Difference between revisions of "Halogen"
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'''Halogen''',<br/> | '''Halogen''',<br/> | ||
an [[UCI]] compliant [[:Category:Open Source|open source chess engine]] by [[Kieren Pearson]], written in [[Cpp|C++]], licensed under the [[Free Software Foundation#GPL|GPL v3]] and first released on [https://en.wikipedia.org/wiki/GitHub GitHub] in June 2019 <ref>[https://github.com/KierenP/Halogen/releases/tag/v2.3 Release Halogen 2.3 · KierenP/Halogen · GitHub]</ref>. | an [[UCI]] compliant [[:Category:Open Source|open source chess engine]] by [[Kieren Pearson]], written in [[Cpp|C++]], licensed under the [[Free Software Foundation#GPL|GPL v3]] and first released on [https://en.wikipedia.org/wiki/GitHub GitHub] in June 2019 <ref>[https://github.com/KierenP/Halogen/releases/tag/v2.3 Release Halogen 2.3 · KierenP/Halogen · GitHub]</ref>. | ||
| − | Since version 7 in | + | Since version 7 in September 2020, Halogen features an own, [[Incremental Updates|incrementally updated]] [[NNUE]] for its [[Evaluation Function|evaluation function]], inspired by [[Stockfish NNUE]]. |
Halogen 8 features a larger network than Halogen 8, but runs significantly faster due to improvements and optimisations, best if compiled for [[AVX2]] instructions. | Halogen 8 features a larger network than Halogen 8, but runs significantly faster due to improvements and optimisations, best if compiled for [[AVX2]] instructions. | ||
Its development and testing was supported on the [[OpenBench]] framework. Networks are trained through a private, from scratch [[C]] implementation created in collaboration with [[Andrew Grant]] <ref>[https://github.com/KierenP/Halogen/blob/master/README.md Halogen/README.md at master · KierenP/Halogen · GitHub]</ref>. | Its development and testing was supported on the [[OpenBench]] framework. Networks are trained through a private, from scratch [[C]] implementation created in collaboration with [[Andrew Grant]] <ref>[https://github.com/KierenP/Halogen/blob/master/README.md Halogen/README.md at master · KierenP/Halogen · GitHub]</ref>. | ||
Revision as of 18:30, 29 October 2020
Br···O halogen bonds [1]
Halogen,
an UCI compliant open source chess engine by Kieren Pearson, written in C++, licensed under the GPL v3 and first released on GitHub in June 2019 [2].
Since version 7 in September 2020, Halogen features an own, incrementally updated NNUE for its evaluation function, inspired by Stockfish NNUE.
Halogen 8 features a larger network than Halogen 8, but runs significantly faster due to improvements and optimisations, best if compiled for AVX2 instructions.
Its development and testing was supported on the OpenBench framework. Networks are trained through a private, from scratch C implementation created in collaboration with Andrew Grant [3].
Contents
Features
Board Representation
Search
- Iterative Deepening
- Aspiration Windows
- Lazy SMP
- NegaScout
- Transposition Table
- Move Ordering
- Selectivity
- Check Extensions if SEE >= 0 or PV
- Passed Pawn Extensions (7th, 2nd rank)
- Null Move Pruning
- Mate Distance Pruning
- Futility Pruning
- Late Move Reductions
- Quiescence Search
Evaluation
- Evaluation Hash Table
- NNUE (>= Halogen 7)
Misc
Forum Posts
2019
- Requirements for a new chess engine by Kieren Pearson, CCRL Discussion Board, December 09, 2019
- Re: New engine releases 2019 by Günther Simon, CCC, December 22, 2019 » Halogen 2.7.3
2020 ...
- Re: New engine releases 2020 by Gabor Szots, CCC, January 06, 2020 » Halogen 3.0
- Halogen 4 release by Kieren Pearson, CCRL Discussion Board, June 22, 2020
- Re: New engine releases 2020 by Kieren Pearson, CCC, June 22, 2020 » Halogen 4
- Re: New engine releases 2020 by Kieren Pearson, CCC, July 14, 2020 » Halogen 5
- Re: New engine releases 2020 by Kieren Pearson, CCC, August 12, 2020 » Halogen 6
- Re: New engine releases 2020 by Kieren Pearson, CCC, September 22, 2020 » Halogen 7
- Re: New engine releases 2020 by Kieren Pearson, CCC, October 27, 2020 » Halogen 8
External Links
Chess Engine
Misc
- halogen - Wiktionary
- Halogen from Wikipedia
- Halogen (disambiguation) from Wikipedia
- Halogen lamp from Wikipedia
- Halogen - The Letter, Sirens (2006), YouTube Video
References
- ↑ Packing of silsesquixane molecules in crystal lattice including Br···O halogen bonds, Image by Wisznu101, May 21,2018, Wikimedia Commons
- ↑ Release Halogen 2.3 · KierenP/Halogen · GitHub
- ↑ Halogen/README.md at master · KierenP/Halogen · GitHub
- ↑ Features based on Release Halogen 8 · KierenP/Halogen · GitHub
