# Explain how π – 1 + 50 + ⅔ × 1000 is PLONK

The clue comes from a Guardian Newspaper cluing competition from 2020.

It’s carelessly set down: π – 1 + 50 + ⅔ × 1000 (5)

• It’s carelessly set down = PLONK
• π – 1 = P [Pi - i = P]
• + 50 = L [L is Roman numeral for 50]

That leaves: "+ ⅔ × 1000".

Is the K derived from 1000? If so ⅔ must be ON which I don't get.

Also it's "+ ⅔ × 1000" and not "+ ⅔ + 1000". Can "⅔ × 1000 = 666.666…" mean ONK somehow?

I would think that it is:

Pi - 1 (I) = P

50 = L

2/3 × 1000 = 2/3 x (ONE thousand) = (two-thirds of ONE) K = ONK

I don't have the rep to add a comment, but kagami's explanation is correct. The clue setter's own explanation was presented in this comment: https://www.theguardian.com/crosswords/crossword-blog/2020/mar/30/crossword-roundup-fancy-learning-cryptic-crosswords-during-coronavirus-lockdown#comment-139571305

as "Pi + L + ONe K"

• Welcome to Puzzling.SE! This could make a good answer in its own right if you were to edit it to quote the author's reasoning directly instead of just linking to it, as links tend to die out over time. Commented Sep 2 at 14:15
• Thanks for the comments - edited to do this. Commented Sep 3 at 9:25