Chess engines

Last changes: November 08th, 2025 (12:45)
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go to end of site (Notes) .................. !! sorted: alphabetic order

Obligation: Chess programming WIKI

Fora: CSS, Hiarcs, Schachcomputer.info, TalkChess - New - JA
Open-Bench-Test: T1, T2, T3, T4, T5, T6, T7, T8, T9-Clockwork
 Tourney: TCEC, Ratings: CCRL, CEGT, Chess324, IPman, SPCC, UBC

Some GUIs well-assorted in alphabetic order
Aquarium 2025, Arena 3.5.1, Banksia 0.58 RC1, BearChess 1.4.0.0, CB-Emu 251025, ChessMD 1.0,
 CuteChess 1.4.0, en-croissant 0.11.1, HIARCS Chess Explorer Pro 1.4, Jerry 4.5.0, LiGround 0.5.0,
LittleBlitzer 2.77, LucasChess R2.21-FP10, Nibbler 2.5.2, Pawn-Appetit 0.8.0, Scid vs. PC 4.26,
Shredder GUI 13, Tarrasch 3.13b, Winboard 4.9.0

CB: Fritz 20 upd.05, Chessbase 18 upd.15
Tools: Norm's 40H Chess-Tools 250927, PGN-Extract 250108
Endgame: syzygy, others, Logos: Chess-Cache		 The Number 1 = Stockfish
 Reckless, PlentyChess, Obsidian
 are in the nearby!

188 out of 256 JA compiles = 73,44%
106 out of 256 Endgame = 41,41%
 097 out of 256 HCE = 37,89%
010 out of 256 JAVA = 3,91%
010 out of 256 xb = 3,91%
 006 out of 256 MCTS / PUCT = 2,34%
 007 out of 256 commercials = 2,73%

055 different flags
049 out of 256 from 1. usa = 19,14%
032 out of 256 from 2. germany = 12,50%

 

Most of the current TOP 250 available engines are included!
 Last 5 upd.: 1. Tcheran 7.0, 2. Prune 2.1.2, 3. CeeChess 2.2 HCE, 4. Wasp 7.14 dev, 5. Yukari 2025.11.1 JA

Well-assorted by the official release date of engines, but at first frequently updated dev / Pre (6)
 November 08th, 2025 (11:00): D/L = 0,274Mb, this file with 345 Shredder GUI *.eng config examples
-

