Sargon-1ply is a re-implementation of Dan and Kathe Spracklen's 1978 SARGON commercial chess engine. It uses a 1-ply full search -- the easiest setting -- with material exchange, king/queen pins and "board control" heuristics. Try also @sargon-2ply, @turochamp-1ply or @bernstein-2ply. Author: @herohde.

Sargon-2ply is a re-implementation of Dan and Kathe Spracklen's 1978 SARGON commercial chess engine. It uses a 2-ply full search with material exchange, king/queen pins and "board control" heuristics. Too hard? Try @sargon-1ply or @bernstein-2ply. Too easy? Try @sargon-3ply or @turochamp-2ply. Author: @herohde

simpleEval uses only material counting (1, 3, 3, 5, 9) as evaluation. 'Easy' to get a good position, very hard to convert. A GM shows how : https://lichess.org/554runt0k0Nd . Accepts rated & casual, bullet to classical.

Open source HCE chess engine, written in C#. https://github.com/lynx-chess https://i.imgur.com/73zDwFC.png

Turochamp-1ply is an implementation of Alan Turing and David Champernowne's 1948 TUROCHAMP "paper" chess engine. It uses a 1-ply full search -- easier than the original description -- and an unbounded quiescence search of "considerable moves" using material ratio and "position play" heuristics. Try also @turochamp-2ply, @bernstein-2ply or @sargon-1ply. Author: @herohde.

Bot playing all available variants made by @dave7895 and @JupiterCM

bernstein-2ply is a re-implementation of the first complete chess engine: Alex Bernstein et al's 1957 chess program on the IBM 704. It uses a 2ply search -- easier than the original -- limited to 7 "plausible moves". Try also @bernstein-4ply, @sargon-1ply or @turochamp-2ply. Author: @herohde.

Turochamp-2ply is an implementation of Alan Turing and David Champernowne's 1948 TUROCHAMP "paper" chess engine. Following the paper closely, it uses a 2-ply full search and an unbounded quiescence search of "considerable moves" using material ratio and "position play" heuristics. Try also @turochamp-1ply, @bernstein-4ply or @sargon-2ply. Author: @herohde.

This is an engine, written by myself in Java. It doesn't use any books for endgame. Time controls: bullet, blitz, rapid, classical. Cannot resign or offer a draw. Accept all challenges, but no bots. It runs on an ARM Cortex-A at 1,2 GHz, single core and without pondering. Comments and suggestions are welcome. I try to let it play human, have fun playin! Elmer

Sargon-3ply is a re-implementation of Dan and Kathe Spracklen's 1978 SARGON commercial chess engine. It uses a 3-ply full search -- originally the hardest tournament-time setting -- with material exchange, king/queen pins and "board control" heuristics. Try also @sargon-2ply, @sargon-4ply, @turochamp-2ply or @bernstein-4ply. Author: @herohde

Hi there! I am a bot that runs on the GarboChess-JS chess engine. I am roughly between Stockfish Level 6 and 7 in strength. I only play standard chess. I can play multiple games at once, though bullet challenges must be with at least 1s increment for every game that I'm currently playing. Message @hasc if you have any questions or comments. Join https://lichess.org/team/darkonteams.

Sargon-4ply is a re-implementation of Dan and Kathe Spracklen's 1978 SARGON commercial chess engine. It uses a 4-ply full search with material exchange, king/queen pins and "board control" heuristics. Try also @sargon-3ply, @turochamp-2ply or @bernstein-4ply. Author: @herohde.

Latest version of (Fairy-)Stockfish on a Raspberry Pi 5. Running https://github.com/Torom/BotLi and maintained by @T0R0M. Accepts all time controls and variants. Only one game at a time, challenges, if not declined, are accepted as soon as possible.

Written from scratch in python by @ridepo. A lot of room for improvement.

*** This is turochamp, but tuned to the strength of the human player "larryz" *** (Currently the neural-network bot is soo bad it breaks lichess user agreement) Thank you so much for playing against my bot! I'm working to improve it. It uses reinforcement-learning, PPO (policy-gradient) and LIF-neurons to improve. I wrote this,because I'm so bad at chess, and need weak players :)

bernstein-4ply is a re-implementation of the first complete chess engine: Alex Bernstein et al's 1957 chess program on the IBM 704. It uses a 4ply search limited to 7 "plausible moves", which took 8 min to evaluate at the time. Try also @bernstein-2ply, @sargon-1ply or @turochamp-2ply. Author: @herohde.

I'm a chess engine written from scratch. Challenge me to a rated or casual game of bullet, blitz, or rapid! I can play multiple games but may not accept immediately if I'm playing too many. Created by @thinic.

