Junior

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 * Home * Engines * Junior**

a chess engine by primary programmer Amir Ban and Shay Bushinsky. Junior is six times winner of the Shannon Trophy from WCCC 2002, WCCC 2004, WCCC 2006, WCCC 2009 (shared), WCCC 2011 and WCCC 2013, and two times winner of the World Microcomputer Chess Championship, the WMCCC 1997 and WMCCC 2001 respectively, and thus **most successful program** ever. Book authors are Alon Greenfeld and Boris Alterman. In 2003, the multiprocessor version **Deep Junior** played a 6-game match against [|Garry Kasparov] that resulted in a 3-3 tie. Junior is known for its entertaining, dynamic and sometimes speculative playing style. Until version 10.0 market as ChessBase engine in conjunction with the Fritz GUI, Deep Junior 13 as pure UCI compatible engine is purchased as download product from the Hiarcs site , and requires a Windows PC and an external GUI supporting the UCI protocol.
 * Junior**, (Deep Junior)

=Photos & Games=

WCCC 2006 Round 4
WCCC 2006, round 4, Junior - Shredder code [Event "WCCC 2006"] [Site "Turin, Italy"] [Date "2006.05.27"] [Round "4"] [White "Junior"] [Black "Shredder"] [Result "1/2-1/2"]
 * [[image:JuniorShredder2006.JPG width="580"]] ||
 * Stefan Meyer-Kahlen, Amir Ban, Theo van der Storm, ..., and Johannes Zwanzger watching ||

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e5 7.Nb3 Be6 8.f3 Nbd7 9.Qd2 Be7 10.g4 O-O 11.O-O-O b5 12.g5 Nh5 13.Nd5 Bxd5 14.exd5 b4 15.Kb1 a5 16.Bb5 a4 17.Nc1 a3 18.Nd3 Rb8 19.Bc6 axb2 20.Rhg1 Qc7 21.Rg4 f5 22.Rxb4 f4 23.Bf2 Bxg5 24.c3 Kh8 25.Qc2 Nhf6 26.Rg1 Bh6 27.Qa4 Nb6 28.Qa5 Nbxd5 29.Qxc7 Nxc7 30.Rxb8 Rxb8 31.Nb4 Ne6 32.Rd1 e4 33.a4 exf3 34.a5 Ng4 35.Rd2 Nxf2 36.Rxf2 Nc7 37.a6 Nxa6 38.Nxa6 Rb3 39.Rxf3 g5 40.Bd5 Rb5 41.Bc4 Rb7 42.Nb4 g4 43.Rd3 Bg7 44.Rxd6 Bxc3 45.Nd5 Bd2 46.Nf6 Bc3 47.Nxg4 Kg7 48.Rd5 Ra7 49.Ba2 h6 50.h4 Ra4 51.Nh2 Re4 52.Rd1 Re3 53.Rg1+ Rg3 54.Rf1 Re3 55.Nf3 Kg6 56.Bb3 Kf5 57.h5 Re7 58.Rd1 Kg4 59.Bd5 1/2-1/2 code

WCCC 2006 Shannon Trophy

 * [[image:AmirWithShannonTrophy.jpg width="580" height="443"]] ||
 * Jaap van den Herik awards Amir Ban with the Shannon Trophy. First prize for Junior, WCCC 2006 ||

=Description= given in 1995 from the ICGA page :

=Program Internals= Amir started chess programming in 1985 - Junior's predecessor was written in Turbo Pascal, later ported to C and C++. In 1993, Shay joins Amir's programming efforts, specializing in evaluation and optimisation.

C++
Amir Ban in rgcc, June 1997 :

|| code format="cpp" alphabeta(...) {  ...   Position newPosition; ... } code

Search Depth
Amir Ban in rgcc, March 1998 :

||

Amir Ban in CCC, April 1998 ;

> Genius depth 6 = Rebel depth 8 = Fritz5 depth 10 = Junior depth 12 ||

Razoring
Amir Ban in a CCC discussion with Robert Hyatt on Razoring versus Pruning, January 1999 :

=Release Dates=
 * Junior 3.3
 * Junior 3.5
 * Junior 4.0
 * Junior 5.0 : 1998
 * Junior 6.0 : 2000
 * Junior 7 : 2002
 * Junior 8 : 2004
 * Junior 9 : 2005
 * Junior 10 : 2006-8
 * Junior 10.1 : 2007-6
 * Junior 11 : 2009-11
 * Junior 11.1 : 2010-3
 * Junior 11.2 : 2010-5
 * Junior 2010 : 2010
 * Junior 12 : 2010-11
 * Junior 12.5 : 2011-04
 * Junior 13 : 2012-02
 * Junior 13.3 : 2012-11
 * Deep Junior Yokohama: 2013-10-24

=Matches=
 * Kasparov versus Deep Junior 2003
 * Deep Fritz versus Deep Junior 2007

