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Home * Engines * IGM

IGM, (Ik Ga Mat, I'm Going to be Mated)
a chess program by Peter van Diepen, which competed the Dutch Computer Chess Championships in 1981 and 1983, and the unofficial Dutch championship matches in 1979 and 1980, where IGM lost from Bs6676, and drew Barend Swets' program in 1980 to share the 'title' [1]. IGM was written in Lisp, time critical parts of the Max Board 6802 version [2], which played the DOCCC 1981, in Assembly [3].


In 1978, IGM won the first games played between Dutch chess programs via telephone. IGM ran on a UNIVAC 418 III of Hoogovens. Schak123 ran on a self built system around the Signetics 2650 by the brothers Hans and Henk van der Liet in Amsterdam. Alder, the program by Peter Kouwenhoven, ran on a PDP-11/45 of the Leiden University [4]:

IGM - Schak123 1 - 0
Alder - IGM 0 - 1
IGM - Alder 1 - 0
[Event "First Dutch CC Game"]
[Site "Telephone NED"]
[Date "1978.06.23"]
[Round "01"]
[White "IGM"]
[Black "Schak-123"]
[Result "1-0"]

1.Nf3 { Van Diepen } e6 { Van der Liet } 2.Ng1 e5 3.d4 f6 4.dxe5 fxe5 5.e4 Nc6
6.Be3 Rb8 7.Bb5 Qe7 8.Bxc6 a6 9.Qh5+ Kd8 10.Bd5 Nf6 11.Qf5 d6 12.Qg5 Bd7
13.Ne2 Rc8 14.Bxb7 a5 15.Bxc8 Kxc8 16.Nd2 Rg8 17.O-O-O c6 18.Rde1 Be6
19.c4 Qf7 20.b3 Be7 21.Qg3 Rf8 22.c5 dxc5 23.Qxe5 Rg8 24.Bxc5 Rf8 25.Bxe7
Qxe7 26.Qxa5 Rg8 27.e5 Nh5 28.Rd1 Rf8 29.f3 Rg8 30.Rde1 Rf8 31.Rd1 Rg8
32.Kb2 Rf8 33.Rhe1 Rg8 34.Rc1 Rf8 35.Rxc6+ Kb8 36.Qb6+ 1-0 

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