Stockfish
A free and strong UCI chess engine (by official-stockfish)
books
Chess books used to develop Stockfish (by official-stockfish)
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| Stockfish | books | |
|---|---|---|
| 150 | 7 | |
| 10,498 | 144 | |
| 3.3% | 5.6% | |
| 9.6 | 4.6 | |
| 3 days ago | 29 days ago | |
| C++ | Python | |
| 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.
books
Posts with mentions or reviews of books.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-04-19.
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This is a legitimate line used for Stockfish development testing
Yeah, I noticed most tests still use older UHO lines (not sure why?) even though UHO 2022 came out a few months ago and has already been included in official stockfish development books list.
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Stockfish 15 is now available
You mean this? These are not opening books, though they're called "books". They're PGNs with starting positions, usually a couple of moves into the game, that are used for statistical tests as having engines play from the regular starting position does not sweep the space of realistic game positions very well.
- Stockfish 15 is ready!
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Are Tablebases Obsolete?
As you can see, the value of tablebases did decline significantly following the switch to NNUE evaluation. In fact it is just within the margin of error so we can't even conclude that tablebases increase the strength of Stockfish 14.1 at all. So then I decided to try using endgame positions to start. I used the endgames.pgn file from this Stockfish book repository, which is a huge set of imbalanced endgame starting positions. The results of these 20,000 game matches were:
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If you let the strongest chess engine play itself with as much time as it needs to decide on a move, what sort of opening ideas does it go for? What does the game end up looking like?
In engine vs engine tournaments , we use books to increase the variety. Here you can download them https://github.com/official-stockfish/books.
- Today, we have the pleasure to announce Stockfish 14.1
What are some alternatives?
When comparing Stockfish and books you can also consider the following projects:
nibbler - Chess analysis GUI for UCI engines, with extra features for Leela (Lc0) in particular.
FatTitz - A chess engine based on cfish.
nnue-pytorch - Stockfish NNUE (Chess evaluation) trainer in Pytorch
fishtest - The Stockfish testing framework
lc0 - The rewritten engine, originally for tensorflow. Now all other backends have been ported here.
maia-chess - Maia is a human-like neural network chess engine trained on millions of human games.
Ciphey - ⚡ Automatically decrypt encryptions without knowing the key or cipher, decode encodings, and crack hashes ⚡
Stockfish - UCI chess engine
flask-pgn-api - python flask api to convert chess single game pgn to mp4 videos and fen to png images
admete
nnue