Evaluation of Opportunity and Risk. In rummy, a pivotal move that alters the course of the game typically comes from a calculated strategic choice made by a player who has a thorough understanding of both the opponenslots online casinost & the rules of the game. A play of this kind would involve a complex mental process that includes aspects of card probability, risk assessment, and psychological understanding. In addition to evaluating their own hand, players must also take into account the probable make-up of their opponents' hands as they assess the possible advantages of their chosen move against the associated risks. Taking the Big Picture into Account.