iTunes File ...
iTunes File Sharing
To use some of tChess Pro's features, you will have to copy files to or from tChess's "Documents" folder on your iOS device.
Here are step-by-step instructions for accessing the Documents folder via
iTunes File Sharing.
(These instructions are for iTunes version 11. The steps may be slightly different for different versions.)
If you aren't already looking at your iTunes Library, tap the "Library" in the upper right corner.
Select your iOS device by clicking the appropriate button in the upper right corner.
Go to the "Apps" tab for your iOS device by tapping "Apps" towards the top of the iTunes window.
(See the screen shot below.)
Scroll down as necessarily until you see the File Sharing section.
Click on tChess in the list of apps at the left of the File Sharing section.
Now you can drag files to and from the Documents area at the right!