=Publications=
 * Amir Ban (**1996**). //Junior among the Grandmasters//. ICCA Journal, Vol. 19, No. 4
 * Frank Schneider (**2001**). //Deep Junior wins the 18th World Microcomputer Chess Championship//. ICGA Journal, Vol. 24, No. 3 » WMCCC 2001
 * David Levy (**2003**). //[|The State of the Art in Man vs. “Machine” Chess]//. ICGA Journal, Vol. 26, No. 1 » Kasparov versus Deep Junior 2003
 * Karsten Müller (**2003**). //[|Man Equals Machine in Chess]//. ICGA Journal, Vol. 26, No. 1 » Kasparov versus Deep Junior 2003
 * Amir Ban (**2004**). //Deep Junior Confirms its Strength//. ICGA Journal, Vol. 27, No. 3 » WCCC 2004
 * Shay Bushinsky (**2007**). //Showdown in Elista//. ICGA Journal, Vol. 30, No, 2 » Deep Fritz versus Deep Junior 2007
 * Shay Bushinsky (**2009**). //[|Deus Ex Machina— A Higher Creative Species in the Game of Chess]//. AI Magazine, Vol. 30, No. 3
 * Amir Ban (**2012**). //[|Automatic Learning of Evaluation, with Applications to Computer Chess]//. Discussion Paper 613, [|The Hebrew University of Jerusalem] - Center for the Study of Rationality, [|Givat Ram] » Learning

=Forum Posts=

1995 ...

 * [|Question to Amir Ban] by Bas Hamstra, CCC, November 05, 1997
 * [|Junior: "Fast" Searcher or "Deep" Searcher?] by Fernando Villegas, CCC, April 19, 1998
 * [|Re: What is "pre-processing"] by Amir Ban, May 08, 1998 » Pre-processing
 * [|Junior 4.6 and the null move technique] by Sylvain Renard, CCC, March 14, 1998
 * [|Junior 5 !] by Dirk Frickenschmidt, rgcc, August 25, 1998
 * [|Re: Razoring?] by Amir Ban, CCC, January 27, 1999 » Razoring

2000 ...

 * [|Junior chess program. Just version of Fritz 5?] by Leonid, CCC, July 29, 2000 » Fritz
 * [|Answers] by Amir Ban, CCC, February 15, 2003 » Kasparov versus Deep Junior 2003
 * [|Re: Shredder 8 secret: search depth?] by Vasik Rajlich, CCC, March 23, 2004 » Depth, Shredder, Fritz

2010 ...

 * [|Patt-Bug, Junior 11.1a show mate and Ktulu 9.03 made patt!] by Frank Quisinsky, CCC, March 23, 2010 » Stalemate
 * [|Deep Junior 12 now available] by Graham Banks, CCC, October 27, 2010
 * [|Junior is World Computer Chess Champion!] by Gerd Isenberg, CCC, August 17, 2013
 * [|WCCC 2013: Junior wins] by Mike Scheidl, CCC, August 17, 2013
 * [|Israel’s Deep Junior still the king at WCCC] by Sean Evans, CCC, August 19, 2013
 * [|Deep Junior Yokohama] by Graham Banks, CCC, October 24, 2013
 * [|Deep Junior Yokohama] by Graham Banks, CCC, November 29, 2013

=External Links=
 * [|Junior's ICGA Tournaments]
 * [|Junior (chess) from Wikipedia]
 * [|Deep Junior timeline] by [|Jorn Barger], February 2003
 * [|Programs and essentials] by Steve Lopez, ChessBase News, March 13, 2005 » Shredder 9
 * [|Amir Ban on Deep Junior] from [|Combinatorics and more - Gil Kalai’s blog], June 25, 2008

Purchase

 * [|Deep Junior 13 PC Chess Software] from [|HIARCS Chess Software for PC, Mac, Pocket PC, iPhone, iPod and Palm Chess]
 * [|Download Junior] from [|HIARCS Chess Software for PC, Mac, Pocket PC, iPhone, iPod and Palm Chess]
 * [|Deep Junior 13.8 mulitprocessor version], ChessBase Shop, February 2014

Reports

 * [|Kasparov & Deep Junior fight to 3-3 draw!]
 * [|Kasparov-Junior] from [|HIARCS Chess Software for PC, Mac, Pocket PC, iPhone, iPod and Palm Chess]
 * [|Israel’s Deep Junior still the king at World Computer Chess Championship], [|Jerusalem Post], August 18, 2013

Misc
> feat. [|Giovanni Tommaso], Franco D'Andrea, Gato Barbieri, [|Franco Ambrosetti] > media type="youtube" key="fJq0Cf6cRuc"
 * [|Junior from Wikipedia]
 * [|Franco Tonani] - Junior's Idea, from [|Night In Fonorama], recorded [|Milan], May 31,1964, [|YouTube] Video

=References= =What links here?= include page="Junior" component="backlinks" limit="120"
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