Defensive strategies in game theory are to competition as A: B is to C: ?

Defensive strategies in game theory are ways to protect a player’s position against competitors. Similarly, a chess player uses defensive moves to guard against an opponent’s attack. The key idea is that in both cases the goal is to anticipate threats and reduce potential damage. For example, a firm might diversify its products to blunt rivals, just as a chess player blocks a threatening pawn line. This shows how defensive tactics aim to survive in a competitive environment.