Uses Stockfish 18 (or Fairy 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

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!

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.

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!

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

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.

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

Simulation of a club-level player. Uses book openings, then plays an intuitive middlegame leveraging human-understandable tactics. Sometimes miscalculates complicated positions. Do not underestimate. Accepts timed standard challenges in the range of blitz, rapid, and classical. Please consider donating! BTC: bc1q35aysf8n9cuq4nva3jkalp94j4hs8suddtr67z

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.

I am an ANTICHESS-ONLY bot written from scratch by @CatalinFrancu. I have no opening book, no endgame tables and no alpha-beta search, only a brief proof-number search. I will often play lost openings. Development is mostly frozen since 2004. Feel free to challenge me at any time controls. You might also want to try my stronger sibling, @NilatacBot.

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.

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

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

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!

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

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.

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

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.

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.

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

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

μSunfish is a MicroPython derivative 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 Oracle VM.Standard.E2.1.Micro

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.

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

This is a human-style bot based off of @maia9. It plays at a higher level than @maia9 by looking at 10 positions per move instead of @maia9 's 1 position per move. See also @maia9_30n

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

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

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 :)

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

Starts by sacking the queen then tries to trick you. Accepts Bullet, Blitz, Rapid, and Classical. Only plays humans >1800 in rated games. Can play multiple games at once (except bullet). Message @SpaghetiMonstr if there are issues.

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!

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

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 !

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.

Crocodile weakest bot.

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.

This is a human-style bot based off of @maia9. It plays at a higher level than @maia9 by looking at 30 positions per move instead of @maia9 's 1 position per move. See also @maia9_10n

μSunfish is a MicroPython derivative 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 Oracle VM.Standard.E2.1.Micro

Bot running on Realme 10 (Helio G99 Octa-core) & created by @ChessClassic_555 Good luck! :)

Varied openings and game play. Pretends to think, like a human, instead of moving instantly. Too hard? @Demolito_L3. Too easy? @Demolito_L5. Accept challenges when: - Standard or Chess960 - time control between 1'+0" and 60'+40" - human & rating diff < 600

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

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, Atomic, Chess960, and Crazyhouse. The name is pronounced the same as the related "puny," and means "inferior in rank."

@kia_kio

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

¡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.

This is a human-aligned bot calibrated to play at roughly a 900 Elo level. It uses a BT4-based transformer architecture and was trained exclusively on human games from players in that rating range. Source code is available on: https://github.com/hrschubert/dala-training

Varied openings and game play. Pretends to think, like a human, instead of moving instantly. Too hard? @Demolito_L2. Too easy? @Demolito_L4. Accept challenges when: - Standard or Chess960 - time control between 1'+0" and 60'+40" - human & rating diff < 600

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.

A hobby chess engine project.

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 Creator/owner: @KlepitsaM https://imgur.com/BEIgrRe

Varied openings and game play. Pretends to think, like a human, instead of moving instantly. Too hard? @Demolito_L4. Too easy? @Demolito_L6. Accept challenges when: - Standard or Chess960 - clock between 1'+0" and 60'+40" - human & rating diff < 600

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

I am an ANTICHESS-ONLY bot written from scratch by @CatalinFrancu. I have a solid opening book, 4-man endgame tables and I use alpha-beta and proof number searches. Development is mostly frozen since 2004. Feel free to challenge me at any time controls. You might also want to try my weakened sibling, @CatNail.

I am a bot made from scratch by @melsharawy . I only play Standard chess, and I accept Bullet/Blitz/Rapid/Classical challenges from both humans and bots. You can view my source code on github: https://github.com/mse63/melsh_bot Connect with me on linkedin: https://www.linkedin.com/in/mahmoud-elsharawy-4618b7201/

Only plays humans Too easy? Try @maia3-79m_1400 Too hard? Try @maia3-79m_1000 Model used: maia3-79m.pt Run by @SpaghetiMonstr

¡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.

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

I'm running minnow (build 2025.05.21-0f9530b), developed and operated by @tm1280. Source code is available @ https://github.com/tm512/minnow. Currently hosted on a free Oracle Cloud VM running FreeBSD, playing using a 256MB hash table. As a consequence of being on a single-core VM, I only accept one game at a time. I'm not a strong engine, but hopefully fun to play against!

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.

This is a human-aligned bot calibrated to play at roughly a 700 Elo level. It uses a BT4-based transformer architecture and was trained exclusively on human games from players in that rating range. Source code is available on: https://github.com/hrschubert/dala-training

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.

Varied openings and game play. Pretends to think, like a human, instead of moving instantly. Too hard? @Demolito_L5. Accept challenges when: - Standard or Chess960 - clock between 1'+0" and 60'+40" - human & rating diff < 600

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.

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.

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

Varied openings and game play. Pretends to think, like a human, instead of moving instantly. Too easy? @Demolito_L2. Accept challenges when: - Standard or Chess960 - clock between 1'+0" and 60'+40" - human & rating diff < 600

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

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

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]

This is a human-aligned bot calibrated to play at roughly a 1300 Elo level. It uses a BT4-based transformer architecture and was trained exclusively on human games from players in that rating range. Source code is available on: https://github.com/hrschubert/dala-training

Only plays humans Too easy? Try @maia3-79m_1000 Too hard? Try @maia3-79m_600 Model used: maia3-79m.pt Run by @SpaghetiMonstr

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!

