REBEL (chess)
REBEL is a world champion chess program developed by Ed Schröder. Development of REBEL started in 1980 on a TRS-80, and it was ported many times to dedicated hardware and the fastest microprocessors of the day:
- 1980s – Running on a TRS-80, Apple II, and inside of Mephisto brand dedicated chess computers, it won the Dutch open computer chess championship four times.
- 1991 – Ported to the ARM ChessMachine and named Gideon, it won the World Microcomputer Chess Championship.
- 1992 – Gideon won the World Computer Chess Championship, the first time a microprocessor came ahead of a field of mainframes, supercomputers, and custom chess hardware.
- 1990s – REBEL was ported to MS-DOS and then Microsoft Windows and sold commercially
- 1997 – REBEL won a match with GM Arthur Yusupov 10.5–6.5, the first successful challenge of a chess grandmaster by a commercial program.
- 1998 – REBEL won a match with GM Viswanathan Anand 5–3 (but lost 0.5–1.5 in the standard time control section of the match). He was rated number two in the world at the time.
- 2004 – Ed Schröder retired, releasing the last version of REBEL as the freeware chess engine Pro Deo.
- 2022 - On January 12, 2022, Ed Schröder came out of retirement to release REBEL 14 as a free chess engine. It incorporates an efficiently updatable neural network in REBEL's evaluation function, along with a heavily modified version of Fruit's search.[4][5]
| Original author(s) | Ed Schröder |
|---|---|
| Initial release | 1980 |
| Stable release | |
| Type | Chess engine |
| License | GNU General Public License v3.0 (14 and after) proprietary commercial software (13 and before) |
| Website | rebel13 |
| This article is part of the series on |
| Chess programming |
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See also
References
- Ed Schröder (February 17, 2023). "rebel-16". HOME OF THE DUTCH REBEL. Archived from the original on June 22, 2023. Retrieved June 19, 2023.
- Ed Schröder (February 18, 2023). "Rebel 16.2 release". Prodeo Computer Chess Forum. Retrieved June 19, 2023.
- Steve Maughan (February 21, 2023). "Rebel 16.2: Impressive!". Computer Chess Club Forum. Retrieved June 19, 2023.
- Ed Schröder. "REBEL 14". HOME OF THE DUTCH REBEL. Archived from the original on June 22, 2023. Retrieved June 19, 2023.
- Ed Schröder (January 12, 2022). "Rebel 14". Computer Chess Club Forums. Retrieved June 19, 2022.
External links
- "Ed's recollection of REBEL's history". Archived from the original on 6 November 2020.
- "Wealth of information on the inner workings of a professional program". Archived from the original on 26 April 2011.
- Schröder, Ed. "How REBEL Plays Chess" (PDF). Archived from the original (PDF) on 6 November 2020.
- Rebel (Chess Programming Wiki)
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