• Chess Premium is now universal — fully native on both iPhone and iPad
• Fixed an issue where the engine could incorrectly declare or miss checkmate
• Fixed a bug that caused phantom pieces to appear or pieces to vanish mid-game — if you still experience this, please email support@optimesoftware.com (a short video helps enormously)
• Removed debug output from the chess engine, so it thinks faster and uses less battery
• Fixed an issue that could occasionally cause a crash after undo

• Chess Premium is now universal — fully native on both iPhone and iPad
• Fixed an issue where the engine could incorrectly declare or miss checkmate
• Fixed a bug that caused phantom pieces to appear or pieces to vanish mid-game — if you still experience this, please email support@optimesoftware.com (a short video helps enormously)
• Removed debug output from the chess engine, so it thinks faster and uses less battery

• Fixed issue with board scale on larger iPhones
• Support for all iPhone screen sizes
• Minor bug fixes
• Fixed issue where app would occasionally crash on undo or new game

• Support for all iPhone screen sizes
• Minor bug fixes
• Fixed issue where app would occasionally crash on undo or new game

• Support for all iPhone screen sizes
• Minor bug fixes

-Updated graphics and layouts for high-resolution phones and tablets
-Fixed issue that was causing periodic crashes in v1.40

• Fixed issue which was causing piece movement animation to be choppy on iOS 11
• Minor bug fixes

• Updated for iOS 9
• Minor bug fixes

• Updated icon for iOS 7
• Minor bug fixes

* Added support for iPhone 5
* Minor bug fixes

* Minor bug fixes
* Reduced binary size

* Added music
* Improved sound effects

Music and sound effects can be disabled through the Options Screen, which can be accessed from the main menu.

You can still listen to your own music if you like. We'll turn off our music if your music is already playing.

* Move clock is now disabled by default, you can change the computer "Think Time" or enable the move clock through the Options Screen.
* Fixed issues with board rotation
* Major bug fixes to address issues with freezing and new pieces appearing on board
* Updated More Games Screen

If you encounter any issues with this update or have feedback on the game, please drop us an e-mail at support@optimesoftware.com.

This version contains the following changes:

* High-resolution images for iPhone 4 retina display
* Improved look and feel of all user interface screens
* Better game state persistence when fast app switching is used
* Fixed bug where timer would continue running when application was suspended

This version contains the following changes:

* iOS 4.0 compatibility
* Minor bug fixes

This version contains the following changes:

* Fixed issue which caused the application to crash on launch under certain conditions

This version contains the following changes:

* Minor bug fixes

This version contains the following changes:

* Fixed several issues that were causing the application to crash on launch

This version contains the following changes:

* Updated 3rd-party libraries
* Minor bug fixes