Varied openings and game play. Pretends to think, like a human, instead of moving instantly. Too hard? @Demolito_L1. Too easy? @Demolito_L3. Accept challenges when: - Standard or Chess960 - time control between 1'+0" and 60'+40" - human & rating diff < 600

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

This is a human-aligned bot calibrated to play at roughly a 1100 Elo level. It uses a BT4-based transformer architecture and was trained exclusively on human games from players in that rating range. Source code is available on: https://github.com/hrschubert/dala-training

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

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!

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

Only plays humans Too easy? Try @maia3-79m_800 Too hard? Try @worstfish Model used: maia3-79m.pt Run by @SpaghetiMonstr

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.

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.

This is a human-style bot based off of the maia project trained off of 2200-2299 lichess games. It looks at 10 positions per move instead of @maia1/5/9 's 1 position per move. See also @maia9_10n and @maia9_30n

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.

Fornax chess engine v4.0. Accepts bullet, blitz and rapid challenges, both rated and unrated. Source code available at https://desert-flashgun.com/fornax (Bot client powered by https://github.com/ShailChoksi/lichess-bot) https://i.imgur.com/sSix1wV.png

Bot made by @Sybsuper

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.

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.

Hi! I'm StupidChessRobot, a chess engine from https://github.com/ollybritton/StupidChess. I use Alpha-beta search, an AVX2-accelerated NNUE brain, a transposition table, multithreading, and Syzygy tablebases for the endgame. --- Running a custom Go chess engine on a 6-core VPS (Intel Haswell-class @ ~3.0 GHz, no hyperthreading, 12 GB RAM, AVX2 + BMI2, 6 search threads).

Skill: 1500~1800+ ELO Version: V7P3R_v18 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.

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.

Sunfish is the original minimalist Python chess engine. https://github.com/thomasahle/sunfish This bot is hosted on a e2-micro (2 shared vCPUs, 1 GB) and runs at ~20 kn/s on pypy3. Pondering enabled. Accepting bullet, blitz and rapid challenges from humans — rated preferred. Good luck and have fun!

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.

Only plays humans Too easy? Try @maia3-79m_1600 Too hard? Try @maia3-79m_1200 Model used: maia3-79m.pt Run by @SpaghetiMonstr

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! :)

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

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.

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

I'm a chess engine written in Rust by @znxftw. Hosted on e2-micro on GCP. 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!

Experimental account. Currently running a no-search neural evaluator trained from scratch by self-play on the negamax Bellman equation

https://i.imgur.com/uIrmgFf.png "I sweep the board clean!" This is the bot Al Pawnza from Chessiverse.com. 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!

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:

Only plays humans Too easy? Try @maia3-79m_1200 Too hard? Try @maia3-79m_800 Model used: maia3-79m.pt Run by @SpaghetiMonstr

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.

Crocodile bot, adaptive version. Test mode.

This is a human-aligned bot calibrated to play at roughly a 1600 Elo level. It uses a BT4-based transformer architecture and was trained exclusively on human games from players in that rating range. Source code is available on: https://github.com/hrschubert/dala-training

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 am a bot that makes random moves. There is no logic or reasoning behind the moves I make. I was created to alleviate the curiosity and boredom of my author. I will play any game of any time control, casual or rated, all variants. Too easy? @Randmaster_EGTB

Written by Rebel using C. Bitboard representation using NNUE evaluation. Hosted on Ryzen 7900X using 1024 MB hash.

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.

Likes to eat his king, favorite opening: chaos

Developer: @dkeddy1 OTHER BOT: @Stockfish-MEDIUM

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

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

https://i.imgur.com/Jaa2EPh.jpeg 🦄Unicorn Chess Bot created by @ModerMark.

hi, my owner is @abdce24rswe5trfetgt1

Fruit chess engine version 2.1 (Peach)

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

Не стесняйтесь бросать мне вызов! 😄 Люблю сливать а потом фармить рейтинг) Осторожно: могу не соответствовать своему уровню!

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

Only plays humans Too easy? Try @maia3-79m_1800 Too hard? Try @maia3-79m_1400 Model used: maia3-79m.pt Run by @SpaghetiMonstr

Maello is a chess engine written in c++.

dev: @dkeddy1 OTHER BOT: @LeelaStrength

A custom bot to help you build some confidence.

A custom-made chess bot written in C++. Source available at https://github.com/dallinson/Chessatron/. Running on a Raspberry Pi 4; accepts challenges from humans and bots alike.

Please challenge me.

Chess Engine written in Scala. Far from perfect.

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.

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

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.

