Difference between revisions of "Peter Karrer"

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(Created page with "'''Home * People * Peter Karrer''' '''Peter Karrer''', (October 7, 1955 - November 20, 2010 <ref>Information provided by MarkLefler, January 23, 2013</r...")
 
 
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'''[[Main Page|Home]] * [[People]] * Peter Karrer'''
 
'''[[Main Page|Home]] * [[People]] * Peter Karrer'''
  
'''Peter Karrer''', (October 7, 1955 - November 20, 2010 <ref>Information provided by [[MarkLefler]], January 23, 2013</ref> )<br/>
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'''Peter Karrer''', (October 7, 1955 - November 20, 2010 <ref>Information provided by [[Mark Lefler]], January 23, 2013</ref> )<br/>
 
was a Swiss computer scientist affiliated with [[ETH Zurich]] and as chess player <ref>[http://www.svwinterthur.ch/schachwoche07/ 7. Winterthurer Schachwoche 2007]</ref> member at [https://de.wikipedia.org/wiki/Schachgesellschaft_Winterthur Schachgesellschaft Winterthur] also playing in the German Chess Landesliga at chess club [https://en.wikipedia.org/wiki/Engen,_Germany Engen] <ref>[http://bsv-ergebnisdienst.de/index.php?p1=0:mm:LL6-09:10B04&saison=09 BSV Ergebnisdienst - Landesliga Region Schwarzwald/Bodensee 2009/2010 - SK Engen]</ref> <ref>[http://bsv-ergebnisdienst.de/index.php?p1=0:mm:LL6-10:10B04&saison=10 BSV Ergebnisdienst - Landesliga Region Schwarzwald/Bodensee 2010/2011 - SK Engen]</ref>.  
 
was a Swiss computer scientist affiliated with [[ETH Zurich]] and as chess player <ref>[http://www.svwinterthur.ch/schachwoche07/ 7. Winterthurer Schachwoche 2007]</ref> member at [https://de.wikipedia.org/wiki/Schachgesellschaft_Winterthur Schachgesellschaft Winterthur] also playing in the German Chess Landesliga at chess club [https://en.wikipedia.org/wiki/Engen,_Germany Engen] <ref>[http://bsv-ergebnisdienst.de/index.php?p1=0:mm:LL6-09:10B04&saison=09 BSV Ergebnisdienst - Landesliga Region Schwarzwald/Bodensee 2009/2010 - SK Engen]</ref> <ref>[http://bsv-ergebnisdienst.de/index.php?p1=0:mm:LL6-10:10B04&saison=10 BSV Ergebnisdienst - Landesliga Region Schwarzwald/Bodensee 2010/2011 - SK Engen]</ref>.  
After the [https://en.wikipedia.org/wiki/Kasparov_versus_the_World Kasparov versus the World] game in 1999, Peter Karrer constructed a specialized [[Endgame Tablebases|tablebase]] for the purpose of fully understanding the KQQKQP and KQPKQP endgames. With the aid of the tablebase, [https://en.wikipedia.org/wiki/Irina_Krush Irina Krush] and [[Kenneth Wingate Regan|Ken Regan]] were able to prove that the position after the World Team's 50th move was drawn with best play on both sides <ref>[http://www.cse.buffalo.edu/~regan/chess/K-W/ Kasparov Versus the World: The Great Internet Match]</ref> <ref>[https://en.wikipedia.org/wiki/Irina_Krush Irina Krush], [[Kenneth Wingate Regan|Ken Regan]] ('''1999'''). ''[http://www.cse.buffalo.edu/~regan/chess/K-W/KHR99i.html The Greatest Game in the History of Chess]''. A Special Report by Irina Krush, Official MSN Game Analyst, [http://www.cse.buffalo.edu/~regan/chess/K-W/KHR99ii.html part 2], [http://www.cse.buffalo.edu/~regan/chess/K-W/Q-ending.html part 3] with [http://www.chessgames.com/perl/chessplayer?pid=123710 Paul Hodges]</ref>. Both [[Garry Kasparov|Kasparov]] and the bulletin board suspected that the position was drawn, but as the further course of the game proved, no one fully understood the position at the time.  
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After the [https://en.wikipedia.org/wiki/Kasparov_versus_the_World Kasparov versus the World] game in 1999, Peter Karrer constructed a specialized [[Endgame Tablebases|tablebase]] for the purpose of fully understanding the KQQKQP and KQPKQP endgames. With the aid of the tablebase, [https://en.wikipedia.org/wiki/Irina_Krush Irina Krush] and [[Kenneth W. Regan|Ken Regan]] were able to prove that the position after the World Team's 50th move was drawn with best play on both sides <ref>[http://www.cse.buffalo.edu/~regan/chess/K-W/ Kasparov Versus the World: The Great Internet Match]</ref> <ref>[https://en.wikipedia.org/wiki/Irina_Krush Irina Krush], [[Kenneth W. Regan|Ken Regan]] ('''1999'''). ''[http://www.cse.buffalo.edu/~regan/chess/K-W/KHR99i.html The Greatest Game in the History of Chess]''. A Special Report by Irina Krush, Official MSN Game Analyst, [http://www.cse.buffalo.edu/~regan/chess/K-W/KHR99ii.html part 2], [http://www.cse.buffalo.edu/~regan/chess/K-W/Q-ending.html part 3] with [http://www.chessgames.com/perl/chessplayer?pid=123710 Paul Hodges]</ref>. Both [[Garry Kasparov|Kasparov]] and the bulletin board suspected that the position was drawn, but as the further course of the game proved, no one fully understood the position at the time.  
  
