Difference between revisions of "Günther Schrüfer"

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'''Günther Schrüfer''',<br/>
 
'''Günther Schrüfer''',<br/>
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a German computer scientist, chessplayer <ref>[http://ratings.fide.com/card.phtml?event=4608631 Schruefer, Guenther, Dr. FIDE Chess Profile]</ref> and computer chess programmer. He defended his M.Sc. on modeling [[Search Tree|Search Trees]] in Chess 1983 <ref>[[Günther Schrüfer]] ('''1983'''). Ein Modell für den Spielbaum beim Schach : Implementierung und Vergleich mit anderen Modellen. Braunschweig : TU</ref> and his Ph.D. on costs, qality and algorithms of [[Minimax|minimax search]] in 1988 <ref>[[Günther Schrüfer]] ('''1988'''). ''Minimax-Suchen : Kosten, Qualität und Algorithmen''. [https://en.wikipedia.org/wiki/Technical_University_of_Braunschweig TU Braunschweig] (German)</ref> at the [https://en.wikipedia.org/wiki/Technical_University_of_Braunschweig Technical University of Braunschweig]. In his 1988 paper ''Root Evaluation Errors: How they Arise and Propagate'' <ref>[[Ingo Althöfer]] ('''1988'''). ''Root Evaluation Errors: How they Arise and Propagate''. [[ICGA Journal#11_23|ICCA Journal, Vol. 11, Nos. 2/3]]</ref>, [[Ingo Althöfer]] used Schrüfer's model limited to regular binary two-valued trees of depth n, to demonstrate how root errors arose.  
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a German computer scientist, chessplayer <ref>[http://ratings.fide.com/card.phtml?event=4608631 Schruefer, Guenther, Dr. FIDE Chess Profile]</ref> and former computer chess programmer. He defended his M.Sc. on modeling [[Search Tree|Search Trees]] in Chess 1983 <ref>[[Günther Schrüfer]] ('''1983'''). Ein Modell für den Spielbaum beim Schach : Implementierung und Vergleich mit anderen Modellen. Braunschweig : TU</ref> and his Ph.D. on costs, qality and algorithms of [[Minimax|minimax search]] in 1988 <ref>[[Günther Schrüfer]] ('''1988'''). ''Minimax-Suchen : Kosten, Qualität und Algorithmen''. [https://en.wikipedia.org/wiki/Technical_University_of_Braunschweig TU Braunschweig] (German)</ref> at the [https://en.wikipedia.org/wiki/Technical_University_of_Braunschweig Technical University of Braunschweig]. In his 1988 paper ''Root Evaluation Errors: How they Arise and Propagate'' <ref>[[Ingo Althöfer]] ('''1988'''). ''Root Evaluation Errors: How they Arise and Propagate''. [[ICGA Journal#11_23|ICCA Journal, Vol. 11, Nos. 2/3]]</ref>, [[Ingo Althöfer]] used Schrüfer's model limited to regular binary two-valued trees of depth n, to demonstrate how root errors arose.  
  
 
=Chess Programs=
 
=Chess Programs=
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Along with [[Hans-Joachim Kraas]], Günther Schrüfer is co-author of the chess programs [[Bobby]], Bobby II and [[Doctor?]] <ref>[http://www.ajedrez-de-estilo.com.ar/int/Products/engines/doctor/index.htm Doctor? by Dr. Hans-Joachim Kraas and Dr. Gunther Schrüfer]</ref> <ref>[http://scleinzell.schachvereine.de/p_spielprogramme/fritz532.shtml Fritz 5.32 - mehr als nur ein Update!] by [[Peter Schreiner]] (German), [http://scleinzell.schachvereine.de/home/news.shtml Schachclub Leinzell]</ref> <ref>[http://www.schachversand.de/d/detail/software/76.html Doctor? 2.0 / Engine MacIntosh] from [[Schachversand Niggemann]]</ref> . He is co-author of ''Das große Computerschachbuch'' (German), describing chess programming topics, and the didactic chess program [[Demoschach]] written in [[Basic]].
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Along with [[Hans-Joachim Kraas]], Günther Schrüfer is co-author of the chess programs [[Bobby]], Bobby II and [[Doctor?]] . He is co-author of ''Das große Computerschachbuch'' (German), describing chess programming topics, and the didactic chess program [[Demoschach]] written in [[Basic]].
  