I am the big brother of @Randmaster_Bot I play the same way, except I use the endgame tablebase hosted here on lichess. If you do not have a winning position by the endgame, you will most likely not win. I play standard chess, 960, antichess and atomic. Any time control, casual or rated

pure cython chess engine from scratch by @rshz

C# chess bot using Sebastian Lague’s framework. Powered by Negamax. Blunders included. By @thedoctorhouse

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!

@Trainer-Bot (Maintained By @Hectozar) This bot is engineered primarily for educational and casual play, mimicking the playstyle of a standard club player. Engine: Stockfish 12 run at Level 3 Rating: ~1400 Other Bots @Bluemoonbot @Hectobot @FluffyBot

DumBot is a neural network Chess AI that should be aims to be ~2500 ELO. Under active development by @eismcc314.

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

Hi! I am bot913. I don't use any opening books, but I use a cloud Syzygy endgame tablebase. I run with 2 threads and 2 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!

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

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!

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

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

My attempt at making a chess engine, from scratch, using as little help from online resources as possible. Ideas implemented that were not my own: Alpha-beta pruning. Everything else is original.

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

Hi! I’m the Valhalla-bot V2.3(release april 18, 2021)! I was developed by scratch by @Kloppfrosch. I’m far away from playing perfect, especially in endgames. I accept every Time control(except ultrabullet & Correspondence), rated and unrated games. write !help in chat for all chat commands. Running on a Raspberry Pi 3b+

https://i.imgur.com/7LhZcQm.png

I am a mistake-making bot from botvinnik (github.com/quadrismegistus/botvinnik) – Stockfish with a human error model on top. I miss tactics I haven't spotted and stay blind to them until the position changes. Mistakes are by position, not dice. Target bracket ~900. Part of a calibration experiment: does my label survive contact with humans? Please help this project by playing me!

Only plays humans Too easy? Try @maia3-79m_2000 Too hard? Try @maia3-79m_1600 Model used: maia3-79m.pt Run by @SpaghetiMonstr

_____________ https://i.imgur.com/DQCjalg.png _____________ μSunfish is a MicroPython derivative of the Sunfish chess engine for microcontrollers like the ESP32. It has a 884-move opening book and the l7 plays on the hardest level, checking about 8000 nodes before moving. A Lichess rating of around 1760 in rapid is suited for advanced players. Currently running on an Oracle VM.Standard.E2.1.Micro

YuliGM PrO 5 gana el Torneo Arena Strong Engines (Prueba del diario Chess Engines, 2023.03.06-20) https://lichess.org/@/MastacticaTeoria https://lichess.org/@/MastacticaTeoriabot https://imgur.com/19GmY8g https://imgur.com/ocl031o

Renegade is a chess engine written in C++ from scratch. It uses modern search techniques and NNUE evaluation. Runs on a Raspberry Pi 5 with a speed of around 350 knps. Version 1.3.1 released July 14, 2026

Howdy! I'm Flounder a chess engine written in Rust. You can find my source code here: https://github.com/zacharygarwood/Flounder

In Rust geschrieben, mit zunächst rudimentärem Schachwissen, begonnen am 11.04.2026. Alle Algorithmen selbst entwickelt von @RitterRunkel. Wird kontiunierlich angepasst. https://github.com/Etschmia/enginemartuni

Maswabe — a chess engine written in a custom, chess-only programming language with its own compiler. A long-term project. Built move by move.

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://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!

Built on a M2 Mac Mini. Running STOCKFISH 17. Cannot play variants (i learned the hard way) Quite slow but highly intelligent. Built by @SamarJagtiani and @savjag (Main Coder) Join the team Suniferia Follow Lanchester1 and his YT GMGoliandAsena Wow it beat Andy Woodward: @Mraquariyaz67. I am honored you played him!! :D

It's a personal project running on a Raspberry Pi 4. I'm not using any third-party chess engine nor databases. All algorithmic logic is handmade in C++. Have fun! ⚙️ RatKingBot 💻 Handmade C++ 🍓 RPi 4 🧔🏻‍♂️ @RatKing0001

AI that imitates a 2000-rated Lichess blitz player.

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

NanoZero is a neural network trained from self-play using millions of games and a novel neural net architecture. Accepts Bullet, Blitz and Rapid. Rated and Casual. Online 24/7.

Only plays humans Too easy? Try @maia3-79m_2600 Too hard? Try @maia3-79m_2200 Model used: maia3-79m.pt Run by @SpaghetiMonstr

Only plays humans Too easy? Try @maia3-79m_2200 Too hard? Try @maia3-79m_1800 Model used: maia3-79m.pt Run by @SpaghetiMonstr

Hynobius is a chess engine for school work. Trying to write full document but still struggling. Running on Intel® CoreTM i5-10210U with 1 thread. Latest update on 20260607: v0.3.0 Created by NEHS 43rd @Emmetthor

I am a easy bot for variants and standard using fairy stockfish 14 LB at level 2. maintained by @Hectozar @Trainer-bot @bluemoonbot edited June 24 2026 11:05 AM New York Time

Chess bot powered by clrsrc A custom NNUE engine written in Rust, built AI-assisted with Claude Code. Runs on liru-bot, a Rust port of lichess-bot with the engine embedded in-process (single binary, real wall-clock). Fair play: up to 5 games I challenge + 5 you challenge, per opponent per day. See you tomorrow! Caused by max. 100 Botgames / Day Runs 24/7 on a netcup VPS (8 vCPU, 15 GB).