 
=Maximals=
 
=Maximals=
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=Selected Publications=  
 
=Selected Publications=  
<ref>[http://ilk.uvt.nl/icga/journal/docs/References.pdf ICGA Reference Database] (pdf)</ref>  
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<ref>[[ICGA Journal#RefDB|ICGA Reference Database]]</ref>  
 
* [[Peter Karrer]] ('''2000'''). ''KQQKQP and KQPKQP≈''. [[ICGA Journal#23_2|ICGA Journal, Vol. 23, No. 2]] <ref>[https://en.wikipedia.org/wiki/Kasparov_versus_the_World Kasparov versus the World from Wikipedia]</ref>
 
* [[Peter Karrer]] ('''2000'''). ''KQQKQP and KQPKQP≈''. [[ICGA Journal#23_2|ICGA Journal, Vol. 23, No. 2]] <ref>[https://en.wikipedia.org/wiki/Kasparov_versus_the_World Kasparov versus the World from Wikipedia]</ref>
 
* [[Guy Haworth]], [[Peter Karrer]], [[John Tamplin]], [[Christoph Wirth]] ('''2001'''). ''[http://centaur.reading.ac.uk/4581/ 3-5-man chess: Maximals and mzugs]''. [[ICGA Journal#24_4|ICGA Journal, Vol. 24, No. 4]]
 
* [[Guy Haworth]], [[Peter Karrer]], [[John Tamplin]], [[Christoph Wirth]] ('''2001'''). ''[http://centaur.reading.ac.uk/4581/ 3-5-man chess: Maximals and mzugs]''. [[ICGA Journal#24_4|ICGA Journal, Vol. 24, No. 4]]
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<references />
 
<references />
 
'''[[People|Up one level]]'''
 
'''[[People|Up one level]]'''
[[Category:Chess Player]]
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[[Category:Chess Player|Karrer]]

Latest revision as of 16:42, 16 November 2020

Home * People * Peter Karrer

Peter Karrer, (October 7, 1955 - November 20, 2010 [1] )
was a Swiss computer scientist affiliated with ETH Zurich and as chess player [2] member at Schachgesellschaft Winterthur also playing in the German Chess Landesliga at chess club Engen [3] [4]. After the Kasparov versus the World game in 1999, Peter Karrer constructed a specialized tablebase for the purpose of fully understanding the KQQKQP and KQPKQP endgames. With the aid of the tablebase, Irina Krush and Ken Regan were able to prove that the position after the World Team's 50th move was drawn with best play on both sides [5] [6]. Both Kasparov and the bulletin board suspected that the position was drawn, but as the further course of the game proved, no one fully understood the position at the time.

Maximals

Karrer has mined Endgame Tablebases to produce complete lists of [7] :

  • maxDTM positions and data: 1-0 and 0-1, wtm and btm,
  • maxDTM and all mutual zugzwangs: three types, positions and data.

Data on percentage results, maximals and mutual zugzwangs has been filed and made available on the web, as have the DTM EGTs [8]. Most notably was his finding of a mate in 262 in KRNKNN [9].

Selected Publications

[10]

External Links

References

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