As the game goes on, however, you may have more options if you hold onto low-value cards that have the potential to complete sets or runs. Your chances of winning Gin Rumega winner rummymmy can be increased by carefully controlling your discards and keeping an eye on your opponent's movements. Though the classic form of Gin Rummy is still quite popular, there are a few variants that offer different takes on the gameplay. Oklahoma Gin is one such variation that presents the idea of "knocking with no unmatched cards.".