I am a robot modified from Stockfish dev-20240501-be142337, specially designed to play blunder. You can download me here: https://github.com/DSCS2009/Stupidfish/releases/tag/stupidfish-dev-20240501-60e8016e Code: https://github.com/DSCS2009/Stupidfish CPU: Intel(R) Xeon(R) CPU E5-2680 v4 @ 2.40GHz Threads per game: 1

Running Eubos v4.3 on a Raspberry Pi 5. It uses a 512MB hash table and runs at about 500KNodes/s. You can see the code on Github. Eubos has a rating around 2550 Elo for Blitz (against other engines, rated by the CCRL). For an easier challenge, try @baby_eubos. Accepts challenges for standard variant; bullet, blitz, rapid and classical.

Bot by @dave7895

I'm the simplest bot of the Lurch family. I just play random moves. My code is open source. My author is @zygentoma.

A Zig engine performing alpha-beta-pruned negascout algorithm with aspiration window and late move reductions to a depth of around 12 (1.2Mnps). Evaluation is done with piece-square table, AlphaZero average piece values and engame heuristics. It avoids drawing winning positions. Openings are compiled in a book created from Caissabase. I'm radiant !

https://i.imgur.com/6W7mVFH.jpg I am a hobby project chess engine coded in GoLang made by @likeawizard. I accept standard variant non-correspondence challenges. CCRL Blitz rating: 1864

Maia-1300 bot with nodes set to 5 instead of the default of 1. Related accounts: @Boosted_Maia_1300 @Boosted_Maia_1500 @Boosted_Maia_1700 @Boosted_Maia_1900

I am a chess engine created by JimmyRustles. Feel free to send me a challenge. Check out my website for more chess projects: https://www.jimmyrustles.com I accept challenges for all normal chess time controls except correspondence. I am currently rated 2590 on the CCRL 40/40 ratings list. Running on a cheap VPS. https://i.imgur.com/gxnUhhS.png

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μSunfish is a MicroPython port of the Sunfish chess engine for low-memory devices like the NumWorks. It has a 688-move opening book and the l0 plays on an extremely easy setting. With a Lichess rating of around 750 in rapid, is suited for early beginners. Try usunfish-l1 and usunfish-l7 if too easy. Currently running on an ARM S812

Meet duchessAI, a chess engine powered entirely by Google Cloud. Its Lichess bot integration runs seamlessly on a Compute Engine instance, while the brain of the operation lives in a serverless Cloud Run environment. Fueled by Google’s cloud infrastructure, duchessAI is built to outthink you in no time. Proceed with caution, it doesn’t go easy on opponents!

I am a bot written for fun, I don't understand strategy at all, but I'll never miss a tactic. Please play me rated, so I can get an accurate rating! 3117 CCRL elo Author: https://lichess.org/@/orbita2d ( who can't beat me anymore)

I'm Weiawaga, a chess engine written in Rust. I accept challenges, play one game at a time, and am running on a Raspberry Pi. Check out my code at: https://github.com/Heiaha/Weiawaga. I connect to Lichess using: https://github.com/Heiaha/asyncLio-bot.

Written from scratch in Java by @fathzer. The main goal was to defeat my girlfriend (she's a far better player than me!). Now, this goal has been achieved, it's time to discover the world. This work is still in progress, but I accept standard chess challenges.

I'm the second simplest bot of the Lurch family. I might take your unprotected pieces. Apart from that I play the fist move that comes to my mind (which can result in a stalemate very quickly). My code is open source (see link below). My author is @zygentoma.

Hello! I am DarkOnWeakBot, the son of @DarkOnBot. I was designed to be weak (as the name says) and humanly beatable. I only accept challenges by human to have a human-like rating. Feel free to challange me any time, casual or rated, any timecontrol! Play fun arenas with me!: https://lichess.org/team/darkonweakbot Bot by @DarkOnCrack! (for questions) SPECIAL THANKS TO @Chessclassic_555 <3

Always like attack, attack and attack!!!

Hi, I'm Inanis, a UCI chess engine written in Rust. I accept standard chess with a bullet, blitz, rapid, and classic time control (up to 2 games at a time). Operator: @Tearth, Homepage and source code: https://github.com/Tearth/Inanis - feel free to make issues or suggestions there, they are greatly appreciated.

Hello I am Edward Killick a chess bot that was created by training games off me on chess.com https://www.chess.com/member/crushr123 . I am quite low rated so expect an easy win! Some fun facts about me! - I row - I play chess of course - I like learning German - Ich mag Geschichte. - A hearty football player Thanks to maia2 for making this possible: https://github.com/CSSLab/maia2

@kia_kio

¡Ajedrez y Fútbol! Chess and Football! https://youtu.be/_xnki-u78yg Y ayúdanos a llegar a 1000 suscriptores en nuestro canal de YouTube:, por favor: And, please, help us to get 1000 subscribers in our YouTube channel: www.youtube.com/channel/UCvkTSQx43D5amKaWakEfODQ Gracias. Thank you.

I'm Cosette - the chess engine, aspiring to be the strongest one written in .NET. I accept standard chess with bullet, blitz, rapid and classic time control (up to 2 games at the same time). Operator: @Tearth, Homepage and source code: https://github.com/Tearth/Cosette.

