shredder

This article uses algebraic notation to describe chess moves.

Shredder is a commercial chess program developed in Germany by Stefan Meyer-Kahlen in 1993. Shredder won the World Microcomputer Chess Championship in 1996 and 2000, the World Computer Chess Championship in 1999 and 2003, and the World Computer Speed Chess Championship in 2002, 2003, 2004, 2005, and 2007.

On the November 24, 2006 SSDF rating list, Shredder 10.0 placed sixth, with a rating of 2832 — 8 points below Spike 1.2 , 10 points below Fruit 2.2.1, 18 points below HIARCS 10, 22 points below Junior 10 and 86 points below #1 ranked Rybka 1.2, which had a rating of 2918.

On the January 24, 2007 CEGT rating list, Deep Shredder 10.0 placed fifth, with a rating of 2855 — 5 points below LoopMp, 22 points below Deep Fritz 10, and 160 points below #1 ranked Rybka 2.1, which had a rating of 3015.

Version 10.0 was released in June 2006. Version 11.0 was released in October of 2007. The "Deep" version takes advantage of multiple CPUs or multiple core CPUs.

Awards

Shredder has won a number of computer chess tournaments since its inception:

Sample game

The following game was played between Shredder (playing as black) and List at the 2003 World Computer Chess Championship. Shredder sacrifices a piece in exchange for a strong initiative in a position too complex for the computer to calculate to the end.

1.e4 c5 2.Nc3 e6 3.d4 cxd4 4.Qxd4 Nc6 5.Qa4 Bc5 6.Nb5 Nf6 7.e5 Nxe5 8.Bf4 Nfg4 9.Nh3 f6 10.Be2 h5 11.Bxg4 hxg4 12.Bxe5 fxe5 13.Qxg4 O-O 14.O-O-O d5 15.Rhf1 Bd7 16.Nc3 Rc8 17.Kb1 Bd4 18.Ne2 Bxb2 19.Kxb2 Qb6+ 20.Kc1 Qa6 21.Rd2 Rc4 22.Qg6 Be8 23.Qd3 Qxa2 24.Kd1 Qa1+ 25.Nc1 Ba4 26.Qg6 Rf6 27.Qg5 Rf5 28.Qe3 Qb2 29.Qe2 e4 30.f4 e3 31.Qxe3 Bxc2+ 32.Ke2 Re4 0-1

See also

• Chess engine
• Chess (programming)

External links

• Shredder home page
• Shredder player profile at ChessGames.com

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