CharlyETHMIT
[ New Glarus yodelers in traditional Swiss garb [1] Charly, (Chess heuristics and algorithms for relaxing lazy yodelers)
an early chess program developed in 1967/68 by Gerald Tripard, Gerhard Rudolf and Werner Joho at ETH Zurich, to run on a CDC 1604.
Description
The main tree search went 4 plies deep, with the final position including an extensive evaluation of all possible exchanges on the square occupied by the piece being moved there on the last ply. This made the program relatively strong tactically but there was not much in the program incorporating strategy. Strategy, besides material advantage, included mobility of the pieces, pawn structure and advancement to queening. It required a considerable amount of time making the program totally move-legal, such as incorporating all of the rules associated with castling, en passant, and stalemate through move repetition. The only thing not included was pawn promotion to something other than a queen. The opening book was programmed by Gerhard Rudolf, the machine language expert, the chess playing algorithm was programmed in Fortran. The library entries were collected from books, mainly, the 10th edition of Larry Evans, Modern Chess Openings [2].
ETH-MIT Match
In 1968, Gerald Tripard asked Richard Greenblatt for a match versus Mac Hack VI. Three games were played in October and November 1968 via ham radio [3]:
Game 1
Games 2 and 3
See also
External Links
Chess Program
- Computer chess via ham radio by Lawrence J. Krakauer
- July 1, 2010 letter from Dr. Gerald Tripard, hosted by Lawrence J. Krakauer
Misc
References
- ↑ Outdoor group portrait of a group of Swiss yodelers in costume, 1922, Moen Photo Service, La Crosse, WI, Yodeling from Wikipedia, Wikimedia Commons
- ↑ Description taken from July 1, 2010 letter from Dr. Gerald Tripard, hosted by Lawrence J. Krakauer
- ↑ Computer chess via ham radio by Lawrence J. Krakauer
- ↑ The first inter-computer chess game via ham radio by Lawrence J. Krakauer
- ↑ October 30, 1968 letter from Richard Greenblatt to G. Tripard
- ↑ Games 2 and 3