Unravel

разгадавам

razgadavam

((transitive) to clear (something) from complication or difficulty; to investigate and solve (a mystery, a problem, etc.) — see also unfold, work out)

разнищвам

razništvam

((transitive) to separate the threads of (something knitted or woven))

разплитам

razplitam

((intransitive) of threads: to become separated from something knitted or woven)