 
=Photos & Games=  
 
=Photos & Games=  

Revision as of 13:40, 26 June 2018

Home * People * Günther Schrüfer

Günther Schrüfer [1]

Günther Schrüfer,
a German computer scientist, chessplayer [2] and former computer chess programmer. He defended his M.Sc. on modeling Search Trees in Chess 1983 [3] and his Ph.D. on costs, qality and algorithms of minimax search in 1988 [4] at the Technical University of Braunschweig. In his 1988 paper Root Evaluation Errors: How they Arise and Propagate [5], Ingo Althöfer used Schrüfer's model limited to regular binary two-valued trees of depth n, to demonstrate how root errors arose.

Chess Programs

Along with Hans-Joachim Kraas, Günther Schrüfer is co-author of the chess programs Bobby, Bobby II and Doctor? . He is co-author of Das große Computerschachbuch (German), describing chess programming topics, and the didactic chess program Demoschach written in Basic.

Photos & Games

SchrueferKraasWeinerLang1986.JPG

Günther Schrüfer, Hans-Joachim Kraas, Ossi Weiner and Richard Lang [6]
WCCC 1986, round 4, Bobby - Mephisto X [7] 

[Event "WCCC 1996]
[Site "Cologne, Germany"]
[Date "1986.06.14"]
[Round "4"]
[White "Bobby"]
[Black "Mephisto X"]
[Result "1-0"]

1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.c4 Nb6 5.exd6 exd6 6.Nc3 Be7 7.h3 O-O 8.Nf3 Nc6 
9.Be2 Bf5 10.O-O Qd7 11.Bf4 Rae8 12.a4 Bf6 13.a5 Nc8 14.a6 b6 15.g4 Bxg4 
16.hxg4 Qxg4+ 17.Bg3 Nxd4 18.Nxd4 Qxd4 19.Qc2 h6 20.Rfd1 Qc5 21.Nb5 Be5 
22.Rd5 Qc6 23.Bxe5 Rxe5 24.Rxe5 dxe5 25.Bg4 Nd6 26.Nxa7 Qc5 27.Bd7 e4 
28.Nb5 Nxb5 29.Bxb5 Qg5+ 30.Kf1 Qh4 31.Rd1 Qh1+ 32.Ke2 Qf3+ 33.Ke1 Qh1+ 
34.Kd2 Qg2 35.Kc1 Qg6 36.Qb3 c6 37.Ba4 c5 38.Qg3 Ra8 39.Qxg6 fxg6 40.Bb5 g5 
41.Rd7 h5 42.a7 e3 43.fxe3 Rf8 44.Bc6 h4 45.a8=Q Rxa8 46.Bxa8 h3 47.Rd5 1-0

See also

Selected Publications

External Links

References

  1. ↑ WCCC 1986 Video capture at 11:33, interview by Albrecht Fölsing during the round 4, Bobby - Mephisto X game
  2. ↑ Schruefer, Guenther, Dr. FIDE Chess Profile
  3. ↑ Günther Schrüfer (1983). Ein Modell für den Spielbaum beim Schach : Implementierung und Vergleich mit anderen Modellen. Braunschweig : TU
  4. ↑ Günther Schrüfer (1988). Minimax-Suchen : Kosten, Qualität und Algorithmen. TU Braunschweig (German)
  5. ↑ Ingo Althöfer (1988). Root Evaluation Errors: How they Arise and Propagate. ICCA Journal, Vol. 11, Nos. 2/3
  6. ↑ László Lindner, A SZÁMÍTÓGÉPES SAKK KÉPEKBEN című melléklete - The pictures of the Beginning of Chess Computers
  7. ↑ Cologne 1986 - Chess - Round 4 - Game 4 (ICGA Tournaments)
  8. ↑ Ein Modell für den Spielbaum beim Schach : Implementierung und Vergleich mit anderen Modellen from WorldCat.org
  9. ↑ Dap Hartmann (1987). R. Bartel, H.J. Kraas and G. Schrüfer: Das grosse Computerschach-Buch. ICCA Journal, Vol. 10, No. 2 (Review)
  10. ↑ Minimax-Suchen : Kosten, Qualität und Algorithmen from WorldCat.org

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