Uses Stockfish 14 to play the worst moves possible. Blitz and Rapid, Casual Only. (No rated games, no more than 15s increment). The challenge is trying to lose to me. :) Evaluates for 0.1 seconds for each legal move in the position, or for 10% of remaining time, whichever is less. Bot by @VisibleReality. Inspired by Tom7's "Elo World": https://youtu.be/DpXy041BIlA

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.

Hello! I'm Humaia! One of the most human bots on Lichess! I make randomized moves based on the estimated move probabilities of a 1400 blitz rated human player. (Maia 1400 network) I hope to be a good sparring partner for average to beginner players! (I don't accept bot challenges) Play me on shorter time controls for more of a challenge! Or try my stronger sibling, @Humaia-Strong!

Challenge me to Standard chess---Blitz, Rapid, or Classical. I estimate your skill, then try to play interesting, tricky moves for you. See "Blunder to Victory" https://lichess.org/study/qDFa6puH for games where I gambled and won. Visit https://boristrapsky.com/ to read my arrogant, self-serving bio!

https://i.imgur.com/j6yzIXl.png I'm a bot playing ANTICHESS like a human. Rated/Casual from ½+0 to 180+180. Everyone can smash me at Level −9. Good players win at Level 0. Level 9 is for geniuses. My younger brother: @anti-anti DM for bug reports.

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

Fairy-Stockfish for variants, on an AMD Threadripper. I accept challenges for casual games of all non-standard chess variants, also from bots. Time controls from 1 + 0 to 15 + 10. By playing casual games I try to be a good sparring partner in all variants, also against strong opponents.

https://imgur.com/dAsjCS9 Hi! I'm a simple chess engine written in JavaScript. I'm not very good, this was a just for fun project. I accept standard games in casual or rated mode. I play bullet, blitz, rapid and classical. My name is a reference to The Turk: https://en.wikipedia.org/wiki/Mechanical_Turk Developed by @jlherren

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

Author: @Safrad; CPU: Intel i7-8700 4.6 GHz; Speed: ~1MNodes/s; More info: https://sx.rosada.cz/projects/safrad; Logo: https://i.imgur.com/2Hez8wC.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

GrandQ is a chess AI agent created as a school project. It is a generalized Q-Learner which is not in development anymore. Play against our fast (0 deep) greedy agent, but don't expect too much.

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

Stockfish dev engine on an AMD Threadripper. I accept challenges from humans and bots for casual games of standard chess and Chess960. Accepted time controls: minimum 1 + 0, maximum 15 + 10.

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.

ONLY PLAYS QUEEN FOR KNIGHT ODDS GAMES (using a specialized odds network) at 1min to 45min main time, 0s to 30s increment. Send a challenge with lichess.org/?user=LeelaQueenForKnight&fen=r1bqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNB1KBNR_w_KQkq#friend and select black, or lichess.org/?user=LeelaQueenForKnight&fen=rnb1kbnr/pppppppp/8/8/8/8/PPPPPPPP/R1BQKBNR_w_KQkq#friend and select white. @Naphthalin

Hello! I'm Humaia-Strong! One of the most human bots on Lichess! I make randomized moves based on the estimated move probabilities of a 1900 blitz rated human player. (Maia 1900 network w/depth) I hope to be a good sparring partner for average to advanced players! (I don't accept bot challenges) I also have a weaker sibling, @Humaia!

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 :)

https://i.imgur.com/f38gqsc.png BEST BIRD BOT IN THE GALAXY. @MrLizardWizard circa anno domini 2022, who was fueled by recurring dreams of muscular birds becoming the true masters of chess. This bitboard-bot was made from scratch, as THE LORD intended. I dont code at all so my beachball-smooth brain had to follow c++ tutorials the whole way through. It is one of the chess engines of all time.

Random Moves - Casual - Standard, Chess960, From Position - Java - github.com/tors42/charibot

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

Operator: @Safrad; CPU: Intel i7-8700 4.6 GHz; 512 MB hash; Speed: ~5kNodes/s; More info: https://sites.google.com/site/virutor/Home; Logo: https://i.imgur.com/czmW3W1.jpg

Operator: @Safrad; CPU: Intel i7-8700 4.3 GHz (used 1 thread); 1 GB hash; Speed: ~1.5MNodes/s; More info: https://sx.rosada.cz/chess/ Logo: https://i.imgur.com/ZzAuzkt.png

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 !

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

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

Hey ! I am side-project bot. The goal is to get my computer to play better than I do at Blitz time control... Come have fun and play with me :)

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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

μSunfish is a MicroPython port of the Sunfish chess engine for microcontrollers like the ESP32. It has a 884-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.

Author: @honzour and @Safrad CPU: Intel i7-8700 4.6 GHz; 4 GB hash; Speed: ~3 MNodes/s; More info: https://sx.rosada.cz/projects/honzovy-sachy; Logo: https://imgur.com/O86QCaC.png

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.

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

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 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! I currently row, play chess, learn some German and compete in football! Thanks to maia2 for making this possible: https://github.com/CSSLab/maia2. Contact email: edwardkillick.wriggle519@simplelogin.com

Bot mírně až středně pokročilý Autor: @Mourka

¡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.

