The article discusses how to create strong and safe strategies in a 3-player game that is played repeatedly. The researchers aim to find strategies that are resistant to coordinated attacks by players. They use a method inspired by previous work on the Prisoner's Dilemma game. The key findings show that the constructed strategies ensure that players who stick to the strategy will not earn less than if they deviate, and that deviating players cannot earn significantly more than non-deviating players.