Difference between revisions of "Orion"
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Revision as of 22:29, 10 September 2020
Orion Constellation [1]
Orion,
an UCI compliant chess engine by David Carteau, written in C and first released in May 2014.
In August 2020, David Carteau published results using an own AVX2 NNUE implementation so far compatible with Stockfish NNUE nets,
with a huge improvement in playing strength. He is in the process to design and train his own NNUE [2].
Contents
Features
Board Representation
Search
- Iterative Deepening
- Aspiration Windows
- Alpha-Beta
- Principal Variation Search
- Transposition Table
- Selectivity
- Move Ordering
Evaluation
- NNUE (0.7.nnue)
- Automated Tuning by Linear Regression using Python scikit-learn (0.6) [4]
- Automated Tuning by PBIL (pre 0.6)
- Pawn Structure
- Isolated Pawns etc ...
- Passed Pawns
- Mobility
- Square Control
- Space
- King Safety
- Attacking King Zone
Misc
Forum Posts
- New free engine - Orion by Graham Banks, CCC, May 24, 2014
- New Orion release : v0.3 ! by David Carteau, CCC, April 03, 2016
- New Orion release : v0.4 ! by David Carteau, CCC, October 15, 2017
- New Orion release : v0.5 ! by David Carteau, CCC, June 21, 2018
- New Orion release : v0.6 ! by David Carteau, CCC, June 01, 2019
- Orion 0.7 release by David Carteau, CCC, July 04, 2020
- Orion 0.7 : NNUE experiment by David Carteau, CCC, August 19, 2020
External Links
Chess Engine
Misc
- Orion from Wikipedia
- Orion (mythology) from Wikipedia
- Orion (constellation) from Wikipedia
- Orion (comics) from Wikipedia
- Orion (sculpture) from Wikipedia University of Michigan
- Steps Ahead - Orion, Yin-Yang (1992), YouTube Video
- lineup: Mike Mainieri, Steve Smith, Jeff Andrews, Bendik Hofseth, Rachel Z
References
- ↑ deep sky image of the constellation Orion by Mouser, December 14 2004, Wikimedia Commons
- ↑ Re: Orion 0.7 : NNUE experiment by David Carteau, CCC, September 06, 2020
- ↑ based on Orion UCI chess engine
- ↑ 1.1. Linear Models — scikit-learn 0.23.2 documentation
