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Schneider [1]

the first German chess program developed since 1965 by two math students at University of Stuttgart, Hans-Jochen Schneider and Kurt Fischer. Initially written in a assembly language dubbed TEXAS (Telefunken Externcode Assembler) for a Telefunken TR-4 mainframe computer, it was later ported to run on a IBM System 360. Fischer-Schneider participated at the First GI Computer Chess Tournament 1975 with a 50% score [2] , and in 1973 gained some publicity when it played and lost to Paul Keres and Boris Spassky during their visit at the GMD-Forschungszentrum, Schloss Birlinghoven in Sankt Augustin [3] .


Fischer-Schneider was a for that time typical Shannon Type B program using "plausible" move generation. The move selection was applied through recursive eliminiation of moves compromising material safety. The evaluation was quite sophisticated, considering material, attacked and defended pieces for a swap-off algorithm, mobility, square control and king-piece tropism. Special feature was the ability of the program to recognize draws by repetition, already maintaining and traversing a list of positions until the last irreversible move [4] .

Selected Games

Boris Spassky - Fischer-Schneider, GMD-Forschungszentrum, Schloss Birlinghoven in Sankt Augustin [5].

[Event "GMD Demo Match"]
[Site "Sankt Augustin"]
[Date "1973.06.05"]
[Round "1"]
[White " Boris Spassky"]
[Black "Fischer-Schneider"]
[Result "1-0"]

1.e4 d5 2.exd5 Qxd5 3.Nc3 Qd8 4.d4 Bf5 5.Nf3 Nc6 6.d5 Nb4 7.Nd4 e6 8.Bb5+ Ke7 
9.a3 Nxd5 10.Nxf5+ Kf6 11.Ne4+ Kxf5 12.Qf3+ Ke5 13.b4 Ngf6 14.Bb2+ Nc3 15.Qxc3+ 
Qd4 16.Qxd4+ Kf4 17.Qe5+ Kg4 18.Qg5# 1-0


External Links


  1. Guild Emblems, Zunftzeichen - (German)
  2. Erstes Computer-Schachturnier der Gesellschaft für Informatik October 17, 1975, Computerwoche 42/1975 (German)
  3. Dame verschmäht, Der Spiegel 24/1973, June 1973, pdf hosted by Hein Veldhuis (German)
  4. Jaap van den Herik (1983). Computerschaak, Schaakwereld en Kunstmatige Intelligentie. Ph.D. thesis, Delft University of Technology. Academic Service, The Hague. ISBN 90 62 33 093 2 (Dutch) 2.2.15. Het Fischer-Schneider-programma
  5. Dame verschmäht, Der Spiegel 24/1973, June 1973, pdf hosted by Hein Veldhuis (German)
  6. Konrad Zuse (1975). Vom Traum zür Wirklichkeit. Mitteilungen der Universität Dortmund, Sondernummer 12, pp. 4.

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