Scrabble Kropki (442)

Place all words from the given list into the grid so that each word can be read from left to right or from top to bottom exactly once. All words must be orthogonally connected. Words that are not on the list cannot appear in the grid (not even two-letter words). The dots in the grid provide information about the lengths of word segments divided by the dot. If there is a white dot between a pair of word segments, then the difference of the lengths of these segments is exactly one. If there is a black dot between a pair of word segments, then the quotient of the lengths of these segments is exactly two. There can be either black or white dot between word segments of lengths 1 and 2. There must be a word passing through each of the given dots. Not all possible dots have been given.

Reference: WPC 2016 (65)