I like the idea but I cant see where can I use skill there.
Its 100% luck based game.
I don't think its 100% luck, here read this quote from OP
When you dig you get a hint on what the surrounding tiles may contain. Using this information you can decide where to dig for a better return per dig. A few players have gotten the hang of this game really quickly and have already started making withdrawals.
But I can't still figure out the hang of the game