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'''[[Main Page|Home]] * [[Engines]] * Komodo'''

'''Komodo''',<br/>

a chess engine by primary author [[Don Dailey]] (died at the age of 57 on November 22, 2013) and since October 2013, by [[Mark Lefler]], supported by chess advisor and evaluation expert and Don's long time collaborator [[Larry Kaufman]]. Since 2015, [[:Category:Opening Book Author|opening book expert]] [[Erdogan Günes]] is responsible for Komodo's [[Opening Book|book moves]].

Komodo appeared in January 2010 derived from Don's former engine [[Doch]]. It uses [[Bitboards|bitboards]] as internal board representation, and has a sophisticated [[Search|search]] and a knowledge based, balanced [[Evaluation|evaluation]].

The improvements cover a wide range of issues, including [[Extensions|extensions]], [[Null Move Pruning|null move]], [[King Safety]], [[Time Management|time management]], and many more. There is one new feature added since Komodo 13.3, "[https://en.wikipedia.org/wiki/Fast_chess#Armageddon Armageddon]" mode, which tells Komodo that White (or Black) must win, draws are scored as losses for that color. When draws are counted as losses for White, knowing this improves Komodo's performance as White by about 30 elo according to our tests. In Armageddon mode, the specified color (usually White) not only avoids clear draws, but adjusts [[Contempt Factor|Contempt]] by an amount we determined was most helpful for Armageddon play. Testing on one thread in Armageddon mode suggests that on a modern laptop, if White gets one minute total plus 1% increment, and Black gets half a minute plus 1% increment plus draw odds, then chances are fairly close to balanced. Other features added since Komodo 13 include more levels, Personalities, and Auto-Skill. Standard mode remains the strongest when [[Principal Variation#MultiPV|Multi-PV]] is not in use, while [[Monte-Carlo Tree Search|MCTS]] mode is generally strongest when both are using Multi-PV.

<span id="Dragon"></span>

=Tournament Play=

=See also=

* [[Doch]]

* [[Occam]]

* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=68718 What was the top Chess engine before it was Stockfish, Komodo or Houdini?] by JohnW, [[CCC]], October 23, 2018

* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=68848 Komodo 12.2 Announcement] by [[Larry Kaufman]], [[CCC]], November 06, 2018

* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=68887 Komodo 12.2.1] by [[Larry Kaufman]], [[CCC]], November 10, 2018

* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=68912 Komodo 12.2.2 Release] by [[Mark Lefler]], [[CCC]], November 12, 2018

* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=73916 Komodo 14 released] by [[Larry Kaufman]], [[CCC]], May 12, 2020

* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=75651 Komodo 14.1 Release and Dragon Announcement] by [[Larry Kaufman]], [[CCC]], November 02, 2020 » [[NNUE]]

==Matches==

* [http://www.talkchess.com/forum/viewtopic.php?t=58455 Komodo vs GM handicap matches] by [[Larry Kaufman]], [[CCC]], December 03, 2015

* [http://www.talkchess.com/forum/viewtopic.php?t=58577 Komodo vs GM Williams match] by [[Larry Kaufman]], [[CCC]], December 12, 2015

* [http://www.talkchess.com/forum/viewtopic.php?t=58767 Mikhalevski vs Komodo match] by [[Larry Kaufman]], [[CCC]], January 01, 2016 <ref>[https://en.wikipedia.org/wiki/Victor_Mikhalevski Victor Mikhalevski from Wikipedia]</ref>

* [http://www.talkchess.com/forum/viewtopic.php?t=58799 Nakamura vs. Komodo] by [[Larry Kaufman]], [[CCC]], January 04, 2016 <ref>[https://en.wikipedia.org/wiki/Hikaru_Nakamura Hikaru Nakamura from Wikipedia]</ref>

* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=71665 Komodo vs. Larry K on chess.com] by [[Larry Kaufman]], [[CCC]], August 27, 2019

* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=73381 Komodo vs GM Smerdon knight odds match] by [[Larry Kaufman]], [[CCC]], March 16, 2020

* [https://rjlipton.wordpress.com/2015/10/06/depth-of-satisficing/ Depth of Satisficing] by [[Kenneth W. Regan|Ken Regan]], [https://rjlipton.wordpress.com/ Gödel's Lost Letter and P=NP], October 06, 2015 » [[Depth]], [[Match Statistics]], [[Pawn Advantage, Win Percentage, and Elo]], [[Stockfish]], [[Komodo]] <ref>[http://www.talkchess.com/forum/viewtopic.php?t=57890 Regan's latest: Depth of Satisficing] by Carl Lumma, [[CCC]], October 09, 2015</ref>

* [https://rjlipton.wordpress.com/2016/01/21/a-chess-firewall-at-zero/ A Chess Firewall at Zero?] by [[Kenneth W. Regan|Ken Regan]], [https://rjlipton.wordpress.com/ Gödel's Lost Letter and P=NP], January 21, 2016

===Purchase===

: [https://komodochess.com/downloads.htm Available Versions of Komodo]

===Interviews===

* [http://www.qualitychess.co.uk/blog/?p=2341 Quality Chess Blog » Q&A with Larry Kaufman], December 12, 2013

* [https://en.chessbase.com/post/komodo-8-deep-blue-revisited-part-one Komodo 8: Deep Blue revisited (part one)] by [[Albert Silver]], [[ChessBase|ChessBase News]], December 26, 2014 » [[Deep Blue]], [[Kasparov versus Deep Blue 1997]] <ref>[http://www.talkchess.com/forum/viewtopic.php?t=54759 Komodo 8: Deep Blue revisited (1/2)] by [[Graham Banks]], [[CCC]], December 27, 2014</ref>

* [https://rjlipton.wordpress.com/2014/12/28/the-new-chess-world-champion/ The New Chess World Champion] by [[Kenneth W. Regan|Ken Regan]], [http://rjlipton.wordpress.com/ Gödel's Lost Letter and P=NP], December 28, 2014 » [[Larry Kaufman]], [[TCEC Season 7]]

* [https://en.chessbase.com/post/komodo-8-deep-blue-revisited-part-two Komodo 8: Deep Blue revisited (part two)] by [[Albert Silver]], [[ChessBase|ChessBase News]], December 31, 2014

* [https://en.chessbase.com/post/komodo-8-deep-blue-revisited-part-three Komodo 8: Deep Blue revisited (part three)] by [[Albert Silver]], [[ChessBase|ChessBase News]], January 09, 2015