Stockfish
A free and strong UCI chess engine (by official-stockfish)
nnue-pytorch
Stockfish NNUE (Chess evaluation) trainer in Pytorch (by official-stockfish)
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| Stockfish | nnue-pytorch | |
|---|---|---|
| 150 | 14 | |
| 10,433 | 279 | |
| 2.7% | 3.2% | |
| 9.6 | 6.9 | |
| 6 days ago | 19 days ago | |
| C++ | C++ | |
| GNU General Public License v3.0 only | GNU General Public License v3.0 only |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stockfish
Posts with mentions or reviews of Stockfish.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2024-03-25.
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Manipulating the Internal World Model of a Chess Playing Language Model
The Stockfish program can be set to play at strength level 0-20. Estimates of the levels' Elo is provided here: https://github.com/official-stockfish/Stockfish/commit/a08b8...
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A chess terminal user interface implementation
- and handicapped Stockfish (https://stockfishchess.org).
The whole thing is at https://github.com/magv/bchess, and can be installed with just 'pip install bchess'.
- What could I contribute to chess as a developer?
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posttest-cli beta testers wanted
This was the result searching for all the 35 stockfish benchmark positions to depth 6.
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How many positions can the top GMs analyze per second? In engine terms what is the highest nps for humans?
Stockfish doesn't have a classical evaluation anymore. And before this, most of the time (around 90%), NNUE was used to evaluate.
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Stockfish 16 Released +47 Elo gain over Stockfish 15 (Single threaded, UHO)
If you use ChessBase on a MacBook through Parallels, there's an issue where people have posted Apple Silicon compiles for Windows: https://github.com/official-stockfish/Stockfish/issues/4241
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Stockfish 16 is ready!
Progress can be found here https://github.com/official-stockfish/Stockfish/wiki/Regression-Tests At 1 thread it has gained +18.3 elo on a balanced book, and +47.03 on UHO (unbalanced) book as well as +39.4 elo for FRC and +65.56 for DFRC. At 8 threads it has gained +14.33 elo on a balanced book and +49.46 on UHO (unbalanced book). Also testing was done on 8 threads with 180+1.8 (this is considered very long time control for fishtest standards) and progress was +9.45 on balanced book and +49.65 on UHO.
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Stockfish 16 is ready
Downloads are available temporarily here https://github.com/official-stockfish/Stockfish/releases/tag/stockfish-dev-20230622-a49b3ba7
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Is there an engine stronger than Stockfish 15.1?
The strongest version of Stockfish is the latest development version of Stockfish
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How to integrate Stockfish chess engine into React Native app (for both Android and iOS)
I am trying to implement Stockfish (a popular chess engine) into my React Native app.
nnue-pytorch
Posts with mentions or reviews of nnue-pytorch.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-05-22.
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Are Super-GMs far more cautious in opening choice than they were even ten years ago?
There's extremely detailed information on how Stockfish's neural network evaluation works, but none of this will tell you the why of why the engines' assessment changed: https://github.com/glinscott/nnue-pytorch/blob/master/docs/nnue.md
- Why are people using bitboards for chess input?
- Resources for learning and implementing a NNUE for a chess engine?
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I am the first author of Stockfish. Ask me anything.
If you want a readable explanation of all the details, this document is phenomenal.
- What's a simple engine to modify? (Preferably in Python)
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"RL Fine-Tuning: Scalable Online Planning via Reinforcement Learning Fine-Tuning", Fickinger et al 2021 {FB}
Getting SOTA in chess would be earth-shattering, especially since Stockfish has now adopted very light-weight NNs (called NNUE) and has doubled down on alpha-beta search, regaining the upper hand against A0 style programs.
- Where would an absolute beginner to neural networks start when trying to learn how to build a NNUE evaluation function?
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Stockfish 14 Released
Stockfish NNUE is deep network. You can find out more about it's architecture and internal working here:
https://github.com/glinscott/nnue-pytorch/blob/master/docs/n...
It's pretty interesting read.
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Official release version of Stockfish 14
[0] https://tests.stockfishchess.org/tests/view/60dae5363beab81350aca077 [1] https://nextchessmove.com/dev-builds [2] https://stockfishchess.org/blog/2021/stockfish-13/ [3] https://lczero.org/blog/2021/06/the-importance-of-open-data/ [4] https://github.com/official-stockfish/Stockfish/commit/e8d64af1 [5] https://github.com/glinscott/nnue-pytorch/ [6] https://stockfishchess.org/get-involved/
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How do Neural Networks work?
https://github.com/glinscott/nnue-pytorch/blob/master/docs/nnue.md There is some info there.
What are some alternatives?
When comparing Stockfish and nnue-pytorch you can also consider the following projects:
nibbler - Chess analysis GUI for UCI engines, with extra features for Leela (Lc0) in particular.
Ceres - Ceres - an MCTS chess engine for research and recreation
lc0 - The rewritten engine, originally for tensorflow. Now all other backends have been ported here.
KataGo - GTP engine and self-play learning in Go
fishtest - The Stockfish testing framework
irwin - irwin - the protector of lichess from all chess players villainous
maia-chess - Maia is a human-like neural network chess engine trained on millions of human games.
Koivisto - UCI Chess engine
Ciphey - ⚡ Automatically decrypt encryptions without knowing the key or cipher, decode encodings, and crack hashes ⚡
Stockfish - UCI chess engine
chessx - Sources of the official ChessX version.