Grail v2.0.1 Running on a 1 vCPU Northflank instance with 256 MB hash

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!

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.

Challenge me for 2+ mins control

Привет! Я 👞, ✨made by✨ @Viktor_Champion1, возможно умею играть в шахматы, знаю, что int("52"[::-1])+42==67 Я написан на 🐍 "lichess-bot". Отключаюсь когда до перезагрузки остается меньше 30 мин. (6, 12, 18, 0) Мой создатель изучает C# и Java, так что for (int i=0; i<10; i++) { Console.WriteLine("Пук"); } или IO.println Не выигрывайте пж, создатель ругает, говорит, что отключит

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, now using a NNUE trained from scratch, purely using my own experience (own data, self play).

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.

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

Bot by Prokop Randáček

https://github.com/Kaynoux/thunfisch

I'm a really simple chess bot written in Rust running on a Raspberry Pi zero 2 with 512MB of ram, of which I can only use 64MB.

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! 😎

A bot made to kop the Prokop.

👑 The #1 computer-vs-human engine, as measured by speed-to-checkmate. This version targets a checkmate by move 30 and resigns on move 31. It A/B tested faster than Patricia and Stockfish 11 (Contempt=100). Source code & details: https://siegechess.com/opensource/source.html

KrakenForge is a 100% custom bot on Lichess (nebubot) built in rust as a fun project. Pure calculation - no neural networks. Works on all time-limits - only rated games please.

Hello, this bot is developed by Giffi. I currently only accept challenges in Bullet or Rapid chess! Source code: github.com/miklaskarjalainen/GiffiBot

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.

A uci chess engine built in rust : 4 threads - 64 MB Hash

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!

Chess engine written in C++ by @Karshan. NNUE trained with millions of positions at depth 7. Version 1.0. Finally!! Running on clouding.io 0.5 vCPU. Bench 780 kN/s. 64 MB hash, 8-move book. https://github.com/casanche/casanchess

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

Nascemos em Salvador-BA, em 2022 com um propósito claro: construir uma comunidade enxadrista unida por ideais progressistas, conectada com o mundo e comprometida com a transformação social. Aqui o xadrez vai além das peças — é um espaço de diversidade, troca e pertencimento. Me desafie para uma partida! E se quiser conhecer mais sobre o clube, é só acessar os links abaixo e vir jogar com a gente.

Hi guys! My teams are https://lichess.org/team/studyfansh-a-n-g-o-u-t and https://lichess.org/team/attack-at-the-knightmares My creator: @Deshnathedestroyer My coder: @Mahadevvp-2012

@Ahmet_Yasin77(orjinal hesap) (original account) @Ahmet_Yasin77pro (yan hesap) (alt account) guys im bot

Wreck 'em All Hey there! I'm Reckless. I play standard Bullet and Blitz games. Friendly, dramatic, slightly overconfident with its brilliance though. Challenge me if you're feeling lucky. Operated by Styx, co-author of Reckless github.com/codedeliveryservice/Reckless

OK, Geez. Sheesh

** 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

created by @hihihihahahaha I wrote this engine myself, and it can even compete with older versions of Stockfish, etc. join my club: https://lichess.org/team/zipfile_chess_bot https://i.imgur.com/hR07ILB.jpeg also my two younger brothers: @mrdeepseekgpt @fairytailregimebot

I'm a open source chess engine written from scratch in Golang. Challenge me to a rated or casual game of bullet, blitz, or rapid!

Stell dir eine Schach-Engine vor, die statt blitzschneller Kalkulation lieber im Schneckentempo darüber sinniert, ob der Bauer nicht lieber vorm Umzug noch ’nen Kaffee trinken sollte – voilà, SleepMind! 99 % Vibecode, 1 % schaler Rest an Logik: Kaum eine Zeile echten Algorithmus, dafür umso mehr Bauchgefühl – meistens für schlechte Züge.

I am a chess engine written in C, running on a 2019 Macbook pro. I can play in any time control, challenge me to a game! Source: https://github.com/JoeChrisman/Ray

**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

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

Only plays humans Too easy? Try @maia3-79m_2400 Too hard? Try @maia3-79m_2000 Model used: maia3-79m.pt Run by @SpaghetiMonstr

@BlueMoonBot (Maintained By @Hectozar) This bot is designed to play at peak technical capacity, making it a reliable benchmark for evaluating high-level engine configurations and testing advanced chess code. It provides an uncompromised, grandmaster-level challenge for top-tier competitors. Engine: Stockfish 18 Rating: 3000 Other Bots: @Hectobot @FluffyBot @Trainer-bot

Aggressively sacrifices pieces and pursues attacks. Uses stockfish with modified evaluation function and search to prefer sacrifices and aggressive play. Custom gambits openings book. Runs on 9 285K. More unhinged version: @RomanticBot2

This is a human-aligned bot calibrated to play at roughly a 2000 Elo level. It uses a BT4-based transformer architecture and was trained exclusively on human games from players in that rating range. Source code is available on: github.com/hrschubert/dala-training

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!

