Stockfish (@stockfishchess.org)

Stockfish 18 is here! Much stronger, with next-generation threat-input network, shared memory for high-concurrency analysis, a refined search algorithm, and much more! stockfishchess.org/blog/2026/st...

loading . . .

Stockfish 18 Stockfish is a free, open-source, and cross-platform chess engine, trusted by grandmasters and leading chess platforms worldwide. https://stockfishchess.org/blog/2026/stockfish-18/