Ladder Game
Random selection ladder game for fair decision making.
Participants
Results
About this tool
A digital ladder game (also known as Amidakuji or Ghost Leg) randomly assigns each participant to one of the result options. Originating in Japan, the game is widely used in Korea ("사다리타기") and Asia for fair, fun random selection. Each result is mathematically equally likely to fall on each participant — perfect for splitting tasks, picking winners, or deciding who pays.
How to use
- Edit or add the names of the participants on the left.
- Edit or add the result options on the right (must equal participant count).
- Click "Start" to randomly assign one result to each participant.
- Watch the matches reveal one by one with a smooth animation.
- Click "Reset" to clear results and play again with the same lineup.
Common use cases
- Deciding who buys lunch or coffee for the group.
- Assigning chores or chores rotation among roommates.
- Picking a presentation order at school or work.
- Choosing a winner for a small giveaway or game.
- Splitting party planning roles among friends.
Frequently asked questions
Q. Is each outcome truly random?
A. Yes. The tool uses JavaScript's Math.random() to shuffle results. Each participant has a 1/N chance for any given result.
Q. Why must participants and results have the same count?
A. A ladder game is a one-to-one mapping (a permutation). Mismatched counts would leave participants unmatched.
Q. Can I save or share the result?
A. You can take a screenshot, but the page does not store data. Re-running will produce a different random outcome.
Q. How many participants are supported?
A. Up to 10 to keep the layout readable. For larger groups, run multiple rounds.