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Chute (CHUTE - CHess, University of Toronto, Engineering),
the chess program from the University of Toronto by Michael Valenti and Zvonko Vranesic. Chute was subject of Valenti's Masters Thesis supervised by Vranesic [1], later also published in many parts in the Personal Computing magazine. Chute participated at four consecutive ACM North American Computer Chess Championships, ACM 1974, ACM 1975, ACM 1976 and ACM 1977 and the WCCC 1977 in Toronto.

Experiences with Chute

Abstract of Experiences with Chute during the WCCC 1977 in the Proceedings of the 1977 annual ACM conference [2] :

This paper describes some of the experiences with CHUTE (CHess, University of Toronto, Engineering), an easily modifiable chess playing program. The basic characteristics of the program are discussed. The game tree look-ahead procedure used in the program does not employ a static position analysis, but selects the best path strictly on the basis of dynamic move analysis.
A brief discussion of heuristics is given, along with some of the problems encountered in their implementation. The program has an opening book  designed to take other chess playing programs out of their books. 

Selected Games

WCCC 1977, round 4, Tell - Chute 1.2 [3]

[Event "WCCC 1977"]
[Site "Toronto, Canada"]
[Date "1977.08.09"]
[Round "4"]
[White "Tell"]
[Black "Chute 1.2"]
[Result "0-1"]

1.e4 c5 2.Bc4 d6 3.Qh5 e6 4.Bb5+ Nd7 5.Nc3 Nf6 6.Qh4 a6 7.Be2 d5 
8.exd5 exd5 9.Nf3 b5 10.Nxd5 Nxd5 11.Qe4+ Be7 12.Qxd5 Nb6 13.Qc6+ 
Bd7 14.Qe4 O-O 15.O-O f5 16.Qe5 Rf6 17.Bd3 Bd6 18.Qc3 Nd5 19.Qb3 c4 
20.Bxc4 bxc4 21.Qxc4 Be6 22.Ng5 Rh6 23.h4 Ne3 24.Nxe6 Bh2+ 25.Kh1 
Nxc4 26.Nxd8 Rxh4 27.Ne6 Bf4+ 28.Kg1 Bh2+ 29.Kh1 Be5+ 30.Kg1 Re8 
31.Nc5 Bh2+ 32.Kh1 Bd6+ 33.Kg1 Bxc5 34.d3 Ne5 35.Bg5 Rg4 36.Bc1 Nf3+ 
37.Kh1 Rh4# 0-1 


1974 ...



External Links


  1. Michael Valenti (1974). CHUTE I, An Easily Modifiable Chess Playing Program. MSc. Thesis, Dept. of Electrical Engineering, University of Toronto
  2. Michael Valenti, Zvonko Vranesic (1977). Experiences with CHUTE. Proceedings of the 1977 annual ACM conference
  3. Toronto 1977 - Chess - Round 4 - Game 5 (ICGA Tournaments)

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