A sequence is a collection of three or more consecutive cards of the same suit, whereas a set is made up of three or four cards of the same rank but distinct suits. rammy holyGaining an advantage & receiving assistance. By melding every card in your deck into sets & sequences that are valid, you must declare your hand & win. It's okay if you've never played rummy before; the 51 Rummy App makes it simple for new players to pick up the basics and have fun by teaching them the game's rules and tactics.