It is a game that erases the pieces placed on the board and leaves one piece at the end.
If you jump over one piece next to a piece, the jumped piece disappears.
If there is a piece at the destination, you cannot jump.
When you touch the piece, the jump destination is displayed in red.
In that state, dragging in the direction of the jump destination changes the jump destination from red to green. When you release the piece, the piece will move.
Finally, when the pieces are one, it is complete, but the perfect way to finish is to finish the last piece at the position of the red ring on the board.
The level of the game starts from 1, but you can level up by 20 points.
At the perfect end, you will gain 5 points.
When the game is over, points will be deducted.