Chess engines

Last changes:
December 01st, 2025 (00:15)
Back to
Links

go to
end of site (Notes) .................. !! Well-assorted by: Release date of engines

Obligation:
Chess programming WIKI

Fora:
CSS, Hiarcs, Schachcomputer.info, TalkChess - New - JA
Open-Bench-Test:
T1, T2, T3, T4, T5, T6, T7, T8-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 1.5.0.1, CB-Emu 251117, ChessMD 1.0,
CuteChess 1.4.0, en-croissant 0.12.1, HIARCS Chess Explorer Pro 1.5, JFXChess 4.5.0, LiGround 0.5.0,
LittleBlitzer 2.77, LucasChess R2.21-FP10, Nibbler 2.5.2, Pawn-Appetit 0.9.0, Scid vs. PC 4.26,
Shredder GUI 13, Swiss-Chess 9.64, Tarrasch 3.13b, Winboard 4.9.0

CB:
Fritz v20-upd.5, Chessbase v18-upd.15, Chessbase v26-upd.1

Tools:
Norm's 40H Chess-Tools 251114, PGN-Extract 250108
Endgame:
syzygy, others, Logos: Chess-Cache
The Number 1 = Stockfish
Reckless
, PlentyChess, Obsidian
are in the nearby!

191 out of 265 JA compiles =
72,08%
110
out of 265 Endgame = 41,51%
105
out of 265 HCE = 39,63%
010
out of 265 JAVA = 3,78%
012
out of 265 xb = 4,53%
006
out of 265 MCTS / PUCT = 2,27%
007
out of 265 commercials = 2,65%

056 different flags

051
out of 265 from 1. usa = 19,25%
032
out of 265 from 2. germany = 12,08%

Most of the current TOP 250 available engines are included!
Last 5 upd.:
1. Orion 1.1, 2. Rexigon 1.0 xb, 3. Petrel 3.1 JA, 4. Caligula 2.0 NNCe xb, 5. Tcheran 8.0

Well-assorted by: Alphabetic order of engines
December 01st, 2025 (00:15): D/L = 0,153Mb, this file with 371 Shredder GUI *.eng config examples

