Ichimaga is a Logic puzzle invented by Nikoli.
The line may change direction 90 degrees no more than once..
The lines must not cross other lines.
Any number of lines may be connected to the empty circle (at least one).
The number of lines connected to the circle must match the digit in that circle.
The task is to connect all circles by horizontal and vertical lines.
Ichimaga is a Logic puzzle invented by Nikoli