27 stable releases
|2.6.7||Dec 4, 2022|
|2.6.6||Sep 25, 2022|
|2.6.3||May 26, 2022|
|2.5.1||Nov 3, 2021|
#13 in HTTP client
96 downloads per month
fishnet: distributed Stockfish analysis for lichess.org
Request your personal fishnet key: https://lichess.org/get-fishnet
Install and run the fishnet client.
Download standalone binary
Select the binary for your platform from the latest release and run it.
# After download: mv fishnet-v2.6.5-x86_64-unknown-linux-musl fishnet chmod +x fishnet ./fishnet --auto-update
./fishnet configure # Rerun config dialog ./fishnet systemd --auto-update # Print a .service file ./fishnet --help # List commands and options
Other installation methods: From source, AUR, Docker, Kubernetes
Pick an update strategy.
--auto-updateas recommended above.
Subscribe to release announcements
With a GitHub account, you can watch this repository (can be set to release announcements only). See the top right corner on this page.
Watch @arex explain fishnet.
Which engine does fishnet use?
fishnet uses Stockfish (hence the name) and Fairy-Stockfish for chess variants.
What are the requirements?
|Available for||64-bit Intel and AMD||ARMv8 / Silicon|
||build from source|
|FreeBSD||build from source|
- Needs Linux or an operating system from around 2019 or later
- Will max out the configured number of CPU cores
- Uses about 64 MiB RAM per CPU core
- A small amount of disk space
- Low-bandwidth network communication with Lichess servers (only outgoing HTTP requests, so probably no firewall configuration required, IPv4 not required)
Is my CPU fast enough?
Almost all processors will be able to meet the requirement of ~2 meganodes in 6 seconds. Clients on the faster end will automatically be assigned analysis jobs that have humans waiting for the result (the user queue, as opposed to the system queue for slower clients).
Why does my client remain idle?
Your client may remain idle if fishnet estimates that another client would be able to complete the next batch more quickly, or if the client has been configured to join the queue only if a backlog is building up. By standing by, you're still contributing to the potential maximum throughput of the fishnet network.
What happens if I stop my client?
Feel free to turn your client on and off at any time. By default, the client will try to finish any batches it has already started. On immediate shutdown, the client tries to inform Lichess that batches should be reassigned. If even that fails, Lichess will reassign the batches after a timeout.
Will fishnet use my GPU?
No, Stockfish is a classical alpha-beta engine. The neural network evaluation of Stockfish NNUE works efficiently on CPUs.
Is fishnet secure?
To the best of our knowledge. All engine input is carefully validated.
Note that you implicitly trust the authors and the GitHub and Amazon S3
infrastructure when running with
--auto-update. You can mitigate this by
running fishnet as an unprivileged user.
cargo-crev is used to review the
trustworthiness of dependencies.
is used to embed dependency meta data into binaries.
Is there a leaderboard of contributors?
No, sorry, not publicly. It would incentivize gaming the metrics.
Can I autoscale fishnet in the cloud?
There is currently no ready-made solution, but an API for monitoring the job queue status is provided.
See protocol.md for details.
SSLKEYLOGFILE for inspection at runtime.
fishnet is licensed under the GPLv3+. See LICENSE.txt or
for the full license text.