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Created page with " '''Home * Engines * Kches6''' '''Kches6''', (KChes, K-Ches)<br/> an early chess program and ACM 1974 participant, written by primary author Ken Presl..."
'''[[Main Page|Home]] * [[Engines]] * Kches6'''
'''Kches6''', (KChes, K-Ches)<br/>
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 2000C]] <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.
=Selected Games=
==Frankfort==
In May 1974, beforehand the ''First Annual Computerized Chess Tournament, State of Kentucky'' in [https://en.wikipedia.org/wiki/Frankfort,_Kentucky Frankfort, Kentucky], where forerunner '''KChes5''' lost from a chess program of the [https://en.wikipedia.org/wiki/University_of_Kentucky University of Kentucky], KChes5 played an exhibition match versus novelist [https://en.wikipedia.org/wiki/Walter_Tevis Walter Tevis], author of the novels ''[https://en.wikipedia.org/wiki/The_Hustler_(novel) The Hustler]'' and ''[https://en.wikipedia.org/wiki/The_Man_Who_Fell_to_Earth_(novel) The Man Who Fell to Earth]'', who had also written a number of articles on the game of chess, and later the novel ''[https://en.wikipedia.org/wiki/The_Queen%27s_Gambit_(novel) The Queen's Gambit]''. The exhibition match between KChes5 and Walter Tevis, was published in the [https://en.wikipedia.org/wiki/The_Courier-Journal The Courier-Journal] <ref>[https://en.wikipedia.org/wiki/Walter_Tevis Walter Tevis] ('''1974'''). ''[https://www.newspapers.com/newspage/108077667/ Input your move] - [https://www.newspapers.com/newspage/108077688/ continued]''. [https://en.wikipedia.org/wiki/The_Courier-Journal The Courier-Journal] from [https://en.wikipedia.org/wiki/Louisville,_Kentucky Louisville, Kentucky], May 19, 1974, pp. 209, 212</ref>:
<pre>
[Event "Exhibition Match"]
[Site "Frankfort, KY"]
[Date "1974.05.??"]
[Round "1"]
[White "KChes5"]
[Black "Walter Tevis"]
[Result "0-1"]
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Ncb5 a6 9.Nc3 d6
10.b3 Qa5 11.Qd3 Nxd4 12.Bxd4 Rd8 13.b4 Qxb4 14.a3 Qa5 15.Be2 e5 16.Bg1 d5 17.exd5 Nxd5
18.Kd2 Nxc3 19.Qxd8+ Qxd8+ 20.Kxc3 e4+ 21.Bd4 Qxd4+ 22.Kb3 Be6+ 23.c4 Qb2+ 24.Ka4 Bd7+
25.Ka5 b6# 0-1
</pre>
==<span id="tech2"></span>San Diego==
The [[ACM 1974]] game between KChes6 and [[Tech|Tech 2]] in [https://en.wikipedia.org/wiki/San_Diego San Diego] was mentioned in [[David Levy|David Levy's]] ''Chess and Computers'' concerning [[Time Management|time management]] <ref>[[David Levy]] ('''1976'''). ''[http://link.springer.com/book/10.1007/978-3-642-85538-2 Chess and Computers]''. Batsford</ref>. In foresight to the [[ACM 1974#time|tragic round 3 game]] vs. later tournament winner [[Ribbit]], where Tech 2 had 45 minutes at its disposal to mate in two but lost on time - here Tech 2 already used 86 minutes for 6... exd4, leaving it only 23 minutes for the remaining 34 moves - this time aware of the short time and playing fast enough to win from KChes6.
<pre>
[Event "ACM 1974"]
[Site "San Diego, CA"]
[Date "1974.11.11"]
[Round "2"]
[White "KChes6"]
[Black "Tech 2"]
[Result "0-1"]
1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Nxd5 6.d4 exd4 7.Qf3 Be6 8.Nxe6 fxe6
9.Qe4 Bb4+ 10.c3 dxc3 11.bxc3 Nxc3 12.Qg4 Nxb1+ 13.Ke2 Nd4+ 14.Ke3 Nc2+ 15.Ke2 Nc3+
16.Kf3 Nxa1 17.Bg5 O-O+ 18.Kg3 Ne4+ 19.Qxe4 Qxg5+ 20.Kh3 Qh5+ 21.Kg3 Bd6+ 22.f4 Qg5+
23.Kh3 Qh6+ 24.Kg4 Rxf4+ 0-1
</pre>
=See also=
* [[KChess]]
=Publications=
* 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
* [https://en.wikipedia.org/wiki/Walter_Tevis Walter Tevis] ('''1974'''). ''[https://www.newspapers.com/newspage/108077667/ Input your move] - [https://www.newspapers.com/newspage/108077688/ continued]''. [https://en.wikipedia.org/wiki/The_Courier-Journal The Courier-Journal] from [https://en.wikipedia.org/wiki/Louisville,_Kentucky Louisville, Kentucky], May 19, 1974, pp. 209, 212
* 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
=References=
<references />
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