The goal is to uncover all fields while marking with the flag ones with the mine beneath. In this game you have a rectangle field of covered cells some of which hide mines.

In the upper left corner of the screen you can see the number of not marked mines (which at the game start means number of mines hidden). It is your task to uncover all cells that do not hide a mine.

If you try to uncover a mine hiding cell the mine explodes finishing the game. Of course you have to uncover all the cells as fast as possible. So that you don't have to remember where all the mines are you can mark them also locking that cell for uncovering.

As a help to you an uncovered cell has a number that means the number of surrounding mines (no number equals 0). If you uncover a cell that has 0 surrounding mines automatically all surrounding 0 mines are uncovered and in each direction one cell that has at least one surrounding mine.

When you mark a cell as mine hiding then you probably can uncover some more cells (since it is logically straightforward that they do not hide mines). You can do this by uncovering each of those cells or by uncovering an already uncovered cell next to the marked one. If not all surrounding mines are marked ?uncovering? the uncovered cell has no effect but if a surrounding cell is falsely marked as mine hiding then the game is over (although you haven?t realy hit a mine).