Pocket Logic Puzzles Black and White Loop

●Black and White Loop puzzles consist of a grid of cells in which some of the cells have black and white circles in them ●Try to draw a single continuous loop, which does not intersect itself ●The loop must pass through all of the cells ●The loop can enter and exit on any side of a cell ●Between two circles of the same color, the loop cannot turn ●Between two circles of different colors the loop must turn exactly once