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Günther Schrüfer,
a German computer scientist, chessplayer [1] [2] and computer chess programmer. He made his MSc on modeling Search Trees in Chess 1983 [3] and his Ph.D. on Costs, Quality 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 arise.
Günther Schrüfer [6]

Chess Programs

Along with Hans-Joachim Kraas, Günther Schrüfer is co-author of the chess programs Bobby, Bobby II and Doctor? [7] [8] [9] . He is co-author of Das große Computerschachbuch (German), describing chess programming topics, and the didactic chess program Demoschach written in Basic.

Photos & Games

Günther Schrüfer, Hans-Joachim Kraas, Ossi Weiner and Richard Lang [10]
WCCC 1986, round 4, Bobby - Mephisto X [11]
[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


  1. ^ Guenther Schruefer chess games from 365Chess.com
  2. ^ The chess games of Guenther Schruefer from chessgames.com
  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. ^ WCCC 1986 Video capture at 11:33, interview by Albrecht Fölsing during the round 4, Bobby - Mephisto X game
  7. ^ Doctor? by Dr. Hans-Joachim Kraas and Dr. Gunther Schrüfer
  8. ^ Fritz 5.32 - mehr als nur ein Update! by Peter Schreiner (German), Schachclub Leinzell
  9. ^ Doctor? 2.0 / Engine MacIntosh from Schachversand Niggemann
  10. ^ László Lindner, A SZÁMÍTÓGÉPES SAKK KÉPEKBEN című melléklete - The pictures of the Beginning of Chess Computers
  11. ^ Cologne 1986 - Chess - Round 4 - Game 4 (ICGA Tournaments)
  12. ^ Ein Modell für den Spielbaum beim Schach : Implementierung und Vergleich mit anderen Modellen from WorldCat.org
  13. ^ Dap Hartmann (1987). R. Bartel, H.J. Kraas and G. Schrüfer: Das grosse Computerschach-Buch. ICCA Journal, Vol. 10, No. 2 (Review)
  14. ^ Minimax-Suchen : Kosten, Qualität und Algorithmen from WorldCat.org

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