[1. There are 20 game participants in total, and the task is for 20 people to fight each other until one person remains.
[2. Each game participant will receive a number, and this number is the number that represents you.
[3. Since the participants have different identities from different generations, appropriate adjustments will be made in order to equalize the strength.
[4. The uninhabited land is divided into 20 (4*5) areas, A~E horizontally and 1~4 vertically.
5. It is allowed to kill others by any means.
[6. Every time you kill someone, you will get an item that is beneficial to the game]
[7. You are not allowed to enter the restricted area or leave the boundary of the no-man's land, otherwise you will be eliminated.
[8. The elimination list and restricted areas will be announced from time to time.
[9. When there are two players left in the end, they will be automatically transferred to area A1 for the final duel.