Isa
Isa, (ISA) [2]
a chess engine by Daniel Anulliero, written in C, and compliant to the Chess Engine Communication Protocol. ISA's development started in 2014 using the FirstChess source by Pham Hong Nguyen, and gradually evolved to an own engine with multiple search enhancements as well as evaluation features implemented over the time, also documented by its author's postings in CCC. Isa was first public released in October 2016 as version 1.9.8 [3] with steady improvements and fixes in subsequent versions.
Since November 2018, Isa 2.0.64 is available as Open Source under GitHub [4].
Contents
Features
Board Representation
- Mailbox
- 8x8 Board
- Piece-Lists (2.0.64)
Search
Evaluation
- Evaluation Hash Table
- Tapered Evaluation
- Material
- Bishop Pair
- Mobility
- Tempo
- Piece-Square Tables
- Pawn Structure
- Rooks on (Semi) Open Files
- Rook (and Queen) on Seventh
- King Safety
- King Queen Tropism
- Endgame
- KBNK
- KBBK
See also
Forum Posts
2014
- Tuning eval by Daniel Anulliero, CCC, September 01, 2014 » Automated Tuning
2015
- bad eval for passers ? by Daniel Anulliero, CCC, February 23, 2015
- about king attack by Daniel Anulliero, CCC, August 27, 2015 » King Safety
- high values of pst by Daniel Anulliero, CCC, September 09, 2015 » Piece-Square Tables
- A funny bug :-) by Daniel Anulliero, CCC, October 19, 2015
- Some test résults by Daniel Anulliero, CCC, December 05, 2015
2016
- Somethings wrong but where (lol) by Daniel Anulliero, CCC, January 20, 2016
- about hashtable by Daniel Anulliero, CCC, March 04, 2016
- hash eval, hash pawn or twice ? by Daniel Anulliero, CCC, March 19, 2016 » Evaluation Hash Table, Pawn Hash Table
- Evaluate the pieces mobility by Daniel Anulliero, CCC, April 25, 2016 » Mobility
- Futility prunning by Daniel Anulliero, CCC, August 11, 2016 » Futility Pruning, Reverse Futility Pruning
- Isa version 1.9.8 release by Daniel Anulliero, CCC, October 30, 2016
- Re: Isa version 1.9.8 release by Daniel Anulliero, CCC, December 10, 2016
- Endgame bug in Isa by Daniel Anulliero, CCC, December 15, 2016
2017 ...
- Isa 1.9.63 release by Daniel Anulliero, CCC, February 23, 2017
- Isa 1.9.68 release by Daniel Anulliero, CCC, April 01, 2017
- Isa 2.0.45 release by Daniel Anulliero, CCC, May 25, 2017
- Isa 2.0.61 release by Daniel Anulliero, CCC, December 17, 2017
- Isa 2_0_64 Release by Daniel Anulliero, CCC, April 01, 2018
- Isa 2.0.92.9 for Windows download link? by Norbert Raimund Leisner, CCC, January 09, 2019
External Links
Misc
- Isa from Wikipedia
- Isa (name) from Wikipedia
- Isa (Vorname) from Wikipedia.de (Given Name)
- ISA - Wiktionary
- Industry Standard Architecture from Wikipedia
- Intelligent speed adaptation from Wikipedia
- International Society of Automation from Wikipedia
References
- ↑ Isa Genzken - Window (Fenster, 1993), Middelheim Open Air Sculpture Museum, Photo by Funkyxian, August 9, 2016, Wikimedia Commons
- ↑ Re: Isa version 1.9.8 release by Gabor Szots, CCC, December 10, 2016
- ↑ Isa version 1.9.8 release by Daniel Anulliero, CCC, October 30, 2016
- ↑ GitHub - Dany1962/Isa: a winboard chess engine in C
- ↑ Features based on isa_2_0_64.zip\isa 2_0_64\ read me.odt