lila
irwin
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lila | irwin | |
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794 | 57 | |
14,558 | 486 | |
1.3% | - | |
10.0 | 0.0 | |
about 9 hours ago | over 1 year ago | |
Scala | Python | |
GNU Affero General Public License v3.0 | GNU Affero General Public License v3.0 |
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lila
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Lessons from Open-Source Game Projects
Lichess - Online Chess Server. Scala, TypeScript
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Avoid blundering: 80% of a winning strategy
> the player who committed more blunders lost 86% of the time
In some sense this is almost tautological. While finding an exact definition for a chess blunder isn't straightforward, here is one example from the Lichess UI:
https://github.com/lichess-org/lila/blob/b527746b179cdde6438...
Basically, if you make a move which decreases your winning probability more than 14% over the best move, that's a blunder. But winning probability is a nonlinear function of stockfish centipawns. A drop in 100 centipawns when you're up 15 points isn't a blunder. When the game was equal, it is.
Point is, by the time you know it's a blunder you already know something about the outcome of that move, that it swung the winning probability by more than 14%. So the analysis is kind of just measuring some function of winning probability and saying that it is highly correlated with winning probability.
- How I hacked chess.com with a rookie exploit
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So bad at chess that it’s genuinely upsetting at this point, I need some hope
If you want to improve make it your goal to play the best chess you can, not increase an arbitrary number. Watch YouTube series like John Bartholomew's "Climb the Rating Ladder" for some general insight into what you might be doing wrong. Read Irving Chernev's "Logical Chess: Move By Move" to see the thinking process of high level players. Do lots of puzzles (I like lichess.org for puzzles). And always analyze your games. When you analyze make it your goal to find at least two things you could have improved.
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Humans vs. Stockfish’s eval function
The easiest way to play against Stockfish is perhaps on https://lichess.org/, but it's not the only chess engine that evaluates positions with a neural network.
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Venruki’s take on the current issues with PvP
Lichess.com
- Death wants to take you, but you can challenge it to a game (virtual or not) to stay. what do you play?
- Ask HN: What fuel for my data furnace?
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The DGPT season opener will be sponsored by chess.com!
if you actually like chess, try lichess.org, the free and open-source, no ads ever, premium alternative
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I got a Chessnut Evo to review, here are my thoughts
The Chessnut Evo works almost flawlessly (I did not experience this issue but people have reported having ChessnutVision stop working on occasion which requires turning on/off to fix) with popular chess sites (officially supported are chess.com, lichess.org, Chess Kid and Chessable). I experienced no major lag when playing games on Lichess through the board There is the unavoidable delay of physically moving pieces, so it may not be ideal for blitz But for rapid or longer time controls. the ability to have your OTB games instantly logged and the ability to effortlessly analyze games after is game-changing for me. The one occasional hiccup I encountered was when quickly sliding pieces, it would register an incorrect move. But that’s an easy fix of adjusting the Limbo move delay (I don't like this option as it makes the board feel less responsive I prefer to just be aware and lift pieces instead of sliding).
irwin
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How common is false banning in chess?
For Lichess, you can get some sort of idea from reading the code. If I remember correctly, there's some threshold for the site suspecting you of cheating based on a variety of simple metrics (accuracy, blurring, etc) and then it gets sent to machine learning tools to analyze (here is one of them, and here's another).
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Chess’s Governing Body Delays Report on Hans Cheating Scandal
Lichess is open source. Here is their anti-cheating code on github: https://github.com/clarkerubber/irwin
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Spotting a cheater: Stats analysis
Yeah Irwin is the old lichess model - here (https://github.com/clarkerubber/irwin) as well as the more maintained fork (https://github.com/lakinwecker/irwin/commits/master)
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Lichess - Cheaters, bots, AI-based human hybrid opponents
This is nonsense. They’re a free and open source nonprofit with no interest in commercial buyers. I’ve played on lichess for 3 years, over which time I’ve never encountered more than 1 cheater within 10 games (and normally much less than that). Because the website is open source, you can see the cheat detection they use. It’s not perfect — there is no perfect system — but it’s transparent and in my experience very good.
- A question for technologists: can we start an open-source cheat-detection engine that becomes the gold standard of cheat detection engines?
- Can we see the Lichess cheat detection stuff?
- Banned for cheating, appealed, denied. What now?
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Machine Learning for detecting anomalies in chess
Isnt't lichess' cheat detection an ML based system?
- Main Takeaways from the Chess.com Report
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Which site has better cheat detection?
What's this? It was given as an answer on a question about this on lichess https://github.com/clarkerubber/irwin
What are some alternatives?
listudy - Listudy - chess training server
nnue-pytorch - Stockfish NNUE (Chess evaluation) trainer in Pytorch
Mindustry - The automation tower defense RTS
lichess-bot - A bridge between Lichess API and chess engines
Anki-Chess-2.0 - An interactive chess template for anki.
python-chess-annotator - Reads chess games in PGN format and adds annotations using an engine
monkeytype - The most customizable typing website with a minimalistic design and a ton of features. Test yourself in various modes, track your progress and improve your speed.
kaladin - Machine learning tool aimed at automating cheat detection using insights data.
logseq - A local-first, non-linear, outliner notebook for organizing and sharing your personal knowledge base. Use it to organize your todo list, to write your journals, or to record your unique life.
anarchychess-bot - The (un)official Lichess bot of r/AnarchyChess. Plays the Ruy Lopez, always captures en passant, never plays rook a4, and plays ke2!!/ke7!! when possible.
katrain - Improve your Baduk skills by training with KataGo!
Auto-Chess - A chess bot that automatically calculates the best moves and plays them for you