Dragon by Komodo Chess

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Dragon by Komodo Chess, (KomodoDragon, Komodo Dragon) a version of Komodo which combines an NNUE based evaluation with Komodo's search, either classical alpha-beta as well as MCTS. Dragon was announced on November 02, 2020, and released as Dragon by Komodo Chess on November 10, 2020. Strength improvements for both search modes were given in the 150 (4 threads) to 190 (one thread) Elo range.

Dragon is the work of Larry Kaufman and Mark Lefler, who superseded original Komodo author Don Dailey after his death on November 22, 2013, further supported by Dmitry Pervov and Dietrich Kappe concerning the NNUE inference code and training data. The neural network was trained supervised by chess Grandmaster Larry Kaufman, along with reinforcement learning considering billions of positions and evaluations from Komodo games. Chess.com supported the project financially.

=Tournament Play= Dragon by Komodo Chess, at TCEC called KomodoDragon, played the Premier Division of TCEC Season 20, and became strong third behind LCZero and Stockfish in 2020/2021. KomodoDragon became third again at TCEC Season 21, winning the Infrafinal, and became runner up behind Stockfish at TCEC Season 22 in 2022.

=Namesake=
 * Dragon by Yuri Shpeer
 * Dragon by Bruno Lucas
 * Dragon analysis engine of Convekta's Chess Assistant

=Forum Posts=

2020

 * Lizard-NNUE Experiment NOT bad with NNUE Net Evaluation... by Nancy M Pichardo, CCC, July 15, 2020
 * Komodo 14.1 Release and Dragon Announcement by Larry Kaufman, CCC, November 02, 2020 » NNUE
 * Dragon by Komodo Chess by Larry Kaufman, CCC, November 10, 2020
 * Re: Dragon by Komodo Chess by Larry Kaufman, CCC, November 14, 2020


 * "Komodo dragon" by Warren D. Smith, FishCooking, November 11, 2020
 * Re: Speculations about NNUE development (was New engine releases 2020) by Connor McMonigle, CCC, November 12, 2020
 * Re: Speculations about NNUE development (was New engine releases 2020) by Connor McMonigle, CCC, November 12, 2020 » NNUE, Seer, Halogen


 * Dragon versus Nakamura by Larry Kaufman, CCC, November 17, 2020

2021

 * Komodo Dragon 2 released by Larry Kaufman, CCC, May 04, 2021
 * Komodo Dragon vs IM Andras Toth knight odds match by Larry Kaufman, CCC, June 11, 2021
 * Re: will Tcec allow Stockfish with a Leela net to play? by Connor McMonigle, CCC, June 17, 2021 » NNUE
 * Komodo Dragon 2.5 released by Larry Kaufman, CCC, September 24, 2021
 * Komodo Dragon 2.5.1 released by Larry Kaufman, CCC, October 05, 2021
 * Komodo Dragon vs. GM Perelshteyn, knight odds match by Larry Kaufman, CCC, October 21, 2021
 * Komodo Dragon 2.6 released by Larry Kaufman, CCC, December 20, 2021

2022

 * Komodo Dragon 2.6.1 released by Larry Kaufman, CCC, January 09, 2022
 * Dragon 2.6.1 Elo levels by Larry Kaufman, CCC, January 29, 2022
 * Komodo Dragon 3 Released by KomodoChess by Larry Kaufman, CCC, April 26, 2022

=External Links=

Chess Engine

 * Komodo Chess Engine
 * Komodo chess engine - Dragon
 * Komodo Releases Powerful New 'Dragon' Chess Engine - Chess.com, November 11, 2020
 * Komodo Dragon 2 is here!, ChessBase News, May 19, 2021
 * Larry Kaufman Interview - The Dragon's tale by Arne Kaehler, ChessBase News, June 22, 2021 » Larry Kaufman

Misc

 * Komodo dragon from Wikipedia

=References= Up one Level