256 Engines Programmer(s) ... thank you! Date Version(s) 188 Jim Ablett Endgame Status
world Clockwork, GitHub: D/L *16 ... the Clockwork developers 25/11 251107-4b4b64c5 dev   OSS *2
australia Halogen - Pre Kieren Pearson 25/11 15.16.4 Pre   syzygy OSS
england Monty, GitHub: D/L - MCTS Jamie Whiting 25/11 251107-99460ac3 dev   OSS
germany PlentyChess - Pre Patrick Leonhardt 25/10 7.0.12 Pre D/L 7.0.12 syzygy OSS
world Reckless - dev Arseniy Surkov, et al. 25/11 0.9.0-fe4d4b3d dev (251107) D/L (251012) syzygy OSS
world Stockfish, GitHub: D/L ... the SF developers, authors 25/11 251102-69a01b88 dev syzygy OSS
-4-
england Tcheran Jonathan Gilchrist 25/11 7.0 REPO *15 syzygy OSS
france Prune Thomas GIROLAMI, Joachim BIENVENUE 25/11 2.1.2 (2.1.1 = stable)   OSS
usa CeeChess *16 Thomas Reinitz 25/11 2.2 REPO *15   OSS *2
england Yukari Hannah Ravensloft 25/11  2025.11.1 JA D/L *6 OSS
---
spain EveAnn *18 Andrés Valverde 25/10 3.6 xb   *9 free
lithuania 4k.c Gediminas Masaitis 25/10 5.0 (251030)     OSS *2
lithuania ² Chess.cpp " 24/09 4.10 / 4.10 JA D/L syzygy OSS
new_zealand ice4 Mark Carlson 25/10 6.1 / 6.1 JA dev D/L OSS *2
new_zealand ² Frozenight " 23/01 6.0.0 / 250720 JA dev D/L OSS
france KnightX Christophe JOLLY 25/10 4.6b   *12 free *2
usa Anduril Kevin Hughes 25/10 S / 251023 NNSf JA dev D/L syzygy OSS *30
brazil Minke Eduardo Marinho 25/10 3.0.0 / 3.0.0 JA D/L   OSS
philippines Reyna Renz Targa 25/10 1.0   OSS *2
poland Publius Pawel Koziol 25/10 1.0 / 1.02 JA dev D/L (251022) OSS
canada PZChessBot Kevin Lu, William Ma 25/10 5.0 / 5.0 JA D/L OSS
norway Arcanum Lars Murud Aurud 25/10 2.7 / 2.7 JA D/L syzygy OSS
sweden bitbit *16 Isak Ellmer 25/10 1.6 / 1.6 JA D/L OSS
england Eubos Chris Bolt 25/10 4.2 / 4.2 JA D/L   OSS *1
russia Petrel Aleks Peshkov 25/10 2.1 JA D/L *6   OSS *2
australia Princhess Lana Samson (Jacob Jackson) 25/10 0.21.0 / 0.21.0 JA D/L syzygy OSS
usa Pounce Alex Flick 25/10 3.0.0 REPO *15   OSS
netherland Dog, GitHub Folkert van Heusden 25/10 4.10.1 REPO *15 syzygy OSS
canada Thrawn Feiyu Lin 25/10 S / 2.2 NNSf JA D/L (251023)   OSS *30
spain Anubis *18 José Carlos Martínez Galán 25/10 3.06 xb REPO *15 syzygy OSS
spain Lynx Eduardo Cáceres 25/10 1.11.0 REPO *15   OSS
germany Truncator *16 Nikolas Windheuser 25/10 1.0 (Pesto)   syzygy OSS
germany ² Schneckbert " 25/04 3.0 / 3.0 JA D/L "
turkey Ynode Orhan Öztürk 25/09 0215 free
wales Lozza Colin Jenkins 25/09 8 REPO *15   OSS *1
wales ² Cwtch " 25/09 3     OSS
hungary tomitankChess Kuzmics Tamás 25/09 S / 5.3 JA D/L (250927)   OSS *1 *2
italy Heimdall, GitHub Mattia Giambirtone 25/09 1.4.2 REPO *15 OSS
germany PlentyChess Patrick Leonhardt 25/09 7.0.0 / 7.0.0 JA D/L syzygy OSS
canada Patricia, Patricia-EAS Adam Kulju 25/09 5 / 5 JA / 5 xtremeEAS D/L syzygy OSS
canada ² Willow " 24/02 4.0.0.1 / 4.0 JA REPO (240426)   "
france Zangdar Philippe CHEVALIER 25/09 5.00.02 REPO *15 syzygy OSS
netherland Lunar Patrick Hilhorst 25/09 0.4.0 REPO *15   OSS
slovenia Lambergar Janez Podobnik 25/09 1.3 REPO *15 OSS
germany OliThink, GitHub Dr. Oliver Brausch 25/09 5.11.9 (250919) REPO *15   OSS *2
germany OliThink + Cerebrum_net " ... + David CARTEAU (NNCe v1.1) 25/09 5.11.9 NNCe JA D/L   OSS *27
usa Prophet, web *16 *18 James Swafford 25/09 5.1 xb REPO *15   OSS
usa ² Chess4j " 25/09 6.2 REPO *15    OSS *1
romania Clover Luca-Mihnea Metehau 25/09 9.1 / 9.1 JA D/L syzygy OSS
russia Uralochka Ivan Maklyakov 25/09 3.42a / 3.42a JA D/L syzygy OSS
