combination possible as per the above rules to declare 13 cards in rummy: 1. there is one pure sequence of 4 cards. 2. there is impure sequence of 3 cards

the basic rummy sequence rules require players to form valid sets and sequences using their dealt cards. a sequence consists of three or more consecutive cards

pure sequence : a pure sequence is a group of three or more consecutive cards of the same suit. impure sequence : in rummy game, an impure sequence is created