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Created page with "'''Home * Engines * Charly''' [[FILE:Swiss yodelers.jpg|border|right|thumb|320px| [https://en.wikipedia.org/wiki/New_Glarus,_Wisconsin New Glarus] [https://..."
'''[[Main Page|Home]] * [[Engines]] * Charly'''
[[FILE:Swiss yodelers.jpg|border|right|thumb|320px| [https://en.wikipedia.org/wiki/New_Glarus,_Wisconsin New Glarus] [https://en.wikipedia.org/wiki/Yodeling yodelers] in traditional Swiss garb <ref>[https://en.wikipedia.org/wiki/File:Swiss_yodelers.jpg Outdoor group portrait of a group of Swiss yodelers in costume], 1922, Moen Photo Service, [https://en.wikipedia.org/wiki/La_Crosse,_Wisconsin La Crosse, WI], [https://en.wikipedia.org/wiki/Yodeling Yodeling from Wikipedia], [https://en.wikipedia.org/wiki/Wikimedia_Commons Wikimedia Commons]</ref> ]]
'''Charly''', ('''C'''hess '''h'''euristics and '''a'''lgorithms for '''r'''elaxing '''l'''azy '''y'''odelers)<br/>
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|search]] went 4 [[Ply|plies]] [[Depth|deep]], with the final position including an extensive [[Static Exchange Evaluation|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 [[Tactics|tactically]] but there was not much in the program incorporating [[Strategy|strategy]]. Strategy, besides [[Material|material]] advantage, included [[Mobility|mobility]] of the pieces, [[Pawn Structure|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|castling]], [[En passant|en passant]], and [[Stalemate|stalemate]] through [[Repetitions#RepetitionofMoves|move repetition]].
The only thing not included was pawn [[Promotions|promotion]] to something other than a queen.
The [[Opening Book|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 [https://en.wikipedia.org/wiki/Larry_Evans Larry Evans], [https://en.wikipedia.org/wiki/Modern_Chess_Openings Modern Chess Openings]
<ref>Description taken from [http://ljkrakauer.com/LJK/60s/tripardltr.htm July 1, 2010 letter from Dr. Gerald Tripard], hosted by [[Lawrence J. Krakauer]]</ref>.
<span id="ETHMIT"></span>
=ETH-MIT Match=
In 1968, [[Gerald Tripard]] asked [[Richard Greenblatt]] for a match versus [[Mac Hack|Mac Hack VI]]. Three games were played in October and November 1968 via [https://en.wikipedia.org/wiki/Amateur_radio ham radio]
<ref>[http://ljkrakauer.com/LJK/60s/hamchess.htm Computer chess via ham radio] by [[Lawrence J. Krakauer]]</ref>:
==Game 1==
<ref>[http://ljkrakauer.com/LJK/60s/game1list.htm The first inter-computer chess game via ham radio] by [[Lawrence J. Krakauer]]</ref> <ref>[http://ljkrakauer.com/LJK/60s/greenblattltr.htm October 30, 1968 letter from Richard Greenblatt to G. Tripard]</ref>
<pre>
[Event "ETH-MIT Match"]
[Site "Zurich/Cambridge"]
[Date "1968.10.27"]
[Round "1"]
[White "Charly"]
[Black "Mac Hack VI"]
[Result "0-1"]
1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4 4.Bd3 d5 5.Nxe5 Bd6 6.O-O O-O 7.c4 Bxe5 8.dxe5 Nc6
9.cxd5 Qxd5 10.Qf3 Bf5 11.Qxf5 Qxd3 12.Nc3 Nc5 13.Qxd3 Nxd3 14.f4 Rfd8 15.Rf3 Rd7
16.Ne4 Rad8 17.b3 R7d4 18.Nc3 Ne1 19.Rg3 Nc2 20.Rb1 Kf8 21.Nb5 R4d1+ 22.Kf2 R8d7
23.Ke2 R1d5 24.a4 N6d4+ 25.Nxd4 Nxd4+ 26.Kf2 Nf5 27.Ba3+ c5 28.Rc3 R5d2+ 29.Kg1 b6
30.g4 Nd4 31.Kh1 Nc2 32.Bc1 Re2 33.Bb2 Ne3 34.h3 Rd1+ 35.Rxd1 Nxd1 36.Ba1 Nxc3
37.Bxc3 Rc2 38.Be1 Rc1 39.g5 Rxe1+ 40.Kg2 Re4 41.b4 cxb4 0-1