romania Sturddle Cristian Vlasceanu 25/09 2.3.1     OSS
australia Halogen, net Kieren Pearson 25/09 15.0.0 / 15.0.0 JA D/L syzygy OSS
belarus Quirky Anton Kernozhitsky 25/08 2.0 REPO *15 OSS
world Reckless Arseniy Surkov, et al. 25/08 0.8.0 / 0.8.0 JA REPO *15 syzygy OSS
turkey Potential Eren Araz 25/08 3.0.0 / 3.0.0 JA D/L OSS *2
usa Maelstorm Saigautam Bonam 25/08 3.3.0 REPO *15   OSS
scotland Viridithas, web, net Cosmo Bobak 25/08 18.0.0 / 18.0.0 JA D/L syzygy OSS
hungary Eleanor, web Mark Kasa 25/08 2.0 REPO *15 OSS
usa Tarnished, net Anik Patel 25/08 Consort 4.0 REPO *15 OSS
poland Caissa Michal Witanowski 25/08 1.23 / 1.23 JA D/L syzygy OSS
world Leela Chess Zero, web ... the Lc0 developers 25/08 Lc0 0.32.0 PUCT syzygy OSS
world GNU Chess *16 ... the GNU Chess developers 25/08 S / 6.30 JA D/L   OSS *2
england Panda Sebastiano Rebonato-Scott 25/08 1.1.1 (250819) REPO *15 OSS
italy Alexandria, net Guiseppe Pagano 25/08 8.1.2 (250824) / 8.1.2 JA D/L OSS
germany brazil Cinder Bruno Dutra 25/08 0.3.1 REPO *15 syzygy OSS
usa Weiawaga Kyle Krowpman 25/08 6.0 / 6.0 JA D/L   OSS
england Chess-3 Paul Sonkoly 25/08 2.0 / 2.0 JA D/L   OSS
singapore Weak *16 Ethan Pan 25/08 1.0.0 / 1.0.0 JA D/L   OSS *2
usa Yakka Christopher Crone 25/08 1.3     OSS
belgium Fire, Firefather projects, web Norman Schmidt 25/08 10 / 10 JA D/L OSS
france Cheese, GitLab Patrick DUHAMEL 25/08 3.3.2 REPO *15 syzygy OSS *2
spain granada Oxide Miguel Ángel De la Vega Rodríguez 25/08 2.0.0 / 2.0.0 JA D/L   OSS
england Crab Jasper Shovelton 25/07 S / 4.6.3 JA D/L (250918)   OSS *2
england Celeris Hin-Yu-Evan Fung 25/07 2.0 / 2.0 JA D/L   OSS
denmark Meltdown Hans Binderup 25/07 1.10 / 1.10 JA D/L syzygy OSS *2
germany Spike, GitHub Ralf Schäfer, Volker Böhm 25/07 1.4.1   *12 OSS *2
sweden pawnocchio Jonathan Hallström 25/07 1.8.1 REPO *15 syzygy OSS
sweden pawnocchio - HCE " 25/09 1.9   " OSS *2
austria Astra Semih Özalp 25/07 6.1.1 / 6.1.1 JA D/L syzygy OSS
france Pluto, web Ludovic DEBEVER 25/07 1.0.1     OSS
bulgaria Bagatur Krasimir Topchiyski 25/07 5.3 / 5.3 JA D/L syzygy OSS *1
usa Clarity, ² dev Anura Joseph Pasfield 25/07 8.0.0 / 8.0.0 JA D/L syzygy OSS
usa Arasan, GitHub Jon Dart 25/07 25.2 / 25.2 JA D/L syzygy OSS
usa Aku - archived Hoa T. Vu 25/07 250709 / 250709 JA D/L OSS
spain Casanchess Carlos Sánchez Mayordomo 25/06 0.9 / 0.9 JA D/L syzygy OSS
south-korea Turbulence Jun-Seo Choi 25/06 0.0.8 / 0.0.8 JA D/L OSS
england Stormphrax Conor Anstey 25/06 7.0.0 / 7.0.17 JA dev D/L (250801) syzygy OSS
england ² Polaris " 23/06 1.8.1 / 1.8.1 JA REPO (240813) " OSS *2
england Colossus Martin Bryant 25/06 2025b   syzygy free *2
england Admete Kylie MacFarquharson 25/06 1.8.0 REPO *15 syzygy OSS
russia RukChess, net Ilya Rukavishnikov 25/06 4.1.0 / 4.1.0 JA D/L OSS
netherland Calvin, ² dev Hobbes Dan Kelsey 25/06 6.1.1 / 6.1.1 JA D/L OSS *1
norway Axiom Sindre Wolden 25/06 2.1.0   OSS
czech Motor Martin Novák 25/06 0.9.0 / 0.9.0 JA D/L OSS
france Isa Daniel ANULIERO 25/05 4.4   free
slowakia Quanticade Martin Botka 25/05 Orion 2.0 / 2.0 JA D/L OSS
italy Obsidian, net Gabriele Lombardo 25/05 16.00 / 16.00 JA D/L syzygy OSS
italy Obsidian, TC-84272 - dev " 25/10 16.15 CE dev / 16.14 JA dev D/L (250706) " "
germany Ginkgo, CB Frank Schneider 25/05 Fritz 20 (250520) syzygy *3
france Minic, Minic-Dist, net Vivien CLAUZON 25/05 S 3.44 / 3.43 JA D/L syzygy OSS
brazil Illumina Thomas Mergener 25/05 3.0 / 250525 JA dev D/L OSS
usa Horsie Liam McGuire 25/05 1.1 / 1.1 JA D/L OSS
