Development builds of Stockfish now use an efficiently updatable neural network (NNUE) for evaluating chess positions. The engine is now >80 ELO stronger than before! Read more and try it out: blog.stockfishchess.org/post/625828091…

Stockfish 12 is here! It includes NNUE (efficiently updatable neural network) out-of-the-box, and is significantly stronger than any of its predecessors. Read more: blog.stockfishchess.org/post/628172810…

The TCEC S19 Superfinal is about to kick off and yet again both Leela and Stockfish have qualified! The first game of the grand finale starts at 15:00 UTC on tcec-chess.com check it out!

We've refreshed our logo with a new, modern look to take us into 2020 and beyond. And if you look carefully at the new chessboard, you'll see our homage to NNUE! 😀

Engines play an important role in today's #chess. In the latest news in this field, Stockfish Stockfish Chess defeated Leela Chess Zero Leela Chess Zero in the TCEC (Top Chess Engine Championship) S19 Superfinal. The final score after 100 games is 54,5-45,5 (+18 -9 =73).

Statement on Fat Fritz 2 blog.stockfishchess.org/post/643239805…

Fat Fritz 2 is a rip-off, read our full article here: lichess.org/blog/YCvy7xMAA…

Stockfish 13 is here! It's 35 Elo stronger than Stockfish 12. Read all about it here: blog.stockfishchess.org/post/643570707…

Stockfish 14 is here! Release notes: stockfishchess.org/blog/2021/stoc…

Our lawsuit against ChessBase stockfishchess.org/blog/2021/our-…

Stockfish 14.1 is here! This release introduces a more advanced NNUE architecture and various search improvements. stockfishchess.org/blog/2021/stoc…

Stockfish 15 is here. It continues to push the boundaries of chess, providing unrivaled analysis and playing strength. stockfishchess.org/blog/2022/stoc…

Tord Romstad and Stéphane Nicolet vs. ChessBase GmbH will take place soon: stockfishchess.org/blog/2022/publ…

ChessBase GmbH and the Stockfish team reach an agreement and end their legal dispute stockfishchess.org/blog/2022/ches…

Stockfish 15.1 is here. It features NNUE architecture v5, stronger FRC performance, stronger standard chess performance, and a new evaluation convention. stockfishchess.org/blog/2022/stoc…

Stockfish 16 is here. Improved playing strength, and updated neural net architecture, improved table base win scores, and more: stockfishchess.org/blog/2023/stoc…

In case you missed it: Stockfish 16.1 is out! Details here: stockfishchess.org/blog/2024/stoc…

Stockfish 17 is released! Much stronger than Stockfish 16, improved engine lines, and better performance for multi-CPU machines. Learn more and download: stockfishchess.org/blog/2024/stoc…

Stockfish 17.1 is here with up to +20 Elo compared to SF 17, a new speedtest command to benchmark your system, support for >1024 threads, better build compatibility, and key bug fixes for tablebases and time management. stockfishchess.org/blog/2025/stoc…