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Created page with "'''Home * Engines * Ziggy IS''' border|right|thumb|200px| Ziggy Stardust <ref>[[:Category:David Bowie|David Bowie in the earl..."
'''[[Main Page|Home]] * [[Engines]] * Ziggy IS'''
[[FILE:David-Bowie Early.jpg|border|right|thumb|200px| Ziggy Stardust <ref>[[:Category:David Bowie|David Bowie]] in the early 1970s, by Rik Walton, [https://en.wikipedia.org/wiki/Ziggy_Stardust_(character) Ziggy Stardust (character) from Wikipedia]</ref> ]]
'''Ziggy''',<br/>
an [[UCI]] compliant [[:Category:Open Source|open source chess engine]] by [[Hrafn Eiríksson]], written in [[Java]].
Ziggy [[Board Representation|represents the board]] with [[Piece-Lists|piece-lists]] supported by [[Vector Attacks|15x8 vector attacks]], and applies state of the art [[Search|search]] enhancements like [[Null Move Pruning|null move pruning]], [[Late Move Reductions|late move reductions]], [[Multi-Cut|multi-cut]], [[Principal Variation Search|PVS]],
[[Static Exchange Evaluation|static exchange evaluation]] and a two-level [[Transposition Table|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'' <ref>[[Hrafn Eiríksson]] ('''2011'''). ''Investigation of Multi-Cut Pruning in Game-Tree Search''. B.Sc. thesis, [https://en.wikipedia.org/wiki/Reykjav%C3%ADk_University Reykjavík University], [https://skemman.is/bitstream/1946/9180/1/research-report.pdf pdf]</ref>.
Eiríksson re-investigated multi-cut pruning with Ziggy, and found an enhancement to apply it only at expected [[Node Types#CUT|Cut-nodes]] confirmed by the transposition table, that is a probe indicates a [[Beta-Cutoff|beta-cutoff]] without sufficient [[Depth|draft]] stored.
=Namesake=
* [[Ziggy]] by [[Henk Kuyer]] and [[Auke Punter]]
=Publications=
* [[Hrafn Eiríksson]] ('''2011'''). ''Investigation of Multi-Cut Pruning in Game-Tree Search''. B.Sc. thesis, [https://en.wikipedia.org/wiki/Reykjav%C3%ADk_University Reykjavík University], advisor [[Yngvi Björnsson]], [https://skemman.is/bitstream/1946/9180/1/research-report.pdf pdf]
=Forum Posts=
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=42767 Ziggy 0.7 by Hrafn Eiriksson (Iceland)] by [[Norbert Raimund Leisner]], [[CCC]], March 06, 201
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=42792 Ziggy 0.7 JA in test] by Sylwy, [[CCC]], March 07, 2012
=External Links=
==Chess Engine==
* [https://github.com/krummi/ChessEngine krummi/ChessEngine · GitHub]
* [http://kirr.homeunix.org/chess/engines/Jim%20Ablett/ZIGGY/ Index of /chess/engines/Jim Ablett/ZIGGY] by [[Jim Ablett]], hosted by [[Kirill Kryukov]]
* [http://ccrl.chessdom.com/ccrl/404/cgi/engine_details.cgi?print=Details&each_game=1&eng=Ziggy%200.7 Ziggy 0.7] in [[CCRL|CCRL 40/4]]
==Misc==
* [https://en.wikipedia.org/wiki/Ziggy Ziggy from Wikipedia]
* [https://en.wikipedia.org/wiki/Ziggy_%28comic_strip%29 Ziggy (comic strip) from Wikipedia]
* [https://en.wikipedia.org/wiki/David_Bowie#Ziggy_Stardust Ziggy Stardust from Wikipedia]
* [https://en.wikipedia.org/wiki/The_Rise_and_Fall_of_Ziggy_Stardust_and_the_Spiders_from_Mars The Rise and Fall of Ziggy Stardust and the Spiders from Mars from Wikipedia]
* [[Category:David Bowie|David Bowie]] - [https://en.wikipedia.org/wiki/Ziggy_Stardust_(song) Ziggy Stardust], live 1972 , [https://en.wikipedia.org/wiki/YouTube YouTube] Video
: {{#evu:https://www.youtube.com/watch?v=3qrOvBuWJ-c|alignment=left|valignment=top}}
=References=
<references />
'''[[Engines|Up one level]]'''
[[Category:Open Source]]
[[Category:UCI]]
[[Category:Java]]
[[Category:Thesis]]
[[Category:Comics]]
[[Category:Fiction]]
[[Category:Given Name]]
[[Category:Namesake]]
[[Category:David Bowie]]
[[FILE:David-Bowie Early.jpg|border|right|thumb|200px| Ziggy Stardust <ref>[[:Category:David Bowie|David Bowie]] in the early 1970s, by Rik Walton, [https://en.wikipedia.org/wiki/Ziggy_Stardust_(character) Ziggy Stardust (character) from Wikipedia]</ref> ]]
'''Ziggy''',<br/>
an [[UCI]] compliant [[:Category:Open Source|open source chess engine]] by [[Hrafn Eiríksson]], written in [[Java]].