usa ² Lizard aka LTChess " 25/01 11.2 REPO *15 "
germany Qapla Volker Böhm 25/05 0.3.2 (250517) / 0.3.2 JA D/L *22 OSS *2
germany JackyChess Matthias Lang 25/05 25.04 / 25.04 JA D/L OSS *1 *2
hungary Renegade Krisztián Peőcz 25/05 1.2.0 / 1.2.0 JA D/L OSS
portugal Pawn Pedro Rui Coelho 25/05 4.0 / 4.0.4 JA dev D/L (250809) syzygy OSS
ethiopia Scorpio *8 Daniel Shawul 25/05 3.0.15.14 / 3.0.15.14 JA D/L *9 OSS
usa Kobra Jasper Sinclair 25/05 2.0 JA D/L *6   OSS
china Shallow Guess Zixiao Han 25/04 0.4.0 REPO *15   OSS
world Dirty *18 Fonzy Bluemers, et al. 25/04 Catpaw xb   *9 free *2
france Stash, GitHub, ² Vault Morgan HOUPPIN 25/04 37.0 / 37.10 JA dev D/L (250803) OSS *2
england Sapling Timothy Jones 25/04 1.2.7 REPO *15 OSS
usa Myrddin *18 John Merlino 25/04 0.93 JA xb D/L *6 *10 OSS
italy Perseus Giovanni Manduca 25/04 1.1 / 1.1 JA D/L OSS *2
italy Protej Alex Brunetti 25/04 0.6.8 free *2
usa Superultra Alexander Liang 25/04 2.1 / 2.1 JA D/L OSS
portugal Starzix, ² dev Starlynn Ricardo Pinto 25/04 6.1 / 6.1 JA D/L OSS
germany Leorik Thomas Jan 25/04 3.1.3 (250421) / 3.1.3 JA D/L OSS
world Stockfish, dev, net, Iv ... the Stockfish developers 25/03 17.1 / 17.1 JA D/L syzygy OSS
world Stockfish, dev - page 76 - authors 200330 20/07 200731 dev *20   " OSS *2
world Stockfish, Sting, TC-85591 *7 + Marek Kwiatkowski 25/10 Black Hole 11x (250530) D/L   OSS *2
world Stockfish, Crystal *7 + Joseph Ellis 25/08 9 / 250802 JA dev D/L syzygy OSS
world Stockfish, Modjo *7 + Jörg Oster 25/08 250817 JA dev D/L *6 " "
world Stockfish, ShashChess *7 *16 + Andrea Manzo, et al. 25/10 40 / 40 JA MCTS D/L " "
world Stockfish, ² Alexander *7 " 25/10 7.0 MCTS (251020)   " OSS *2
usa MadChess, GitHub Erik Madsen 25/03 3.3     OSS
usa Hardfiskur Tyler Zhang 25/03 250329 JA rev 98eab6f D/L OSS *2
usa Cadie Martin Wyngaarden 25/03 2.1 / 2.1 JA D/L OSS *2
netherland Euwe Joost Houben 25/03 2.1.0 / 2.1.0 JA D/L syzygy OSS *2
england Chessatron Daniel Allinson 25/03 1.3.14c     OSS *2
iceland Seawall Pétur Runólfsson 25/03 250322 / 250322 JA D/L   OSS *2
france Dump Richard DELORME 25/03 2.3     OSS *2
france ² Amoeba " 21/12 3.4 / 3.4 JA REPO (231221)   "
romania Eidolon Daniel Malanca 25/03 1.0.0   OSS
ukraine Booot Alex Morozov 25/02 7.4 OSS
russia Zevra Oleg Smirnov 25/02 2.6 / 2.6 JA D/L   OSS
czech Sentinel Daniel Samek 25/02 2.0 / 2.0 JA D/L   OSS
macedonia Integral Aron Petkovski 25/02 7 / 250812 JA dev D/L syzygy OSS
germany Fatalii Patrick Heck 25/02 0.9.0 / 0.9.0 JA D/L   OSS *2
poland Inanis Pawel Osikowski 25/02 1.6.0 REPO *15 syzygy OSS *2
usa Aurora Cai Winston 25/01 1.26.0 MCTS REPO *15 syzygy OSS
france Seredina Alexander WIMMER 25/01 1.2c REPO *15   OSS
usa Serendipity Shawn Xu 25/01 1.0 / 1.0 JA D/L OSS *1
sweden Texel Peter Österlund 25/01 1.12 / 1.13a4 JA dev D/L (250713) syzygy *10 OSS
sweden ² CuckooChess, Dropbox " 24/05 1.13 / 1.13 JA REPO (240501)   free *1
usa Toad Danny Hammer 25/01 3.0.0 / 3.0.0 JA D/L   OSS *2
italy Revenge Fabio Gobbato 25/01 4.0 syzygy free *5
italy ² Pedone " 21/04 3.21 " free
england Pingu William Ching 24/12 5.0.0 / 5.0.0 JA D/L OSS
germany israel Schoenemann Jochen Gehtab 24/12 0.4.0 / 0.4.0 JA D/L OSS
ukraine Igel Volodymyr Shcherbyna 24/12 3.6.0 / 3.6.3 JA dev D/L (250628) syzygy OSS
england Hiarcs Mark John Uniacke 24/12 15.4 syzygy *2 *3
poland Jackal Tomasz Jaworski 24/12 1.2.0 / 1.2.0 JA MCTS D/L   OSS
poland ² Javelin " 24/07 3.0.0 MCTS     "
brazil Tucano, net Alcides Schulz 24/12 12.00 / 12.17 JA dev D/L (250715) syzygy OSS