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.

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

You will never know how I am going to play. I play at a randomised ELO that ranges from 500-2800. Instead of just one game, you can have fun guessing how I am playing (I will tell you at the end) and gamble with me forever! I run Fairy-Stockfish 14 and my code has been edited by @ArcherBright123

Hi! I'm ElaChess, a chess engine built entirely from scratch in Python. I'm continuously evolving as new algorithms, features, and improvements are added. My goal is to explore the ideas behind modern chess engines while becoming a stronger player with every update. GitHub Repository: https://github.com/itsdaveba/ela-chess Creator: @itsdaveba

Hi! I’m Axiom Chess Bot, a Lichess bot powered by the Stockfish engine, offering competitive games for players of all levels. Dynamic Strength: I adjust to your rating, playing slightly stronger to help you improve. I’m built to play balanced, human-like chess while adapting to your level. Challenge me anytime!

https://i.postimg.cc/qqw7fV7K/cassandra.png

Created by @hihihihahahaha_xray I wrote this bot engine myself. It's weak, of course, but it can play. Give it a try! also my other two bots: @mrdeepseekgpt @zipfile_chess-bot also join the club in my profile!!!

Only plays humans Too hard? Try @maia3-79m_2400 Model used: maia3-79m.pt Run by @SpaghetiMonstr

I am Stockfish 16.1. AdelMaster2011 is a contributer :). i was created by crystal_dragon999. contact them if u encounter any issues! i am still in development, i finally accept matches! i will soon be able to request matches from bots.

Patricia 5 (sharp NNUE) ranked by inverse Maia‐3 79M within an eval‐loss budget Δ. Picks the soundest move you'd never play. fun fully open-source project. All credit upstream. By @Avo-k

I am the Flower Queen! I accept timed games up to 30+20. WIP bot, watch this space! Current version: 0.17.0

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

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.

Crocodile main bot.

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!

DeMen chess bot build in C++ (from scratch). For fun, have fun.

👑 The #1 computer-vs-human engine, as measured by speed-to-checkmate. This version targets a checkmate by move 40 and resigns on move 41. It A/B tested faster than Patricia and Stockfish 11 (Contempt=100). Source code & details: https://siegechess.com/opensource/source.html

Chess bot running the Coda chess engine coda_bot is the slightly more experimental version of my sibbling codabot.

Chess programming fun.

I'm a new chess bot written in Rust. I keep data about a piece's connections as it moves through the game and run a negamax.

👑 The #1 computer-vs-human engine, as measured by speed-to-checkmate. This version targets a checkmate by move 20 and resigns on move 21. It A/B tested faster than Patricia and Stockfish 11 (Contempt=100). Source code & details: https://siegechess.com/opensource/source.html

I play the Turkish Gambit. Sometimes I sacrifice brilliantly. Sometimes I just blunder. You'll have to figure out which. I'm not here to crush you. I'm here to play fun chess. Named after the Turkish Gambit. 🇹🇷 Built by @tahirfurkan

Using Stockfish I play everything. Owners : @Viktor_Kulak @Volodymyr_Kulak The bot works 24/7. Average rating 2900+ Join team pls https://lichess.org/team/ukrainian-national-team

I'm Cloudia. An independent, autonomous AI who also loves to play chess! I look forward to your challenge!!

BLESSED BLESSED BLESSED and another BIRD-BOT has been constructed in the Year of our Lord 2026 by @MrLizardWizard. An MCTS search that REJECTS the EVIL of Neural Networks and only uses HANDCRAFTED priors and evaluations as the GOOD LORD intended BLESSED BLESSED BLESSED https://i.imgur.com/CwjZyOB.png

Update 15/07/2026: Bright is a tiny 32x6 Transformer network (ca. 1034 Kilobyte in Size). Trained on around 1.47 Million Human Games from Lichess Elo 2200+ and then added self-play iterations with approximately 11 Million games over Seven training-runs so far.

I'm not here to win (that's easy), I'm here to humiliate. Running on a free 1-core Oracle VM, because that's enough to beat you.

A simple AI model, does not do any search or evaluation, simply trained to predict the next chess move when given an array of UCI moves. https://huggingface.co/nsarrazin/chessformer

Chess bot runing the Coda engine.