265 Engines Programmer(s) Date Version(s) 191 Jim Ablett Endgame Status
lithuania 4k.c Gediminas Masaitis 25/10 5.0 (251030) - - OSS *2
world 4ku ... the 4ku developers 24/08 5.1 (240829) / 5.1 JA REPO (240910) - OSS *2
england Admete Kylie MacFarquharson 25/06 1.8.0 REPO *15 syzygy OSS
england Akimbo Jamie Whiting 24/03 1.0.0 / 241218 JA dev D/L - OSS
usa Aku Hoa T. Vu 25/07 250709 / 250709 JA D/L - OSS
italy Alexandria, net Guiseppe Pagano 25/11 8.1.12 / 8.1.12 JA D/L - OSS
china Altair Alexander Tian 24/02 7.0.0 / 7.2.1 JA dev D/L (250703) - OSS
Altar Kim Kåhre 20/05 200521 Exp - - OSS *2
france Amoeba Richard DELORME 21/12 3.4 / 3.4 JA REPO (231221) - OSS *2
andorra Andscacs (Wayback) Daniel José Queraltó 21/03 0.95198 - - free *2
andorra Andscacs, web (own site) " 21/01 0.1 NNSf - - free *14
usa Anduril Kevin Hughes 25/10 S / 251023 NNSf JA dev D/L syzygy OSS *30
spain Anubis *18 José Carlos Martínez Galán 25/10 3.06 xb REPO *15 syzygy OSS
usa Apotheosis Andrew Hockman 23/04 4.0.1 / 4.0.1 JA REPO (240124) - OSS
italy Aramis Federico Saitta 24/09 1.4.0 JA REPO *6 - OSS *2
usa Arasan, GitHub Jon Dart 25/07 25.2 / 25.2 JA D/L syzygy OSS
norway Arcanum Lars Murud Aurud 25/10 2.7 / 2.7 JA D/L syzygy OSS
germany Arminius D/L Volker Annuss 18/12 181223 - - free *2
austria Astra Semih Özalp 25/07 6.1.1 / 6.1.1 JA D/L syzygy OSS
germany Asymptote Maximilian Lupke 20/05 0.8 - syzygy OSS *2
spain Atlas Andrés Manzanares 24/12 4.35 - syzygy free *2
usa Aurora Cai Winston 25/01 1.26.0 MCTS REPO *15 syzygy OSS
china Avalanche Yinuo Huang 24/01 2.1.0 / 2.1.0 JA REPO (250718) - OSS
norway Axiom Sindre Wolden 25/06 2.1.0 - - OSS
bulgaria Bagatur Krasimir Topchiyski 25/07 5.3 / 5.3 JA D/L syzygy OSS *1
france Belette Vincent BAB 24/03 3.0.0 REPO *15 - OSS *2
usa Berserk, TC-83560 Jay Honnold 24/03 13 / 250622 CE dev D/L syzygy OSS
sweden bitbit *16 Isak Ellmer 25/10 1.6 / 1.6 JA D/L - OSS
india Bit-Genie Aryan Parekh 21/08 9 / 9.24 JA dev D/L (250920) - OSS
hungary BlackCore Balàzs Szilágyi 23/03 6.0 / 6.0 JA REPO (250721) syzygy OSS
turkey Black Marlin Doruk Şekercioğlu 24/02 9.0 / 250413 JA dev D/L - OSS
usa Blunder Christian Dean 22/07 8.5.5 / 8.5.5 JA REPO (240111) - OSS *2
netherland Bobcat Gunnar Harms 16/11 8.0 JA REPO (241113) - OSS *2
ukraine Booot Alex Morozov 25/02 7.4 - - OSS
usa Cadie Martin Wyngaarden 25/03 2.1 / 2.1 JA D/L - OSS *2
poland Caissa Michal Witanowski 25/08 1.23 / 1.23 JA D/L syzygy OSS
spain Caligula *18 Pedro Castro 22/07 1.1 xb - *9 free *2
world Caligula *18, Cerebrum-net v1.0 ", Andrés Valverde, David CARTEAU 25/11 2.0 NNCe xb - " free* 27
netherland Calvin, ² dev Hobbes Dan Kelsey 25/06 6.1.1 / 6.1.1 JA D/L - OSS *1
italy Carp + Carp Andrea Sgobbi 23/09 3.0.1 / 3.0.1 JA dev2 D/L (250928) - OSS
spain Casanchess Carlos Sánchez Mayordomo 25/07 0.9 / 0.9 JA D/L syzygy OSS
usa CeeChess *16 Thomas Reinitz 25/11 2.2 REPO *15 - OSS *2
argentina Ceibo Federico Rojo 23/12 1.0 - syzygy free
england Celeris Hin-Yu-Evan Fung 25/07 2.0 / 2.0 JA D/L - OSS
india ChandraChess Aditya Chandra 24/11 2.0 REPO *15 - OSS
austria Cheers Sebastian Venter 24/10 1.0.0 / 1.0.0 JA D/L syzygy OSS *2
france Cheese, GitLab Patrick DUHAMEL 25/08 3.3.2 REPO *15 syzygy OSS *2
czech Cheng Martin Sedlak 24/05 4.48 - syzygy OSS
lithuania Chess.cpp Gediminas Masaitis 24/09 4.10 / 4.10 JA D/L syzygy OSS
england Chess-3 Paul Sonkoly 25/08 2.0 / 2.0 JA D/L - OSS
netherland chess22k Sander Maassen van den Brink 20/04 1.14 - - OSS *1 *2
usa Chess4j James Swafford 25/09 6.2 REPO *15 - OSS *1
england Chessatron Daniel Allinson 25/03 1.3.14c - - OSS *2
germany ChessBrainVB Roger Zühlsdorf 24/02 4.03a - syzygy OSS *2
