Deep Fritz versus Deep Junior 2007

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Chess in Elista [1]

Deep Fritz versus Deep Junior 2007,
billed as The President's Cup, and dubbed as The Ultimate Computer Chess Challenge 2007, was organized by the FIDE as side event of the Candidates Matches from May 26 to June 14, 2007 in the Goverment House, Elista, Republic of Kalmykia, Russia. The six, or if tied, seven game match with a $100,000 prize fund took place from June 6 to June 11 with a possible playoff day scheduled on June 12, and was sponsored by FIDE and the at that time president of the Republic of Kalmykia, FIDE president Kirsan Ilyumzhinov [2].

The Match

The contenders were the reigning World Computer Chess Champion Deep Junior represented by their authors Amir Ban and Shay Bushinsky, and the winner versus World Chess Champion Vladimir Kramnik in 2006, Deep Fritz by Frans Morsch and Mathias Feist, represented by its opening book author Alex Kure. Both programs played on remote computers, connected via the internet, Deep Junior had a 16 x 2.6GHz core Intel Tigerton (Caneland) processor, Deep Fritz played on an 8 core AMD box [3]. Despite the overlapping schedule with their own WCCC 2007 starting on June 11 as confirmed on April 5 [4], implying Deep Junior would not defend its title, the match was sanctioned by the ICGA - its president David Levy served as arbiter. The match ended with 4-2 in favour of Deep Junior, winnng two games and four draws.



Alex Kure resigns game 4 for Deep Fritz, Amir Ban accepts for Deep Junior, David Levy in the bakground [5]


Game 1, 2, 5 and 6 were draws. Game 3 was a complex struggle following a deeply prepared opening line in the poisoned pawn variation won by Deep Junior in great style. Deep Fritz further lost game 4 after committing 33.Bf4 which turned out to be an serious error [6].

Game 3


[Event "Deep Fritz versus Deep Junior Match"]
[Site "Elista"]
[Date "2007/6/8"]
[Round "R1 G3"]
[White "Deep Junior"]
[Black "Deep Fritz"]
[Result "1-0"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Qb6 8.Qd2 Qxb2 9.Rb1 Qa3 
10.e5 h6 11.Bh4 dxe5 12.fxe5 Nfd7 13.Ne4 Qxa2 14.Rd1 Qd5 15.Qe3 Qxe5 16.Be2 Bc5 17.Bg3 
Bxd4 18.Rxd4 Qa5+ 19.Rd2 O-O 20.Bd6 Re8 21.O-O f5 22.Qg3 Nc6 23.Qg6 Qd8 24.Bc4 Kh8 
25.Ng5 Qxg5 26.Qxe8+ Kh7 27.Bf4 Qg6 28.Qxg6+ Kxg6 29.Bxe6 Nf6 30.Bc4 Kh7 31.Bc7 a5 
32.Ra1 a4 33.Bb5 Ne4 34.Rd3 Nb4 35.Rd8 a3 36.Bd7 Nxc2 37.Rf1 Bxd7 38.Rxa8 Be6 39.Be5 
Ng5 40.Rf2 Bb3 41.Rxf5 Kg6 42.Rf1 a2 43.Ra7 Ne3 44.Rxb7 Bd5 45.Rxg7+ Kh5 46.Rc1 Nxg2 
47.Kf2 Nh3+ 48.Ke2 Nh4 49.Ba1 Be4 50.Rc4 Bb1 51.Rg3 Ng5 52.Rb3 Nf5 53.Kd1 Ne4 54.Kc1 
Kg5 55.Rf3 Kg4 56.Ra3 Kf4 57.Rc8 Nf2 58.Rcc3 Ne4 59.Rf3+ Kg4 60.h3+ Kg5 61.Ra5 Ned6 
62.Ra4 Ne4 63.Rb4 Nfd6 64.Kb2 Nf5 65.Rb5 Ned6 66.Rc5 Nb7 67.Rc4 Nbd6 68.Rg4+ Kh5 
69.Rgf4 Kg6 70.Kc1 Kg5 71.Rg4+ Kh5 72.Ra4 Kg6 73.Rff4 Nc8 74.Ra5 Ncd6 75.h4 Kf7 
76.Re5 Kg6 77.Kb2 Kf6 78.Kb3 Kf7 79.Ra4 Kg6 80.Ra6 Kf7 81.h5 Kf6 82.Kb4 Kf7 
83.Ra7+ Kf6 84.Rd7 Kg5 85.Rxd6 1-0
Game and short analyze on

Game 4


[Event "Deep Fritz versus Deep Junior Match"]
[Site "Elista"]
[Date "2007/6/9"]
[Round "R1 G4"]
[White "Deep Fritz"]
[Black "Deep Junior"]
[Result "0-1"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Nf3 c5 8.Rb1 O-O 9.Be2 Nc6 
10.d5 Ne5 11.Nxe5 Bxe5 12.Qd2 e6 13.f4 Bc7 14.O-O exd5 15.exd5 Ba5 16.f5 Bxf5 17.Rxb7 Qd6
 18.Bc4 Qe5 19.Rf3 Rab8 20.Rxa7 Bb6 21.Ra4 Bc7 22.g3 Rb1 23.Re3 Qf6 24.Ra6 Bd6 25.Re1 Rfb8 
26.Bf1 h5 27.a4 c4 28.Rc6 Ra1 29.Bxc4 Bd7 30.Rf1 Qe7 31.Rxd6 Qxd6 32.Qf2 Qb6 33.Bf4 Qxf2+
34.Kxf2 Rb2+ 35.Ke3 Rxa4 36.Bd3 Rxh2 37.c4 Ra3 38.Kd4 h4 39.g4 Rh3 40.Be2 Rhb3 41.Ke5 Rb2 
42.Re1 Raa2 43.Bd1 Ra6 44.Bc1 Rb8 45.Rg1 h3 46.Rh1 f6+ 47.Kd4 Ra1 48.Bc2 g5 49.c5 Bxg4 
50.c6 Kf7 51.Rf1 Rh8 52.d6 h2 53.d7 Ke7 54.Rh1 0-1
Game and short analyze on


Just before the Ultimate Computer Chess Match began, Rybka author Vasik Rajlich criticized the lack of an open, formal qualification procedure of the FIDE event, and preference of ChessBase engines, and challenged the winner with a $100,000 prize fund, even offering odds of a game in a 24 game match [9] [10]. There were indeed plans and concrete negotiations for a Rybka versus Deep Junior match during the World Chess Championship 2007 in Mexico City with David Levy, Amir Ban and Shay Bushinsky, and Rajlich representative Sergey Abramov involved, who stated that his company, Convekta Ltd., which is the distributor of Rybka, would guarantee the $100,000, so that if no other sponsor could be found, the money was still assured. Finally the negotiations abandoned on the topic of playing remote versus playing on weaker local hardware on site [11]. Instead, Zappa took the chance, and the Zappa versus Rybka Match took place in September 2007 for a $10,000 prize money [12].

See also


Chapter 12 2007: Deep Junior Deep Sixes Deep Fritz in Elista, 4–2

Forum Posts

External Links

The Ultimate Computer Chess Challenge - Fact Sheet (pdf)


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