</pre>
==Games 2 and 3==
<ref>[http://ljkrakauer.com/LJK/60s/games23list.htm Games 2 and 3]</ref>
<pre>
[Event "ETH-MIT Match"]
[Site "Zurich/Cambridge"]
[Date "1968.11.26"]
[Round "2"]
[White "Mac Hack VI"]
[Black "Charly"]
[Result "1-0"]
1.e4 e5 2.Nf3 Nc6 3.Bb5 d6 4.d4 exd4 5.Nxd4 Nge7 6.Nc3 a6 7.Ba4 b5 8.Bb3 Na5
9.Qf3 Nxb3 10.axb3 c5 11.Ndxb5 d5 12.Nxd5 Nxd5 13.exd5 Qe7+ 14.Qe3 Qxe3+ 15.Bxe3 Kd7
16.Nc3 Bd6 17.Na4 Rb8 18.Nxc5+ Bxc5 19.Bxc5 Re8+ 20.Be3 Kd6 21.O-O-O Rb5 22.Bf4+ 1-0
[Event "ETH-MIT Match"]
[Site "Zurich/Cambridge"]
[Date "1968.11.26"]
[Round "3"]
[White "Charly"]
[Black "Mac Hack VI"]
[Result "0-1"]
1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Bc5 5.Nxe5 Qe7 6.Nxc6 dxc6 7.Bc4 Bg4 8.Be2
Bxe2 9.Qxe2 Nxe4 10.d3 Nd6 11.Qxe7+ Kxe7 12.Re1+ Kd7 13.c3 Rae8 14.Rd1 Re2 15.d4 Bb6
16.g4 Rhe8 17.Kg2 f5 18.g5 Nc4 19.b3 Ne3+ 20.Bxe3 R8xe3 21.g6 hxg6 22.d5 R3e4
23.dxc6+ Kxc6 24.Rf1 Rc2 25.a4 Ree2 26.Rd1 Rexf2+ 0-1
</pre>
=See also=
* [[Charlie]]
=External Links=
==Chess Program==
* [http://ljkrakauer.com/LJK/60s/hamchess.htm Computer chess via ham radio] by [[Lawrence J. Krakauer]]
* [http://ljkrakauer.com/LJK/60s/tripardltr.htm July 1, 2010 letter from Dr. Gerald Tripard], hosted by [[Lawrence J. Krakauer]]
==Misc==
* [https://en.wikipedia.org/wiki/Charly_%28disambiguation%29 Charly (disambiguation) from Wikipedia]
* [https://en.wikipedia.org/wiki/Charly_(name) Charly (name) from Wikipedia]
=References=
<references />
'''[[Engines|Up one Level]]'''
[[Category:Mainframe]]
[[Category:Acronym]]
[[Category:Given Name]]
[[FILE:Swiss yodelers.jpg|border|right|thumb|320px| [https://en.wikipedia.org/wiki/New_Glarus,_Wisconsin New Glarus] [https://en.wikipedia.org/wiki/Yodeling yodelers] in traditional Swiss garb <ref>[https://en.wikipedia.org/wiki/File:Swiss_yodelers.jpg Outdoor group portrait of a group of Swiss yodelers in costume], 1922, Moen Photo Service, [https://en.wikipedia.org/wiki/La_Crosse,_Wisconsin La Crosse, WI], [https://en.wikipedia.org/wiki/Yodeling Yodeling from Wikipedia], [https://en.wikipedia.org/wiki/Wikimedia_Commons Wikimedia Commons]</ref> ]]
'''Charly''', ('''C'''hess '''h'''euristics and '''a'''lgorithms for '''r'''elaxing '''l'''azy '''y'''odelers)<br/>
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|search]] went 4 [[Ply|plies]] [[Depth|deep]], with the final position including an extensive [[Static Exchange Evaluation|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 [[Tactics|tactically]] but there was not much in the program incorporating [[Strategy|strategy]]. Strategy, besides [[Material|material]] advantage, included [[Mobility|mobility]] of the pieces, [[Pawn Structure|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|castling]], [[En passant|en passant]], and [[Stalemate|stalemate]] through [[Repetitions#RepetitionofMoves|move repetition]].
The only thing not included was pawn [[Promotions|promotion]] to something other than a queen.
The [[Opening Book|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 [https://en.wikipedia.org/wiki/Larry_Evans Larry Evans], [https://en.wikipedia.org/wiki/Modern_Chess_Openings Modern Chess Openings]
<ref>Description taken from [http://ljkrakauer.com/LJK/60s/tripardltr.htm July 1, 2010 letter from Dr. Gerald Tripard], hosted by [[Lawrence J. Krakauer]]</ref>.
