Chess-Engines

Last changes: December 23rd, 2025 (00:15)
back to ETOC-G, Links

goto end of site (Notes) ................. !! Well-assorted by: Alphabetic order of engines

Obligation: Chess programming WIKI, RWBC (chronology)

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
Arena 3.5.1, Banksia 0.58 RC1, BearChess 1.5.2.0, CB-Emu 251210, ChessMD 1.0,
CuteChess 1.4.0, en-croissant 0.12.1, HIARCS Chess Explorer Pro 1.5, JFXChess 4.6.0,
LiGround 0.5.1, LittleBlitzer 2.77, Lucas R2.21-FP13, Nibbler 2.5.2, Pawn-Appetit 0.10.0,
Scid vs. PC 4.26, Shredder GUI 13, Swiss-Chess 9.64, Tarrasch 3.13b, Winboard 4.9.0

ChessBase: Fritz v20-upd.8, ChessBase v18-upd.17, ChessBase v26-upd.2
 CHESS OK: Aquarium 2026, Chess-Assistant 2026

Tools: Norm's 40H Chess-Tools 251114, PGN-Extract 250108
Endgame: syzygy, others, Logos: Chess-Cache		 ETOC-G
Preparation-Tourney: 16.250 games
Started: December 21st, 2025 (12:19)

 

Most of the current TOP 250 available engines included!
 Well-assorted by: Release date of engines, at first frequently updated dev / Pre (6)
 December 23rd, 2025 (00:15): D/L = 0,158Mb, this file + 381 Shredder *.eng examples

