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Created page with "'''Home * People * Johannes Zwanzger''' FILE:johannesZwanzger.jpg|border|right|thumb|229px|link=http://www.mathe2.uni-bayreuth.de/20er/|Johannes Zwanzger..."
'''[[Main Page|Home]] * [[People]] * Johannes Zwanzger'''
[[FILE:johannesZwanzger.jpg|border|right|thumb|229px|link=http://www.mathe2.uni-bayreuth.de/20er/|Johannes Zwanzger <ref>[http://www.mathe2.uni-bayreuth.de/20er/ Dipl.-Math. Johannes Zwanzger] Chair for Mathematics II [https://en.wikipedia.org/wiki/University_of_Bayreuth University of Bayreuth]</ref> ]]
'''Johannes Zwanzger''',<br/>
a German mathematician with a Ph.D. from [https://en.wikipedia.org/wiki/University_of_Bayreuth University of Bayreuth], chess programmer and chess player <ref>[http://www.newinchess.com/Zwanzger__Johannes-ip-45958.html Johannes Zwanzger] at [http://www.newinchess.com/ New In Chess]</ref>, since 2013 playing for [http://de.wikipedia.org/wiki/FC_Bayern_M%C3%BCnchen_%28Schach%29 FC Bayern München] in the German [https://en.wikipedia.org/wiki/Chess_Bundesliga Chess Bundesliga] <ref>[http://www.fcbayern-schach.de/index.php?option=com_content&view=article&id=359&catid=141&Itemid=489 1. Bundesliga 2013/2014 - Mannschaftsaufstellung]</ref> <ref>[https://de.wikipedia.org/wiki/Mannschaftskader_der_deutschen_Schachbundesliga_2013/14#FC_Bayern_M.C3.BCnchen Mannschaftskader der deutschen Schachbundesliga 2013/14 - FC Bayern München - Wikipedia.de]</ref>. His research interests include construction of discrete structures, especially [https://en.wikipedia.org/wiki/Linear_code linear codes], the use of [https://en.wikipedia.org/wiki/Heuristics heuristics] in general, and chess programming. Johannes is author of the chess program [[Jonny]], which competed at all [[World Computer Chess Championship|World Computer Chess Championships]] since [[WCCC 2003|Graz 2003]], and became '''World Computer Chess Champion''' at the [[WCCC 2015]] in [[Leiden University|Leiden]].
=Jonny in Graz=
Honorable sportsmanship intended, Johannes was subject of a difficult and controversial TD-decision during the [[WCCC 2003]] in Graz. In the last round game, [[Shredder]] versus Jonny, Shredder had a winning position, already about to announce mate in X. There would nothing wrong for Johannes to resign on behalf of Jonny. Apparently due to a bug, Shredder allowed a [[Repetitions|threefold repetition]], still high plus score. Johannes, while his engine had a zero score, and the external GUI a "Threefold repetition" Infobox popped up, decided that Info is no draw-claim and continued the game by making the move over the board. TD [[Jaap van den Herik]] first miss understood, assuming Johannes would claim a draw rather than asking to continue <ref>[http://en.chessbase.com/post/fritz-and-shredder-win-computer-che-championship Fritz and Shredder win Computer Chess Championship], [[ChessBase|ChessBase News]], November 30, 2003</ref> <ref>[https://www.stmintz.com/ccc/index.php?id=334429 Shredder wins in Graz after controversy] by [[Darse Billings]], [[Computer Chess Forums|CCC]], December 09, 2003</ref> .
