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