challenge comparison

20 LETTERS · STARTS WITH C

challenge comparison is a valid 20-letter word worth 31 points in Scrabble and 39 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

C3H4A1L1L1E1N1G2E1C3O1M3P3A1R1I1S1O1N1

3 + 4 + 1 + 1 + 1 + 1 + 1 + 2 + 1 + 0 + 3 + 1 + 3 + 3 + 1 + 1 + 1 + 1 + 1 + 1 =31 PTS

DOUBLE WORD → 62TRIPLE WORD → 93

MEANING

What does challenge comparison mean?