Person-to-Person game
There was a table set out under a tree in front at the house, and the March Hare and the Hatter were having tea at it.
Alice’s Adventures in Wonderland
by Lewis Carrol
Person-to-Person game has three different cases.

1) Levels are equal.
2) Levels are neighbors
3) Levels are far away

When levels are equal, the result is draw and relationship is competition.

When levels are neighbors, the result is win-win. Prize for higher level is higher. Relationship is cooperation; the higher level is a chief.

When levels are far away, the higher level loses to death. The lower level celebrates victory. Relationship is war.

Fig.34. Person to