268 Engines Rank Programmer(s) Date Version(s) Jim Ablett Endgame Status
world Clockwork, GitHub: D/L *16   . the Clockwork developers 25/12 251222-a8f73918 dev - - OSS *2
australia Halogen - Pre   Kieren Pearson 25/12 15.28.0 Pre - syzygy OSS
england Monty, GitHub: D/L - MCTS   Jamie Whiting 25/12 251220-78c77083 dev - - OSS
germany PlentyChess - Pre, TC-85614   Patrick Leonhardt 25/12 7.0.37 Pre - syzygy OSS
world Reckless - dev   Arseniy Surkov, et al. 25/12 251211-0dd5b9ac dev D/L 251122 syzygy OSS
world Stockfish, GitHub: D/L   . the Sfish developers, authors 25/12 251221-c467fe5b dev - syzygy OSS
italy Vajolet2, web   Marco Belli 25/12 3.0 REPO *15 syzygy OSS
russia Petrel   Aleks Peshkov 25/12 S 3.2 / 3.2 JA D/L *6 - OSS
france Senpai (own site), GitHub   Fabien LETOUZEY 25/12 3.0.1 / 3.0.1 JA D/L - OSS *2
norway Grail   Jørgen Hanssen 25/12 1.0.2 - - OSS
france Demolito, current   Lucas BREASCH 25/12 251216 REPO *15 - OSS *2
slowakia Quanticade   Martin Botka 25/12 Cronus 3.0 D/L - OSS
netherland Chessnix   Eric Langedijk 25/12 1.2 / 1.2 JA D/L - OSS *2
usa Myrddin *18, Cerebrum v2.0   John Merlino, D. CARTEAU 25/12 0.94 NNCe xb REPO *15 *10 OSS *27
france KnightX   Christophe JOLLY 25/12 4.7 - *12 free *2
england Tcheran   Jonathan Gilchrist 25/12 9.0 REPO *15 syzygy 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
world Caligula *18, Cerebrum v2.0   ", Andrés Valverde, D. CARTEAU 25/12 3.0 NNCe xb - " free* 27
germany israel Schönemann   Jochen Gehtab 25/12 0.5.0 / 0.5.0 JA D/L - OSS
romania Sturddle   Cristian Vlasceanu 25/12 2.4.0 - syzygy OSS
france Prune   T. GIROLAMI, J. BIENVENUE 25/12 3.0.0 - - OSS
germany brazil Cinder   Bruno Dutra 25/12 0.4.1 REPO *15 syzygy OSS
wales Lozza   Colin Jenkins 25/09 8 REPO *15 - OSS *1
wales ² Cwtch   " 25/12 4 - - OSS
hungary Eleanor, web   Mark Kasa 25/12 3.0 REPO *15 - OSS
netherland Dog, GitHub   Folkert van Heusden 25/12 4.10.2 REPO *15 syzygy OSS
poland Caissa   Michal Witanowski 25/12 1.24 / 1.24 JA D/L syzygy OSS
germany JackyChess   Matthias Lang 25/12  25.12 / 25.12 JA D/L - OSS *1 *2
france Orion, Cerebrum v2.0   David CARTEAU 25/11 1.1 - - free / OSS
france ² Nostradamus   " 25/09 0.4 - - OSS
england Rexigon *18   Tom King 25/11 1.0 GenAI xb - - OSS *31
england ² Francesca *18   " 22/09 0.32 xb - - free *2
belarus Quirky   Anton Kernozhitsky 25/11 2.1 / 2.1 JA D/L - OSS
world Leela Chess Zero, web   . the Lc0 developers 25/11 Lc0 0.32.1 PUCT - syzygy OSS
france Isa   Daniel ANULIERO 25/11 4.5 - syzygy free
turkey Ynode   Orhan Öztürk 25/11 0219 - - free
denmark Meltdown   Hans Binderup 25/11 1.11 / 1.11 JA D/L syzygy OSS *2
usa Yakka   Christopher Crone 25/11 1.4 - - OSS
italy Alexandria, net   Guiseppe Pagano 25/11 8.1.12 / 8.1.12 JA D/L - 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
jordan Amira   Fauzi Akram Dabat 25/10 1.71 GenAI / 1.71 GenAI JA D/L - OSS *31
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
germany Ginkgo, CB   Frank Schneider 25/10 Fritz 20 251024, GUI upd.07 - syzygy *3
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
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
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 - "
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 REPO *15 syzygy OSS
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
germany OliThink, GitHub   Dr. Oliver Brausch 25/09 5.11.9 250919 REPO *15 - OSS *2
world OliThink, Cerebrum v1.1   ", Jim Ablett, D. CARTEAU 25/11 5.11.9 NNCe JA-v4 D/L 251124 - OSS *27
slovenia Lambergar   Janez Podobnik 25/09 1.3 REPO *15 - OSS
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
australia Halogen, net   Kieren Pearson 25/09 15.0.0 / 15.0.0 JA D/L syzygy 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
world GNU Chess *16   . the GNU Chess developers 25/08 S / 6.30 JA D/L - OSS *2
usa Tarnished, net   Anik Patel 25/08 Consort 4.0 REPO *15 - OSS
usa Tarnished - dev   " 25/12 S 251207 / 251119 JA dev D/L - "
england Panda   Sebastiano Rebonato-Scott 25/08 1.1.1 250819 REPO *15 - 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
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   M. Ángel De la Vega Rodríguez 25/08 2.0.0 / 2.0.0 JA D/L - OSS
canada Patricia, Patricia-EAS   Adam Kulju 25/07 5 / 5 JA / 5 xtremeEAS D/L syzygy OSS
canada ² Willow   " 24/02 4.0.0.1 / 4.0 JA REPO 240426 - "
spain Casanchess   Carlos Sánchez Mayordomo 25/07 0.9 / 0.9 JA D/L syzygy 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
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   Hoa T. Vu 25/07 250709 / 250709 JA D/L - 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
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 " "
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
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
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 78   - 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 25/11 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
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 - syzygy *10 OSS
sweden Texel, Dropbox   " 25/11 1.13a6 dev / 1.13a4 JA dev D/L 250713 " "
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
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 251118 - 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 - "
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
lithuania singapore smol.cs   Gediminas Masaitis, Goh CJ 24/01 1.6.1 231020 - - 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
usa Lishex   Michal Kurek 23/08 1.1.1 - - OSS *2
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
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
spain Carballo   Alberto Alonso Ruibal 22/10 S / 1.8 JA REPO 240430 - OSS *1 *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
russia GreKo   Vladimir Medvedev 21/12 211231 / 210817 NNSf - - OSS *2 *29
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
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
norway Weiss   Terje Kirstihagen 21/08 2.0 / 250206 JA dev D/L syzygy OSS *2
world Dark Toga, TC-77514 *24   T. Gaksch, D. Kappe et al. 21/06 III: 1.1 / 1.1 JA REPO 240620 - OSS
world Toga, WIKI *24   T. Gaksch, D. Kappe et al. 21/05 III: 0.3.12 / 0.3.12 JA REPO 240918 - OSS
world Toga *24   T. 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
philippines ² Twisted Logic   " 18/09 Alpha / 100815 JA REPO 240520 - "
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
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 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 / 3.0 NNSf - 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
sweden Drosophila   Gustaf Ullberg 20/03 1.6 / 1.6 JA REPO 240605 - OSS *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
italy ECE (WayBack), D/L   Viscione Luigino 20/01 20.1 - - OSS *2
canada Schooner D/L *18 *19   Denis Sceviour 19/12 2.2 xb - - free *2
spain RuyDos (Wayback)   Álvaro Begué, José M. Morán 19/12 1.1.11 - syzygy free *2
serbia Xiphos   Milos Tatarevic 19/11 0.6 / 0.6.1 JA REPO 250801 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 D/L 250806 syzygy OSS *2
germany Arminius D/L   Volker Annuss 18/12 181223 - - free *2
usa philippines Hannibal   Sam Hamilton, Edsel Apostol 18/12 S / 181202 JA dev D/L 250916 - OSS *2
usa Donna   Michael Dvorkin 18/10 S / 4.1 JA REPO 240605 - 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
romania Zurichess, web (WayBack), D/L   Alexandrou Mosoi 17/09 Neuchatel / Nidwalden dev - - 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   ", 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
bulgaria Pawny (Wayback)   Mincho Georgiev 16/06 1.2   *10 OSS *2
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 "
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
spain Rodin *18   Fermin Serrano 16/02 8.0 - *9 free *2
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   ", 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 - " "
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:
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- only one engine per programmer or group of programmers is counted = 268 (+36)
- 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 v2.1.0 JA, Iris v2.0 JA / ² c4ke v2.0, Cataphract v1.1 JA, Episteme v1.0.0, usa Expositor v5.0 JA,
- usa 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 = 12
- 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, Execption: GenAI
*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, GNU Chess 5.60, GNU Cheese,
*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
 *27 = Myrddin 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
 *31 = Rexigon, Amira = Generative Artificial Intelligence = GenAI

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

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

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02#  General of Engines ****
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04#  Major General **
05#  Brigadier General *
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08#  Major
09#  Captain
10#  First Lieutenant
11#  Second Lieutenant
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13#  Master Sergeant
14#  Sergeant First Class
15#  Staff Sergeant
16#  Sergeant
17#  Corporal
18#  Specialist
19#  Private First Class
20#  Private

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