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Created page with "'''Home * People * Zach Wegner''' FILE:ZachWegnerWCCC2010.jpg|border|right|thumb|link=http://www.csvn.nl/index.php?option=com_content&view=article&id=472%..."
'''[[Main Page|Home]] * [[People]] * Zach Wegner'''
[[FILE:ZachWegnerWCCC2010.jpg|border|right|thumb|link=http://www.csvn.nl/index.php?option=com_content&view=article&id=472%3Afoto-impressie-wcccwcsc-kanazawa-japan&catid=51%3Atoernooien&Itemid=28&lang=en| Zach Wegner, [[WCCC 2010]] <ref>[http://www.csvn.nl/index.php?option=com_content&view=article&id=472%3Afoto-impressie-wcccwcsc-kanazawa-japan&catid=51%3Atoernooien&Itemid=28&lang=en Foto-impressie WCCC/WCSC Kanazawa, Japan] by [[Jan Krabbenbos]] from the [[CSVN|CSVN site]]</ref> ]]
'''Zach Wegner''',<br/>
an American software engineer and computer chess programmer based in [https://en.wikipedia.org/wiki/Austin,_Texas Austin, TX]. He has been involved in CC since starting his first program in 2002, at the age of 14 <ref>[https://www.stmintz.com/ccc/index.php?id=246067 BitBoard q] by [[Zach Wegner]], [[CCC]], August 18, 2002</ref>. He is the author of [[ZCT]], an [[:Category:Open Source|open source engine]] written in [[C]], and author of [[Rondo]], the continuation of [[Anthony Cozzie|Anthony Cozzie's]] [[Zappa]]. Zach has been an organizer here at [[Main Page|CPW]] when he was active in computerchess until 2011!
=Rybka Case=
Zach Wegner was skeptic by [[Vasik Rajlich|Vasik Rajlich's]] statements on the origins of [[Rybka|Rybka 1.0 beta]] and its influence from [[Fruit]] <ref>[http://www.talkchess.com/forum/viewtopic.php?t=23249 Questions for Vas] by Zach Wegner, [[CCC]], August 25, 2008</ref>, to investigate and compare disassembled Rybka with Fruit. He published some results on [[Evaluation|evaluation]] in 2010 <ref>[[File:ZW_Rybka_Fruit.pdf]]</ref>.
=Rondo=
In 2010, Zach collaborated with [[Anthony Cozzie]], who, still in computer chess retirement, has given control for further development of his massive parallel program [[Zappa]] to Zach. The new project [[Rondo]] <ref>[http://www.acoz.net/zappa/ Zappa Chess Engine]</ref> was registered for the [[WCCC 2010]] <ref>[https://www.game-ai-forum.org/icga-tournaments/program.php?id=58 Zappa's ICGA Tournaments]</ref>. Rondo became strong runner up in both the open hardware WCCC 2010 behind [[Rybka]], and the uniform hardware [[WCSC 2010]] close behind [[Shredder]]. Rondo was declared [[Rybka Controversy#2010|joint champion]] along with [[Thinker]] after the [[World Computer Chess Championship#RybkaDisqualification|disqualification]] of [[Rybka]] by the [[ICGA]] in June 2011.
=Forum Posts=
==2002 ...==
* [https://www.stmintz.com/ccc/index.php?id=246067 BitBoard q] by [[Zach Wegner]], [[CCC]], August 18, 2002 <ref>Zach's first post to [[CCC]], after starting his first engine at the tender age of 14</ref> » [[Bitboards]]
==2004 ...==
* [http://www.open-aurec.com/wbforum/viewtopic.php?f=4&t=171&start=143 Re: Attack table] by [[Zach Wegner]], [[Computer Chess Forums|Winboard Forum]], October 22, 2004 » [[Attack and Defend Maps]], [[Node Types]]
* [https://www.stmintz.com/ccc/index.php?id=417486 Re: Smallest chess program in chess is in basic] by [[Zach Wegner]], [[CCC]], March 19, 2005
==2006 ...==
* [http://www.open-aurec.com/wbforum/viewtopic.php?topic_view=threads&p=26851&t=4523 Zach's tricky 32-bit approach] by [[Zach Wegner]], [[Computer Chess Forums|Winboard Forum]], August 22, 2006 » [[Kindergarten Bitboards]]
* [http://www.open-aurec.com/wbforum/viewtopic.php?f=4&t=5623&p=27838 Yet another new bitboard move generation method] by [[Zach Wegner]], [[Computer Chess Forums|Winboard Forum]], September 22, 2006 » [[Titboards]]
==2008 ...==
* [http://www.talkchess.com/forum/viewtopic.php?t=19446 If making an SMP engine, do NOT use processes] by [[Zach Wegner]], [[CCC]], February 07, 2008 » [[Parallel Search]]
