There isn't, but maybe there should be. Sorry about that. For now, if you open the browser dev tools (F12 on Windows or opt-command-J on mac, in chrome anyway),

There isn't, but maybe there should be. Sorry about that. For now, if you open the browser dev tools (F12 on Windows or opt-command-J on mac, in chrome anyway), go to the network tab, and refresh and look at the network request to the /puzzle endpoint on load, you'll see the solution.