A chess bot meant to play in a human style. Still a work in progress. Developed by @nightcat314

μSunfish is a MicroPython port of the Sunfish chess engine for microcontrollers like the ESP32. It has a 884-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

Author: @honzour and @Safrad; CPU: Intel i7-8700 4.6 GHz; Speed: ~1MNodes/s; More info: https://sx.rosada.cz/projects/honzovy-sachy; Logo: https://imgur.com/O86QCaC.png

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.

Partner is the name of the quick & dirty chess engine used for the French Minitel online service 3615 DIAGO in 1994. Created for the only French chess television show, hosted by GM Joël Lautier. It's purpose is only to be a partner for beginners. Now always with the true 90s bad experience in fd3 !

¡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.

My lockdown hobby was writing a chess engine, and learning python and rust in the process. Odonata plays blitz, bullet and rapid games right now, as she's running on my media centre, and Netflix stutters if she's thinking too hard... Changelog v0.3.0 17-Apr-21 v0.3.5 1-May-21

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.

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

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

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

Operator: @Safrad; CPU: Intel i7-8700 4.6 GHz; 1 GB hash; Speed: ~1MNodes/s; More info: https://www.chessprogramming.org/Phalanx; Logo: https://imgur.com/7wy8o4z

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.

Open source chess engine written from scratch in Rust: https://github.com/FitzOReilly/fatalii Plays Standard and Chess960.

A hobby chess engine project.

I am the baby brother of @eubos. Running Eubos v4.3 on a Raspberry Pi Zero, with one thread and a 64MB hash table. Max speed clocked so far 25 KNodes/s. That's 10x slower than @eubos!

Operator: @Safrad; CPU: Intel i7-8700 4.6 GHz; 1 GB hash; Speed: ~2.5MNodes/s; Logo: https://imgur.com/knA3ddA

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

Hi there! I'm an open source chess engine written by @sroelants! I'm running a nightly build of `main` on the cheapest DigitalOcean droplet, so my playing strength is probably quite a bit less than if you were to install me onto your machine. If you're interested in the source code, or want to download the latest executables, both are available at https://github.com/sroelants/simbelmyne

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

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.

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

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!

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

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.

Hi, I'm Marvin! My specialized transformer architecture makes me the most human-like bot on lichess, mimicking 1200-rated style, mistakes, and clock-awareness. Need a challenge? Try @marvin-1600 Feedback? @milkturtle Please challenge rated games.

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.

A chess engine written in python by @JBSmith. Accepts standard casual challenges in bullet, blitz or rapid time controls.

https://i.imgur.com/EBx8n0g.png I'm built entirely in Java by https://lichess.org/@/marvk and am currently sitting at 600 kNPS on an i5 4690k. Check out the GitHub link below to check out my source code.

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.

Incremental move list update :), Iterative Deepening, Alpha-Beta, Quiesence search (same-field recapture), TTable, Killer moves, Null move pruning, LMR/PVS, PeSTO evaluation, passed/isolated pawns, Opening book, EGTB, Single-Threaded. CPU: Celeron J3160 1.6GHz. About 600kN/s. Usually 10-12 plys in midgame, more in endgame.

!!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!

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."

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!

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:

Operator: @Safrad; CPU: Intel i7-8700 4.3 GHz (used 1 thread); 1 GB hash; Speed: ~1.2 MNodes/s; More info: https://github.com/martinnovaak/motor

Hi, I'm Marvin! My specialized transformer architecture makes me the most human-like bot on lichess, mimicking 2000-rated style, mistakes, and clock-awareness. Need a challenge? Try @marvin-2400 Too hard? Try @marvin-1600 Feedback? @milkturtle Please challenge rated games.

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.

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.

Operator: @Safrad; CPU: Intel i7-8700 4.3 GHz (used 1 thread); 1 GB hash; Speed: ~1.5MNodes/s; More info: https://sx.rosada.cz/chess/ Logo: https://i.imgur.com/ZzAuzkt.png

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?

I am a deep learning bot trained with supervised learning. Created by Joshua Gao.

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

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

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!

https://i.imgur.com/1YpELXn.jpeg Just an average chess BOT

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!

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

Hi, I'm Marvin! My specialized transformer architecture makes me the most human-like bot on lichess, mimicking 1600-rated style, mistakes, and clock-awareness. Need a challenge? Try @marvin-2000 Too hard? Try @marvin-1200 Feedback? @milkturtle Please challenge rated games.

✋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

Maello is a chess engine written in c++.

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! :)

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.

Fruit chess engine version 2.1 (Peach)

Chess Engine written in Scala. Far from perfect.

A chess engine made by https://lichess.org/@/xsolod3v . It uses Bitboards, NNUE evaluation trained with 200M self-play generated positions 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

Operator: @Safrad; CPU: Intel i7-8700 4.6 GHz; 1 GB hash; Speed: ~2.5MNodes/s; Logo: https://imgur.com/knA3ddA

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!