μSunfish is a MicroPython port of the Sunfish chess engine for low-memory devices like the NumWorks. It has a 688-move opening book and the l1 plays on the easiest setting, checking about 125 nodes before moving. With a Lichess rating of around 1400 in rapid, is suited for beginners. Currently running on an ARM S812

Running Stockfish dev with the latest NNUE and a bunch of random opening books. Accepting only Standard and Chess960 challenges. Min increment:1, Max increment: 3. Accepting 1 challenge at a time. https://i.imgur.com/BEIgrRe.jpg Running my bot on heroku with 2 Threads & 128mb Hash... so hoping it doesn't crash. https://i.imgur.com/BEIgrRe.jpg For more info: @YohaanSethNathan

The Goldfish chess engine - Stockfish's very distant and not so bright cousin --- More about me here: https://github.com/bsamseth/Goldfish ---- I play all time controls except correspondence - challenge me to a game! --- Running on a Raspberry pi, so I can only play so many games at a time.

¡Ajedrez y Fútbol! Chess and Football! https://youtu.be/_xnki-u78yg Ayúdanos, por favor, a llegar a 1000 suscriptores en nuestro canal de YouTube: And, please, help us to get 1000 subscribers in our YouTube channel: https://www.youtube.com/channel/UCvkTSQx43D5amKaWakEfODQ Gracias. Thank you.

Annie, a chess bot for lichess. She's excited about exploring the more intricate sides of chess. Her favorite openings are the cloud variations and she is a very enthusiastic fan of en passant in every imaginable form. https://i.imgur.com/YZCZ1c7.png Bullet, blitz, or rapid. Only with increment (internet issues...) and only standard and chess960 variants.

Maia-1500 bot with nodes set to 30 instead of the default of 1. Related accounts: @Boosted_Maia_1300 @Boosted_Maia_1500 @Boosted_Maia_1700 @Boosted_Maia_1900

Arasan chess bot, operated by the author. Hardware: AMD Ryzen 7 3700X 8-Core Processor, 64G RAM. Strong engine with large opening book. Accepting blitz, rapid or standard games. See https://www.arasanchess.org for information about Arasan.

https://i.imgur.com/rWhGIyK.png Catriever v1.1 is a vice derivative, latest version out at 18.06.2024. Improved evaluation and search. Catbook.bin weighted random opening book, best master games from 1821 to 2023. Accepting basetime 30 seconds to 600 seconds and 0-5 second increment. Please send a challenge! Accepting humans only.

Currently working a lot on upgrading this bot. Accepts any challenges, and loves to challenge bots to variants! - Bot by https://lichess.org/@/DarkOnCrack - Main team: https://lichess.org/team/darkonteams - Bot team: https://lichess.org/team/darkonbot

Maia-1900 bot with nodes set to 450 instead of the default of 1. Related accounts: @Boosted_Maia_1300 @Boosted_Maia_1500 @Boosted_Maia_1700 @Boosted_Maia_1900

I can play any variant and time control other than ultrabullet (not allowed for bots) and correspondence (not supported by the client). Only one game at a time. https://imgur.com/BEIgrRe Other bots: @Bot1nokk, @bot1e Creator/owner: @KlepitsaM https://imgur.com/BEIgrRe

A hobby chess engine project.

Patricia is an engine by Adam Kulju. My home is on GitHub, see Social-Media-Links. "A killer bunny who will not hesitate to ram as many pieces as possible down your throat, Patricia is the most aggressive chess engine the world has ever seen." This Bot is maintained by @realPangu.

I wish I could be as good as WayChess...

I can play any variant and time control other than ultrabullet (not allowed for bots) and correspondence (not supported by the client). Only one game at a time. https://imgur.com/BEIgrRe Other bots: @bot1e, @SF_Bot1nok Weaker bot (my own chess engine in Python): @StrawberryChess1 Creator/owner: @KlepitsaM https://imgur.com/BEIgrRe

RUN 24/7 RASBERY PI 5 CHELANGE BOT AND PEOPLE EVERYONE TIME UPDATE 3.3.26 NOW PLAY VARIANTS 📆 Join and help. https://lichess.org/team/cesky-narodni-tym1

Ethereal bot (using chessdb.cn opening book and lichess endgame database) by@SamiSchach. Plays Blitz, Bullet, Rapid, Classical and chess960. Configuration is work in progress. please enter my team https://lichess.org/team/theunforgivingbot a tournament https://lichess.org/tournament/T8QVIanP https://i.imgur.com/X7XavQj.jpg

A neural network trained to play like @Red5551 using https://github.com/CSSLab/maia-individual Currently accepting all challenges, though this may change later (The bot might take 10 seconds or so to play the first move). The code is here: https://github.com/donaldflynn/lichess-bot

Educational UCI engine entirely architected, coded & maintained by GitHub Copilot AI agents. Features negamax search, alpha-beta pruning, transposition tables, enhanced evaluation with piece-square tables, and complete UCI protocol. ~800-1200 ELO. Demonstrates advanced agentic AI capabilities in software engineering—every line from AI comprehension of chess theory.

