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an early chess program by Johann Joss, who already started chess programming in 1967 on a CDC 1604 A [2]. It played the first two World Computer Chess Championships, the WCCC 1974 in Stockholm and the WCCC 1977 in Toronto, and won the first German computer chess tournament, the First GI Computer Chess Tournament, 1975 in Dortmund [3] [4]. Tell was a small and fast searcher for that time, running on HP 2100, HP 2115 minicomputers, three to eight plies deep with around 100.000 nodes in three minutes [5].

WCCC '74 game

This sample game from the WCCC 1974, Freedom versus Tell ended in a draw by threefold repetition, where Tell in an otherwise won position was likely not aware of:

[Event "WCCC 1974"]
[Site "Stockholm, Sweden"]
[Date "1974.08.08"]
[Round "4"]
[White "Freedom"]
[Black "Tell"]
[Result "1/2-1/2"]

1.d4 d5 2.c4 dxc4 3.Nc3 Nc6 4.d5 Ne5 5.f4 Nd7 6.e4 Nb6 7.Be3 Qd6 8.e5 
Qb4 9.e6 fxe6 10.dxe6 Bxe6 11.g3 Qxb2 12.Rc1 Rd8 13.Qe2 Qa3 14.Nb1 Qa5+ 
15.Nc3 Bd5 16.Nf3 Na4 17.Bd4 Bxf3 18.Qxf3 Rxd4 19.Qxb7 Nxc3 20.Qc6+ Rd7 
21.Qa8+ Rd8 22.Qc6+ Rd7 23.Qa8+ Rd8 24.Qc6+ Rd7 1/2-1/2 

External Links

Chess Program


William Tell (play)
Wilhelm Tell by Friedrich Schiller (ebook)
Jean-Paul Bourelly, Darryl Jones, Will Calhoun


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