The game begins with a grid of cells, each of which is concealed. Some of the cells contain mines. The goal of the game is to determine all cells that are not mines.

Left-clicking on a cell reveals it. If it is a mine, the game is over. Otherwise, it is labeled with a number indicating the number of its neighboring cells that are mines. (No label indicates zero neighboring mines.) Revealing a cell with no neighboring mines will reveal its neighboring cells.

To aid your deduction process, cells believed to be mines can be flagged by right-cliking them; a right-click also unflag cells. Note that a flagged cell can still be revealed.

Note: Currently, the cells have a 15% probability of being a mine.