Detailed instructions for working a group puzzle of type 'Charlie'

This is a signature puzzle named 'Charlie'

The 7 elements in each group of this type of puzzle are: C, H, A, R, L, I, and E.

Every group in the puzzle must contain exactly this set of elements.

Each row is a group numbered as shown in this Charlie figure.

In a Charlie puzzle, each row is a group numbered as shown in the figure above.

Each column is a group numbered as shown in this Charlie figure.

In a Charlie puzzle, each column is a group numbered as shown in the figure above.

Each septomino is a group numbered as shown in this Charlie figure.

In a Charlie puzzle, each septomino is a group numbered as shown in the figure above.