25,161
edits
Changes
Created page with "'''Home * People * Günther Schrüfer''' FILE:Schruefer.JPG|border|right|thumb|link=WCCC 1986#Video| Günther Schrüfer <ref>[[WCCC 1986#Video|WCCC 1986 V..."
'''[[Main Page|Home]] * [[People]] * Günther Schrüfer'''
[[FILE:Schruefer.JPG|border|right|thumb|link=WCCC 1986#Video| Günther Schrüfer <ref>[[WCCC 1986#Video|WCCC 1986 Video]] capture at 11:33, interview by [https://en.wikipedia.org/wiki/Albrecht_F%C3%B6lsing Albrecht Fölsing] during the round 4, [[Bobby]] - [[Mephisto|Mephisto X]] game</ref> ]]
'''Günther Schrüfer''',<br/>
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.
=Chess Programs=
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]].
=Photos & Games=
[[FILE:SchrueferKraasWeinerLang1986.JPG|none|border|text-bottom]]
[[Günther Schrüfer]], [[Hans-Joachim Kraas]], [[Ossi Weiner]] and [[Richard Lang]] <ref>[[László Lindner]], A SZÁMÍTÓGÉPES SAKK KÉPEKBEN című melléklete - The pictures of the Beginning of Chess Computers</ref> <br/>
[[WCCC 1986]], round 4, [[Bobby]] - [[Mephisto|Mephisto X]] <ref>[https://www.game-ai-forum.org/icga-tournaments/round.php?tournament=62&round=4&id=4 Cologne 1986 - Chess - Round 4 - Game 4 (ICGA Tournaments)]</ref>
<pre>
[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
</pre>
=See also=
* [[WCCC 1986#Video|WCCC 1986 Video]]
=Selected Publications=
* [[Günther Schrüfer]] ('''1983'''). ''Ein Modell für den Spielbaum beim Schach : Implementierung und Vergleich mit anderen Modellen''. [https://en.wikipedia.org/wiki/Technical_University_of_Braunschweig TU Braunschweig] (German) <ref>[http://www.worldcat.org/oclc/66233252&referer=brief_results Ein Modell für den Spielbaum beim Schach : Implementierung und Vergleich mit anderen Modellen] from [http://www.worldcat.org/ WorldCat.org]</ref>
* [http://www.rainerbartel.de/ Rainer Bartel], [[Hans-Joachim Kraas]], [[Günther Schrüfer]] ('''1985'''). ''[https://www.c64-wiki.de/wiki/Das_grosse_Computerschachbuch Das große Computerschachbuch]''. [https://en.wikipedia.org/wiki/Data_Becker Data Becker] (German) from [http://www.amazon.de/Das-gro%C3%9Fe-Computerschachbuch-Rainer-Bartel/dp/3890111173 amazon.de] <ref>[[Dap Hartmann]] ('''1987'''). ''R. Bartel, H.J. Kraas and G. Schrüfer: Das grosse Computerschach-Buch''. [[ICGA Journal#10_2|ICCA Journal, Vol. 10, No. 2]] (Review)</ref>
* [[Günther Schrüfer]] ('''1986'''). ''Presence and Absence of Pathology on Game Trees''. [[Advances in Computer Chess 4]]
* [[Günther Schrüfer]] ('''1988'''). ''Minimax-Suchen : Kosten, Qualität und Algorithmen''. Ph.D. thesis, [https://en.wikipedia.org/wiki/Technical_University_of_Braunschweig TU Braunschweig] (German) <ref>[http://www.worldcat.org/oclc/246856479&referer=brief_results Minimax-Suchen : Kosten, Qualität und Algorithmen] from [http://www.worldcat.org/ WorldCat.org]</ref>
* [[Ingo Althöfer]] ('''1988'''). Günther Schrüfer: Minimax-suchen: Kosten, Qualität und Algorithmen. [[ICGA Journal#11_4|ICCA Journal, Vol. 11, No. 4]] (Review)
* [[Günther Schrüfer]] ('''1989'''). ''A Strategic Quiescence Search''. [[ICGA Journal#12_1|ICCA Journal, Vol. 12, No. 1]]
=External Links=
* [http://ratings.fide.com/card.phtml?event=4608631 Schruefer, Guenther, Dr. FIDE Chess Profile]
* [https://www.game-ai-forum.org/icga-tournaments/person.php?id=204 Günther Schrüfer's ICGA Tournaments]
=References=
<references />
'''[[People|Up one level]]'''
[[FILE:Schruefer.JPG|border|right|thumb|link=WCCC 1986#Video| Günther Schrüfer <ref>[[WCCC 1986#Video|WCCC 1986 Video]] capture at 11:33, interview by [https://en.wikipedia.org/wiki/Albrecht_F%C3%B6lsing Albrecht Fölsing] during the round 4, [[Bobby]] - [[Mephisto|Mephisto X]] game</ref> ]]
'''Günther Schrüfer''',<br/>
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.
