Rummy Sequence

Rummy Sequence - Rules of Pure and Impure Sequence in Rummy

Rummy has been a favorite card game, mainly Indian rummy, for ages.Players must have good skills in sorting and organizing required card combinations to win. The player who can make the first valid declaration will emerge as the winner.The game must be played following specific rules, particularly the sequence rules. The ability to create sequences quickly is critical to success.

Remember that a sequence of cards is the most vital combination in the game. If you declare cards without a sequence, you lose and must bear a hefty 80-point penalty. It's vital to understand the role played by sequences in the game to excel.

Rummy Card Sequence Variations

Before we proceed, let's develop an understanding of the 13 card rummy sequence. It groups three or more successive cards of the same suit. In a rummy game, two categories of sequences exist: pure and impure.

Pure sequence in Rummy:

  • In rummy, a pure sequence refers to a set of three or more successive cards of the same suit without any jokers substituting them. If required, a wild joker can be employed to accomplish a pure sequence, yet it must stay at its original value and not replace any missing card.
  • It's crucial to have a pure sequence to make a valid declaration in rummy. Failure to comply with this rule and declaring cards without a pure sequence can lead to invalidity, imposing a severe 80-point penalty. Observe the following examples of pure sequences.


  • Ace, 2, 3 of spades
  • 4, 5, 6 of hearts
  • 8, 9, 10 of diamonds
  • Jack, Queen, King of clubs
  • 2, 3, 4, 5 of clubs

Impure Sequence in Rummy:


  • Invalid sequence: 7 of spades, 8 of spades, 10 of spades (missing the 9 of spades)
  • Invalid sequence: Queen of hearts, King of hearts, Ace of diamonds (mixing suits)
  • Invalid sequence: 9 of clubs, 10 of clubs, Queen of diamonds (missing the Jack of clubs)

Pure Sequences with and Without the Use of a Joker Card

In rummy, to form a pure sequence, it's compulsory to have a series of three or more sequential cards belonging to the same suit. Although wild jokers can be utilized in a pure sequence, they should only be considered if they complete the sequence by retaining their original value and suit. It's worth noting that wild jokers cannot replace any other cards in the sequence.
Refer to the following examples to understand pure sequences in rummy.

Pure Sequence without Joker:


  • Ace, 2, 3 of spades
  • 4, 5, 6 of hearts
  • 7, 8, 9 of diamonds
  • Jack, Queen, King of clubs

Pure Sequence with Joker:


  • Ace, 2, Joker of Spades
  • 6, 7, Joker of Hearts, 9 of Hearts
  • 8, 9, 10 of diamonds with Joker as 7 of diamonds
  • Queen, King, Joker of clubs

Impure Sequence in Rummy


With a Printed Joker:

When you possess two cards of the same suit (e.g., 8♥ and 10♥) and draw a printed joker (PJ) on your next turn, you can use it as a replacement for the missing card (9♥), creating an impure sequence, shown as 8♥-PJ-10♥.

With Wild Joker:

Suppose you have 3♠, 5♠, and 6♠ in your hand. On your next turn, you pick K♦, which is a wild joker. You can use the joker as a substitute for the missing card, i.e., 4♠. The impure sequence formed will look like this: 3♠-K♦ (WJ)-5♠-6♠.

Rummy Sequence Rules

  • In rummy, there exist specific rules governing the formation of valid sequences. At least two sequences must be formed to make a valid declaration, with one of them being a pure sequence.
  • Three or more cards are essential to form a sequence or set in rummy. Failing to include a pure sequence in your declared hand is considered an invalid declaration and results in an 80-point penalty.
  • Therefore, it's crucial to ensure that you have a pure sequence in your hand before declaring. Although at least one pure sequence is mandatory for a valid declaration, the remaining cards can be used to form either sequences or sets, with the formation of sets being optional.

Forming Multiple Pure Sequences in Rummy

According to the rules of Rummy, creating a pure sequence is necessary when making a valid declaration. You can create more than one pure sequence based on the cards you have. Additionally, if all your cards suit pure sequences, you can arrange them accordingly.
Below are examples of valid declarations made solely of pure sequences.

Without Joker

2♥, 3♥, 4♥
5♦, 6♦, 7♦
8♠, 9♠, 10♠

With Joker:

2♦, 3♦, 4♦
7♠, 8♠, 9♠ (with Wild Joker as 6♠)
10♣, J♣, Q♣, K♣, A♣ (with Wild Joker as 9♣)

Valid Declaration in Rummy

Here are some examples of valid declarations in Rummy with respect to sequences:

  • Two Sequences: In Rummy, to declare the game, a player must form at least two sequences, out of which one must be a pure sequence. For instance, a valid declaration can be made by forming a pure sequence of 2♠-3♠-4♠ and an impure sequence of 7♦-8♦-9♦ (with 6♦ as the wild joker).
  • Three Sequences: A player can also declare the game by forming three pure sequences. For example, a valid declaration can be made with pure sequences of 4♥-5♥-6♥, 8♣-9♣-10♣, and J♦-Q♦-K♦.
  • Four Sequences: It is also possible to declare the game by forming four or more sequences. For instance, a player can declare the game with pure sequences of A♠-2♠-3♠, 4♠-5♠-6♠, 7♥-8♥-9♥, and 10♦-J♦-Q♦-K♦.

In all these examples, the declaration is valid as it meets the requirement of forming at least two pure sequences, three pure sequences, or four or more sequences, respectively. Additionally, any impure sequence formed must contain not more than one wild joker.
Here are some possible combinations of sequences that can be used to make a valid declaration in 13 card rummy:

  • One pure sequence, one impure sequence, and two sets.
  • One pure sequence, two impure sequences, and one set.
  • One pure sequence and three impure sequences.
  • Two pure sequences and two sets.
  • Two pure sequences and two impure sequences.
  • Three pure sequences and one set.
  • Three pure sequences and one impure sequence.
  • Two pure sequences.
  • Three pure sequences.
  • Four pure sequences.

Invalid Declaration in Rummy

For a valid declaration in rummy, it's crucial to follow specific rules. One of these requirements entails creating at least two sequences, with one being a pure sequence. Not adhering to these rules results in an invalid declaration.
Here are some examples of invalid declaration

  • A sequence that is not formed by consecutive cards. For example, a sequence of 5, 7, and 9 of hearts is not a valid sequence as it does not consist of consecutive cards.
  • A sequence that has more than four cards. A sequence in Rummy can only have a maximum of four cards, so if you declare a sequence with more than four cards, it would be considered invalid.
  • A sequence that includes a wild card. In some variations of Rummy, wild cards can be used to substitute for any card, but they cannot be used to create a sequence.
  • A sequence that crosses the Ace. In Rummy, Ace can be used as either a high or a low card, but it cannot be used to create a sequence that crosses over from King to Ace or from Ace to 2.

Significance of Rummy Card Sequences

Rummy implements a negative points system, wherein making a valid declaration ahead of your opponent will result in a score of zero. However, to qualify for this, your hand must consist of at least two sequences, one of which should be pure. The other sequences can consist of pure/impure sequences or sets.