Difference between revisions of "Invictus"
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an [[UCI]] compliant [[:Category:Open Source|open source]] chess engine by [[Edsel Apostol]], written in [[Cpp|C++]] and licensed under the [[Free Software Foundation#GPL|GPL v3.0]], first released in September 2018 <ref>[http://www.talkchess.com/forum3/viewtopic.php?f=2&t=68538 Invictus chess engine r228] by [[Edsel Apostol]], [[CCC]], September 29, 2018</ref>. | an [[UCI]] compliant [[:Category:Open Source|open source]] chess engine by [[Edsel Apostol]], written in [[Cpp|C++]] and licensed under the [[Free Software Foundation#GPL|GPL v3.0]], first released in September 2018 <ref>[http://www.talkchess.com/forum3/viewtopic.php?f=2&t=68538 Invictus chess engine r228] by [[Edsel Apostol]], [[CCC]], September 29, 2018</ref>. | ||
Invictus is influenced by other open source engines in particular [[Stockfish]], [[Ethereal]], [[Defenchess]], and [[Minic]] concerning [[Texel's Tuning Method]] <ref name="readme">[https://github.com/ed-apostol/InvictusChess/blob/master/README.md InvictusChess/README.md at master · ed-apostol/InvictusChess · GitHub]</ref>. | Invictus is influenced by other open source engines in particular [[Stockfish]], [[Ethereal]], [[Defenchess]], and [[Minic]] concerning [[Texel's Tuning Method]] <ref name="readme">[https://github.com/ed-apostol/InvictusChess/blob/master/README.md InvictusChess/README.md at master · ed-apostol/InvictusChess · GitHub]</ref>. | ||
| − | [[Tom Kerrigan]] of [[TSCP]] fame is given credit for sharing the [[ABDADA|Simplified ABDADA]] idea <ref>[http://www.tckerrigan.com/Chess/Parallel_Search/Simplified_ABDADA/ Simplified ABDADA] by [[Tom Kerrigan]]</ref>. | + | [[Tom Kerrigan]] of [[TSCP]] fame is given credit for sharing the [[ABDADA|Simplified ABDADA]] idea <ref>[http://www.tckerrigan.com/Chess/Parallel_Search/Simplified_ABDADA/ Simplified ABDADA] by [[Tom Kerrigan]]</ref>. |
| + | Invictus r324 had its tournament debut at [[TCEC Season 21]] in May 2021 and gained a respectable 50% score in its strong [[TCEC Season 21#Qual|Qualification League]]. | ||
=Features= | =Features= | ||
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* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=69754&start=409 Re: New engine releases 2019] (Invictus r305) by [[Edsel Apostol]], [[CCC]], December 05, 2019 | * [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=69754&start=409 Re: New engine releases 2019] (Invictus r305) by [[Edsel Apostol]], [[CCC]], December 05, 2019 | ||
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=76209&start=344 Re: New engine releases & news 2021] (Invictus r340) by [[Edsel Apostol]], [[CCC]], May 19, 2021 | * [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=76209&start=344 Re: New engine releases & news 2021] (Invictus r340) by [[Edsel Apostol]], [[CCC]], May 19, 2021 | ||
| + | * [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=76209&start=406 Re: New engine releases & news 2021] (Invictus r382) by [[Edsel Apostol]], [[CCC]], June 07, 2021 | ||
=External Links= | =External Links= | ||
Latest revision as of 21:55, 7 June 2021
Sol Invictus [1]
Invictus, (InvictusChess, Invictus Chess)
an UCI compliant open source chess engine by Edsel Apostol, written in C++ and licensed under the GPL v3.0, first released in September 2018 [2].
Invictus is influenced by other open source engines in particular Stockfish, Ethereal, Defenchess, and Minic concerning Texel's Tuning Method [3].
Tom Kerrigan of TSCP fame is given credit for sharing the Simplified ABDADA idea [4].
Invictus r324 had its tournament debut at TCEC Season 21 in May 2021 and gained a respectable 50% score in its strong Qualification League.
Contents
Features
Board Representation
Search
- Iterative Deepening
- Aspiration Windows
- Parallel Search using Threads
- Principal Variation Search
- Move Ordering
- Selectivity
Evaluation
Misc
- Texel's Tuning with Stochastic Gradient Descent using Adam
- Texel's Tuning with Local Search
See also
Forum Posts
- Invictus chess engine r228 by Edsel Apostol, CCC, September 29, 2018
- Re: New engine releases 2019 (Invictus r305) by Edsel Apostol, CCC, December 05, 2019
- Re: New engine releases & news 2021 (Invictus r340) by Edsel Apostol, CCC, May 19, 2021
- Re: New engine releases & news 2021 (Invictus r382) by Edsel Apostol, CCC, June 07, 2021
External Links
Chess Engine
Misc
- invictus - Wiktionary
- Invictus (disambiguation) from Wikipedia
- Invictus from Wikipedia
- Oxford Book of English Verse 1250-1900/Invictus - Wikisource
- Virgin Steele - Invictus (1998), YouTube Video
References
- ↑ Sol Invictus, a Byzantine mosaic of a Zodiac Wheel — from the 6th century ancient Beth Alpha synagogue. Sol Invictus from Wikipedia, Wikimedia Commons
- ↑ Invictus chess engine r228 by Edsel Apostol, CCC, September 29, 2018
- ↑ 3.0 3.1 InvictusChess/README.md at master · ed-apostol/InvictusChess · GitHub
- ↑ Simplified ABDADA by Tom Kerrigan
