Answer: true, there is an equilibrium.
Explanation:
the above game is a pure strategy. A pure strategy occur when the game is strictly determined. the criteria used to determine the pure strategy is maxi-min and min-max. max-min means selecting the least case from all best cases and min-max means selecting the best from all least cases.
Base on the criterion, the least out of all best for max-min is 1 unit and the best out of all least cases for min-max is 1 unit. the max-min is equal to the min-max,hence it strictly determined and therefore a pure strategy.