<pre>
[Event "WCCC 2003"]
[Site "Graz, Austria"]
[Date "2003.11.29"]
[Round "11"]
[White "Shredder"]
[Black "Jonny"]
[Result "1-0"]
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 Be7 7.f4 O-O 8.Qf3 e5
9.Nf5 Bxf5 10.exf5 e4 11.Qh3 h6 12.Bh4 Qc7 13.g4 d5 14.g5 hxg5 15.fxg5 Nh5
16.O-O-O Rc8 17.Bg3 Nf4 18.Bxf4 Qxf4+ 19.Kb1 Bxg5 20.f6 Nc6 21.fxg7 Kxg7
22.Be2 d4 23.Rhf1 Qh4 24.Qf5 dxc3 25.Rg1 Kf8 26.Rxg5 Ne7 27.Qf6 Qh7
28.Rd7 Ng6 29.Rxb7 Qg7 30.Qd6+ Kg8 31.Rxf7 Qxf7 32.Rxg6+ Kh7 33.Rg4 Rab8
34.Rh4+ Kg8 35.Rg4+ Kh7 36.Rh4+ Kg8 37.Rg4+ Kh7 38.Bc4 Rxb2+ 39.Ka1 Rxc4
40.Rh4+ Kg8 41.Qd8+ Qf8 42.Rg4+ Kf7 43.Qd7+ Qe7 44.Rf4+ Kg6 45.Qxe7 Rxa2+
46.Kxa2 Ra4+ 47.Kb3 Rb4+ 48.Kxb4 a5+ 49.Kxc3 a4 50.Qf6+ Kh5 51.Rh4# 1-0
</pre>
=Jonny in Leiden=
[[FILE:JohannesJaapShannonTrophy2015.jpg|none|border|text-bottom|640px|link=https://icga.leidenuniv.nl/?page_id=1497]]
[[WCCC 2015]] in [[Leiden University|Leiden]], [[Jaap van den Herik]] awards [[Johannes Zwanzger]] with the [[Shannon Trophy]] <ref>Prize giving ceremony photos by [[Jan Krabbenbos]]</ref>
=Selected Publications=
==2004 ...==
* [[Johannes Zwanzger]] ('''2004'''). ''The 12th Computer-Chess Championship''. [[ICGA Journal#27_3|ICGA Journal, Vol. 27, No. 3]] » [[WCCC 2004]]
* [[Johannes Zwanzger]] ('''2004'''). ''Das Geheimnis der Schachprogramme''. spektrum 3/04 (German), [http://www.mathe2.uni-bayreuth.de/20er/pdf/schachprogramme.pdf pdf]
* [[Johannes Zwanzger]] ('''2007'''). ''Computergestützte Konstruktion von linearen Codes mit hoher Minimaldistanz unter Verwendung heuristischer Methoden''. Diplomarbeit im Fach Mathematik (German), [http://www.mathe2.uni-bayreuth.de/20er/pdf/heuristic_codes.pdf pdf]
* [[Johannes Zwanzger]] ('''2007'''). ''Heuristic Construction Of "Good" Error-Correcting Linear Codes''. [https://en.wikipedia.org/wiki/University_of_Bayreuth University of Bayreuth], Talk at the [http://www.math.tu-berlin.de/%7Efelsner/KolKom07/index.html Kolloquium über Kombinatorik], Magdeburg, November 17th, 2007, [http://www.mathe2.uni-bayreuth.de/20er/pdf/kolkom07_talk.pdf pdf] <ref>[https://en.wikipedia.org/wiki/Linear_code Linear code from Wikipedia]</ref>
* [[Johannes Zwanzger]] ('''2008'''). ''Heuristic Construction of Linear Codes with prescribed Automorphism Group''. [http://www.ma.uva.es/%7Es3cm/ Soria Summer School] July 2008, [http://www.mathe2.uni-bayreuth.de/20er/pdf/soria08_talk.pdf pdf]
* [http://www.algorithm.uni-bayreuth.de/de/team/kohnert_axel/index.html Axel Kohnert], [[Johannes Zwanzger]] ('''2009'''). ''[http://www.algorithm.uni-bayreuth.de/de/publications/2009/New_linear_codes_with_prescribed_group_of_automorphisms_found_by_heuristic_search/index.html New linear codes with prescribed group of automorphisms found by heuristic search]''. [http://www.itsoc.org/resources/journals/amc Advances in Mathematics of Communications], Vol. 3, No. 2
==2010 ...==
* [[Johannes Zwanzger]], [http://www.mathe2.uni-bayreuth.de/michaelk/ Michael Kiermaier] ('''2010'''). ''A new series of Z4-linear codes of high minimum Lee distance derived from the Kerdock codes''. <ref>[https://en.wikipedia.org/wiki/Lee_distance Lee distance from Wikipedia]</ref> <ref>[http://mint.sbg.ac.at/desc_CKerdock.html MinT - Kerdock Codes]</ref>
* [[Johannes Zwanzger]], [http://www.mathe2.uni-bayreuth.de/michaelk/ Michael Kiermaier] ('''2010'''). ''A non-free Z4-linear code of high minimum Lee distance''. [http://www.mathe2.uni-bayreuth.de/20er/pdf/alcoma2010talk.pdf pdf]