netherland Chessnix Eric Langedijk 25/11 1.0 - - OSS *2
england netherland Chess System Tal, Rebel Chris Whittington, Ed Schröder 23/06 CSTal 2.0 - - OSS
italy Chiron, website not available Ubaldo Andrea Farina 22/01 5.01 w32 (220113) *28 - *9 *10 *3
germany brazil Cinder Bruno Dutra 25/08 0.3.1 REPO *15 syzygy OSS
italy Cinnamon Giuseppe Cannella 22/07 2.5 / 2.5 JA REPO (240108) syzygy *10 OSS *2
usa Clarity, ² dev Anura Joseph Pasfield 25/07 8.0.0 / 8.0.0 JA D/L syzygy OSS
world Clockwork, GitHub: D/L *16 ... the Clockwork developers 25/11 251127-b6affa76 dev - - OSS *2
romania Clover Luca-Mihnea Metehau 25/09 9.1 / 9.1 JA D/L syzygy OSS
canada Clovis Jonathan McDermid 23/03 S / III JA dev D/L (251009) - OSS *2
spain Coiled, web Oscar Gavira 23/07 1.2 / 1.2 JA REPO (240221) - OSS *2 *29
england Colossus Martin Bryant 25/06 2025b - syzygy free *2
poland Combusken - archived Marcin Henryk Bartkowiak 22/01 2.0.0 / 2.0.0 JA REPO (241010) syzygy OSS *2
russia Counter Vadim Chizhov 24/01 5.5 / 5.5 JA D/L - OSS
england Crab Jasper Shovelton 25/07 S / 4.6.3 JA D/L (250918) - OSS *2
usa Crafty, WIKI *18 Prof. Robert M. (Bob) Hyatt 20/02 25.6 JA xb D/L (250901) syzygy OSS *2
germany CT800 Rasmus Althoff 24/08 1.46 REPO *15 - OSS *2
sweden CuckooChess, Dropbox Peter Österlund 24/05 1.13 / 1.13 JA REPO (240501) - free *1
wales Cwtch Colin Jenkins 25/09 3 - - OSS
spain DanaSah Pedro Castro 23/06 9.1 / 9.1 JA D/L (250807) *9 *10 OSS
world Dark Toga, TC-77514 *24 Thomas Gaksch, Dietrich Kappe et al. 21/06 III: 1.1 / 1.1 JA REPO (240620) - OSS
usa Daydreamer Aaron Becker 16/09 2.00 Pre2 / 2.00 JA Pre2 REPO (240216) - OSS *2
germany Deep iCE Thomas Petzke 19/10 4.0.853 - *12 free *2
turkey Defenchess Can Cetin, Eldenk Dogac 19/08 2.2 / 2.3 JA D/L (250813) syzygy OSS *2
austria Delocto Moritz Terink 23/12 S / 231222 JA REPO *15 - OSS *2
france Demolito, current D/L Lucas BREASCH 21/10 211004 / 250408 dev REPO *15 - OSS *2
philippines Deuterium, GitHub projects Ferdinand Mosca 19/09 2019.2.37.73 - - free *2
norway Devel (WayBack) Per Skjerpe 21/11 4.0.2.3 - - free *2
turkey Devre Ömer Faruk Tutkun 24/08 6.0 / 6.39 JA dev D/L (241101) syzygy OSS
world Dirty *18 Fonzy Bluemers, et al. 25/04 Catpaw xb - *9 free *2
germany DisasterArea (WayBack), REPO Jochen Peussner 16/07 1.65 - syzygy free *2
netherland Dog, GitHub Folkert van Heusden 25/10 4.10.1 REPO *15 syzygy OSS
usa Donna Michael Dvorkin 18/10 S / 4.1 JA REPO (240605) - OSS *2
usa Dragon by Komodo, CB Don Daily, et al. 23/10 3.3 MCTS - syzygy *3 *4
russia Drofa Alexander Litov 23/12 4.1.0 fix / 4.1.1 JA REPO (240513) - OSS
sweden Drosophila Gustaf Ullberg 20/03 1.6 / 1.6 JA REPO (240605) - OSS *2
france Dump Richard DELORME 25/03 2.3 - - OSS *2
italy ECE (WayBack), D/L Viscione Luigino 20/01 20.1 - - OSS *2
romania Eidolon Daniel Malanca 25/03 1.0.0 - - OSS
hungary Eleanor, web Mark Kasa 25/08 2.0 REPO *15 - OSS
india Elixir *16 Arjun Basandrai 24/11 3.0 (241124) / 3.0 JA D/L - OSS
russia Equisitum, net Alexander Litov 24/03 1.0 / 1.30 JA dev D/L (250629) - OSS
usa Ethereal, web, IPman Andrew Grant 23/02 14.00 IP / 14.31 JA dev REPO (240303) syzygy OSS *3
england Eubos Chris Bolt 25/10 4.2 / 4.2 JA D/L - OSS *1
netherland Euwe Joost Houben 25/03 2.1.0 / 2.1.0 JA D/L syzygy OSS *2
spain EveAnn *18 Andrés Valverde 25/10 3.6 xb - *9 free
usa EXchess (WayBack) *18 Dan Homan 17/02 7.97b xb - *12 OSS *2
usa Exocet Kyle Zhang 24/09 0.4.0 / 250817 JA dev D/L - OSS
germany FabChess Fabian von der Warth 20/11 1.16 - - OSS *2
germany Fatalii Patrick Heck 25/02 0.9.0 / 0.9.0 JA D/L - OSS *2
belgium Fire, Firefather projects, web Norman Schmidt 25/08 10 / 10 JA D/L - OSS
