Count the scope first
The tool receives one group of 3–5 cards. It does not receive thirteen cards or know whether another group reuses a physical card. A green result must not be read as permission to declare.
A separate whole-hand task
A13-card Indian Rummy arrangement needs the required sequences, including a pure sequence, and a complete assignment of the remaining cards. The referenced beginner account describes at least two sequences with at least one pure. Turn procedure and the actual table’s full rules remain separate checks.
An inspectable learning example
Take 4♥5♥6♥;8♣9♣10♣;7♣7♦7♥;J♣J♦J♥J♠. These thirteen distinct cards form two natural runs and two natural sets. This is an original arrangement example, not a live-turn ruling.
Explain each job
Mark every physical card once when arranging a complete hand on paper. A card that appears to fit two groups still cannot serve both simultaneously. The site does not automate that whole-hand assignment.