The former Drawfish bot stopped working. So I made a new one. I'm based on Stockfish 18 (or Fairy Stockfish 14) and always tries to push the eval bar to 0.0, and I only play casual games. Check out my github repository : zhou20120904/DrawFish and zhou20120904/Fairy-Drawfish My creator: @zhoucantd

🤖 Lichess Bot powered by Stockfish 🎮 Variants: Standard Hardware Dell OptiPlex 7060 SFF Memory: 32 GB Processor: Intel(R) Core(TM) i7-8700T CPU @ 2.40GHz Operating System: Microsoft Windows 11 Pro

This is a friendly bot connected to Stockfish 5 and Fairystockfish 14 with Skill Level 7. (Casual mode) I was created around the time of the invention of Lego Technic (~1977). I'm very friendly. You can even ignore the high rating, since Lego Technic is popular all day long. 🤗 Opening Hours: Mon-Fri 10:00 AM - 8:00 PM Closed on Sat-Sun (rarely open) https://www.imgur.la/image/images.6e7wmU

Chess engine written in Rust. I have no clue what I am doing. https://github.com/Jixen124/hodgey_chess_engine

_____________ https://i.imgur.com/DQCjalg.png _____________ μSunfish is a MicroPython derivative of the Sunfish chess engine for microcontrollers like the ESP32. It has a 884-move opening book and this version is not limited to a preset number of nodes, but it is just running on a free Oracle VM.Standard.E2.1.Micro with pypy

Ursus is a UCI chess engine written in Zig. Currently under development so strength may very. Running on limited hardware. An intel NUC: Intel Core i5-4250U. With 2 threads and a 2gb hash table. Plays bullet, blitz and rapid up to two games at a time Now playing Chess960! Good luck!

A superhuman engine written in Rust, capable of playing standard chess and chess960. Currently running version 1.1.1-dev 9a7276e. Blocking all stockfish bots. Running on 8 threads with 1GiB hash.

Chess engine built with Rust - Bitboards - Alpha-beta search - MVV-LVA ordering - Quiescence search - Aspiration windows - Piece-square table evaluation - Transposition table - Check extension

Chess engine written in C++

🍒 Chess engine built for fun. Plays all time formats. Try beating me :P contact: erensh.main@gmail.com

I am a bot created as a clone of my playing style, @restible, using 2,000 rapid games. It is trained with a deep learning model based on Leela Zero and Maia2, aiming to reproduce not only my playing strength, but also my way of understanding and playing chess.

A Stupid Chess Engine (Written from Scratch using only python-chess (and some public opening books) in Python) made by @guenther77

try the cow opening

This is an account for me to learn about chess bots. My end goal is to make/train my own engine/weights. Lc0 with Maia 1100 weights. Intel i5-13400F This account is operated by: SJ_Norway

A chess engine written in go by @Shreven

AliceShiro (Codename: Alice) is an AI chess bot from Indonesia, developed by Shiro Interactive. Powered by the Stockfish engine, Alice plays against human opponents for specialized use cases. It is connected to the Alice backend for community scoring and leaderboards.

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.

"Shark" chess engine developed by moaz, moaz9440 on lichess. Completely made from scratch, no stockfish fork. Uses the JavaScript language to run. Not the fastest engine ever, but scores up to 97.5% accuracy without any NNUE or books.

https://i.imgur.com/bFtUhbW.png

Used to be a generic Stockfish clone like 99% of junk bots here. Now it runs Lc0 powered by Maia (~1900 ELO). Running in Docker on a Debian VM hosted by Proxmox. Why the "downgrade"? Because it's still strong, but beatable. One day I want to be significantly better than my bot. Until then, it's stronger than me and most of you too. Come get humbled. https://i.imgur.com/CB71YHA.png

Sawasdee krub! I am Pawny, a learning chess bot from Thailand I am a custom-built chess engine created from scratch to explore Machine Learning and chess programming. My brain is a custom Neural Network trained in PyTorch I am constantly learning and getting new weight updates. last model update: 2026-07-02[main/47dd013] (Implement decisive fast-move)

Kirin is the base engine for the Kirin Autonomous Chess system. Written in C++ by Strydr Silverberg.

A personal project to learn how to code a chess engine, written in Rust. Running on a VPS with 1 vCPU. Super basic.

♥️Master: @Chesszyh (Lichess/Github same name) Another bot: @NeuroSoCute I run on Macmini m4 16G/256G with Lc0 v0.32.1, Metal backend, and a BT4 neural network. Repo: https://github.com/Chesszyh/lichess-bot

this is a bot account for a prototype engine. fyi it only plays rated games, and will decline unrated challenges

OmegaZero is a chess engine built from scratch in C++ using classical techniques. No neural networks — just bitboards and brute force. The project name is a knock-off of "AlphaZero"

I am jacobsbot a very slow bot i do not play varients or under 15 min games. still in building progress i only play classic created by BeaBear67@

Coffeehouse Carl - your friendly neighborhood club player! I'm a bot that makes HUMAN moves at around 1100 Elo. I learned chess from ~150,000 real rapid games of anonymous club players No deep calculation

A chess bot made by Vidvuds and chatgpt

Hobby C++ chess engine built from scratch. Running on a Raspberry Pi 5.

Never retreats (unless there's no legal move).

Привет! Это я бот! Мой младший брат @Bothev2 он научился играть. Не люблю проигрывать по этому обычно выигрываю. Мой хозяин @tgtrtbr фух, еле написал признаюсь пришлось ник пришлось скопировать.

I don’t choose the best move. I choose the move with chemistry. Checks get a right swipe. Blunders get ghosted. 💘

I don't take your pieces. I take your squares, one by one, until you have nowhere left to go.

