[theGeatZhopa]

"no cheat!" The Queen said! What happened then, does contradict the framing story. What is forbidden by story is still is happening.

They also could have brought tea with them. Which is not allowed by story. But they did exactly that: "not allowed substance were brought and consumed"

But cool mind playing puzzle.

[n1b0m]

The framing story doesn’t say they won’t cheat. It only says “There will be trained observers to make sure you cannot cheat.”