RoCoLoco Revisited - Math puzzle.

[Dav]

@DANILIN: Thanks for trying it.  Yes the first 3x3 grid level is very easy, it gets harder, going up to 13x13. You may jump to the larger grids using the + key.

@bplus: Thanks!.  I regret not finishing up on the Halloween game.   Maybe next year....

- Dav