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

This is a signature puzzle named 'Stanford'

The 8 elements in each group of this type of puzzle are: S, T, A, N, F, O, R, and D.

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

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

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

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

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

Each 4x2 rectangle is a group numbered as shown in this Stanford figure.

In a Stanford puzzle, each 4x2 rectangle is a group numbered as shown in the figure above.