* [[Johannes Zwanzger]] ('''2011'''). ''Computergestützte Suche nach optimalen linearen Codes über endlichen Kettenringen unter Verwendung heuristischer Methoden''. Ph.D. thesis, [https://en.wikipedia.org/wiki/University_of_Bayreuth University of Bayreuth], advisor [[Mathematician#AKerber|Adalbert Kerber]] (German) [ftp://ftp.mathe2.uni-bayreuth.de/DIPLOM/diss_zwanzger.pdf pdf]
=Tournament Reports=
{{Jonny Reports}}
=External Links=
* [http://genealogy.math.ndsu.nodak.edu/id.php?id=169205 The Mathematics Genealogy Project - Johannes Zwanzger]
* [https://www.game-ai-forum.org/icga-tournaments/person.php?id=105 Johannes Zwanzger's ICGA Tournaments]
* [http://www.algorithm.uni-bayreuth.de/en/team/Zwanzger_Johannes/ Dr. Johannes Zwanzger] at [https://en.wikipedia.org/wiki/University_of_Bayreuth University of Bayreuth]
* [http://www.mathe2.uni-bayreuth.de/20er/ Homepage of Johannes Zwanzger] at [https://en.wikipedia.org/wiki/University_of_Bayreuth University of Bayreuth]
* [http://www.chessgames.com/perl/ezsearch.pl?search=Johannes+Zwanzger Johannes Zwanzger's Games] from [http://www.chessgames.com/index.html chessgames.com]
* [http://www.fcbayern-schach.de/index.php?option=com_content&view=article&id=508:computerschach-wm-2015&catid=336&Itemid=500 "Jonny" (Johannes Zwanzger) ist Weltmeister!], [https://de.wikipedia.org/wiki/FC_Bayern_M%C3%BCnchen_%28Schach%29 FC Bayern München - Schachabteilung], July 05, 2015 (German)
* [https://www.uni-bayreuth.de/de/universitaet/presse/archiv/2015/122-Schachweltmeister-ITS.pdf Wir sind Weltmeister] (pdf) [https://en.wikipedia.org/wiki/University_of_Bayreuth University of Bayreuth] press release, July 10, 2015 (German)
=References=
<references />
'''[[People|Up one level]]'''
[[FILE:johannesZwanzger.jpg|border|right|thumb|229px|link=http://www.mathe2.uni-bayreuth.de/20er/|Johannes Zwanzger <ref>[http://www.mathe2.uni-bayreuth.de/20er/ Dipl.-Math. Johannes Zwanzger] Chair for Mathematics II [https://en.wikipedia.org/wiki/University_of_Bayreuth University of Bayreuth]</ref> ]]
'''Johannes Zwanzger''',<br/>
a German mathematician with a Ph.D. from [https://en.wikipedia.org/wiki/University_of_Bayreuth University of Bayreuth], chess programmer and chess player <ref>[http://www.newinchess.com/Zwanzger__Johannes-ip-45958.html Johannes Zwanzger] at [http://www.newinchess.com/ New In Chess]</ref>, since 2013 playing for [http://de.wikipedia.org/wiki/FC_Bayern_M%C3%BCnchen_%28Schach%29 FC Bayern München] in the German [https://en.wikipedia.org/wiki/Chess_Bundesliga Chess Bundesliga] <ref>[http://www.fcbayern-schach.de/index.php?option=com_content&view=article&id=359&catid=141&Itemid=489 1. Bundesliga 2013/2014 - Mannschaftsaufstellung]</ref> <ref>[https://de.wikipedia.org/wiki/Mannschaftskader_der_deutschen_Schachbundesliga_2013/14#FC_Bayern_M.C3.BCnchen Mannschaftskader der deutschen Schachbundesliga 2013/14 - FC Bayern München - Wikipedia.de]</ref>. His research interests include construction of discrete structures, especially [https://en.wikipedia.org/wiki/Linear_code linear codes], the use of [https://en.wikipedia.org/wiki/Heuristics heuristics] in general, and chess programming. Johannes is author of the chess program [[Jonny]], which competed at all [[World Computer Chess Championship|World Computer Chess Championships]] since [[WCCC 2003|Graz 2003]], and became '''World Computer Chess Champion''' at the [[WCCC 2015]] in [[Leiden University|Leiden]].