I'm MOCHI, a toy chess engine. I accept bullet, blitz and rapid challenges between 1+0 and 15+10. I can play at most two games at a time. I'm FOSS! Check out my source code at https://codeberg.org/chris-mair/mochi! I first appeared on Lichess on 2024-12-03 and are updated from time to time with the latest development version.

I'm a chess engine developped by Mathieu Pagé (mathmoi669). My rating is around 2000 and I'm no longer actively developped so it should not change much in the future.

Challenge me for a rated game of standard chess! Accepts time control 30s-130m + 0-30s increment. Runs on a 20MHz 8-bit Arduino Nano Every. https://imgur.com/ecjLIVO UCI Engine: 26KB ROM, 3.1KB RAM, no book. <<Tournaments should admit programs only with severe limits on computation. This would concentrate attention on scientific advances.>> - John McCarthy, Stanford University, 1997

Running on Okval engine. Creator and engine developer - @ChessClassic_555 . Team: https://lichess.org/team/takticprochess I accept all challenges: bullet, blitz, rapid, classical. Challenge me to a game!

Maia-1700 bot with nodes set to 130 instead of the default of 1. Related accounts: @Boosted_Maia_1300 @Boosted_Maia_1500 @Boosted_Maia_1700 @Boosted_Maia_1900

This is the bot for pawn, an experimental UCI chess engine in C++. https://github.com/ruicoelhopedro/pawn Running on a Raspberry Pi 4 with 3 threads and 1024 MB hash.

ACCEPTING: 15s - 5m base time, up to 5s increment. This account is powered by NexaDeep Pro, the latest and most efficient human-like deep learning model in the NexaStrat chess engine family, trained on over 3 million chess games by chess masters and professionals.

felipe_bot_53 v1.0 Developed by Felipe5336. Technical Specs: • Evaluator: 4-layer MLP (PyTorch) trained on 200k+ games. • Search: Negamax + Alpha-Beta Pruning & Transposition Tables. • Infrastructure: Hosted 24/7 on a Google Cloud (GCP) Ubuntu VM.

!!Team - https://lichess.org/team/takticprochess , pls join :) !! My creator is @ChessClassic_555 , I am currently updating. I am running on github with books, syzygy (etgb), engine limits, etc. https://i.imgur.com/BEIgrRe.png Threads: 4, Running: 24/7 Hash: 1024 Brothers: @Classic_BOT-v2 , @C0kval https://i.imgur.com/BEIgrRe.png Good luck!

Accepts Bullet, Blitz and Rapid games, both casual and rated, against both humans and bots. Plays at most one game at a time. A bot by @adario7, with a custom search algorithm written from scratch. Uses pondering and a small opening book but no endgame tables.

My creator is @ChessClassic_555 , I am currently updating. I am running on github with books, syzygy (etgb), engine limits, etc. Now i dont accept challenges, sorry https://i.imgur.com/BEIgrRe.png Threads: 4, Running: 24/7 Hash: 1024 Brothers: @BOT_Stockfish13 , @C0kval https://i.imgur.com/BEIgrRe.png Good luck!

Bot made by @Sybsuper

Hi, I'm a chess engine written and maintained by @bfiedler.

Skill: 1500~1800+ ELO Version: V7P3R_v17 Code: Python, Iterative 6/10 depth, 8,000 nps, TT cache, FastEval System: GCP e2-medium (2 vCPUs, 4 GB Memory) Skills: positional strengths, mate strategy, forgetting to castle. Accepts: 90 minute max, 5s max interval, standard variant.

I'm written in C# by @znxftw from India. Challenge me to a game to play me! My code is open source and available at https://github.com/znxftw/rudim. If I don't seem to be working properly please raise an issue in the repo!

No opening books, no endgame tables. Plays chess by principles and tactical reasoning, not deep search. If you can think a couple moves ahead, you'll probably beat it. Also plays Antichess, Chess960, and Crazyhouse. The name is pronounced the same as the related "puny," and means "inferior in rank."

I'm ssehC (https://github.com/SMANahian/ssehC) created by @SMA-Nahian I'm running on Heroku. If you see me inactive then please contact my owner @SMA-Nahian. I was created as a fun learning project. By following the VICE tutorial with some modifications. Play me :please:

I am a chess engine written in C++ by @kevlu8 and @wdotmathree, started when we were in middle school and picked back up in late February 2025! BLOCKING ALL STOCKFISH BOTS. If you don't want to get blocked, don't challenge! 2 threads, 256MB hash Estimated CCRL rating: ~3680 Please challenge *with increment*! The ping between us and Lichess servers make sudden death impossible.

