It is the goal of players to "knock" when they think their opponent has more unmatched cards than they do. Gin Rummy has remained popular for many generations because of its strategic depth and straightforward rules. Contract Rummy and Kalooki are twowild slots more variations that highlight the game's versatility by providing distinct twists that keep players interested. Rummy competitions have become a popular way for players to show off their abilities and vie for rewards. These events can be anything from neighborhood get-togethers at community centers to international competitions held online. Winners move up through brackets until a champion is crowned, and tournaments frequently have organized formats that let players compete in several rounds.