It's just like the classic mines game. Just a little different. Here's how to play: click on a square, and the number tells you how many mines are around it. If you click on a mine you lose. There are 4 mines. If you get 4 – no more no less – unclicked spaces you've won. Play only once or you'll figure it out (it's not randomized).
All art by me except the white squares.