If you like games such as Sudoku, Minesweeper and Battleship, something you enjoy and Decide Square.

The meaning of the game to find all the stones on the playing field.
The numbers around the grid indicate number of stones in a row or column.
Nearby stones connected in figure. The numbers indicate how many hem and how much is already open.

More than 300 levels from simple to complex.
If it is difficult, you cann't use the hints.

Good Luck :)