Solutions More difficult has 7 entries with similar clues
- stewsbecomes more and more silently enraged
- dilemmaA difficult choice between two or more alternatives
- theoremthe more you change it, the more it's proof
- quadrilleA square dance of five or more figures for four or more couples
- accumulateAcquire more and more of
- increasinglyMore and more
- ignotum-per-ignotiusExplanatory that is more difficult to understand than the problem