Ladder Game (Random Picker)

The Ladder Game: A Simple Way to Guarantee Fairness

The ladder game (called Amidakuji in Japan and 사다리타기 in Korea) solves a common problem: how do you assign random outcomes to a group of people in a way everyone can trust? By drawing random horizontal rungs between vertical lines and tracing each path from top to bottom, the method guarantees that every starting position maps to exactly one ending position — no duplicates, no favoritism, and the whole process can be visually verified.