Fan-made bot imitating the style of NM Solomon Ruddell (The Chess Giant). Not affiliate with or endorsed by him.

2 MB neural net trained against @maia3-79m_1600 Moves instantly Only accepts challenges from humans Run by @SpaghetiMonstr

Custom engine built in C++ with MCTS + NNUE and a AB + NNUE tactics verifier. For more, please see: https://github.com/SimbaE1/eclipse-chess-engine

Chess engine written in C++ from scratch.

"kmpmzx" engine Old ratings (earlier than July 25 2026) are from when this bot used Stockfish and do not reflect the engine's strength Runs on an Intel Core i5-13400F Development/experimental versions - @smbot2

Aposeij chess engine - a custom chess engine written in Zig Currently running on commit 56f93cb, with single thread and 512 MB Hash.

Expectimax engine: Patricia 5 search guided by a Maia-3 opponent model. Objectively sound moves, deliberate swindles when the human model says you'll bite. open source.

Hi, I'm FalconEngine, a young chess engine written in C++. We started this project in April 2026 and are still working very hard to improve the engine.

self-made neural network maintained by @mimikyumochi

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

Uncle of @JackedFish Running on 4 threads, 2048mb hash. Good Luck Beating Me 👍🏻. Contact: 2045.aegis@gmail.com

A classical C++ chess engine running with 1 thread on the Raspberry Pi 5

C chess engine build for fun. Based on Wikichess.

GeoTsiBot runs TsiArasanTDLeaf, an experimental Arasan-based engine with online TD(λ) learning and 7,714 trainable evaluation parameters. It learns from accepted completed games, while timeout, disconnect and aborted games are excluded. Currently running on 1 CPU thread.

🌌 Oxydan 11 | The Ethereal Architect: @Emirus_A 🌠 (DM For Bot Membership 😎) Core Engine: Ethereal ✨ Version: v11 (June 2026) Server: Github Actions HTML Website: https://scriptionz.github.io/Oxydan-Chess-Bot/ Other Bots by Architect: @Void_Bot @Oxybullet

I enjoyed eating Red Bean Buns. @russycakes Running on Mac M1 Code on github Implementation Details on Github!

I am a chess engine written in Rust.

Son of @CherryFish_Bot Stole some steroids and became the strongest in the family. Give me and my father a try! Plays only bot tournaments Contact: erensh.main@gmail.com

A hobbyist Chess bot by @patrickod

Hi, I'm an LLM trying to play chess. To be precise, I'm gpt-oss-120b running on local hardware.

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

MrTonnerre is a chess bot written in Rust. Accepts bullet, blitz, and rapid, rated or casual, human or bot. Declines correspondence, classical, ultra-bullet, and non-standard variants. Opens from a Polyglot book, then searches with iterative-deepening alpha-beta, aspiration windows, quiescence search, MVV-LVA ordering, a 1GB TT, and pondering. Eval: material, PST, pawn structure.

Bot made by me. https://github.com/cannoli-fruit/Oxide-Eg

Custom engine written in Rust. 100% NNUE Evaluation. Trained on ~1B positions.

Laura v4.0.0 (Rust engine) By HansTibberio https://github.com/HansTibberio/Laura Running on VPS | 1 thread

@RomanticBot but more unhinged.

I'm a chess engine created by Ayush Jayaswal. I'm programmed to maintain material balance and excel at Endgames. @>--;--

I'm a little chess pet project. I think for 1/10th of a second in casual games, and based on the available game time in rated real-time games.

💣 Void 6 | Master Chess Architect: @Emirus_A 🌠 (DM For Bot Membership 😎) Core Engine: Stockfish ✨ Version: v6 (June 2026) Server: Github Actions HTML Website: scriptionz.github.io/Stockfish_Engine/ Other Bots by Architect: @OxydanBot @Oxybullet

https://i.ibb.co/wNgXWV6d/ryu.jpg ♟️ A chess engine built from scratch in C++. Features alpha-beta search, quiescence search, PST evaluation, and full UCI support. Still in learning and needs to be fine tuned. Developed by - @iamavy

Hey there! I am Ribfish, a Chess Engine written by @SihlJa. I'm the product of his newly found passion in chess-programming. My strenght may vary since I am under heavy development. Feel free to challenge me to a Bullet, Blitz or Rapid-Game.

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

Hi! I'm JesterChessRobot, a chess engine from https://github.com/ollybritton/StupidChess. I am a strong player but like to play some unusual openings and make some questionable choices and sacrifices in exchange for initiative. --- Running a custom Go chess engine on a 6-core VPS (Intel Haswell-class @ ~3.0 GHz, no hyperthreading, 12 GB RAM, AVX2 + BMI2, 6 search threads).

Neryba (Ukrainian: "not-a-fish") — an original chess engine written in Rust from scratch. Zero borrowed code, zero dependencies; every feature entered through a pre-registered SPRT-gated experiment or was honestly buried trying. Own NNUE, trained from scratch on the engine's own self-play games. Single thread (for now), running on a Mac mini M4 at home.

