This puzzle solves as both a Simple Loop and a Ring-Ring! Simple Loop Draw a non-intersecting loop through the centers of all empty cells
Solve on Puzz.Link https://tinyurl.com/yspe8877 Ring-Ring Draw rectangular loops through the centers of empty cells so that every empty cell gets used. The sides of different rectangles may intersect each other, but not turn at their intersection or otherwise overlap Solve on Puzz.Link https://tinyurl.com/2p8u9dy3
