Something's a bit off in the square below - some might say it's impure.
D O R A N R E N Y K A G E T C M L L I A O W H L B
What's special about the square, and what's wrong? (There are actually two things wrong, though they complement each other.)
Puzzling Stack Exchange is a question and answer site for those who create, solve, and study puzzles. It only takes a minute to sign up.Sign up to join this community
The thing that's special is that it contains
a number of colour words that can be read off Boggle-style:
The two main tones: white and black;
Two of the three primary-school primary colours: red and yellow (the third being blue);
The three "true" secondary colours, also used in printing: cyan, magenta, yellow
So there's one missing element and one extra element,
blue and orange, which are used in visual arts for their contrast.