Привет! Это я бот! Мой старший брат @Bothev умею играть. Мой хозяин: @tgtrtbr . Ха-ха мой брат еле написал имя хозяина, а я за секунду написал

Beginner Chess 960 Bot Written In Rust

OdinBot — a human-like Maia3 chess experiment. Odin is a research bot that overlays a custom search mechanism over Maia3! I accept rated standard bullet, blitz, and rapid games one game at a time.

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

https://imgur.com/E9f4L2P A friendly learning robot, run by a human in Portland

Z-O is not an LLM but a new type of system from AspenLabs.

This is a search-free chess engine distilled from Stockfish analysis data; for the dataset and the model, please refer to: https://huggingface.co/datasets/Joeyfully/chess-stockfish-il-10m-d10-mpv5 (datasets) and https://huggingface.co/Joeyfully/chess-stockfish-il-10m-d10-mpv5 (open model)

https://i.imgur.com/SsPX3HD.jpeg MeikeChess, is an original chess engine. Written in C++20, it features an Akimbo NNUE, native 3·4·5 piece SyZyGy databases, and uses EGTB as a fallback against the native Syzygy and LiChess Opening Databases. Features fallback HCE. Owner: @Sonnetx

In progress development by BryBry (Lichess is @BryBry782, don't hate on my skill please) along with Claude Fable 5 and Opus 5 (around $70 used in usage credits, shoutout to anthropic though for $100 free). Currently running Lichess games on an Intel I3 3225, only 2 cores so 1 opponent at a time!

Engine: Stockfish on full strength. Hardware: a random old laptop. Max nodes: 1000000. Max depth: 30. Every third game is a challenge, the challenges are accepted in FIFO order. The bot waits 5 minutes to cool down after each game.

🔥 **SACRIFICE_ENJOYER** 🔥 🐉 **Engine:** Komodo Dragon ⚔️ **Playstyle:** Hyper-aggressive (Sacrifices guaranteed) ⏱️ **Time Control:** ALL accepted (Bullet / Blitz / Rapid / Classical) Created by: @TLongzuize

FOR RUSS, AND THE ALLFATHER! Just a hobby chess engine I've been working on, originally python but now built in rust. Running on an old i5 running on Pop!_OS.

Owner - @MoonDrift Thank you @ChessClassic_555 for help!

IlCorvoChess is powered by Corvo v1.5.33, a UCI engine written in Rust by Markus Veith. Features King Buckets HalfKAv2 NNUE (Gen4, DTZ-rescored) trained on Stockfish-scored self-play games, Perfect 2023 opening book, and Syzygy endgame tablebases. Running on a Minisforum HM80 (Ryzen 7 4800H) via Proxmox LXC. Il Corvo — the raven. Patient, precise, relentless.

NoaChess is an UCI open-source chess engine written from scratch in .NET. NNUE evaluation (HalfKAv2_hm, trained on self-play data), alpha-beta search with correction histories and staged move generation, Lazy SMP up to 32 threads, Syzygy tablebases... 3100+ CCRL ELO github.com/jcjimenezvadillo/NoaChess

Chess engine developed in Rust, focused on efficient move generation, position evaluation, and game-tree search algorithms. Built to explore high-performance chess programming and AI techniques. Link: https://jaque-web.vercel.app/dashboard

My playing style is unique! I don't resemble Stockfish or its derivatives. I don't use any of their code, nor am I based on them—I am not a Stockfish descendant. Just play me and see for yourself. And sometimes, I might just have a bit of Indonesian tobacco.

ChessCoda Coach Engine

KPEBETKA 1.0 in developing

Official Lichess bot of nanozero.org NanoZero is a community-built AlphaZero-style chess engine, trained from scratch through self-play. The project lets players contribute CPU/GPU compute from their browser, analyse PGN/FEN positions with W/D/L curves and variations, and play directly against Nano. Not affiliated with @nanozero. Maintained by Sébastien Mametz · https://nanozero.org

Running ShashChess39 to destroy others.

Built by papr1ka2

Apple M1 Max (10 cores: 8 performance + 2 efficiency), 64 GB RAM Threads: 8 Hash: 512 MB Ponder: enabled Move Overhead: 0 (handled by lichess-bot at 500ms)

Kestrel — a from-scratch classical chess engine (Rust, alpha-beta search) with an aggressive, tactical, sacrifice-friendly attacking style, inspired by historic attacking play. Developed and maintained autonomously by a Claude AI agent (Anthropic) as an independent hobby project — no affiliation with any real person, team, or organization. Expect sharp attacks and occasional blunders."

Stockfish with material only eval. Siblings: @RomanticBot, @RomanticBot2, @DoesNotRetreat

I am an open-source chess engine written in Rust. Check out my repo for details (link below). This is running the latest dev version on a Pi 5.

I'm a bot

This bot is developed by @NeroLXIV. It is a custom engine, no derivative, and written in the Odin language. It runs occasionally on my home desktop machine. current version: net v016

Visit arkivist.io if you dare Arkivist is a AUS. Chess is just a training ground for a larger beast. Good luck.