<span id="ETHMIT"></span>
=ETH-MIT Match=
In 1968, [[Gerald Tripard]] asked [[Richard Greenblatt]] for a match versus [[Mac Hack|Mac Hack VI]]. Three games were played in October and November 1968 via [https://en.wikipedia.org/wiki/Amateur_radio ham radio]
<ref>[http://ljkrakauer.com/LJK/60s/hamchess.htm Computer chess via ham radio] by [[Lawrence J. Krakauer]]</ref>:
==Game 1==
<ref>[http://ljkrakauer.com/LJK/60s/game1list.htm The first inter-computer chess game via ham radio] by [[Lawrence J. Krakauer]]</ref> <ref>[http://ljkrakauer.com/LJK/60s/greenblattltr.htm October 30, 1968 letter from Richard Greenblatt to G. Tripard]</ref>
<pre>
[Event "ETH-MIT Match"]
[Site "Zurich/Cambridge"]
[Date "1968.10.27"]
[Round "1"]
[White "Charly"]
[Black "Mac Hack VI"]
[Result "0-1"]
1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4 4.Bd3 d5 5.Nxe5 Bd6 6.O-O O-O 7.c4 Bxe5 8.dxe5 Nc6
9.cxd5 Qxd5 10.Qf3 Bf5 11.Qxf5 Qxd3 12.Nc3 Nc5 13.Qxd3 Nxd3 14.f4 Rfd8 15.Rf3 Rd7
16.Ne4 Rad8 17.b3 R7d4 18.Nc3 Ne1 19.Rg3 Nc2 20.Rb1 Kf8 21.Nb5 R4d1+ 22.Kf2 R8d7
23.Ke2 R1d5 24.a4 N6d4+ 25.Nxd4 Nxd4+ 26.Kf2 Nf5 27.Ba3+ c5 28.Rc3 R5d2+ 29.Kg1 b6
30.g4 Nd4 31.Kh1 Nc2 32.Bc1 Re2 33.Bb2 Ne3 34.h3 Rd1+ 35.Rxd1 Nxd1 36.Ba1 Nxc3
37.Bxc3 Rc2 38.Be1 Rc1 39.g5 Rxe1+ 40.Kg2 Re4 41.b4 cxb4 0-1
</pre>
==Games 2 and 3==
<ref>[http://ljkrakauer.com/LJK/60s/games23list.htm Games 2 and 3]</ref>
<pre>
[Event "ETH-MIT Match"]
[Site "Zurich/Cambridge"]
[Date "1968.11.26"]
[Round "2"]
[White "Mac Hack VI"]
[Black "Charly"]
[Result "1-0"]
1.e4 e5 2.Nf3 Nc6 3.Bb5 d6 4.d4 exd4 5.Nxd4 Nge7 6.Nc3 a6 7.Ba4 b5 8.Bb3 Na5
9.Qf3 Nxb3 10.axb3 c5 11.Ndxb5 d5 12.Nxd5 Nxd5 13.exd5 Qe7+ 14.Qe3 Qxe3+ 15.Bxe3 Kd7
16.Nc3 Bd6 17.Na4 Rb8 18.Nxc5+ Bxc5 19.Bxc5 Re8+ 20.Be3 Kd6 21.O-O-O Rb5 22.Bf4+ 1-0
[Event "ETH-MIT Match"]
[Site "Zurich/Cambridge"]
[Date "1968.11.26"]
[Round "3"]
[White "Charly"]
[Black "Mac Hack VI"]
[Result "0-1"]
1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Bc5 5.Nxe5 Qe7 6.Nxc6 dxc6 7.Bc4 Bg4 8.Be2
Bxe2 9.Qxe2 Nxe4 10.d3 Nd6 11.Qxe7+ Kxe7 12.Re1+ Kd7 13.c3 Rae8 14.Rd1 Re2 15.d4 Bb6
16.g4 Rhe8 17.Kg2 f5 18.g5 Nc4 19.b3 Ne3+ 20.Bxe3 R8xe3 21.g6 hxg6 22.d5 R3e4
23.dxc6+ Kxc6 24.Rf1 Rc2 25.a4 Ree2 26.Rd1 Rexf2+ 0-1
</pre>
=See also=
* [[Charlie]]
=External Links=
==Chess Program==
* [http://ljkrakauer.com/LJK/60s/hamchess.htm Computer chess via ham radio] by [[Lawrence J. Krakauer]]
* [http://ljkrakauer.com/LJK/60s/tripardltr.htm July 1, 2010 letter from Dr. Gerald Tripard], hosted by [[Lawrence J. Krakauer]]
==Misc==
* [https://en.wikipedia.org/wiki/Charly_%28disambiguation%29 Charly (disambiguation) from Wikipedia]
* [https://en.wikipedia.org/wiki/Charly_(name) Charly (name) from Wikipedia]
=References=
<references />
'''[[Engines|Up one Level]]'''
[[Category:Mainframe]]
[[Category:Acronym]]
[[Category:Given Name]]