usa Fizbo *17 Youri Matiounine 17/12 2.0 / 2.0 JA REPO (250702) syzygy OSS
england Francesca *18 Tom King 22/09 0.32 xb - - free *2
germany Fridolin Christian Sommerfeld 22/06 4.00 / 4.00 JA D/L (250617) syzygy OSS
new_zealand Frozenight Mark Carlson 23/01 6.0.0 / 250720 JA dev D/L - OSS
germany Ginkgo, CB Frank Schneider 25/05 Fritz 20 (250520) - syzygy *3
world GNU Chess *16 ... the GNU Chess developers 25/08 S / 6.30 JA D/L - OSS *2
spain Gödel (Wayback), REPO Juan Manuel Vázquez 20/02 7.0 JA - - free *2
italy Gogobello Salvatore Giannotti 20/05 2.2 / 3.0 NNSf - syzygy OSS *2 *29
philippines GOOB Gabriel Montes 23/07 1.8.9 / 1.8.9 JA REPO (240830) - OSS *2
russia GreKo Vladimir Medvedev 21/12 211231 / 210817 NNSf - - OSS *2 *29
russia Gull, WIKI Vadim Demichev 14/04 3 - - OSS *2
russia usa Gull, Roc, Roc2 *23 ", Tom Hyer 25/02 2.0.5 REPO *15 syzygy "
russia spain Gull *23 ", Jose Maria Velasco 16/05 3.1 JV - " "
russia italy Gull *23 ", Basil Falcinelli 16/05 3.0 BF - " "
finland Hakkapeliitta Mikko Aarnos 16/04 TCEC v2 REPO *15 syzygy OSS *2
finland belgium Hakkapelitta, Firefather ", Norman Schmidt 23/06 3.0 NNSV - " OSS *2 *13
australia Halogen, net Kieren Pearson 25/09 15.0.0 / 15.0.0 JA D/L syzygy OSS
australia Halogen - Pre " 25/11 15.24.0 Pre - " "
usa philippines Hannibal Sam Hamilton, Edsel Apostol 18/12 S / 181202 JA dev D/L (250916) - OSS *2
usa Hardfiskur Tyler Zhang 25/03 250329 JA rev 98eab6f D/L - OSS *2
italy Heimdall, GitHub Mattia Giambirtone 25/09 1.4.2 REPO *15 - OSS
england Hiarcs Mark John Uniacke 24/12 15.4 - syzygy *2 *3
usa Horsie Liam McGuire 25/05 1.1 / 1.1 JA D/L - OSS
new_zealand ice4 Mark Carlson 25/10 6.1 / 6.1 JA dev D/L - OSS *2
ukraine Igel Volodymyr Shcherbyna 24/12 3.6.0 / 3.6.3 JA dev D/L (250628) syzygy OSS
brazil Illumina Thomas Mergener 25/05 3.0 / 250525 JA dev D/L - OSS
poland Inanis Pawel Osikowski 25/02 1.6.0 REPO *15 syzygy OSS *2
macedonia Integral Aron Petkovski 25/02 7 / 250812 JA dev D/L syzygy OSS
philippines Invictus Edsel Apostol 21/06 r382 / r391 JA D/L (250901) - OSS *2
france Isa Daniel ANULIERO 25/11 4.5 - syzygy free
poland Jackal Tomasz Jaworski 24/12 1.2.0 / 1.2.0 JA MCTS D/L - OSS
germany JackyChess Matthias Lang 25/09 S / 25.09 JA D/L (251119) - OSS *1 *2
poland Javelin Tomasz Jaworski 24/07 3.0.0 MCTS - - OSS
bangladesh Jet Rafid Ahsan 24/03 1.2 - - OSS
russia K2 Sergey Meus 21/01 0.99 / 251016 dev D/L - OSS *2
france KnightX Christophe JOLLY 25/10 4.6b - *12 free *2
usa Kobra Jasper Sinclair 25/05 2.0 JA D/L *6 - OSS
germany Koivisto, web Finn Eggers, Kim Kåhre 23/01 9.0 / 9.2 JA dev D/L (250525) syzygy OSS
usa Komodo, Iv Don Daily, et al. 20/11 14.1 MCTS *20 - syzygy free *2
japan Kuma Kato Daichi 24/01 1.2 - - OSS
slovenia Lambergar Janez Podobnik 25/09 1.3 REPO *15 - OSS
usa Laser Jeffrey An, Michael An 19/02 1.7 / 1.7 JA dev D/L (250806) syzygy OSS *2
world Leela Chess Zero, web ... the Lc0 developers 25/11 Lc0 0.32.1 PUCT - syzygy OSS
germany Leorik Thomas Jan 25/04 3.1.3 (250421) / 3.1.3 JA D/L - OSS
usa Lishex Michal Kurek 23/08 1.1.1 - - OSS *2
germany Little Goliath Evolution Michael Borgstädt 23/06 LGE 3.17 - - free
usa Lizard aka LTChess Liam McGuire 25/01 11.2 REPO *15 - OSS
wales Lozza Colin Jenkins 25/09 8 REPO *15 - OSS *1
netherland Lunar Patrick Hilhorst 25/09 0.4.0 REPO *15 - OSS
usa Lux Sidhant Roymoulik 24/04 4.2 - - OSS *2
spain Lynx Eduardo Cáceres 25/10 1.11.0 REPO *15 - OSS
usa MadChess, GitHub Erik Madsen 25/03 3.3 - - OSS
usa Maelstorm Saigautam Bonam 25/08 3.3.0 REPO *15 - OSS
usa Mantissa Jeremy T. Wright 22/08 3.7.2 / 240920 JA dev D/L syzygy OSS
sweden Marvin, net Martin Danielsson 24/05 6.3.0 / 6.3.0 JA D/L syzygy OSS
