- - Distributing the red hats can be most difficult
- - the most difficult threads to disentangle
- - Most tough
- - Trashed (anag) — most oppressive
- - Maximally challenging
- - Most knotty
- - Most challenging
- - Most difficult
- - Most arduous
- - Most demanding
- - Unravelling threads is most difficult
- - Most difficult dart he's thrown
- - Most effortful
- - Most challenging^HARDES
- - The most difficult
- - Most unyielding
- - Most adamant
- - Most laborious.
- - The most difficult harvest was taken from five to five hundred
- - "Sorry Seems to Be the ... Word," a hit by Elton John, that was covered by Blue in "One Love"
- - Firmest
- - Badly trashed, like last clue solved?
- - The ultimate in knots
- - Rating a 10 on the Mohs scale
- - Adjective for diamonds
- - At the top of the Mohs scale
- - Least malleable
- - Mohs scale meaning of 10
- - Like diamond, on the Mohs scale
- - Adjective for diamond
- - Steeliest.
- - Like diamond.
- - Adjective for a diamond.
- - Like Saturday puzzles
- - 10 on the Mohs scale
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