chris martens (they/them) on Nostr: today is my birthday! if you would like to celebrate, reply with a toot-sized puzzle ...

today is my birthday! if you would like to celebrate, reply with a toot-sized puzzle adhering to the following rules:

- solution takes the form of an English word or phrase, a short program/formal expression/proof, or diagram/simple drawing

- the puzzle need not be written by you, but give due credit

- everyone is welcome to play (solve, guess, ask for hints) whether or not you submit a puzzle, but of course,

- put all hints/spoilers/solutions behind CWs!