=Chess Programs=
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]].
=Photos & Games=
[[FILE:SchrueferKraasWeinerLang1986.JPG|none|border|text-bottom]]
[[Günther Schrüfer]], [[Hans-Joachim Kraas]], [[Ossi Weiner]] and [[Richard Lang]] <ref>[[László Lindner]], A SZÁMÍTÓGÉPES SAKK KÉPEKBEN című melléklete - The pictures of the Beginning of Chess Computers</ref> <br/>
[[WCCC 1986]], round 4, [[Bobby]] - [[Mephisto|Mephisto X]] <ref>[https://www.game-ai-forum.org/icga-tournaments/round.php?tournament=62&round=4&id=4 Cologne 1986 - Chess - Round 4 - Game 4 (ICGA Tournaments)]</ref>
<pre>
[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
</pre>
=See also=
* [[WCCC 1986#Video|WCCC 1986 Video]]
=Selected Publications=
* [[Günther Schrüfer]] ('''1983'''). ''Ein Modell für den Spielbaum beim Schach : Implementierung und Vergleich mit anderen Modellen''. [https://en.wikipedia.org/wiki/Technical_University_of_Braunschweig TU Braunschweig] (German) <ref>[http://www.worldcat.org/oclc/66233252&referer=brief_results Ein Modell für den Spielbaum beim Schach : Implementierung und Vergleich mit anderen Modellen] from [http://www.worldcat.org/ WorldCat.org]</ref>
* [http://www.rainerbartel.de/ Rainer Bartel], [[Hans-Joachim Kraas]], [[Günther Schrüfer]] ('''1985'''). ''[https://www.c64-wiki.de/wiki/Das_grosse_Computerschachbuch Das große Computerschachbuch]''. [https://en.wikipedia.org/wiki/Data_Becker Data Becker] (German) from [http://www.amazon.de/Das-gro%C3%9Fe-Computerschachbuch-Rainer-Bartel/dp/3890111173 amazon.de] <ref>[[Dap Hartmann]] ('''1987'''). ''R. Bartel, H.J. Kraas and G. Schrüfer: Das grosse Computerschach-Buch''. [[ICGA Journal#10_2|ICCA Journal, Vol. 10, No. 2]] (Review)</ref>
* [[Günther Schrüfer]] ('''1986'''). ''Presence and Absence of Pathology on Game Trees''. [[Advances in Computer Chess 4]]
* [[Günther Schrüfer]] ('''1988'''). ''Minimax-Suchen : Kosten, Qualität und Algorithmen''. Ph.D. thesis, [https://en.wikipedia.org/wiki/Technical_University_of_Braunschweig TU Braunschweig] (German) <ref>[http://www.worldcat.org/oclc/246856479&referer=brief_results Minimax-Suchen : Kosten, Qualität und Algorithmen] from [http://www.worldcat.org/ WorldCat.org]</ref>
* [[Ingo Althöfer]] ('''1988'''). Günther Schrüfer: Minimax-suchen: Kosten, Qualität und Algorithmen. [[ICGA Journal#11_4|ICCA Journal, Vol. 11, No. 4]] (Review)
* [[Günther Schrüfer]] ('''1989'''). ''A Strategic Quiescence Search''. [[ICGA Journal#12_1|ICCA Journal, Vol. 12, No. 1]]
=External Links=
* [http://ratings.fide.com/card.phtml?event=4608631 Schruefer, Guenther, Dr. FIDE Chess Profile]
* [https://www.game-ai-forum.org/icga-tournaments/person.php?id=204 Günther Schrüfer's ICGA Tournaments]
=References=
<references />
'''[[People|Up one level]]'''