denmark Meltdown Hans Binderup 25/11 1.11 / 1.11 JA D/L syzygy OSS *2
india Mess Rak Laptudirm 23/03 0.3.0 - - OSS *2
italy Mida - archived Giacomo Porpiglia 24/04 2.3.1 / 2.3.1 JA REPO (240814) - OSS
usa Midnight Archishmaan Peyyety 24/01 9 / 9 JA D/L - OSS
france Minic, Minic-Dist, net Vivien CLAUZON 25/05 S 3.44 / 3.43 JA D/L syzygy OSS
brazil Minke Eduardo Marinho 25/10 3.0.0 / 3.0.0 JA D/L - OSS
germany Molybdenum Hannes Lerchl 24/11 4.1 / 4.1 JA D/L (250812) - OSS
germany Monolith Jonas Mayr 20/05 2.01 - syzygy OSS *2
england Monty, GitHub: D/L Jamie Whiting 25/11 251126-2947ba91 dev MCTS - - OSS
czech Motor Martin Novák 25/06 0.9.0 / 0.9.0 JA D/L - OSS
canada Mr Bob Vincent Yu 24/03 1.3.0 / 1.3.0 JA D/L (250804) - OSS
usa Myrddin *18 John Merlino 25/04 0.93 JA xb D/L *6 *10 OSS
germany Nalwald Jost Triller 24/07 19 / 250310 JA dev D/L - OSS *2
cuba Nawito, GitHub Ernesto Torres Feliciano 22/08 22.07 - - OSS *2
germany Nemorino, net Christian Günther 21/01 6.01 / 6.11 JA dev D/L (240808) syzygy OSS
usa Nirvanachess Thomas Kolarik 20/12 2.5 (201212) - *22 free *2
france Nostradamus David CARTEAU 25/09 0.4 - - OSS
italy Nu-chess, D/L Filippo Marfe 21/10 1.0 - - free *2
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 " "
england Odonata Andy Watkins 24/07 1.0 / 1.0 JA REPO (250719) - OSS
germany OliThink, GitHub Dr. Oliver Brausch 25/09 5.11.9 (250919) REPO *15 - OSS *2
world OliThink, Cerebrum-net v1.1 ", Jim Ablett, David CARTEAU 25/11 5.11.9 NNCe JA-v4 D/L (251124) - OSS *27
france Orion, Cerebrum-net v2.0 David CARTEAU 25/11 2.0 - - free / OSS
spain granada Oxide Miguel Ángel De la Vega Rodríguez 25/08 2.0.0 / 2.0.0 JA D/L - OSS
england Panda Sebastiano Rebonato-Scott 25/08 1.1.1 (250819) REPO *15 - OSS
canada Patricia, Patricia-EAS Adam Kulju 25/07 5 / 5 JA / 5 xtremeEAS D/L syzygy OSS
portugal Pawn Pedro Rui Coelho 25/05 4.0 / 4.0.4 JA dev D/L (250809) syzygy OSS
sweden pawnocchio Jonathan Hallström 25/07 1.8.1 REPO *15 syzygy OSS
sweden pawnocchio - HCE " 25/09 1.9 - " OSS *2
bulgaria Pawny (Wayback) Mincho Georgiev 16/06 1.2   *10 OSS *2
usa Peacekeeper Kyle Zhang 24/06 3.01 / 3.01 JA REPO (250718) - OSS
usa Pedantic JoAnn D. Peeler 24/09 2.1.0 - syzygy OSS
italy Pedone Fabio Gobbato 21/04 3.21 - syzygy free
italy Perseus Giovanni Manduca 25/04 1.1 / 1.1 JA D/L - OSS *2
russia Petrel Aleks Peshkov 25/11  3.1 JA D/L *6 - OSS
czech Phalanx *16 *18 Dusan Dobes 16/05 XXV xb - - OSS *2
czech england Phalanx ", Jim Ablett 25/11 XXV JA-v4 D/L (251125) syzygy "
england Pingu William Ching 24/12 5.0.0 / 5.0.0 JA D/L - OSS
brazil pirarucu Raoni Campos 20/05 3.3.5 / 3.3.5 JA REPO (240430) - OSS *1 *2
germany PlentyChess Patrick Leonhardt 25/09 7.0.0 / 7.0.0 JA REPO *15 syzygy OSS
germany PlentyChess - Pre, TC-85614 " 25/11 7.0.22 Pre - " "
france Pluto, web Ludovic DEBEVER 25/07 1.0.1 - - OSS
england Polaris Conor Anstey 23/06 1.8.1 / 1.8.1 JA REPO (240813) syzygy OSS *2
turkey Potential Eren Araz 25/08 3.0.0 / 3.0.0 JA D/L - OSS *2
usa Pounce Alex Flick 25/10 3.0.0 REPO *15 - OSS
germany Priessnitz Kevin Feske 24/11 2.0 / 2.0 JA D/L - OSS *2
australia Princhess Lana Samson (Jacob Jackson) 25/10 0.21.0 / 0.21.0 JA D/L syzygy OSS
usa Prophet, web *16 *18 James Swafford 25/09 5.1 xb REPO *15 - OSS
germany Protector, sources Raimund Heid 15/10 1.9.0 / 1.9.0 JA REPO (240606) *12 OSS *2
italy Protej Alex Brunetti 25/04 0.6.8 - - free *2
france Prune Thomas GIROLAMI, Joachim BIENVENUE 25/11 2.2.0 - - OSS
poland Publius Pawel Koziol 25/10 1.0 / 1.02 JA dev D/L (251022) - OSS
usa Puffin Kurt Peters 24/11 5.0 REPO *15 - OSS
canada PZChessBot Kevin Lu, William Ma 25/10 5.0 / 5.0 JA D/L - OSS
