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Codebreakers, lock-pickers, and late-night overthinkers — pull up a chair. 🔐
Fun fact: the oldest known lock is roughly 4,000 years old, a chunky wooden pin-tumbler contraption from ancient Egypt. One famous oversized example, nearly two feet long, turned up in the ruins of a palace near Nineveh, guarding doors with a clever set of dropping pins. The same falling-pin trick still lives inside the modern lock on your front door. Four millennia of humans trying to keep each other out of the good stuff. Charming, really.
Tonight, though, the lock isn't wooden and the pins won't help you. Tonight it's a keypad, three digits, and a logbook full of clues some very tidy curator left behind. Let's step up to the vault and see if you've got the touch.
Ready? Game on.
The Drummond Museum keeps its rarest acquisition behind a vault with a three-digit keypad. No alarms tonight. Just you, a penlight, and the curator's leather logbook lying open on the desk.
The curator, bless their methodical heart, recorded five test codes they once punched in, each annotated with exactly how close it landed:
6 8 2 — one digit is correct and sitting in its correct position.
7 5 0 — one digit is correct, but it's in the wrong position.
4 0 7 — one digit is correct and correctly placed; a second digit is also correct but in the wrong position.
1 3 8 — none of these digits appear in the code.
9 3 6 — none of these digits appear in the code.
The penlight flickers. Somewhere down the marble hall, a guard's footsteps echo. You've got everything the curator wrote down and nothing else.
What is the code?
Did this one set your brain pacing the corridors? Good — that's the puzzle earning its keep. Maybe you locked in an answer instantly. Maybe you scribbled, crossed out, and started over twice. Either way, every clue you need is sitting right there in the logbook.
