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June 14 marks the end of the FIDE Candidates Matches 2007 in Elista, Russia. This tournament is being played by 16 Grandmasters, with the top four finishers qualifying for the world championship next September in Mexico. Next week, we will inform you about the result of this very important event.

 Today, we will tell you about another interesting match played in Elista during the Candidates Matches. The players this time were not humans, but computer programs. Their names are Deep Fritz and Deep Junior. They were to play six games in all, but in the 5th round a winner was declared: Deep Junior.

Deep Junior was created by Amir Ban and Shay Bushinsky, both born in Israel. Grandmaster Boris Alterman, also from Israel, cooperated with them. Their program has an impressive track record, taking the World Computer Chess Championship in 1997, 2001, 2002, 2004 and 2006, and in 2003 drawing in a six‑game match with Garry Kasparov.

Deep Fritz also has a very good curriculum. Created by the Dutch programmer Frans Morsch along with Mathias Feist from Germany, Fritz in 2003 drew in an eight‑game match against Vladimir Kramnik, in 2003 drew in a four‑game match against Garry Kasparov, and in 2006 beat world champion Vladimir Kramnik by 4‑2 in a six‑game match played in Bonn, Germany.

In this match, Junior’s superiority was evident. Fritz did not win a single game and Junior won twice. Today we present you Junior’s 2nd win. It sacrificed two pawns in order to gain mobility for its rooks. Until the end, Fritz’s analysis said that it was winning while its position became more and more tenuous. We can say that Junior taught a tough lesson to Fritz’s programmers, who couldn’t help but watch their lithium prodigy commit a fatal blunder on the 33rd move.

 

Deep Fritz ‑ Deep Junior [D85‑Grünfeld opening]

Fritz vs Junior Match, Elista, Russia, June 9, 2007; 4th round

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Nf3 c5 8.Rb1 0–0 9.Be2 Nc6 10.d5 Ne5 11.Nxe5 Bxe5 12.Qd2 e6 13.f4 Bc7 14.0–0 exd5 15.exd5 Ba5 16.f5 In the second game:16. d6 b6 17. Bf3 Rb8 18. Bb2 b5 19. Ba3 Bf5 20. Rbd1 c4 21. Rfe1Bd3 22. Re5 b4 23. cxb4 Bb6+ 24. Kh1 Qxd6 25. Bb2 Rbe8 26. Rxe8 Rxe8 27. Qc3 f628. Qxf6 Qxf6 29. Bxf6 Kf7 30. Be5 Rd8 31. Rc1 Be3 32. Rc3 g5 33. fxg5 Bd2 34.Ra3 Re8 35. Rxa7+ Kg6 36. Rg7+ Kf5 37. Bg3 c3 38. Bd1 c2 39. Bxc2 Bxc2 40. Rxh7 Re2 41. h3 Bxb4 42. Rb7 Ba3 43. Ra7 Bb2 44. Kh2 Kxg5 45. Ra5+ Kf6 46. Ra6+ Kf547. Ra5+ Ke6 48. Ra6+ Kf7 49. Ra7+ Kg6 50. Ra6+ Kh7 51. Ra7+ Kh8 52. h4 Be4 53.Kh3 Bd4 54. Ra4 Bg1 55. Bf4 Bxg2+ 56. Kg4 Bc6 57. Ra6 Rg2+ 58. Kf5 1/2–1/2 16...Bxf5 17.Rxb7 Qd6 18.Bc4 Qe5 19.Rf3 Rab8 20.Rxa7 This is the first pawn sacrifice from Junior. Fritz interprets the position extremely optimistically and considers itself in clear advantage. 20...Bb6 21.Ra4 Bc7 22.g3 Rb1 23.Re3 Qf6 24.Ra6 Bd6 25.Re1 Rfb8 26.Bf1 h5 27.a4 c4! At this point, black was ready to sacrifice another pawn. In both cases, Junior gives more importance to the mobility of the pieces than to the material stand. 28.Rc6 Ra1 29.Bxc4 Bd7 30.Rf1 Here, with two pawns up, is when Fritz’s optimism begins to decrease. In this position, he counted on being able to play 30.Ra6, but that qualifies as a blunder [30.Ra6? Bc5+ 31.Kg2 Qf5] ceding manifest superiority to black. 30...Qe7 31.Rxd6 The white rook just did not have anywhere to go, but even in this position, Fritz still considers itself at an advantage. 31...Qxd6 32.Qf2 Qb6 In the diagram. 33.Bf4? Fritz blunders again. I believe this variation would have meant a draw. [33.Be3 Rxf1+ 34.Bxf1 Qb1 35.Bd4 Bh3 36.Qf6 Kf8=] 33...Qxf2+ 34.Kxf2 Rb2+ 35.Ke3 Rxa4 36.Bd3 Rxh2 37.c4 Fritz still considers the position as balanced. It thinks that the two passed pawns are enough compensation for the quality he lost, but Junior is going to teach him a tough lesson. 37...Ra3 38.Kd4 h4 39.g4 and the two pawns don’t go anywhere either after [39.Bc1 Ra4 40.gxh4 Rxh4+ 41.Kc5 Bf5 42.Be2 f6] 39...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.

Accredited by the Chess Federation of Madrid in Spain, Carlos García Hernández teaches chess at Humboldt University in Berlin, Germany. His weekly chess column appears in the German newspaper Neues Deutschland.

 
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