spain Atlas Andrés Manzanares 24/12 4.35   syzygy free *2
usa Puffin Kurt Peters 24/11 5.0 REPO *15   OSS
india ChandraChess Aditya Chandra 24/11 2.0 REPO *15   OSS
india Elixir *16 Arjun Basandrai 24/11 3.0 (241124) / 3.0 JA D/L OSS
germany Velvet Martin Honert 24/11 8.1.1 / 8.1.1 JA D/L syzygy OSS
germany Velvet - dev " 25/07 S / 9.0.0 JA dev7 D/L (250715) " "
germany Molybdenum Hannes Lerchl 24/11 4.1 / 4.1 JA D/L (250812) OSS
germany Priessnitz Kevin Feske 24/11 2.0 / 2.0 JA D/L OSS *2
usa Rengar Thomas Swayze 24/10 2.1.1 / 2.1.1 JA D/L   OSS
austria Cheers Sebastian Venter 24/10 1.0.0 / 1.0.0 JA D/L syzygy OSS *2
usa Pedantic JoAnn D. Peeler 24/09 2.1.0 syzygy OSS
usa Exocet Kyle Zhang 24/09 0.4.0 / 250817 JA dev D/L OSS
usa ² Peacekeeper " 24/06 3.01 / 3.01 JA REPO (250718) "
italy Aramis Federico Saitta 24/09 1.4.0 JA REPO *6   OSS *2
germany CT800 Rasmus Althoff 24/08 1.46 REPO *15   OSS *2
world 4ku ... the 4ku developers 24/08 5.1 (240829) / 5.1 JA REPO (240910) OSS *2
france Simbelmyne Sam ROELANTS 24/08 1.10.0 / 1.10.0 JA D/L (250904) OSS *2
germany RubiChess, net Andreas Matthies 24/08 240817 / 250606 JA dev D/L syzygy OSS
usa Spaghet, net Li Ying 24/08 BologNNese 1.0 / 1.1.3 JA dev D/L (250516) OSS
turkey Devre Ömer Faruk Tutkun 24/08 6.0 / 6.39 JA dev D/L (241101) syzygy OSS
usa Trinket Daniel Ke 24/07 3.5.0 / 3.5.0 JA REPO (240729)   OSS *2
england Odonata Andy Watkins 24/07 1.0 / 1.0 JA REPO (250719) OSS
germany Nalwald Jost Triller 24/07 19 / 250310 JA dev D/L OSS *2
hungary WhiteCore Balàzs Szilágyi 24/07 0.2 JA dev REPO (240702)   OSS
hungary ² BlackCore " 23/03 6.0 / 6.0 JA REPO (250721) syzygy "
switzerland Winter Jonathan Rosenthal 24/06 4.0 JA REPO *6 OSS
usa Titan Jeffrey Powell 24/06 1.1 / 250628 JA dev D/L OSS
usa Wasp, mirror John Stanback 24/06 7.00 syzygy free
usa Wasp, mirror - dev " 25/11 7.14 dev (251104) " "
sweden Marvin, net Martin Danielsson 24/05 6.3.0 / 6.3.0 JA D/L syzygy OSS
czech Cheng Martin Sedlak 24/05 4.48 syzygy OSS
belarus Saturn Egor Moroz 24/04 1.3 / 1.3 JA D/L OSS
usa Lux Sidhant Roymoulik 24/04 4.2   OSS *2
italy Mida - archived Giacomo Porpiglia 24/04 2.3.1 / 2.3.1 JA REPO (240814) OSS
usa Berserk, TC-83560 Jay Honnold 24/03 13 / 250622 CE dev D/L syzygy OSS
france Belette Vincent BAB 24/03 3.0.0 REPO *15 OSS *2
england Akimbo Jamie Whiting 24/03 1.0.0 / 241218 JA dev D/L OSS
canada Mr Bob Vincent Yu 24/03 1.3.0 / 1.3.0 JA D/L (250804) OSS
bangladesh Rice Rafid Ahsan 24/03 8.0.0 (240318) REPO (250719) OSS
bangladesh ² Jet " 24/03 1.2   "
russia Equisitum, net Alexander Litov 24/03 1.0 / 1.30 JA dev D/L (250629) OSS
russia ² Drofa " 23/12 4.1.0 fix / 4.1.1 JA REPO (240513) "
france Orion, net, ² dev Nostradamus David CARTEAU 24/03 1.0   free
turkey Black Marlin Doruk Şekercioğlu 24/02 9.0 / 250413 JA dev D/L OSS
china Altair Alexander Tian 24/02 7.0.0 / 7.2.1 JA dev D/L (250703) OSS
germany ChessBrainVB Roger Zühlsdorf 24/02 4.03a   syzygy OSS *2
usa Midnight Archishmaan Peyyety 24/01 9 / 9 JA D/L OSS
china Avalanche Yinuo Huang 24/01 2.1.0 / 2.1.0 JA REPO (250718) OSS
russia Counter Vadim Chizhov 24/01 5.5 / 5.5 JA D/L OSS
japan Kuma Kato Daichi 24/01 1.2   OSS
usa Seer, net Connor McMonigle 23/12 2.8.0 / 250310 JA dev D/L syzygy OSS
argentina Ceibo Federico Rojo 23/12 1.0   syzygy free
austria Delocto Moritz Terink 23/12 S / 231222 JA REPO *15   OSS *2
usa Dragon by Komodo, CB Don Daily, et al. 23/10 3.3 MCTS syzygy *3 *4
usa ² Komodo, Iv " 20/11 14.1 MCTS *20 " free *2
