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

This is a signature puzzle named 'Rinaldo'

The 7 elements in each group of this type of puzzle are: R, I, N, A, L, D, and O.

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

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

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

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

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

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

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