Bug fixes and improvements

- Updated for the latest version of iOS
- Fixed a bug where the animations would become jerky if the app was open for a long time

- Added the ability to review your opponent's last move if he requests a takeback
- Added a setting to control the sound volume (in the Interface tab)

- Improved the process for logging in to Game Center

- NOTE: This version removes the old system for playing online games and chatting with online opponents. If you're still playing games using the old system, please finish those games and switch to the new system. (You were told this transition was going to happen more than a year ago.) The new system is called "Play online" and is accessed via the cloud button on the main toolbar.

- Added support for Dark Mode
- Added support for split-screen mode on the iPad
- Increased the size of the opening library to 75,000 moves

- Fixed a bug where some "Play online" games could get unsynchronized and stuck
- Added a message to explain that "Play online" games are not necessarily real-time

- This update adds a new system for playing online. You can access it by tapping on the cloud button on the main toolbar. It should be much easier to use and more reliable than the old system. The old system is still included, so if you have active games, you can finish them. But it will be removed in a future version of tChess. I hope you enjoy the new system!

- Support for the iPhone X screen resolution and layout
- Bug fixes

- Updated for iOS 11

- Native support for the iPhone 6/6+ screen resolutions
- New "Benchmark" feature: measure your iOS device's performance
- Optional "New game" toolbar button

- New “Toolbar buttons” feature allows you to customize the main toolbar
- New (optional) Game Center toolbar button allows you to quickly access the list of turn-based Game Center games
- Fixed a bug that was causing Profile information to be deleted in some cases
- Fixed a bug that was causing tChess to crash in some cases when submitting Game Center moves

- Added a "Dark background" option in the Appearance menu

- Redesigned to match Apple's latest design language!
tChess has a new look, but retains its "classic" look on older versions of iOS.

- Can play against any other version of tChess (Lite, Pro, etc.) via Game Center
- Ability to send messages to Game Center opponents
- Added the back and forward toolbar buttons during Game Center games
- Improvements to the engine; now much better at finding optimal checkmates

- Improvements to the chess engine

- Support for the iPhone 5's new screen size and iOS 6
- Option to flip all the pieces when it's black's turn (for two-player games)

- Support for the new iPad's Retina Display
- Optimized 3-D engine (over 3 times faster!)
- Redesigned menu system
- Online play (Game Center) improvements

- Added support for German, French, Japanese, Korean, and Chinese

- Added support for turn-based Game Center (new for iOS 5)!

- Added Game Center support. Play chess with your friends in real time!!

- Pauses the chess clock when tChess isn't the active app
- Fixes an orientation/rotation problem with iOS 4.2.1 on the iPad

- Improved variability of opening moves
- Improved performance for iOS 4

- Support for iOS 4.0
- Support for Retina Display
- Replaced 2-D Staunton pieces with high-resolution photorealistic raytraced pieces
- Improved animation smoothness
- Adjusted engine strength vs. rating

- Added landscape mode for iPad

- Added hand-painted 2-D wood graphics
- Added freely-rotating 3-D board with high-polygon-count Staunton pieces and dynamic lighting
- Added iPad support

- Replaced the computer's difficulty levels with ratings: play against any ELO rating from 500 to 1200
- Replaced the Statistics feature with the new "Profile" feature: play against the computer for rating points, and track your progress with the Rating History feature

NOTE: This update replaces the existing Statistics feature. Please write down your current statistics if you want to save them.