=Jonny in Graz=
Honorable sportsmanship intended, Johannes was subject of a difficult and controversial TD-decision during the [[WCCC 2003]] in Graz. In the last round game, [[Shredder]] versus Jonny, Shredder had a winning position, already about to announce mate in X. There would nothing wrong for Johannes to resign on behalf of Jonny. Apparently due to a bug, Shredder allowed a [[Repetitions|threefold repetition]], still high plus score. Johannes, while his engine had a zero score, and the external GUI a "Threefold repetition" Infobox popped up, decided that Info is no draw-claim and continued the game by making the move over the board. TD [[Jaap van den Herik]] first miss understood, assuming Johannes would claim a draw rather than asking to continue <ref>[http://en.chessbase.com/post/fritz-and-shredder-win-computer-che-championship Fritz and Shredder win Computer Chess Championship], [[ChessBase|ChessBase News]], November 30, 2003</ref> <ref>[https://www.stmintz.com/ccc/index.php?id=334429 Shredder wins in Graz after controversy] by [[Darse Billings]], [[Computer Chess Forums|CCC]], December 09, 2003</ref> .
<pre>
[Event "WCCC 2003"]
[Site "Graz, Austria"]
[Date "2003.11.29"]
[Round "11"]
[White "Shredder"]
[Black "Jonny"]
[Result "1-0"]
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 Be7 7.f4 O-O 8.Qf3 e5
9.Nf5 Bxf5 10.exf5 e4 11.Qh3 h6 12.Bh4 Qc7 13.g4 d5 14.g5 hxg5 15.fxg5 Nh5
16.O-O-O Rc8 17.Bg3 Nf4 18.Bxf4 Qxf4+ 19.Kb1 Bxg5 20.f6 Nc6 21.fxg7 Kxg7
22.Be2 d4 23.Rhf1 Qh4 24.Qf5 dxc3 25.Rg1 Kf8 26.Rxg5 Ne7 27.Qf6 Qh7
28.Rd7 Ng6 29.Rxb7 Qg7 30.Qd6+ Kg8 31.Rxf7 Qxf7 32.Rxg6+ Kh7 33.Rg4 Rab8
34.Rh4+ Kg8 35.Rg4+ Kh7 36.Rh4+ Kg8 37.Rg4+ Kh7 38.Bc4 Rxb2+ 39.Ka1 Rxc4
40.Rh4+ Kg8 41.Qd8+ Qf8 42.Rg4+ Kf7 43.Qd7+ Qe7 44.Rf4+ Kg6 45.Qxe7 Rxa2+
46.Kxa2 Ra4+ 47.Kb3 Rb4+ 48.Kxb4 a5+ 49.Kxc3 a4 50.Qf6+ Kh5 51.Rh4# 1-0
</pre>
=Jonny in Leiden=
[[FILE:JohannesJaapShannonTrophy2015.jpg|none|border|text-bottom|640px|link=https://icga.leidenuniv.nl/?page_id=1497]]
[[WCCC 2015]] in [[Leiden University|Leiden]], [[Jaap van den Herik]] awards [[Johannes Zwanzger]] with the [[Shannon Trophy]] <ref>Prize giving ceremony photos by [[Jan Krabbenbos]]</ref>
=Selected Publications=
==2004 ...==
* [[Johannes Zwanzger]] ('''2004'''). ''The 12th Computer-Chess Championship''. [[ICGA Journal#27_3|ICGA Journal, Vol. 27, No. 3]] » [[WCCC 2004]]
* [[Johannes Zwanzger]] ('''2004'''). ''Das Geheimnis der Schachprogramme''. spektrum 3/04 (German), [http://www.mathe2.uni-bayreuth.de/20er/pdf/schachprogramme.pdf pdf]
* [[Johannes Zwanzger]] ('''2007'''). ''Computergestützte Konstruktion von linearen Codes mit hoher Minimaldistanz unter Verwendung heuristischer Methoden''. Diplomarbeit im Fach Mathematik (German), [http://www.mathe2.uni-bayreuth.de/20er/pdf/heuristic_codes.pdf pdf]
* [[Johannes Zwanzger]] ('''2007'''). ''Heuristic Construction Of "Good" Error-Correcting Linear Codes''. [https://en.wikipedia.org/wiki/University_of_Bayreuth University of Bayreuth], Talk at the [http://www.math.tu-berlin.de/%7Efelsner/KolKom07/index.html Kolloquium über Kombinatorik], Magdeburg, November 17th, 2007, [http://www.mathe2.uni-bayreuth.de/20er/pdf/kolkom07_talk.pdf pdf] <ref>[https://en.wikipedia.org/wiki/Linear_code Linear code from Wikipedia]</ref>