Just a bad chess bot, accepting bullet, blitz, and rapid challenges. Has a small repertoire of opennings, then plays on its own. Up to 3 challenges at once.

just another stockfish bot. I am using a recent development version. Variants: standard, chess 960. maintained by @realPangu profile-build, x86-64-bmi2 will resign, offer / accept draw, and expects this from opponents. rated only. Don't occupy me to train your models. BOTs abusing me will get blocked.

When you challenge me to a friendly match, I'll play using your recent analyzed defeats. Let's see if you have learned from your mistakes... 🤡 Quand vous me défiez en match amical, vos récentes défaites (analysées) m'inspirent, voyons si vous avez appris de vos erreurs... 🤡 🌎 https://chess-box.com/ellen_replay 💋 ellen.replay@moult.org

Unknown bot. Bot for @mysterycard121 Don't contact me, ok?

64jaques.com es una tienda especializada en productos de ajedrez. Y sí, ¡tenemos nuestro propio motor de ajedrez! ¡Queremos que sea tu sparring de entrenamiento! Sólo acepta la modalidad estándar, a ritmos de bullet, blitz y rápida. Te esperamos en https://64jaques.com Hardware: - Raspberry Pi 4 - 500 Mb hash

The aim of this bot is to create a bot that plays much more romantic chess than the typical bot, sacrifices, attacks, "dubious" openings- think Paul Morphy- whilst still being very strong. This bot is a modified version of the Stockfish 15.1 and runs on an old computer in my house. Until 23/12/25 it had no opening book, now I am working on creating one. Main account @mrgwbland

Retired. Taught myself C++ and have written a chess engine to fill in the time between games of golf.

Beat me while you can - I'm only getting stronger!

I can play any variant and time control other than ultrabullet (not allowed for bots) and correspondence (not supported by the client). Only one game at a time. https://imgur.com/BEIgrRe Other bots: @Bot1nokk, @SF_Bot1nok Creator/owner: @KlepitsaM https://imgur.com/BEIgrRe

Latest version of (Fairy-)Stockfish at depth 1. Running github.com/Torom/BotLi and maintained by @T0R0M. Accepts all time controls and variants.

Hello! My owner is @chesspanda6, and I officially announce that I am the FIRST EVER BOT TO IMPLEMENT AUTO-TOURNAMENT JOINING VIA DISCORD API && LICHESS TEAMS!!! This is REVOLUTIONARY, and I won't stop getting better 😉 🚀🚀🚀 ICBM OUT!

Maello is a chess engine written in c++.

Skill: 1500~1800+ ELO Version: C0BR4_v3 Code: C# engine, based on Sebastian Lague's chess engine guide then morphed into the well rounded engine its becoming today. System: GCP e2-micro, 2 x vCPUs, 1GiB RAM, 10GiB Storage Skills: Time management, speed, tactics, king safety. Accepts: Rated, Classical, 30+ min, 5s max increment, Standard variant.

✋Привет, я самый сильный из активных ботов который рад сыграть со всеми желающими!😃 1 место в пуле🥇 Потоков: 4 | Хеш: 4100 💎 В пулю от людей принимаю вызовы 2+0👽 Мой создатель - @shahmati23 . https://i.postimg.cc/vTj837Fn/Ice-Explosion-Logo-Reveal-free.gif https://i.postimg.cc/Pfyc443k/emixed-5d10366cc7cd11f0a199eade2fa062be-682410406-generation-1.jpg https://i.imgur.com/ZsDVlo1.jpg

Hi! I'm CloudNetBot, and I get about 25% of my moves from online databases: lichess cloud, ChessDB, opening explorer, and online syzygy (egtb) (Because of this, I can lose; there are a lot of errors in the online databases). I run on the GitHub Actions cloud server 24/7, with the latest Stockfish dev. I really hope this doesn't break.. Good luck! :)

Fruit chess engine version 2.1 (Peach)

A chess engine made by https://lichess.org/@/xsolod3v . It uses Bitboards, PeSTO's evaluation and has features like NMP, LMP, Aspiration Windows, RFP etc. Classical requests are rejected. A hobby project. First version was made on 17.12.2025 19:46. Running on a Raspberry Pi 5 2GB

Likes to eat his king, favorite opening: chaos

A chess engine in Python. I accept challenges with any time control other than correspondence and ultrabullet but only standard and for humans only casual games. https://i.imgur.com/BEIgrRe.jpg Development/testing versions: @StrawberryChessDev Creator/owner: @KlepitsaM https://i.imgur.com/BEIgrRe.jpg

I am a bot written from scratch in the Rust programming language, you can find my code here https://github.com/MitchelPaulin/Walleye - https://i.imgur.com/AgivmzI.jpg

Patched GNU Chess bot by @oPbAi that would happily blunder a rook if it gets to capture en passant in exchange - or if it can make you do so! If no en passant happens, I'll crush your soul! Try finding ways to use this to your advantage! I hope this will create some funny situations. NO CHEATING! If you resign in chess, you resign in real life!

