Illiterate Loop (482)

Draw a single closed loop that travels horizontally and vertically through the centres of all white cells. The loop cannot touch or cross itself. Given is a set of letters which can never be consecutive along the loop. In this example none of these sequences can appear within the loop: ABC, ACB, BAC, BCA, CAB, CBA. (In other words – the letters along the loop are never an anagram of the given word.)

Reference: WPC 2016 (65)