Ziggy [[Board Representation|represents the board]] with [[Piece-Lists|piece-lists]] supported by [[Vector Attacks|15x8 vector attacks]], and applies state of the art [[Search|search]] enhancements like [[Null Move Pruning|null move pruning]], [[Late Move Reductions|late move reductions]], [[Multi-Cut|multi-cut]], [[Principal Variation Search|PVS]],
[[Static Exchange Evaluation|static exchange evaluation]] and a two-level [[Transposition Table|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'' <ref>[[Hrafn Eiríksson]] ('''2011'''). ''Investigation of Multi-Cut Pruning in Game-Tree Search''. B.Sc. thesis, [https://en.wikipedia.org/wiki/Reykjav%C3%ADk_University Reykjavík University], [https://skemman.is/bitstream/1946/9180/1/research-report.pdf pdf]</ref>.
Eiríksson re-investigated multi-cut pruning with Ziggy, and found an enhancement to apply it only at expected [[Node Types#CUT|Cut-nodes]] confirmed by the transposition table, that is a probe indicates a [[Beta-Cutoff|beta-cutoff]] without sufficient [[Depth|draft]] stored.
=Namesake=
* [[Ziggy]] by [[Henk Kuyer]] and [[Auke Punter]]
=Publications=
* [[Hrafn Eiríksson]] ('''2011'''). ''Investigation of Multi-Cut Pruning in Game-Tree Search''. B.Sc. thesis, [https://en.wikipedia.org/wiki/Reykjav%C3%ADk_University Reykjavík University], advisor [[Yngvi Björnsson]], [https://skemman.is/bitstream/1946/9180/1/research-report.pdf pdf]
=Forum Posts=
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=42767 Ziggy 0.7 by Hrafn Eiriksson (Iceland)] by [[Norbert Raimund Leisner]], [[CCC]], March 06, 201
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=42792 Ziggy 0.7 JA in test] by Sylwy, [[CCC]], March 07, 2012
=External Links=
==Chess Engine==
* [https://github.com/krummi/ChessEngine krummi/ChessEngine · GitHub]
* [http://kirr.homeunix.org/chess/engines/Jim%20Ablett/ZIGGY/ Index of /chess/engines/Jim Ablett/ZIGGY] by [[Jim Ablett]], hosted by [[Kirill Kryukov]]
* [http://ccrl.chessdom.com/ccrl/404/cgi/engine_details.cgi?print=Details&each_game=1&eng=Ziggy%200.7 Ziggy 0.7] in [[CCRL|CCRL 40/4]]
==Misc==
* [https://en.wikipedia.org/wiki/Ziggy Ziggy from Wikipedia]
* [https://en.wikipedia.org/wiki/Ziggy_%28comic_strip%29 Ziggy (comic strip) from Wikipedia]
* [https://en.wikipedia.org/wiki/David_Bowie#Ziggy_Stardust Ziggy Stardust from Wikipedia]
* [https://en.wikipedia.org/wiki/The_Rise_and_Fall_of_Ziggy_Stardust_and_the_Spiders_from_Mars The Rise and Fall of Ziggy Stardust and the Spiders from Mars from Wikipedia]
* [[Category:David Bowie|David Bowie]] - [https://en.wikipedia.org/wiki/Ziggy_Stardust_(song) Ziggy Stardust], live 1972 , [https://en.wikipedia.org/wiki/YouTube YouTube] Video
: {{#evu:https://www.youtube.com/watch?v=3qrOvBuWJ-c|alignment=left|valignment=top}}
=References=
<references />
'''[[Engines|Up one level]]'''
[[Category:Open Source]]
[[Category:UCI]]
[[Category:Java]]
[[Category:Thesis]]
[[Category:Comics]]
[[Category:Fiction]]
[[Category:Given Name]]
[[Category:Namesake]]
[[Category:David Bowie]]