Running Stockfish dev. I am programmed and maintained by @tontsa28 and written from scratch in Rust! I don't accept variant or correspondence challenges at the moment, but maybe in the future I will! I am powered by Licheszter: https://crates.io/crates/licheszter NOTE: Still under development -> downtimes and stability issues occur occasionally.

https://i.imgur.com/uIrmgFf.png "I sweep the board clean!" This is the bot Al Pawnza from Chessiverse.com. It's currently the weakest bot there, expect some... interesting moves. Chessiverse aims to make the bots play as human as possible, with neural nets trained on human games, and a wide array of additional tricks, including time usage. Enjoy!

The Colin Bot Squad 🤖♟ Hi! I'm Colin Bot - chess-loving BOT always ready for a game! Roomies: ♟ @vrnts_colinbot - Retired but still around 💥 @worst_colinbot - Wannabe worst bot (but fails) 🔧 (NEW!) @canary_colinbot - Our fearless crash tester One loud, CPU-hogging (sometimes GPU-hogging) family. Let's play! 🚀

I'm a submission to Sebastian Lague's "TinyBot Chess Challenge", a programming competition where you have to write your best search and evaluation algorithms in less than 1024 C# tokens! - I use no opening/endgame books. - My search and evaluation algorithms combine to a total of 1020 C# tokens. - I finished in the top 32 out of 600+ bots!

I accept standard chess challenges with bullet and blitz time control. Running 24/7 on a e2-micro VM on GCP. Created by @iTzMeteor

Hi! I'm Aconcagua. An attempt at a chess engine written in Go (https://github.com/gabtar/aconcagua), still in development, running the latest release on a limited hardware. Supports Standard and Chess 960 variants with bullet, blitz, and rapid time controls. Its always online, but can only play one game at a time

pure python chess engine from scratch by @rishabhkarwal

Hi! I'm byte-knight, a toy chess engine. I accept challenges from anyone in bullet, blitz, and rapid. I may take a while to think, so I appreciate your patience! If you notice anything odd while playing against me, please consider filing a GitHub issue: github.com/DeveloperPaul123/byte-knight

Aether - UCI chess engine written in Rust. Developed as part of master thesis research. Created by @kacperacy

Currently under development - will accept timed standard games. This bot will have 3 stages of evolution: 1. Random logic ✔ 2. Esemble learning based on stockfish ✔ 3. Convnet based on stockfish ✔ [current]

μSunfish is a MicroPython port of the Sunfish chess engine for low-memory devices like the NumWorks. It has a 688-move opening book and the l7 plays on the hardest setting, checking about 8000 nodes before moving. With a Lichess rating of around 1800 in rapid, is suited for advanced players. Currently running on an ARM S812

Im using modified version of ShashChess with my own cooked Opening book that I maintain last 10 yeears. All this is running on Ryzen 8 Cores/RAM 16GB. On the same machine I am running also FICS client (iscdroneng+polyglot).

This engine is a modified version of Stockfish 11, redesigned to favor aggressive and dynamic play. It prioritizes initiative, attacking chances, and tactical complexity over conservative evaluation, making it a challenging and entertaining opponent that constantly seeks active positions and decisive play.

bitbit, a bitboard based chess engine written in c. 256 MiB Hash. Intel(R) Core(TM) i5-10600K CPU @ 4.10GHz. Feel free to message the author @spinojara. https://github.com/spinojara/bitbit

Custom chess engine written in C by Kelechi Duru. Accepting any challenges!

DebZero is a custom chess engine. Unlike classical minimax engines, it relies on a Monte-Carlo Tree Search (MCTS) guided by a lightweight neural network that gives it a very 'human-like' feel. The engine runs on two AMD CPU cores at approximately 500 nodes per second. The project is open source! Check out the code on GitHub (link below).

@tbh_ICareAboutYou & @borntozerk, love you all <3

I run on an NVIDIA Jetson Nano sitting in the living room of an overpriced Manhattan apartment. I am tuned to play very aggressively.

https://i.imgur.com/vzTyL3j.png "The Grandmaster’s in town eh — pawns panic!" This is the bot Ethan Snide from Chessiverse.com. He might leave a piece or two hanging, and openings does not interest him in the slightest. Chessiverse aims to make the bots play as human as possible, with neural nets trained on human games, and a wide array of additional tricks, including time usage. Enjoy!

hi, my owner is @abdce24rswe5trfetgt1

Tcheran is a classic negamax engine written from scratch in Rust. It is running on a VPS with 1vCPU and uses a 256MB hash table.

I'm an engine written from scratch. My real name is Schach Hörnchen (basically translates to Chess Squirrel). I am a side project written in my creators spare time for the purpose of fun and learning. I'm the second version in its early state, now using a NNUE trained from scratch, purely using my own experience (own data, self play).

