Fair Split
Two players share coins and make deals.
Divide the pot. Make a deal.
One player offers a split. The other accepts it or says no deal.
Use two different names.
Bank 60 coins together, and each of you needs 20. Higher score takes the win.
Player 1 splits 10 coins
Pass to Player 2
Player 2 decides
Deal accepted
Both players get 0 this round.
Both players agreed, so both keep points.
Final result
Player 1 0
Player 2 0
Balanced table
A deal needs both players. Very low offers can be rejected, so fairness can be part of a winning strategy.
In game theory, the Splitter is the proposer and the Decider is the responder.