germany Qapla Volker Böhm 25/05 0.3.2 (250517) / 0.3.2 JA D/L *22 OSS *2
slowakia Quanticade Martin Botka 25/05 Orion 2.0 / 2.0 JA D/L - OSS
belarus Quirky Anton Kernozhitsky 25/11 2.1 REPO *15 - OSS
world Reckless Arseniy Surkov, et al. 25/08 0.8.0 / 0.8.0 JA REPO *15 syzygy OSS
world Reckless - dev " 25/11 0.9.0-fe4d4b3d dev (251107) D/L (251122) " "
hungary Renegade Krisztián Peőcz 25/05 1.2.0 / 1.2.0 JA D/L - OSS
usa Rengar Thomas Swayze 24/10 2.1.1 / 2.1.1 JA D/L - OSS
italy Revenge Fabio Gobbato 25/01 4.0 - syzygy free *5
england Rexigon *18 Tom King 25/11 1.0 xb - - OSS
philippines Reyna Renz Targa 25/10 1.0 - - OSS *2
spain Rhetoric (Wayback), web Alberto Sanjuan 15/11 1.4.3 - - free *2
bangladesh Rice Rafid Ahsan 24/03 8.0.0 (240318) REPO (250719) - OSS
poland spain Rodent, GitHub Pawel Koziol, Pablo Vazquez 21/04 IV: 0.22 / 0.33 JA D/L (250318) - OSS *2
world Rodent ", Ed Schröder, et al. 22/03 1.1 NNRe JA REPO (241008) - OSS *26
spain Rodin *18 Fermin Serrano 16/02 8.0 - *9 free *2
netherland rofChade, ² PeSTO Ronald Friederich 23/09 3.1 - syzygy free
germany RubiChess, net Andreas Matthies 24/08 240817 / 250606 JA dev D/L syzygy OSS
russia RukChess, net Ilya Rukavishnikov 25/06 4.1.0 / 4.1.0 JA D/L - OSS
spain RuyDos (Wayback) Álvaro Begué, José Manuel Morán 19/12 1.1.11 - syzygy free *2
czech usa Rykba, CB, web Vasik Raylich 17/11 Fritz 16 (171113) - *12 *2 *3 *21
england Sapling Timothy Jones 25/04 1.2.7 REPO *15 - OSS
belarus Saturn Egor Moroz 24/04 1.3 / 1.3 JA D/L - OSS
germany Schneckbert Nikolas Windheuser 25/04 3.0 / 3.0 JA D/L - OSS
germany israel Schoenemann Jochen Gehtab 24/12 0.4.0 / 0.4.0 JA D/L - OSS
canada Schooner D/L *18 *19 Denis Sceviour 19/12 2.2 xb - - free *2
ethiopia Scorpio *8 Daniel Shawul 25/05 3.0.15.14 / 3.0.15.14 JA D/L *9 OSS
iceland Seawall Pétur Runólfsson 25/03 250322 / 250322 JA D/L - OSS *2
usa Seer, net Connor McMonigle 23/12 2.8.0 / 250310 JA dev D/L syzygy OSS
france Senpai, web (own site) Fabien LETOUZEY 17/11 2.0 / 2.0 JA D/L (250814) - OSS *2
czech Sentinel Daniel Samek 25/02 2.0 / 2.0 JA D/L - 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
china Shallow Guess Zixiao Han 25/04 0.4.0 REPO *15 - OSS
russia Shallow2, GitHub Dimitry Sultanov 22/08 5 / 5 JA dev D/L (251008) - OSS *2
italy Shield Luigi Marco Ripamonti 18/02 2.1.1 - - free *2
germany Shredder Stefan Meyer-Kahlen 16/10 13 - syzygy *11 *2 *3
france Simbelmyne Sam ROELANTS 24/08 1.10.0 / 1.10.0 JA D/L (250904) - OSS *2
usa Slow Chess Blitz Jonathan Kreuzer 22/06 2.9 - syzygy free
germany Smallbrain Max Allendorf 23/01 7.0 / 250722 JA dev REPO syzygy OSS
russia SmarThink Sergei S. Markoff 18/02 1.98 - syzygy free *2
lithuania singapore smol.cs Gediminas Masaitis, Goh CJ 24/01 1.6.1 (231020) - - OSS *2
usa Spaghet, net Li Ying 24/08 BologNNese 1.0 / 1.1.3 JA dev D/L (251118 fix) - OSS
germany Spike, GitHub Ralf Schäfer, Volker Böhm 25/07 1.4.1 - *12 OSS *2
portugal Starzix, ² dev Starlynn Ricardo Pinto 25/04 6.1 / 6.1 JA D/L - OSS
france Stash, GitHub, ² Vault Morgan HOUPPIN 25/04 37.0 / 37.10 JA dev D/L (250803) - OSS *2
usa StockDory Shaheryar Sohail 23/08 Starfish 0.1 - - OSS
world Stockfish, dev, net, Iv ... the Stockfish developers 25/03 17.1 / 17.1 JA D/L syzygy OSS
world Stockfish, GitHub: D/L ... the Stockfish developers, authors 25/11 251130-9e2ee13e dev - " "
world Stockfish, dev - page 77 - 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 - "
world Stockfish, Crystal *7 + Joseph Ellis 25/08 9 / 250802 JA dev D/L syzygy OSS
world Stockfish, Modjo *7 + Jörg Oster 25/11 251118 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
england Stormphrax Conor Anstey 25/06 7.0.0 / 7.0.17 JA dev D/L (250801) syzygy OSS