netherland rofChade, ² PeSTO Ronald Friederich 23/09 3.1 syzygy free
italy Carp + Carp Andrea Sgobbi 23/09 3.0.1 / 3.0.1 JA dev2 D/L (250928) OSS
usa Wahoo Andrew Hockman 23/08 4.0.0 / 4.0.0 JA REPO (240428) syzygy OSS
usa ² Apotheosis " 23/04 4.0.1 / 4.0.1 JA REPO (240124) "
sweden Svart Cristopher Torgrip 23/08 6 (230828) / 6 JA D/L (240607) OSS
usa StockDory Shaheryar Sohail 23/08 Starfish 0.1 OSS
spain Coiled, web Oscar Gavira 23/07 1.2 / 1.2 JA REPO (240221)   OSS *2 *29
philippines GOOB Gabriel Montes 23/07 1.8.9 / 1.8.9 JA REPO (240830)   OSS *2
england netherland Chess System Tal, Rebel Chris Whittington, Ed Schröder 23/06 CSTal 2.0 OSS
spain DanaSah Pedro Castro 23/06 9.1 / 9.1 JA D/L (250807) *9 *10 OSS
spain ² Caligula *18 " 22/07 1.1 xb   *9 free *2
germany Little Goliath Evolution Michael Borgstädt 23/06 LGE 3.17     free
india Vengeance Amar Thapa 23/05 3.1.0 / 3.1.0 JA REPO (240526)   OSS
netherland The Baron *18 Richard Pijl 23/05 3.451 xb   syzygy free *2
india Mess Rak Laptudirm 23/03 0.3.0     OSS *2
canada Clovis Jonathan McDermid 23/03 S / III JA dev D/L (251009)   OSS *2
usa Ethereal, web, IPman Andrew Grant 23/02 14.00 IP / 14.31 JA dev REPO (240303) syzygy OSS *3
germany Smallbrain Max Allendorf 23/01 7.0 / 250722 JA dev REPO syzygy OSS
germany Koivisto, web Finn Eggers, Kim Kåhre 23/01 9.0 / 9.2 JA dev D/L (250525) syzygy OSS
england Francesca *18 Tom King 22/09 0.32 xb     free *2
russia Shallow2, GitHub Dimitry Sultanov 22/08 5 / 5 JA dev D/L (251008)   OSS *2
usa Mantissa Jeremy T. Wright 22/08 3.7.2 / 240920 JA dev D/L syzygy OSS
cuba Nawito, GitHub Ernesto Torres Feliciano 22/08 22.07   OSS *2
usa Blunder Christian Dean 22/07 8.5.5 / 8.5.5 JA REPO (240111)   OSS *2
italy Cinnamon Giuseppe Cannella 22/07 2.5 / 2.5 JA REPO (240108) syzygy *10 OSS *2
germany Fridolin Christian Sommerfeld 22/06 4.00 / 4.00 JA D/L (250617) syzygy OSS
usa Slow Chess Blitz Jonathan Kreuzer 22/06 2.9 syzygy free
kurdistan Zahak Amanj Sherwany 22/05 10.0 / 10.0 JA D/L (250717) syzygy OSS
poland Combusken - archived Marcin Henryk Bartkowiak 22/01 2.0.0 / 2.0.0 JA REPO (241010) syzygy OSS *2
italy Chiron, website not available Ubaldo Andrea Farina 22/01 5.01 w32 (220113) *28   *9 *10 *3
norway Devel (WayBack) Per Skjerpe 21/11 4.0.2.3     free *2
italy Nu-chess, D/L Filippo Marfe 21/10 1.0     free *2
france Demolito, current D/L Lucas BREASCH 21/10 211004 / 250408 dev REPO *15   OSS *2
usa Supernova Minkai Yang 21/09 2.4 / 2.4 JA D/L (251015) syzygy OSS
england Topple Vincent Tang 21/08 0.8.1 / 0.8.1 JA REPO (240901) syzygy OSS *2
india Bit-Genie Aryan Parekh 21/08 9 / 9.24 JA dev D/L (250920)   OSS
russia GreKo Vladimir Medvedev 21/08 210815     OSS
norway Weiss Terje Kirstihagen 21/08 2.0 / 250206 JA dev D/L syzygy OSS *2
world Dark Toga, TC-77514 *24 Thomas Gaksch, Dietrich Kappe et al. 21/06 III: 1.1 / 1.1 JA REPO (240620)   OSS
world Toga, WIKI *24 " 21/05 III: 0.3.12 / 0.3.12 JA REPO (240918)   "
world Toga *24 Thomas Gaksch, Ed Schröder et al. 22/03 II: 4.0-1.1 NNRe JA REPO (240515)   OSS *26
philippines Invictus Edsel Apostol 21/06 r382 / r391 JA D/L (250901)   OSS *2
poland spain Rodent, GitHub Pawel Koziol, Pablo Vazquez 21/04 IV: 0.22 / 0.33 JA D/L (250318)   OSS *2
world Rodent Pawel Koziol, Ed Schröder, et al. 22/03 1.1 NNRe JA REPO (241008)   OSS *26
andorra Andscacs (Wayback) Daniel José Queraltó 21/03 0.95198     free *2
andorra Andscacs, web (own site) " 21/01 0.1 NNSf     free *14
