The game board is a 10 x 10 grid. There are 15 cells that contain a hidden mine.
The objective is to uncover all the cells except the 15 that contain a mine.
Press the reset button to restart the game: all cells are covered again and mines are randomly placed in 15 cells.
When you click on an "empty" cell, two things can happen:
To help you avoid uncovering cells with possible mines, you can mark with the flag above the cells that you deduce that probably have a mine:
The game will not let you uncover a cell while the flag is up. Use the button at top with the flag to activate or deactivate the marking mode.
At the top right you will see a marker like this: 17 indicating at all times how many cells remain to be uncovered. So if, for example, it says 17 then it means that you only have 2 cells to uncover, because the other 15 contain mines.
The challenge of the game is to try to uncover all the cells without mines in the shortest time possible. For that reason you have a time marker above the grid.
The timer does not update every second, to save CPU and also not to stress the player. Rather, it is updated every time you uncover a cell.
The best time you get will be recorded at the bottom of the grid, game by game.