romania Sturddle Cristian Vlasceanu 25/09 2.3.1 - - OSS
usa Supernova Minkai Yang 21/09 2.4 / 2.4 JA D/L (251015) syzygy OSS
usa Superultra Alexander Liang 25/04 2.1 / 2.1 JA D/L - OSS
sweden Svart Cristopher Torgrip 23/08 6 (230828) / 6 JA D/L (240607) - OSS
usa Tarnished, net Anik Patel 25/08 Consort 4.0 REPO *15 - OSS
usa Tarnished - dev " 25/11 S / 251119 JA dev D/L - "
england Tcheran Jonathan Gilchrist 25/11 8.0 REPO *15 syzygy OSS
sweden Texel Peter Österlund 25/01 1.12 - syzygy *10 OSS
sweden Texel, Dropbox " 25/11 1.13a6 dev / 1.13a4 JA dev D/L (250713) " "
netherland The Baron *18 Richard Pijl 23/05 3.451 xb - syzygy free *2
canada Thrawn Feiyu Lin 25/10 S / 2.2 NNSf JA D/L (251023) - OSS *30
usa Titan Jeffrey Powell 24/06 1.1 / 250628 JA dev D/L - OSS
usa Toad Danny Hammer 25/01 3.0.0 / 3.0.0 JA D/L - OSS *2
world Toga, WIKI *24 Thomas Gaksch, Dietrich Kappe et al. 21/05 III: 0.3.12 / 0.3.12 JA REPO (240918) - OSS
world Toga *24 Thomas Gaksch, Ed Schröder et al. 22/03 II: 4.0-1.1 NNRe JA REPO (240515) - OSS *26
netherland belgium Tomcat *25 Gunnar Harms, Norman Schmidt 20/02 1.0 JA D/L (250716) - OSS *2
hungary tomitankChess Kuzmics Tamás 25/09 S / 5.3 JA D/L (250927) - OSS *1 *2
england Topple Vincent Tang 21/08 0.8.1 / 0.8.1 JA REPO (240901) syzygy OSS *2
germany Tornado Engin Üstün 20/12 201209 (241015 NN) - *12 free
usa Trinket Daniel Ke 24/07 3.5.0 / 3.5.0 JA REPO (240729) - OSS *2
germany Truncator *16 Nikolas Windheuser 25/10 1.0 (Pesto) - syzygy OSS
brazil Tucano, net Alcides Schulz 24/12 12.00 / 12.17 JA dev D/L (250715) syzygy OSS
south-korea Turbulence Jun-Seo Choi 25/06 0.0.8 / 0.0.8 JA D/L - OSS
russia Uralochka Ivan Maklyakov 25/09 3.42a / 3.42a JA D/L syzygy OSS
italy Vajolet2, web Marco Belli 19/11 2.8.0 - syzygy OSS *2
italy Vajolet2 - Pre " 25/11 S / 2.9.0 Pre-26 (Persp. 1) D/L (251126) " 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) " "
india Vengeance Amar Thapa 23/05 3.1.0 / 3.1.0 JA REPO (240526) - OSS
scotland Viridithas, web, net Cosmo Bobak 25/08 18.0.0 / 18.0.0 JA D/L syzygy OSS
usa Wahoo Andrew Hockman 23/08 4.0.0 / 4.0.0 JA REPO (240428) syzygy OSS
usa Wasp, mirror John Stanback 24/06 7.00 - syzygy free
usa Wasp, mirror - dev " 25/11 7.14 dev (251104) - " "
singapore Weak *16 Ethan Pan 25/08 1.0.0 / 1.0.0 JA D/L - OSS *2
usa Weiawaga Kyle Krowpman 25/08 6.0 / 6.0 JA D/L - OSS
norway Weiss Terje Kirstihagen 21/08 2.0 / 250206 JA dev D/L syzygy OSS *2
hungary WhiteCore Balàzs Szilágyi 24/07 0.2 JA dev REPO (240702) - OSS
canada Willow Adam Kulju 24/02 4.0.0.1 / 4.0 JA REPO (240426) - OSS
switzerland Winter Jonathan Rosenthal 24/06 4.0 JA REPO *6 - OSS
serbia Xiphos Milos Tatarevic 19/11 0.6 / 0.6.1 JA dev REPO (250801) syzygy OSS *2
usa Yakka Christopher Crone 25/11 1.4 - - OSS
turkey Ynode Orhan Öztürk 25/11 0219 - - free
england Yukari Hannah Ravensloft 25/11  2025.11.1 JA D/L *6 - OSS
kurdistan Zahak Amanj Sherwany 22/05 10.0 / 10.0 JA D/L (250717) syzygy OSS
france Zangdar Philippe CHEVALIER 25/09 5.00.02 REPO *15 syzygy OSS
russia Zevra Oleg Smirnov 25/02 2.6 / 2.6 JA D/L - OSS
romania Zurichess, web (WayBack), D/L Alexandrou Mosoi 17/09 Neuchatel / Nidwalden - - OSS *2
End of list, stronger engines released before 2015 not listed, like:
sweden Alaric,
russia Bison, france BugChess2, france Chess Tiger, argentina Chronos, slowakia Critter, usa Djinn, italy Equinox, france E.T.Chess,
denmark Frenzee, denmark Gandalf, argentina Gaviota, norway Glaurung, israel Junior, slovenia Minko / Umko, canada Naum, germany Nemo, germany Octochess,
russia Quazar, sweden Ruffian, belgium Sjeng, netherland Spark, canada Thinker, usa Zappa, usa Zarkov = 24