* [http://www.talkchess.com/forum/viewtopic.php?t=21343 Semi-Path Dependent Hashing: a semi-useless idea] by [[Zach Wegner]], [[CCC]], May 24, 2008 » [[Repetitions]]
* [http://www.talkchess.com/forum/viewtopic.php?t=22542 Old CCC archives?] by [[Zach Wegner]], [[CCC]], July 24, 2008
* [http://www.talkchess.com/forum/viewtopic.php?t=23118 Rybka 1.0 vs. Strelka] by [[Zach Wegner]], [[CCC]], August 19, 2008 » [[Rybka]], [[Strelka]]
* [http://www.talkchess.com/forum/viewtopic.php?t=23249 Questions for Vas] by [[Zach Wegner]], [[CCC]], August 25, 2008 » [[Vasik Rajlich]]
* [http://www.talkchess.com/forum/viewtopic.php?topic_view=threads&p=245932&t=26152 Re: Zobrist key random numbers] by [[Zach Wegner]], [[CCC]], January 22, 2009 » [[Zobrist Hashing]]
* [http://www.talkchess.com/forum/viewtopic.php?t=28212 ZCT 0.3.2500 released] by [[Zach Wegner]], [[CCC]], June 02, 2009
* [http://www.talkchess.com/forum/viewtopic.php?t=29269 Bit twiddlement question: greater of two popcounts] by [[Zach Wegner]], [[CCC]], August 06, 2009 » [[Bit-Twiddling]]
* [http://www.talkchess.com/forum/viewtopic.php?t=29333 Bit twiddling question, part 2: arbitrary bitscan order] by [[Zach Wegner]], [[CCC]], August 11, 2009
==2010 ...==
* [http://www.talkchess.com/forum/viewtopic.php?topic_view=threads&p=351606&t=34561 Re: DTS Structure] by [[Zach Wegner]], [[CCC]], May 29, 2010 » [[Iterative Search]]
* [http://www.talkchess.com/forum/viewtopic.php?t=34749 Zach, is this true?] by [[Gabor Szots]], [[CCC]], June 06, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=34782&start=7 Re: An extremely interesting topic...] by [[Zach Wegner]], [[CCC]], June 07, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=36174 WCCC games] by [[Zach Wegner]], [[CCC]], September 25, 2010 » [[WCCC 2010]]
* [http://www.talkchess.com/forum/viewtopic.php?t=40333 Haswell New Instructions] by [[Zach Wegner]], [[CCC]], September 09, 2011 » [[BMI2#PDEPBitboards|BMI2 PEXT/PDEP Bitboards]]
=External Links=
* [https://www.game-ai-forum.org/icga-tournaments/person.php?id=656 Zach Wegner's ICGA Tournaments]
* [https://github.com/zwegner zwegner (Zach Wegner) · GitHub]
=References=
<references />
'''[[People|Up one Level]]'''
[[Category:Chess Programmer|Wegner]]
[[FILE:ZachWegnerWCCC2010.jpg|border|right|thumb|link=http://www.csvn.nl/index.php?option=com_content&view=article&id=472%3Afoto-impressie-wcccwcsc-kanazawa-japan&catid=51%3Atoernooien&Itemid=28&lang=en| Zach Wegner, [[WCCC 2010]] <ref>[http://www.csvn.nl/index.php?option=com_content&view=article&id=472%3Afoto-impressie-wcccwcsc-kanazawa-japan&catid=51%3Atoernooien&Itemid=28&lang=en Foto-impressie WCCC/WCSC Kanazawa, Japan] by [[Jan Krabbenbos]] from the [[CSVN|CSVN site]]</ref> ]]
'''Zach Wegner''',<br/>
an American software engineer and computer chess programmer based in [https://en.wikipedia.org/wiki/Austin,_Texas Austin, TX]. He has been involved in CC since starting his first program in 2002, at the age of 14 <ref>[https://www.stmintz.com/ccc/index.php?id=246067 BitBoard q] by [[Zach Wegner]], [[CCC]], August 18, 2002</ref>. He is the author of [[ZCT]], an [[:Category:Open Source|open source engine]] written in [[C]], and author of [[Rondo]], the continuation of [[Anthony Cozzie|Anthony Cozzie's]] [[Zappa]]. Zach has been an organizer here at [[Main Page|CPW]] when he was active in computerchess until 2011!
=Rybka Case=
Zach Wegner was skeptic by [[Vasik Rajlich|Vasik Rajlich's]] statements on the origins of [[Rybka|Rybka 1.0 beta]] and its influence from [[Fruit]] <ref>[http://www.talkchess.com/forum/viewtopic.php?t=23249 Questions for Vas] by Zach Wegner, [[CCC]], August 25, 2008</ref>, to investigate and compare disassembled Rybka with Fruit. He published some results on [[Evaluation|evaluation]] in 2010 <ref>[[File:ZW_Rybka_Fruit.pdf]]</ref>.