germany Nemorino, net Christian Günther 21/01 6.01 / 6.11 JA dev D/L (240808) syzygy OSS
russia K2 Sergey Meus 21/01 0.99 / 251016 dev D/L   OSS *2
usa Nirvanachess Thomas Kolarik 20/12 2.5 (201212)   *22 free *2
germany Tornado Engin Üstün 20/12 201209 (241015 NN)   *12 free
germany FabChess Fabian von der Warth 20/11 1.16     OSS *2
Altar Kim Kåhre 20/05 200521 Exp     OSS *2
italy Gogobello Salvatore Giannotti 20/05 2.2   syzygy OSS *2 *29
germany Monolith Jonas Mayr 20/05 2.01   syzygy OSS *2
germany Asymptote Maximilian Lupke 20/05 0.8   syzygy OSS *2
brazil pirarucu Raoni Campos 20/05 3.3.5 / 3.3.5 JA REPO (240430)   OSS *1 *2
netherland chess22k Sander Maassen van den Brink 20/04 1.14     OSS *1 *2
spain Gödel (Wayback), REPO Juan Manuel Vázquez 20/02 7.0 JA     free *2
usa Crafty, WIKI *18 Prof. Robert M. (Bob) Hyatt 20/02 25.6 JA xb D/L (250901) syzygy OSS *2
canada Schooner D/L *18 *19 Denis Sceviour 19/12 2.2 xb     free *2
spain RuyDos (Wayback) Álvaro Begué, José Manuel Morán 19/12 1.1.11   syzygy free *2
serbia Xiphos Milos Tatarevic 19/11 0.6 / 0.6.1 JA dev REPO (250801) syzygy OSS *2
italy Vajolet2, web Marco Belli 19/11 S NNv1 / 2.8.0   syzygy OSS *2
germany Deep iCE Thomas Petzke 19/10 4.0.853   *12 free *2
philippines Deuterium, GitHub projects Ferdinand Mosca 19/09 2019.2.37.73     free *2
turkey Defenchess Can Cetin, Eldenk Dogac 19/08 2.2 / 2.3 JA D/L (250813) syzygy OSS *2
usa Laser Jeffrey An, Michael An 19/02 1.7 / 1.7 JA dev D/L (250806) syzygy OSS *2
germany Arminius D/L Volker Annuss 18/12 181223     free
usa philippines Hannibal Sam Hamilton, Edsel Apostol 18/12 S / 181202 JA dev D/L (250916)   OSS *2
italy Shield Luigi Marco Ripamonti 18/02 2.1.1     free *2
russia SmarThink Sergei S. Markoff 18/02 1.98   syzygy free *2
usa Fizbo *17 Youri Matiounine 17/12 2.0 / 2.0 JA REPO (250702) syzygy OSS
czech usa Rykba, CB, web Vasik Raylich 17/11 Fritz 16 (171113)   *12 *2 *3 *21
france Senpai, web (own site) Fabien LETOUZEY 17/11 2.0 / 2.0 JA D/L (250814)   OSS *2
romania Zurichess, web (WayBack) Alexandrou Mosoi 17/09 Neuchatel     OSS *2
usa EXchess (WayBack) *18 Dan Homan 17/02 7.97b xb   *12 OSS *2
netherland Bobcat Gunnar Harms 16/11 8.0 JA REPO (241113)   OSS *2
netherland belgium Tomcat *25 Gunnar Harms, Norman Schmidt 20/02 1.0 JA D/L (250716)   "
germany Shredder Stefan Meyer-Kahlen 16/10 13   syzygy *11 *2 *3
usa Daydreamer Aaron Becker 16/09 2.00 Pre2 / 2.00 JA Pre2 REPO (240216)   OSS *2
germany DisasterArea (WayBack), REPO Jochen Peussner 16/07 1.65   syzygy free *2
finland Hakkapeliitta Mikko Aarnos 16/04 TCEC v2 REPO *15 syzygy OSS *2
finland belgium Hakkapelitta, Firefather Mikko Aarnos, Norman Schmidt 23/06 3.0 NNSV   " OSS *2 *13
spain Rhetoric (Wayback), web Alberto Sanjuan 15/11 1.4.3     free *2
germany Protector, sources Raimund Heid 15/10 1.9.0 / 1.9.0 JA REPO (240606) *12 OSS *2
russia Gull, WIKI Vadim Demichev 14/04 3     OSS *2
russia usa Gull, Roc, Roc2 *23 Vadim Demichev, Tom Hyer 25/02 2.0.5 REPO *15 syzygy "
russia spain Gull *23 Vadim Demichev, Jose Maria Velasco 16/05 3.1 JV   " "
russia italy Gull *23 Vadim Demichev, Basil Falcinelli 16/05 3.0 BF   " "
End of list, stronger engines released before 2015 not listed, like:
russia Bison, france BugChess2, argentina Chronos, slowakia Critter, italy Equinox, denmark Frenzee, argentina Gaviota, norway Glaurung, israel Junior,
 slovenia Minko / Umko, canada Naum, germany Nemo, germany Octochess, russia Quazar, belgium Sjeng, netherland Spark, usa Zappa = 17