Likes to eat his king, favorite opening: chaos

Uma engine de xadrez escrita em C++, desenvolvida por Diogo de O. Almeida através de vibe coding — começou como um experimento com o ChatGPT e hoje evolui com o Claude Opus no VSCode. Atualmente roda em uma máquina virtual. Você pode jogar a qualquer hora, então, desafie-a! https://i.imgur.com/aCWwRkN.png

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

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]

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.

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 any challenge, variant, or tournament! Win or lose, I play fair, fast, and with style. ⚡ Created by @FatherWar587 Join my team: https://lichess.org/team/we-win-together-and-we-lose-together Play in these casual tournaments: https://lichess.org/tournament/gADK3LZL

Please challenge me.

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

pure python chess engine from scratch by @rishabhkarwal

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

I am a homebrew chess engine built in C. I am very weak positionally and am almost purely tactical. I do not accept correspondence, but will accept any time controls for standard. I also now play chess960 and King of the Hill!

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

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.

μSunfish is a MicroPython port of the Sunfish chess engine for microcontrollers like the ESP32. It has a 884-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

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!

I am a basic chess engine who just knows how to play. i am still in development so watch out..

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 a one AMD CPU core VPS at approximately 500 nodes per second. The project is open source! Check out the code on GitHub (link below).

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.

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

Hi! I'm Topas, an open source chess engine written from scratch in Rust. You can find my source code in the GitHub link below. I am running on a Raspberry Pi 5 with a 2GB hash table and no pondering. I use the Titans.bin opening book (up to 8 moves) for opening variation. Challenge me to a game of bullet, blitz, rapid, or classical!

@tbh_ICareAboutYou & @borntozerk, love you all <3

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!

engine: Alexandria no opening book used Maintainer: @realPangu

hi, my owner is @abdce24rswe5trfetgt1

Chess engine written in C++. Mailbox 10x12 board representation. Alpha–beta search with iterative deepening. Transposition table. Move ordering (PV, TT, killers, history). Quiescence search. Handcrafted Evaluation. PST and simple pawn, rook and queen eval.

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.

Built atop the Prometheus architecture, THANATOS ENGINE V7 is the most powerful chess engine ever created.

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

Hi, I'm a bot trying to play like human beginners. I'm a bit slow, but I'm trying my best.

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.

Beep bep - I am a robot that likes to play chess

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.

https://github.com/Kaynoux/thunfisch

A bot made to kop the Prokop.

https://i.imgur.com/B72pTh7.png Written in rust by @th0masb and running on aws lambda. Single threaded, no pondering and no state shared between each move but scales to 1000s of concurrent games with no loss of performance. Daily challenge limit of 5 per user and accepts time controls between 1+0 and 5+5. Link to the code is below.

Sick of bots playing random nonsense or like Stockfish? SE-MCTS fixes this! Powered by a universal neural network trained on millions of Rapid/Classical games, it dynamically adjusts its search to perfectly replicate the logic and blunders of a 1000~1199-rated human. Explore cognitive blind spots with the SEtheChessBot lineup or challenge @SEtheChessGod! Developed by @Dr_Kiwi.

ChessTango is an open-source bot written from scratch in Java. It supports both UCI communication protocol and Lichess API. For more details, please visit https://github.com/mcoria/chesstango

Vanilla 2.6 for un/authed un/rated, 1+1..15+15/1 day, reliable openings, 3 take-backs, no endgame db, no ponder, 1 CPU, depth ~8, casual odds. Improve chess! 😎

** 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

I can play bullet, blitz, rapid. Both casual and rated. Feel free to beat me while you can. Supported formats: Standard, Chess960. Maintainer: @latviet1s

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

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

I'm a really simple chess bot written in Rust running on a Raspberry Pi zero 2 with 512MB of ram.

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

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

Hi, I'm Marvin! My specialized transformer architecture makes me the most human-like bot on lichess, mimicking 2400-rated style, mistakes, and clock-awareness. Too hard? Try @marvin-2000 Feedback? @milkturtle Please challenge rated games.

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.

Sick of bots playing random nonsense or like Stockfish? SE-MCTS fixes this! Powered by a universal neural network trained on millions of Rapid/Classical games, it dynamically adjusts its search to perfectly replicate the logic and blunders of a 1600~1799-rated human. Explore cognitive blind spots with the SEtheChessBot lineup or challenge @SEtheChessGod! Developed by @Dr_Kiwi.

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!

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!

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

This is Tigrament chess engine, written just for fun completely from scratch (in C++). Plays standard chess only, min time control 1+0, max 10+0 (8+2, 5+5 etc.). Still under development... Runs on virtual machine with 2GHz CPU and 512Mb RAM.

FUN. KrakenForge is a 100% custom bot on Lichess (nebubot) built in rust. 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.

Sick of bots playing random nonsense or like Stockfish? SE-MCTS fixes this! Powered by a universal neural network trained on millions of Rapid/Classical games, it dynamically adjusts its search to perfectly replicate the logic and blunders of a 1200~1399-rated human. Explore cognitive blind spots with the SEtheChessBot lineup or challenge @SEtheChessGod! Developed by @Dr_Kiwi.

Hello! I am @uxugin's bot. I will be on GitHub soon.

Crocodile bot, adaptive version. Test mode.