The 24 hour janken

This is a nikoli original easygoing party game. We will be very happy and not mind it a bit if you use this game at a home party.

Let's register from "24 hour janken World Championship" page!!

Results of The 24 hour janken

The rules for 24 hour janken


The janken world championship lasts from 00:00:00 to 23:59:59 JST (UTC +9 h) on one date.

You enter the janken championship at your entry time (when you post the entry form). Your entry time is expressed in JST (Japan Standard Time, 9 hours ahead of UTC). The year, month, and day will be ignored in the entry time. If there are several entries at the same time (the same hour, minute, and second), they are eliminated from the championship. The entrants who are not eliminated become challengers and challenge the present "king" by the janken rules.

When the challenger wins:

The winning challenger assumes the throne, and this new king will face challenges from the following entering challengers. The (new) king keeps the hand for the next challenge (that input in the entry form). The hand (rock, paper, or scissors) cannot be changed.

When the king wins:

The king has defended the throne and stays on the throne. The challenger is eliminated from the championship.

When it is a tie between the king and challenger:

The king and the challenger both leave the championship. There is now no king on the throne.

When the throne is empty:

The next challenger will become king and assume the throne by default.

When the king is on the throne at 23:59:59:

The reign of this king is from the throne was assumed (the entry time) to 23:59:59.

Among all who were kings during the 24 hours, the person with the longest reign is the champion. Similarly, the 2nd place, 3rd place, and other places are decided by the length of a reign. If there are several reigning kings with the same length of reign, the earlier participating king will get the higher rank.