Shredder 11
Chess Playing Program Download

• improved chess engine, approximately 100 Elo stronger than the predecessor

• daily updated chess puzzles with three levels of difficulty

• improved coach who directly shows the consequences of a bad move

• new analysis feature which allows a much quicker evaluation of alternative moves

• new opening advisor allows Shredder to play much better without opening book

• improved opening book

• tip of the day

• many more improvements

Other Features in Shredder 11 for Download

• rUser  interface that is easy to handle and can be set up individually

• Six different sets of pieces and chessboards both in 2D and 3D

• Chess engine with extremely powerful play, that can be individually adjusted and configured

• Built-in Chess coach, who is alert of mistakes and suggests better moves

• Own games can be automatically examined for mistakes

• the program always keeps up-to-date with automatic online updates

• Ability to play Chess960, also know as Fischer Random Chess

• Direct access to huge online endgame database with more than 1200 GB data for one year 

• User interface in German, English, French, Dutch, Spanish and Italian.

• Moves can easily be entered by mouse or keyboard

• Extensive documentation

• Games can be provided with alternative lines and comments

• Many features for training and analysis

• Manifold possibilities to systematically search and examine the chess endgame databases

• Free, open protocol between chess user interface and chess engine (UCI protocol)

• Possibility to simultaneously load up to ten chess engines

• Several chess engines that differ in their playing style

• Many possibilities for automatic tests and comparisons of different chess engines

• Shredderbases: new extremely fast and compact chess endgame databases

• computer assisted game analysis

• direct access to online chess opening database with more than 16 million moves for one year

• rated games against different computer opponents to measure one’s own play strength

• automatic game level where Shredder will always play with your strength

• voice output of the moves

• arrows to show threats, hints, best engine moves and the last move

• graphical display of the legal moves and the attacked pieces

• automatic histogram generation

• chess engine can access its own chess opening book

The Shredder chess programs by Stefan Meyer-Kahlen have already won nine titles as World Computer Chess Champion, are leading in all important computer chess rating lists and are accepted as the best chess programs for PCs. They combine extremely powerful chess play with easy handling. The level of play of the program can be adjusted to any chess-playing strength, so that everyone can find an adequate chess partner. Many functions are available for analyzing one's own chess games, including a built-in chess coach, who is alert to mistakes and helps improve your chess play.

Frequently asked questions about Shredder

What is the difference between Shredder Classic, Shredder UCI and Deep Shredder UCI?

All three versions are delivered with the same user interface and differ only in the included chess engine. Shredder UCI is the latest and strongest version of the Shredder family which exists since 1993. Deep Shredder UCI additionally supports computers with more than one processor and can therefore compute faster and more efficiently on those machines, but it will also run fine on normal PCs with just one processor. Shredder Classic has the same chess knowledge like his bigger brothers but his calculations are not as fast and efficient.

What do I get if I buy Shredder?

Immediately upon receipt of your payment you will get your personal registration code and a download link for your desired version by email. With this code you can unlock your version of Shredder. Together with Shredder UCI and Deep Shredder UCI you will also get a download link for the latest version of the Shredder chess opening book. With Shredder Classic you get a password for  the Shredder chess opening book that you can download here. If you pay with credit card you will usually get your code and download link immediately.

Is there also a test version of Shredder UCI and Deep Shredder UCI?

No, there is only a free test version of Shredder Classic available.

What does UCI mean?

UCI means Universal Chess Interface and defines the interface between the chess engine and the user interface. As it is an open specification you can use the Shredder chess engine and the Shredder user interface together with other products also supporting UCI. You can get the definition of UCI via download.

What are the restrictions of the non-registered test version of Shredder Classic?

In the non-registered version you cannot save any games or positions and are occasionally asked to register the program. You also can't access the extra downloads for registered users like the huge chess opening book and can access the online endgame database of Shredder only 10 times. After 30 days you either need to register or you need to delete the program from your hard drive.

What is a chess engine?

The term chess engine denotes the part of a chess program that is responsible for the intelligence of the chess play. In Shredder chess user interface and chess engine are strictly separated.

Shredder is too strong for me - I am losing every game. How can I reduce the strength of the play?

In the menu choose Levels - Limit Strength . This is where you can variably adjust the playing strength of Shredder. A beginner typically has a playing strength of 1000 Elo, a club player has about 1600 Elo.

What if my computer crashes or if I lose my code? Do I have to buy Shredder again?

No, if you lose the program or your personal license key, as a registered customer you will always get a free replacement from us. It is also possible for you to make backup copies of Shredder.

Play Chess with the Computer

Shredder comes with six different sets of chess pieces and chess boards. Shredder is available in German, English, French, Spanish and Italian. Integrated online help is available in German and English.

Download and testing FREE of charge

Become a ChessCentral Member here and you can download a slightly restricted test version of the computer chess program Shredder Classic FREE of charge. You can extensively try out this download test version for 30 days without any obligation. If you like the chess program and you would like to keep on using it, you can register here for $29.95. Upon receipt of your payment you will get a personal registration key, that allows you to use Shredder Classic without restriction. No further download will be necessary. Just play chess!

The Shredder user manual is now also available in PDF format. All features and functions of Shredder are explained in detail. You can get the manual on the Shredder download page:

 www.shredderchess.com/download.html.