The phrase "possible move" refers to an action or decision that is within one's power, ability and discretion. It suggests a course of action that can be taken, but it does not necessarily mean that it will happen. The term implies that there are other factors at play which may influence the outcome, such as personal preferences, external circumstances or constraints. In short, "possible move" is an expression used to describe something that could occur based on certain conditions being met, but its realization is not guaranteed.