=Rondo=
In 2010, Zach collaborated with [[Anthony Cozzie]], who, still in computer chess retirement, has given control for further development of his massive parallel program [[Zappa]] to Zach. The new project [[Rondo]] <ref>[http://www.acoz.net/zappa/ Zappa Chess Engine]</ref> was registered for the [[WCCC 2010]] <ref>[https://www.game-ai-forum.org/icga-tournaments/program.php?id=58 Zappa's ICGA Tournaments]</ref>. Rondo became strong runner up in both the open hardware WCCC 2010 behind [[Rybka]], and the uniform hardware [[WCSC 2010]] close behind [[Shredder]]. Rondo was declared [[Rybka Controversy#2010|joint champion]] along with [[Thinker]] after the [[World Computer Chess Championship#RybkaDisqualification|disqualification]] of [[Rybka]] by the [[ICGA]] in June 2011.
=Forum Posts=
==2002 ...==
* [https://www.stmintz.com/ccc/index.php?id=246067 BitBoard q] by [[Zach Wegner]], [[CCC]], August 18, 2002 <ref>Zach's first post to [[CCC]], after starting his first engine at the tender age of 14</ref> » [[Bitboards]]
==2004 ...==
* [http://www.open-aurec.com/wbforum/viewtopic.php?f=4&t=171&start=143 Re: Attack table] by [[Zach Wegner]], [[Computer Chess Forums|Winboard Forum]], October 22, 2004 » [[Attack and Defend Maps]], [[Node Types]]
* [https://www.stmintz.com/ccc/index.php?id=417486 Re: Smallest chess program in chess is in basic] by [[Zach Wegner]], [[CCC]], March 19, 2005
==2006 ...==
* [http://www.open-aurec.com/wbforum/viewtopic.php?topic_view=threads&p=26851&t=4523 Zach's tricky 32-bit approach] by [[Zach Wegner]], [[Computer Chess Forums|Winboard Forum]], August 22, 2006 » [[Kindergarten Bitboards]]
* [http://www.open-aurec.com/wbforum/viewtopic.php?f=4&t=5623&p=27838 Yet another new bitboard move generation method] by [[Zach Wegner]], [[Computer Chess Forums|Winboard Forum]], September 22, 2006 » [[Titboards]]
==2008 ...==
* [http://www.talkchess.com/forum/viewtopic.php?t=19446 If making an SMP engine, do NOT use processes] by [[Zach Wegner]], [[CCC]], February 07, 2008 » [[Parallel Search]]
* [http://www.talkchess.com/forum/viewtopic.php?t=21343 Semi-Path Dependent Hashing: a semi-useless idea] by [[Zach Wegner]], [[CCC]], May 24, 2008 » [[Repetitions]]
* [http://www.talkchess.com/forum/viewtopic.php?t=22542 Old CCC archives?] by [[Zach Wegner]], [[CCC]], July 24, 2008
* [http://www.talkchess.com/forum/viewtopic.php?t=23118 Rybka 1.0 vs. Strelka] by [[Zach Wegner]], [[CCC]], August 19, 2008 » [[Rybka]], [[Strelka]]
* [http://www.talkchess.com/forum/viewtopic.php?t=23249 Questions for Vas] by [[Zach Wegner]], [[CCC]], August 25, 2008 » [[Vasik Rajlich]]
* [http://www.talkchess.com/forum/viewtopic.php?topic_view=threads&p=245932&t=26152 Re: Zobrist key random numbers] by [[Zach Wegner]], [[CCC]], January 22, 2009 » [[Zobrist Hashing]]
* [http://www.talkchess.com/forum/viewtopic.php?t=28212 ZCT 0.3.2500 released] by [[Zach Wegner]], [[CCC]], June 02, 2009
* [http://www.talkchess.com/forum/viewtopic.php?t=29269 Bit twiddlement question: greater of two popcounts] by [[Zach Wegner]], [[CCC]], August 06, 2009 » [[Bit-Twiddling]]
* [http://www.talkchess.com/forum/viewtopic.php?t=29333 Bit twiddling question, part 2: arbitrary bitscan order] by [[Zach Wegner]], [[CCC]], August 11, 2009
==2010 ...==
* [http://www.talkchess.com/forum/viewtopic.php?topic_view=threads&p=351606&t=34561 Re: DTS Structure] by [[Zach Wegner]], [[CCC]], May 29, 2010 » [[Iterative Search]]
* [http://www.talkchess.com/forum/viewtopic.php?t=34749 Zach, is this true?] by [[Gabor Szots]], [[CCC]], June 06, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=34782&start=7 Re: An extremely interesting topic...] by [[Zach Wegner]], [[CCC]], June 07, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=36174 WCCC games] by [[Zach Wegner]], [[CCC]], September 25, 2010 » [[WCCC 2010]]
* [http://www.talkchess.com/forum/viewtopic.php?t=40333 Haswell New Instructions] by [[Zach Wegner]], [[CCC]], September 09, 2011 » [[BMI2#PDEPBitboards|BMI2 PEXT/PDEP Bitboards]]
=External Links=
* [https://www.game-ai-forum.org/icga-tournaments/person.php?id=656 Zach Wegner's ICGA Tournaments]
* [https://github.com/zwegner zwegner (Zach Wegner) · GitHub]
=References=
<references />
'''[[People|Up one Level]]'''
[[Category:Chess Programmer|Wegner]]
