Andrey Tsukanov Published Applications :

FB2 reader is reader for books and documents in FB2 format.

Support for popular file format FB2 and FB2.ZIP
Download books from the popular e-book sites from Safari browser
Set...
zatelnet was removed
3x3 = 9 squares. Mix them and collect the back. It's very simple. Probably. Or maybe not. It was not difficult for you? Then try the 4x4 or 6x6. Or perhaps 8x8?