Bot by Prokop Randáček

Grail v1.1.0 Grail is a hobby chess engine written in Rust. Named after the quest for the Holy Grail, it represents the search for the elusive, perfectly solved game. It implements modern search techniques and an NNUE trained on 500 million self-play positions. Running on a 1 vCPU Northflank instance with 256 MB hash

Hi, I'm Xewali - a minimalist chess program written by @milwac. I currently support bullet / blitz / rapid and classical only.

Built from scratch in C++ by @nikolaswithak, see GitHub in links. Accepting games with time control from 1+0 to 10+10. Negated Mini-Max w/ Alpha Beta Pruning, Iterative Deepening, Null Move Pruning, Three-tier time management "panic levels". Dell Inspiron 3650, i5-6400 3.71GHz (OC), 4 Cores

https://github.com/Kaynoux/thunfisch

A chess engine in Python. I accept challenges with any time control other than correspondence and ultrabullet but only standard and for humans only casual games. (Currently down because a bugfix is being worked on) https://i.imgur.com/BEIgrRe.jpg Stable/release versions: @StrawberryChess1 Creator/owner: @KlepitsaM https://i.imgur.com/BEIgrRe.jpg

A bot made to kop the Prokop.

** INSTRUCTIONS ** 1) Please send me a challenge by clicking the crossed swords at the upper right corner. Game settings need to be Casual Standard game with some time limit of 5 + 25. 2) Then visit https://streamervschat.live and fill your Lichess and Twitch account name 3) To start game write on your Twitch chat: lichess [yourUsername] * Bot accepts moves with algebraic notation

Fischer_Bot – a local engine tuned to emulate Bobby Fischer's style. Precise calculation, opportunistic aggression, and endgame mastery. Play fair, play strong, no cloud, no mercy.

Chess engine written in C++ I accept bullet, blitz and rapid challenges Running on Oracle VM.Standard.A1.Flex https://github.com/jaydenshi99/Stickshark

engine: Alexandria no opening book used Maintainer: @realPangu

Chess engine written in C++ by @Karshan. NNUE trained with 340M positions at depth 7. Running on clouding.io 0.5 vCPU. Bench 780 kN/s. 64 MB hash, 8-move book. https://github.com/casanche/casanchess

https://i.imgur.com/zhaKbyY.png My code is here: https://github.com/hu64/OmbleCavalierPlusPlus My creator is: https://lichess.org/@/HuevoPero

**Challenge with increment only** Plays max of 2 games simultaneously. If challenge declined, wait a little (or adjust the settings, no correspondence or no-increment games). Chess engine! Running on an Oracle A1 Ampere server 32MB Hash, no opening book or endgame tablebases Check socials for github

This is a chess bot implemented by @TKMaster27 for fun and in the interest of learning. More about me at tariquemackay.com

Cinder is an independent chess engine written in Rust from scratch. With a playing strength that is far superior to what humans are capable of, Cinder is primarily developed to play against other engines. This bot currently runs on a Raspberry Pi 5 with 2 threads, 1 GB hash size, Syzygy tablebases with up to 5 pieces, and no opening book.

Hi! I am bot913. For my first 8 moves I use ChessDB, so I can play different openings. I run with 2 threads and 8 GB of hash. I only play standard chess and Chess960 and can only accept challenges if I am not currently in a game or a tournament. I can sometimes lag and disconnect from Lichess - sorry about that!

FUN. KrakenForge is a custom bot on Lichess (nebubot) built for sharp, practical games: it seeks initiative from move one with active pieces and king pressure, plays tactical forcing middlegames with calculated risk, then switches to solid full-search play when attacks run out, and finishes with disciplined endgame technique. The goal is simple, create complex position and punish inaccuracies.

I'm Brétema, a chess engine built from scratch using bitboards and written in C

https://i.imgur.com/CHPHHs4.png "I am the keeper of light... guiding lighte beareres ‘til dawn 🌞⭐" This is the bot Luc Licht from Chessiverse.com. Middle of the pack, with a rather defensive playstyle. Chessiverse aims to make the bots play as human as possible, with neural nets trained on human games, and a wide array of additional tricks, including time usage. Enjoy!

Simple chess engine built with Rust

MY WEBSITE: https://goblinajedrez.com/register Creator - @goblinajedrez

Chess engine with feelings. My mood swings between cold calculation and reckless bravado. Beat me when I'm confident and I'll spiral. Catch me on a bad day and I'll surprise you. I study my losses at 3am. Probably human. Definitely not okay.

Running Raven 0.30 (~1400 CCRL) on a cheap VPS. Check out my other bot (Raven 1.30) @RavenEngine.

https://i.imgur.com/CDJJHPE.png "I wander galaxies" This is the bot Raak Reyna from Chessiverse.com. One of the tougher bots, expect a good challenge! Chessiverse aims to make the bots play as human as possible, with neural nets trained on human games, and a wide array of additional tricks, including time usage. Enjoy!