* [[Johannes Zwanzger]] ('''2008'''). ''Heuristic Construction of Linear Codes with prescribed Automorphism Group''. [http://www.ma.uva.es/%7Es3cm/ Soria Summer School] July 2008, [http://www.mathe2.uni-bayreuth.de/20er/pdf/soria08_talk.pdf pdf]
* [http://www.algorithm.uni-bayreuth.de/de/team/kohnert_axel/index.html Axel Kohnert], [[Johannes Zwanzger]] ('''2009'''). ''[http://www.algorithm.uni-bayreuth.de/de/publications/2009/New_linear_codes_with_prescribed_group_of_automorphisms_found_by_heuristic_search/index.html New linear codes with prescribed group of automorphisms found by heuristic search]''. [http://www.itsoc.org/resources/journals/amc Advances in Mathematics of Communications], Vol. 3, No. 2
==2010 ...==
* [[Johannes Zwanzger]], [http://www.mathe2.uni-bayreuth.de/michaelk/ Michael Kiermaier] ('''2010'''). ''A new series of Z4-linear codes of high minimum Lee distance derived from the Kerdock codes''. <ref>[https://en.wikipedia.org/wiki/Lee_distance Lee distance from Wikipedia]</ref> <ref>[http://mint.sbg.ac.at/desc_CKerdock.html MinT - Kerdock Codes]</ref>
* [[Johannes Zwanzger]], [http://www.mathe2.uni-bayreuth.de/michaelk/ Michael Kiermaier] ('''2010'''). ''A non-free Z4-linear code of high minimum Lee distance''. [http://www.mathe2.uni-bayreuth.de/20er/pdf/alcoma2010talk.pdf pdf]
* [[Johannes Zwanzger]] ('''2011'''). ''Computergestützte Suche nach optimalen linearen Codes über endlichen Kettenringen unter Verwendung heuristischer Methoden''. Ph.D. thesis, [https://en.wikipedia.org/wiki/University_of_Bayreuth University of Bayreuth], advisor [[Mathematician#AKerber|Adalbert Kerber]] (German) [ftp://ftp.mathe2.uni-bayreuth.de/DIPLOM/diss_zwanzger.pdf pdf]
=Tournament Reports=
{{Jonny Reports}}
=External Links=
* [http://genealogy.math.ndsu.nodak.edu/id.php?id=169205 The Mathematics Genealogy Project - Johannes Zwanzger]
* [https://www.game-ai-forum.org/icga-tournaments/person.php?id=105 Johannes Zwanzger's ICGA Tournaments]
* [http://www.algorithm.uni-bayreuth.de/en/team/Zwanzger_Johannes/ Dr. Johannes Zwanzger] at [https://en.wikipedia.org/wiki/University_of_Bayreuth University of Bayreuth]
* [http://www.mathe2.uni-bayreuth.de/20er/ Homepage of Johannes Zwanzger] at [https://en.wikipedia.org/wiki/University_of_Bayreuth University of Bayreuth]
* [http://www.chessgames.com/perl/ezsearch.pl?search=Johannes+Zwanzger Johannes Zwanzger's Games] from [http://www.chessgames.com/index.html chessgames.com]
* [http://www.fcbayern-schach.de/index.php?option=com_content&view=article&id=508:computerschach-wm-2015&catid=336&Itemid=500 "Jonny" (Johannes Zwanzger) ist Weltmeister!], [https://de.wikipedia.org/wiki/FC_Bayern_M%C3%BCnchen_%28Schach%29 FC Bayern München - Schachabteilung], July 05, 2015 (German)
* [https://www.uni-bayreuth.de/de/universitaet/presse/archiv/2015/122-Schachweltmeister-ITS.pdf Wir sind Weltmeister] (pdf) [https://en.wikipedia.org/wiki/University_of_Bayreuth University of Bayreuth] press release, July 10, 2015 (German)
=References=
<references />
'''[[People|Up one level]]'''
