Daly CP

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Chris Daly - Daly CP, IDIIOM Chess GUI prototype [1] [2]

Daly CP,
an early chess program developed by NASA researcher Chris Daly [3] with help from Kenneth L. King, co-founder of Information Displays, Inc. (IDI) [4] [5] [6], the designer and manufacturer of the stand-alone computer-aided design (CAD) platform IDIIOM (IDI Input-Output Machine) [7] .

Daly CP participated the First United States Computer Chess Championship 1970 in New York and became runner-up behind Chess 3.0. It won its games versus Schach and Wita, and lost from Coko III. Unlike the other programs with communication links to their mainframe computers, the IDIIOM workstation was on site at New York Hilton [8].


Daly CP was written in assembly language to run on the IDIIOM system based on a Varian 620/i minicomputer [9] [10]. The program required 4KByte of memory and searched all moves to depth of 4 ply. Essentially, it was an implementation of the Shannon Type A Strategy [11]. Along with J. Biit which was operated through a chess GUI written at Columbia University for the IBM 2250 Display Unit [12], Daly CP was one of the first chess programs with a Graphical User Interface.

Selected Games

ACM 1970, round 3, Wita - Daly CP [13]

[Event "ACM 1970"]
[Site "New York, USA"]
[Date "1970.09.02"]
[Round "3"]
[White "Wita"]
[Black "Daly CP"]
[Result "0-1"]

1.e3 e5 2.d4 Qg5 3.h4 Qf6 4.Qf3 Bb4+ 5.Nc3 Qxf3 6.Nxf3 Bxc3+ 7.Bd2 Bxb2
8.Rb1 e4 9.Ne5 Ba3 10.Bb4 Bxb4+ 11.c3 Bxc3+ 12.Kd1 d6 13.Bb5+ Ke7
14.Kc2 dxe5 15.Kxc3 Be6 16.d5 Bxd5 17.Bc4 Bxc4 18.Kxc4 b6 19.Rbd1 Nd7
20.f3 exf3 21.Rd2 Ngf6 0-1

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