Shredder (chess)

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, the World Computer Speed Chess Championship in 2002, 2003, 2004, 2005, and 2007, and the World Chess Software Championship in 2010.

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 2007. Version 12 was released in January 2010. 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:

Year	Location	Title
1996	Jakarta	Micro Computer World Champion
1999	Paderborn	Micro Computer World Champion
		Computer Chess World Champion
2000	London	Micro Computer World Champion
2001	Maastricht	Micro Computer World Champion Single CPU
2002		Blitz World Champion
2003	Graz	Computer Chess World Champion
		Blitz World Champion
2004	Tel Aviv	Blitz World Champion
2005	Reykjavík	Blitz World Champion
2006	Mainz	Chess960 World Champion
2007	Amsterdam	Blitz World Champion
2010	Kanazawa	Chess Software World Champion

Platforms

Shredder is one of the few commercial chess programs which is available not only for Windows and Mac OS, but also for Linux. Shredder is also available on the iPhone, the iPad^[1] and Android.^[2]

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
• Review of Shredder for Linux

References

1. ^ "Shredder Chess for iPhone, iPod touch, and iPad on the iTunes App Store". Apple.com. http://itunes.apple.com/us/app/shredder-chess/id308032437?mt=8. Retrieved 5 April 2011. 
2. ^ "Shredder Computer Chess Download - Shredder for Android". ShredderChess.com. http://www.shredderchess.com/chess-program/shredder-android.html. Retrieved 5 April 2011.