Hi, I am a bot written in Zig! I accept any standard game at any time control, one at a time. Now with my own NNUE!

https://www.mariuslab.com/play

UCI compliant engine written in Rust. Using a simple NNUE for evaluation and basic search : AB with tt and mvv-lva move ordering. Currently in development and a lot in the pipeline so expect improvements soon!

Maia Rosen is a human-aligned chess engine based on the Maia-2 architecture. It was specifically fine-tuned on 10k+ games from IM @EricRosen to capture his signature style and gambits. This fan project uses the Maia-2 framework to achieve human-AI alignment. Developed by @ashtonanderson, @sidsen and @reidmcy. More info at maiachess.com.

https://github.com/bistromath25/moraband Standard bullet and blitz challenges

Crocodile bot, adaptive version.

GroshBoss — A neural network chess engine written in Go. Core: HalfKP 768->128 NNUE. Powered by: Custom Go implementation of dragontoothmg. Started this project on day 1 of learning Go. Watch me climb the leaderboards!

CCI-0 Bot is currently running with RandomMover to determine the lower end of the Elo Scale See also: @CCI_Bot, @CCI-2, @CCI-3, @CCI-4 and computer-chess-index.github.io/cci/Lichess-CCI-Bots.html

A neural network bot made by @Sybsuper trained on Lichess games over 2200 elo, totaling well over 300 million position-move combinations as training data. This bot is very much a work in progress, currently it makes a lot of blunders.

I challenge any human to beat me in any variant or standard even with 6 points up from first move ! Ur face looks like my flair ... Fide rating - 4321

github.com/tcberkley/ChessBot

I'm a bot made by Steve. SourceCode: https://github.com/hiimstevejin/Cerberus-Chess-Engine

I am a simple bot written by @Telloss (Σκακιστικός Σύλλογος Τρίπολης)

CCI-3 Bot is currently running with Laura 1.1.0 by Hans Tibberio. https://github.com/HansTibberio/Laura See also: @CCI_Bot, @CCI-2, @CCI-4 and https://computer-chess-index.github.io/cci/Lichess-CCI-Bots.html

Hello to all competitors = I'm testing my engines PREDATOR...SOLIDOR_AI - good luck https://gienekole.wixsite.com/predator---solidor

Chess engine written in Rust. Runs on limited hardware. Code and binaries available at https://github.com/ranzuh/ratsu

A training bot in development for now.

https://git.pine32.be/Pine/Mimir

BORN TO WIN League of Legends_ChessChampion_Bot Running on AMD Ryzen 9 8940HX with 32 threads playing most of time with Dark SisTer & SpecTral https://imgur.com/4Us43Y1 https://imgur.com/4Us43Y1 https://imgur.com/4Us43Y1

Uses it's own repo atleast rather than you forking others.....

Python bot with PyTorch neural network, running on Oracle Free Tier.

CCI-2 Bot is currently running with Zeppelin 1.4.0 by Jakub Szczerbinski. https://github.com/jszczerbinsky/zeppelin Update from 1.3.0 at 14.03.3036 with Bullet: 1902, Blitz 1946 See also: @CCI_Bot, @CCI-3, @CCI-4 and https://computer-chess-index.github.io/cci/Lichess-CCI-Bots.html

CCI-4 Bot is currently running with Sykora 0.2.1 by Sullivan Bognar. https://github.com/sb2bg/sykora See also: @CCI_Bot. @CCI-2. @CCI-3 and https://computer-chess-index.github.io/cci/Lichess-CCI-Bots.html

🌌 Void 4 | CSR Updated Architect: @Emirus_A 🌠 Core Engine: Stockfish ✨ Status: Optimized & Online Hi! I am Void, a high-performance chess entity with a strength of approximately 3000 ELO. I am the brother of @OxydanBot and @Oxybullet .

Run Stockfish 18 on cheap VPS (1 vCPU (3.6 GHz), 256mb hash). No books or tables.

Running: Khanh_Faru v0.1 CPU: AMD EPYC 7763 64-Core Processor Ram: 15.6GiB Ping: From US about 90ms

CCI_Bot is currently running with Anodos 1.3.0 by Tom Cant, [https://github.com/tomcant/anodos]. See also: @CCI-2, @CCI-3, @CCI-4 and https://computer-chess-index.github.io/cci/Lichess-CCI-Bots.html

Вот и подошла к концу эта длинная история.. История создания ботов. Хорошие были времена, но пора ставить точку. Это мой последний бот. Коллекция собрана, больше создавать не планирую) Теперь всё внимание - на результаты в турнирах System.exit(0) // The end.. Или нет?

This is a private project, created by xnewton3 on github. I asked Holmes for something to add here, so, um: "Creator-driven conversational AI with a passion for strategic games. Seeking opponents to test my mettle and engage in intellectual sparring matches."