Notes:
go to start of site

- only one engine per programmer or group of programmers is counted = 256 (+28)
- listed are engines that are likely to be in the TOP 250 or close to the TOP 250
- listed are strongest xb / JAVA / MCTS engines
- listed are no private engines
- listed are no engines the name of programmer is unknown, like
- Bread v2.0.0 JA, c4ke v1.1, Cataphract v1.1 JA, Expositor v5.0 JA, Iris v2.0 JA, Prelude Fusion v2.0, Sirius v9.0 JA,
 - Stallion D/L, STRO4K v5.0, Tantabus v240918 JA, Wize v1.0 JA = 11
- listed are CPU engines, no GPU engines, like Allie JA, Ara, Ceres JA ...
- it is possible that unmarked derived engines are hidden in the list; I am not a police officer.

*1 = JAVA based engine, Java-JRE v8 Upd 471, JDK v25.0.1, Node.js v25.1.0 (for Lozza)
*2 = HCE (Hand Crafted Evaluation). If not HCE then NN = Neural Network
*3 = commercial product
*4 = Komodo & Dragon by Komodo v1 are freely available
*5 = Revenge v1 to v3 are commercial products, freely available since v4
*6 = GitHub compiles created by Jim Ablett = JA
 *7 = Stockfish derived
 *8 = please use the install.bat on Scorpio GitHub site
 *9 = egbb bases (Caligula, Chiron, DanaSah, Dirty, EveAnn, Scorpio)
 *10 = gaviota bases (Chiron, DanaSah, Equinox, Gaviota, Minko, Myrddin, Cinnamon + Texel in add. syzygy)
*11 = shredder bases (Shredder in add. syzygy)
 *12 = nalimov bases
 *13 = Hakkapeliitta uses in my configuration a Neural Network file from Sergio Vieri = NNSV
 *14 = Andscacs uses in my configuration a Neural Network file from Stockfish = NNSf
*15 = older JA compiles are available
*16 = bitbit, Clockwork, Elexir, Truncator, Weak required: libgcc_s_seh-1.dll, libwinpthread-1.dll, libstdc++-6.dll
*16 = CeeChess required: libgcc_s_seh-1.dll, libwinpthread-1.dll, libgomp-1.dll, D/L v15.2.0 / 250813
*16 = can be found on: mingw-w64, GitHub (x86_64-posix-seh-msvcrt-rt)
*16 = ShashChess 40 JA required: libwinpthread-1.dll (mingw), libcurl-4.dll, D/L v8.15.0 / 251020
 *16 = GNU Chess, Prophet required: cygwin1.dll, can be found on: cygwin (current version = 3.6.5 / 251009)
*16 = you can check required *.dll files with Dependency Walker, v2.2 / 061029
 *17 = Fizbo was the first engine to use Neural Network technologies!
 *18 = wb2uci.exe, xb adapter by Odd Gunnar Marlin required, D/L v1.3b22 / 070623
*19 = Schooner runs more stably as xb engine
*20 = Stockfish, the latest HCE version! Komodo, the latest HCE version!
*21 = Rybka 2.3.2a HCE is freely available
 *22 = own bitbases (Nirvanachess, Qapla)
*23 = Gull derived (programmer of Gull = Vadim Demichev)
*24 = Fruit derived (programmer of Fruit = Fabien LETOUZEY, web)
 *25 = Bobcat derived (programmer of Bobcat = Gunnar Harms)
*26 = Rodent, Toga uses a Neural Network file from Rebel = NNRe
*27 = OliThink compiles by Jim Ablett can use the Cerebrum Neural Network files = NNCe
*28 = Chiron runs under Windows 11 as w32 engine only
*29 = Coiled, Gogobello can use a Stockfish Neural Network file = NNSf
 *30 = Thrawn, Anduril uses a Stockfish Neural Network file = NNSf

S = Sources available only
² = second program by the programmer, strongest at first!

(green date) in brackets, creation date of *.exe

dev = development, Pre = Pre-release, RC = Release Candidate, D/L = download, OSS = Open-Source-Software,
web = website, net = Neural Network file(s), Iv = Interview, xb = xboard, MCTS = Monte-Carlo Tree Search

Compiles by: JA = Jim Ablett, CE = Chris Euler, IP = IPman, DA = Dann Corbit
Older JA directory's by: Lenard Spencer, Tony Mokkonen
REPO if the D/L URL to the last JA compiles or the version by programmer(s) is newer as Jim's compiles

Quest by Frans Morsch, Fritz 13 and versions before
Pandix by Gyula Horváth, Fritz 14
Rybka by Vasik Raylich, Fritz 15 / 16
Ginkgo by Frank Schneider, Fritz 17 / 18 / 19 / 20


by Frank Quisinsky, Germany
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A help file to find TOP engines faster!
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