Enter a clue or pattern or both:
The Clue
Like the equation "x = x + 1" (10 letter answer)
The Answer
UNSOLVABLE
Tags
Notes
The answer UNSOLVABLE is so rare that it appears less than once every 2500 puzzles.
Definition
UNSOLVABLE as an adjective:
1. (insolvable, unsoluble, unsolvable, unresolvable) = not easily solved; "an apparantly insolvable problem"; "public finance...had long presented problems unsolvable or at least unsolved"- C.L.Jones