Any imbalanced position could cause the other party to react and result in a lower "pay-off" for both parties; only equilibrium points would avoid escalation and provide a solution.
A friendly diplomatic approach to end the current conflict and maintain equilibrium would be the best solution to the current crisis.
This model is inspired by the “prisoner’s dilemma” concept and mathematically models that the most beneficial equilibrium for the EU, Russia, and Ukraine can be reached only through de-escalation, negotiation, and collaboration between both parties.