Stockfish 19
23 days ago
- Stockfish 19 is released, offering stronger play and more accurate analysis as a free download.
- It gains up to 44 Elo points over Stockfish 18 and wins over three times as many game pairs as it loses.
- Universal binaries simplify downloads by automatically selecting the optimal CPU code.
- New SFNNv16 network architecture improves strength while reducing binary size, and retired the secondary neural network.
- Training improvements include Quantization-Aware Training (QAT) and rescoring with a strong Leela net.
- Expanded platform support includes RISC-V, LoongArch, 1GB huge pages, WebAssembly, and improved shared-memory for Linux/macOS/BSD.
- Strict position validation now terminates the process with a CRITICAL ERROR on invalid commands.
- The project thanks contributors and encourages involvement via GitHub, Discord, and various codebases.