Ziggy IS
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Ziggy Stardust [1]
Ziggy,
an UCI compliant open source chess engine by Hrafn Eiríksson, written in Java.
Ziggy represents the board with piece-lists supported by 15x8 vector attacks, and applies state of the art search enhancements like null move pruning, late move reductions, multi-cut, PVS,
static exchange evaluation and a two-level transposition table,
and served as test-bed for search experiments as topic in Eiríksson's B.Sc. thesis Investigation of Multi-Cut Pruning in Game-Tree Search [2].
Eiríksson re-investigated multi-cut pruning with Ziggy, and found an enhancement to apply it only at expected Cut-nodes confirmed by the transposition table, that is a probe indicates a beta-cutoff without sufficient draft stored.
Contents
Namesake
- Ziggy by Henk Kuyer and Auke Punter
Publications
- Hrafn Eiríksson (2011). Investigation of Multi-Cut Pruning in Game-Tree Search. B.Sc. thesis, Reykjavík University, advisor Yngvi Björnsson, pdf
Forum Posts
- Ziggy 0.7 by Hrafn Eiriksson (Iceland) by Norbert Raimund Leisner, CCC, March 06, 201
- Ziggy 0.7 JA in test by Sylwy, CCC, March 07, 2012
External Links
Chess Engine
- krummi/ChessEngine · GitHub
- Index of /chess/engines/Jim Ablett/ZIGGY by Jim Ablett, hosted by Kirill Kryukov
- Ziggy 0.7 in CCRL 40/4
Misc
- Ziggy from Wikipedia
- Ziggy (comic strip) from Wikipedia
- Ziggy Stardust from Wikipedia
- The Rise and Fall of Ziggy Stardust and the Spiders from Mars from Wikipedia
- - Ziggy Stardust, live 1972 , YouTube Video
References
- ↑ David Bowie in the early 1970s, by Rik Walton, Ziggy Stardust (character) from Wikipedia
- ↑ Hrafn Eiríksson (2011). Investigation of Multi-Cut Pruning in Game-Tree Search. B.Sc. thesis, Reykjavík University, pdf
