BrainVita PaintBall

This is a one player game. There are a set of paint-balls placed on the board with only the slot in the center left vacant .
You have to move one paintball overlapping the next in line, either horizontally or vertically.
Diagonal moves are not allowed.
As soon as you move a paintball, the one which you skipped over, bursts.
Continue moving the paint-balls one at a time, till all the paint-balls disappear leaving only one on the board.
The objective of the game is to have only ONE paintball left on the board.