Feb 24, 2024 · In our testing against its predecessor, Stockfish 16.1 shows a notable improvement in performance, with an Elo gain of up to 27 points and winning over 2 times more game pairs than it loses. Update highlights

Jun 30, 2023 · 2024-09-06: Stockfish 17; 2024-02-24: Stockfish 16.1; 2023-06-30: Stockfish 16; Strong. One of the strongest chess engines in the world. Winner of the Top Chess Engine Championship and Chess.com Computer Chess Championship, and consistently ranks highly on rating lists. View competition results.

Jun 30, 2023 · This updated version of Stockfish introduces several enhancements, including an upgraded neural net architecture (SFNNv6), improved implementation, and refined parameterization.

Feb 24, 2024 · Stockfish 16. A new major release of Stockfish is now available at stockfishchess.org/download. Quality of chess play. Stockfish continues to demonstrate its ability to discover superior moves with remarkable speed. In self-play against Stockfish 15, this new release gains up to 50 Elo and wins… Read more

Sep 6, 2024 · In tests against Stockfish 16, this release brings an Elo gain of up to 46 points and wins up to 4.5 times more game pairs than it loses. In practice, high-quality moves are now found in less time, with a user upgrading from Stockfish 14 being able to analyze games at least 6 times faster with Stockfish 17 while maintaining roughly the same ...

2023-06-30: Stockfish 16 Strong Stockfish has won the Top Chess Engine Championship and Chess.com Computer Chess Championship, and consistently ranks highly on rating lists.

Aug 7, 2020 · As of August 6, the efficiently updatable neural network (NNUE) evaluation has landed in the Stockfish repo! What is NNUE? Both the NNUE and the classical evaluations are available, and can be used to assign a value to a position that is later used in alpha-beta (PVS) search to find the best move.

Jan 15, 2020 · This version 11 of Stockfish is 50 Elo stronger than the last version, and 150 Elo stronger than the version which famously lost a match to AlphaZero two years ago.

May 4, 2011 · In this release a new skill level facility has been introduced. Stockfish can be set to skill level 20 (default) to play at maximum strength or, through setting the “Skill Level” UCI option, can be lowered until 0 when should be beatable even by weak players.