Shredder 9
For computer chess experts Shredder is the number one choice. Nobody can ignore its amazing seven computer chess world championship titles, won at Jakarta 1996, Paderborn 1999, London 2000, Maastricht 2001, 2002, Graz 2003 and Tel Aviv 2004.
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Deep Shredder 9 - Multiprocessor Version
Many-Time World Computer Chess Champion. For computer chess experts Shredder is the number one choice. Nobody can ignore its amazing seven computer chess world championship titles, won at Jakarta 1996, Paderborn 1999, London 2000, Maastricht 2001, 2002, Graz 2003 and Tel Aviv 2004.
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Junior 9

Junior9 by Amir Ban and Shay Bushinsky is the reigning computer chess world champion in all categories. Junior is different from all other programs in its search strategies and evaluation function. This gives the program a very distinctive style of play. The special strength of Junior is its understanding of compensation. This makes the program an extraordinarily effective tool for analysing sharp and dynamic positions, especially those involving the sacrifice of material. It is the program that is most likely to correctly understand the compensation involved, both in the execution of a sacrifice and the defence against it.

Deep Junior 9 - Multiprocessor Version

Junior9 by Amir Ban and Shay Bushinsky is the reigning computer chess world champion in all categories. Junior is different from all other programs in its search strategies and evaluation function. This gives the program a very distinctive style of play. The special strength of Junior is its understanding of compensation. This makes the program an extraordinarily effective tool for analysing sharp and dynamic positions, especially those involving the sacrifice of material. It is the program that is most likely to correctly understand the compensation involved, both in the execution of a sacrifice and the defence against it.

HIARCS 9
Scoring a solid 2:2 draw against the world's number 8, super grandmaster Evgeny Bareev, the program Hiarcs has definitely re-established itself as one of the world's best chess programs. In the years of developing Hiarcs (which stands for Higher Intelligence Auto Response Chess System), its author Mark Uniacke has successfully focussed on the implementation of a maximum of chess knowledge. The Original engine from the match against Bareev included.
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ChessTiger 15
ChessTiger by Christoph Théron is the shooting star amongst chess programs. The rate at which its playing strength has increased in recent years is sensational. Already in 1999 and 2000 it chalked up a number of remarkable tournament victories. Then it became the serial winner of the Dutch computer chess championships, taking its last title there in December 2002. In 2001 Chess Tiger won the “Republica Argentina” grandmaster tournament in Buenos Aires, ahead of a number of top GMs, with an incredible 2788 rating performance. In the SSDF computer rating lists Chess Tiger is always in one of the top places. So it is hardly surprising that computer chess fans hold this program in the very highest esteem. Most of them consider Chess Tiger one of the top chess programs in the world. Chess Tiger 15.0 runs under the original Fritz interface. There are plenty of functions for beginners, club players and grandmasters: blitz and tournament chess, handicap levels, analysis. There is a competent chess coach for beginners, with complete move descriptions, warnings and real-time help during the game. In a special sparring level the program delib-erately sets up tactical chances for you to exploit. It has many high-quality print functions, a beautiful 2D board and a state-of-the-art photo-realistic 3D board in elegant “glass” design. The program comes with a giant tournament-tested openings book and a database of 500,000 top games. It also includes free one-year access to the chess server Playchess.
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HIARCS 8
The program HIARCS, written by Mark Uniacke of England, has been one of the world’s top programs ever since it won the microcomputer world chess championship in 1993. HIARCS stands for "Higher Intelligence Auto Response Chess System". And indeed the distinguishing feature is that the author, like no other, uses a maximum of chess knowledge to increase the playing strength of his program. The new version of HIARCS has been improved and enhanced in a number of areas, especially in its search algorithms and the implementation of concrete chess knowledge. The search tree has been further optimised and results in an increase in search depth of up to three ply in the middle game. The maximum search depth is now 62 ply! This leads to substantially increased tactical power while at the same time the program maintains its active positional playing style. Chess knowledge has always been the program’s main strength. The improved search algorithms made it possible to implement even more advanced positional functions, especially in the areas of "typical pawn structures" and "dynamic evaluation of the centre". HIARCS 8 evaluates important factors like weak squares, king’s safety, piece exchanges, initiative and king attack much more reliably than the predecessor versions.
Article by Mark Uniacke

JAQUE AL PERRO GUASÓN
El primer perro que realmente sólo quiere jugar... al ajedrez. Está amaestrado para ganar, pero también sabe ser un manso cachorro que se adapta a la fuerza de juego de su amito, para que le pueda ganar una partida. Es un respondón que hace que cada partida se convierta en una experiencia inolvidable. Con sus comentarios mordaces el perro tocahuevos despierta la ambición de jugar mejor y proporciona un fuerte entrenamiento. Los que quieran aprender más pueden visitar las clases multimedia que da el gran maestro Helmut Pfleger, explicando las partidas más bellas de la historia del ajedrez. Pon a prueba tu nivel de ajedrez y tu paciencia ¡Atrévete a tocarle las piezas a la fiera del tablero! Un programa de ajedrez peligrosamente gracioso.

NIMZO 8
Nimzo is one of the world´s top programs and has won a number of computer chess tournaments. It's now available in an improved version. Highlights: Strongly improved engine, about 50 Elopoints above the previous version; Openings book extended and up to the latest theory; Play blindfold chess; Endgame Tablebases in RAM: Nimzo8 is the first program to keep tablebases in memory thus being able to use them in quiescence search; Programming language Che ++ implementation of positional knowledge (Compiler and example code included). Available in the following languages: English and German.

YOUNG TALENTS
Due to their individual ways of programming, each engine has a different approach to chess. You can play exciting engine tournaments to find out which one is best, and if you want to do some training yourself, one of these magnificent seven will provide exactly the right partner for you. 7 chess programs (engines) with Fritz surface.