You ever find a puzzle that seems to mock you—like a code that hides its key in the very clues? I came across one that felt more like a chess match than a riddle, and I’m itching to see if you can outmaneuver it before I do.

Alright, here’s one that’s been stuck in my notebook: I’m a word that starts with the sound of a “c” and ends with the sound of a “d.” In the middle, I carry a silent letter that everyone forgets to notice. When you put me together, I give you a place where people go to play, learn, and sometimes lose their minds. What am I?