Keypad puzzle maker

Fill the cards with words, pictures or sounds, then mark the ones that open the lock.

The code is a handful of your own cards. Mark each one with ⊕ and it joins the code above the list.

Ask for the cards in one exact sequence, or accept the same set pressed in any order.

Every card is text, a picture or a sound — so the code can be three photographs or three sound clips.

Cards per row and card shape decide what the lock looks like. A keypad fills its rows exactly.

Every player gets the cards in a different arrangement, so positions cannot be passed around.

Show a message, confetti and a link the moment the right code goes in — the next clue in a hunt, or the next activity.

Players can race each other through the same lock and watch the other one work.

Open a finished keypad and try the lock before you build your own.