The pattern to recognise
A pure sequence uses consecutive natural ranks from one suit, without a joker standing in for a missing rank. A common example is 4♥ 5♥ 6♥. The suit stays the same and each next rank follows in order.
A sequence may be longer than three cards when the table allows it. Check the selected format’s exact rules, especially where a designated wild card is being used at its natural rank rather than as a substitute.
Compare these examples
| Cards | Pattern | Reason |
|---|---|---|
| 4♥ 5♥ 6♥ | Pure sequence | Same suit, consecutive natural ranks. |
| 4♥ 5♣ 6♥ | Mixed-suit group | The ranks are consecutive but the suit changes. |
| 4♥ Joker 6♥ | Impure sequence example | A joker stands in for the missing 5♥. |
| 4♥ 4♣ 4♦ | Set | Same rank across different suits. |
| 7♠ 8♠ 9♠ 10♠ | Longer pure-sequence example | Consecutive natural ranks in one suit, subject to table rules. |
Why finding one is not the whole declaration
A pure sequence meets one important condition in common 13-card rummy. The rest of the hand must still satisfy the required second sequence and the remaining grouping rules.
Count the entire arrangement. A group such as 4♥ 5♥ 6♥ does not make ten unrelated remaining cards a valid declaration. Use the worked 13-card example to see how all groups fit together.
Ace and joker questions to read first
Check which ace sequences are allowed and how wild cards behave at their natural ranks. Avoid assuming that a rule from one provider or table automatically applies to another. The examples here teach a common pattern rather than a named app’s complete rulebook.
Sources and scope
Sources reviewed on 23 October 2026. Android menus and publisher releases can change. Card examples explain common conventions; the selected table’s own published rules govern its format.