Changes

an early chess program and [[ACM 1974]] participant, written by primary author [[Ken Presley]] supported by [[Jim Morris]] - at that time both 21-year-old computer science students at [https://en.wikipedia.org/wiki/University_of_Louisville University of Louisville], [https://en.wikipedia.org/wiki/Louisville,_Kentucky Louisville, Kentucky] <ref>Wanda Nichols ('''1974'''). ''[https://www.newspapers.com/newspage/108064388/ Programmed to Win?]''. [https://en.wikipedia.org/wiki/The_Courier-Journal The Courier-Journal] from [https://en.wikipedia.org/wiki/Louisville,_Kentucky Louisville, Kentucky], November 3, 1974, pp. 29</ref>. KChes ran on a [[HP 2100#2000C|HP 2000C2000]] under [https://en.wikipedia.org/wiki/HP_Time-Shared_BASIC HP Time-Shared BASIC] <ref>[http://www.decodesystems.com/hp2000/ Hewlett-Packard HP 2000 Time Shared Basic]</ref> and was a [[Claude Shannon|Shannon]] [[Type B Strategy|type B strategy]] kind of program, relying on [[Pruning|forward pruning]] of hopefully none plausible moves, and it also used [[Alpha-Beta|alpha-beta]] to prune backwards. Its author's dream, to program "[[Artificial Intelligence|artificial Intelligence]]" into the machine, so that it could [[Learning|learn]] from its errors, correct its miscalculations, throw in creative variations to sidetrack its opponent, and eventually to win the [[ACM North American Computer Chess Championship|national computer chess championship]] <ref>John Filiatreau ('''1974'''). ''[https://www.newspapers.com/newspage/107846183/ At Engineer Week at UL you can try to make a soft landing on the moon]''. [https://en.wikipedia.org/wiki/The_Courier-Journal The Courier-Journal] from [https://en.wikipedia.org/wiki/Louisville,_Kentucky Louisville, Kentucky], February 18, 1974, pp. 20</ref> was not fulfilled - on the contrary, at the [[ACM 1974]] Kches6 lost two games with White and then withdrew from the tournament.