Minesweeper meets RPG.
When it raises the level killing a weak monster,and all monsters are killed finally, it is victory.
In the difference with the Minesweeper,the numerical value when the square is opened is a total value at the level of the monster of the around.
The battle starts when enemy’s square is opened.
The attack starts from you, and damages the value at the your level to the monster.
When the monster doesn’t die, it is counter attacked by the monster.
This continues until either dies.
Actually, it ends momentarily.
Some other difficulty