Board Game Mill (Nine Men's Morris)

Hi,

I want to show you my version of the Board game Mill.

Mill is a board game played by two players.
The game is played on a board with 24 fields where game pieces may be placed.
Fields are connected with lines.
Initially the board is empty and each of the two players hold nine pieces.

Any comments are welcome.

Google Play: play.google.com/store/apps/details?id=com.mksoftsi.mill