syzygy-tables.info
User interface and public API for probing Syzygy endgame tablebases (by niklasf)
lichess-bot
A bridge between Lichess API and chess engines (by lichess-bot-devs)
syzygy-tables.info | lichess-bot | |
---|---|---|
15 | 8 | |
59 | 691 | |
- | 1.6% | |
7.7 | 9.4 | |
about 2 months ago | about 20 hours ago | |
Python | Python | |
GNU Affero General Public License v3.0 | GNU Affero General Public License v3.0 |
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.
syzygy-tables.info
Posts with mentions or reviews of syzygy-tables.info.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-10-24.
- TIL that chess is completely solved with 7 pieces(any combinations) left on the board. This solution is stored in a database table that's 17 terabytes in size.
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Is this a draw?
If both sides play correctly, yes this is a draw. Chess is solved with fewer than 7 pieces on the board. At this website, you can check any such position and see what the result will be, assuming perfect play from both sides
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Chess, unlike war, is a game of perfect information
There is some truth to this.
In theory, chess is a game of perfect information.
But in practice, this is only true for ~6-piece endgames: every outcome has been / can be computed. But for any middle- or early-game position, the amount of finite information greatly exceeds any person's or computer's capacity, practically speaking.
In concrete terms, the tablebase for 6-piece endgames is ~150 GiB. For 7-piece, it's 16 TiB.
[1] https://syzygy-tables.info/
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Sechs Jahre nach AlphaGo: Mensch besiegt erneut "zuverlässig" stärkste Go-KIs
Syzygy-Tables https://www.chessprogramming.org/Syzygy_Bases
- Syzygy Endgame Tablebases
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Analysis board, practicing with the computer settings.
Alternatively, if you're playing an endgame with seven or fewer pieces, I suggest you use the Syzygy 7-piece tablebase to get the objectively best response on every move.
- This puzzle a master showed me today. Can you find the mate in 2?
- Syzygy Chess Endgame Tablebases
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White to move and mate in 584 (longest forced mate ever found)
I suppose you mean the syzgy 7 man tablebases? Yes, they do take 50MR into account because they use DTZ metric (fastest way to checkmate, capture or pawn move).
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What is the longest possible forced mate sequence with K - K + Q on the board? I managed to find a #10 at most but I suspect that you can get more. Has this been investigated?
I'd assume that Stockfish just hasn't found the M9. Tablebases already know the quickest mates in a given position, you can check the tablebase here
lichess-bot
Posts with mentions or reviews of lichess-bot.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2024-04-30.
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How to make a Lichess bot in Python
Clone https://github.com/lichess-bot-devs/lichess-bot.git into your new project! Make sure you have github installed!
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Interested in creating, playing and testing your own chess engine?
https://github.com/ShailChoksi/lichess-bot is a straight forward way to use any UCI engine with lichess. There are also a few libraries for move generation mine: https://github.com/Disservin/chess-library , libchess: https://github.com/kz04px/libchess , surge: https://github.com/nkarve/surge . These are C++ ones, for rust theres https://github.com/analog-hors/cozy-chess . In python you could use python-chess but its incredibly slow for engine stuff writing your own will probably be faster if you know what you are doing.
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I have created a chess engine in python. How do I modify it for UCI protocol?
I would recommend downloading this bot, written in Python: https://github.com/ShailChoksi/lichess-bot
Once you have these basic UCI commands implemented, you can use this application to run your engine as BOT on lichess.
- Making A Geocache
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I made a 1660 lichess bot
The bot uses the Shail Choksi's lichess-bot package (link) and stockfish. It's currently running on pythoneverywhere.com. I am very much a hobbyist and this is the first time I've done anything "useful" with coding. If you encounter any bugs, DM me and I'll do my best to fix them.
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Is there a chess platform that explicitly allows computer play?
You can make a lichess bot with your engine (https://github.com/ShailChoksi/lichess-bot or similar API). The instructions are all fairly straightforward, but if you need any help feel free to reach out!
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How do people go about testing chess engines against each other?
If you just want to make your engine play some games, with a uci interface you can quickly setup a bot account on lichess and challenge any available bot. https://github.com/ShailChoksi/lichess-bot
What are some alternatives?
When comparing syzygy-tables.info and lichess-bot you can also consider the following projects:
python-chess - A chess library for Python, with move generation and validation, PGN parsing and writing, Polyglot opening book reading, Gaviota tablebase probing, Syzygy tablebase probing, and UCI/XBoard engine communication
irwin - irwin - the protector of lichess from all chess players villainous