What's New

Compatibility fixes: in some circumstances the opening book was not visible and the email form was behaving badly.

App Description

Shredder, the most successful chess program ever, is now also available for the iPhone. You can play against Shredder, analyze with him and solve chess puzzles. It offers the usual Shredder standard for your pocket.

In addition to the outstanding playing strength of the 12 times computer chess world champion, Shredder is also able to mimic the play of a human chess player with any playing strength. He even deliberately makes typical human mistakes in those levels.

Solve 1000 built in chess puzzles. Shredder keeps track of your performance and offers advice if needed.

You can adjust Shredder’s playing strength from beginner to master level. If you like, Shredder automatically adjusts his strength to yours. He even calculates an Elo rating for you. This is how the playing strength of chess players is typically measured.

During the game a coach is watching your moves and warns you if you are about to make a mistake.

See how you are getting better and better the more games you play and the more chess puzzles you solve.


* Adjustable playing strength
* Intuitive and very easy to operate
* 1000 built in chess puzzles
* See your rating in a diagram
* Outstanding playing strength on the iPhone
* Analyse your games with Shredder, find your mistakes and improve your play
* Coach shows your mistakes
* Different playing styles from passive to aggressive
* Great variety: opening book with more than one million moves
* Enter and analyze any position you like
* Load and save games (incl. names, date, etc.)
* Send games via email
* Different chess boards and pieces
* Support for VoiceOver / Accessibility
* Improve your play whenever and wherever you like

Also check out our highly refined version for iPad.

iPhone Screenshots

(click to enlarge)

Shredder Chess screenshot 1 Shredder Chess screenshot 2 Shredder Chess screenshot 3 Shredder Chess screenshot 4 Shredder Chess screenshot 5

App Changes

  • June 25, 2011 New version 1.4.5
  • July 13, 2011 Price decrease: $7.99 -> $1.99
  • August 02, 2011 Price increase: $1.99 -> $7.99
  • February 09, 2012 Price decrease: $7.99 -> $1.99
  • February 14, 2012 Price increase: $1.99 -> $7.99
  • July 27, 2012 Price decrease: $7.99 -> $1.99
  • August 02, 2012 Price increase: $1.99 -> $7.99
  • November 30, 2012 New version 1.5.0
  • November 19, 2013 Price decrease: $7.99 -> $3.99
  • February 07, 2014 Price increase: $3.99 -> $7.99
  • June 26, 2014 Price decrease: $7.99 -> $3.99
  • October 19, 2014 New version 1.7.0
  • November 08, 2016 New version 1.7.1
  • July 15, 2020 New version 1.10.0
  • August 06, 2021 New version 1.11.0

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