Logic Masters Deutschland e.V.

Replace all letters by digits from 0 to 9. Equal letters mean equal digits, different letters different ones.

Draw a loop into the diagram which runs on the edges of the fields and does not cross or touch itself.

The meaning of the given hint numbers depends on whether they are outside or inside the loop. Numbers outside the loop indicate how often the corresponding field is touched by the loop. Numbers inside the loop are cave hints. They indicate how many fields can be seen in total in horizontal and vertical directions, including the field itself.

The colour of the hint numbers has no meaning for the puzzle.