Fortress (Engine)
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Buhen fortress [1]
Fortress,
a Chess Engine Communication Protocol compliant chess engine by Alessandro Damiani, written in C, first released in October 1998 [2]. Fortress pioneered in Rotated Indices, a deconcentrated version of rotated bitboards. Alessandro once mentioned improving a version of Schrüfer's "most selective" quiescence search [3], found in Schrüfer's Ph.D. thesis Minimax-Suchen [4].
Contents
Technical Details
- Bitboards Rotated Indices
- Fail-Soft Alpha-Beta
- Iterative Deepening
- Aspiration Windows
- Null Move Pruning
- Search Extensions
- Transposition Table
- Killer Heuristic
- History Heuristic
- Evaluation mostly calculated incrementally
See also
- Fortress (Chess term)
- Gk
- Rotated Indices
- Stonewall
- Ziggurat
Forum Posts
- futility cut-offs by Alessandro Damiani, rgcc, November 14, 1997
- New Version: FORTRESS V1.5, the new Morphy? by Alessandro Damiani, CCC, January 15, 1999
- Re: Home page for Fortress! ToDo: Opening book, ... by Alessandro Damiani, CCC, September 09, 1999
- Fortress 1.62 is available ! by Frank Quisinsky, Winboard Forum, May 22, 2000
- Fortress 1.62 and Draw by 50 moves rule ? by Brice Boissel, Winboard Forum, May 08, 2002
External Links
Chess Engine
- Engine Download List from Ron Murawski's Computer-Chess Wiki
- Fortress « G 6
- Fortress 1.62 in CCRL 40/4
Chess
Misc
- Fortress (programming language) - Wikipedia
- Fortification from Wikipedia
- Fort (disambiguation) from Wikipedia
References
- ↑ Artists impression of the battlements at Buhen fortress in Ancient Egypt about 1800 BC, Source: Franck Monnier (2010). Les forteresses égyptiennes. Du Prédynastique au Nouvel Empire, collection Connaissance de l'Égypte ancienne. Safran (éditions), Bruxelles, 978-2-87457-033-9, Defensive wall from Wikipedia
- ↑ Fortress from WBEC Ridderkerk
- ↑ futility cut-offs by Alessandro Damiani, rgcc, November 14, 1997
- ↑ Günther Schrüfer (1988). Minimax-Suchen : Kosten, Qualität und Algorithmen. TU Braunschweig (German)
- ↑ based on Engine Download List from Ron Murawski's Computer-Chess Wiki, Fortress 1.62.zip / readme.doc