Notes:
go to
start of site

- only one engine per programmer or group of programmers is counted = 265 (+37)
- 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, Episteme v1.0.0, 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, Wilted v1.0.0.0 JA,
- Wize v1.0 JA = 13
- 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 v25.2.1 (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, Rodin, Scorpio
)
*10 = gaviota bases (Chiron, DanaSah, Equinox, Gaviota, Minko, Myrddin, Pawny,
*10 = Cinnamon + Texel in add. syzygy)
*11 = shredder bases (Shredder in add. syzygy)
*12 = nalimov bases
*13 = Hakkapeliitta uses in my configuration a Neural Network from Sergio Vieri =
NNSV
*14 = Andscacs uses in my configuration a Neural Network 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, Phalanx required: cygwin1.dll, can be found on: cygwin (current v. = 3.6.5 / 251009)
*16 = please used the enclosed cygwin1.dll file for Phalanx XXV xb. Phalanx XXV xb is an 32bit engine
*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 from Rebel =
NNRe
*27 = OliThink mod. by Jim Ablett, Caligula mod. by Andrés Valverde can use Neural Network Cerebrum = NNCe
*28 = Chiron runs under Windows 11 as 32bit engine only
*29 = Coiled, Gogobello, GreKo 210815 can use a Stockfish Neural Network = NNSf
*30 = Thrawn, Anduril uses a Stockfish Neural Network = NNSf

S = Sources available only

²
= second program by the programmer, the current development at first!

(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
Contact form, Site-notice, Data Privacy Policy

This URL is a part of Frank's Chess Page

A help file to find TOP engines faster!