And all other fourway sports… but soccer seems as good a candidate as any.
The teams are aligned opposites face one another. Game Theory meets Bicycle Kicks.. teams can help each other out, encouraged, but not required. Teams with the highest score wins. A,B,C,D this encourages cooperation up to a certain point which is advantageous.
When a team is winning, the other teams are encouraged to make an alliance, that alliance breaks once the score is more even or the time is running short.
Just a thought’