Detailed instructions for working a group puzzle of type 'Sherman'
This is a signature puzzle named 'Sherman'
The 7 elements in each group of this type of puzzle are: S, H, E, R, M, A, and N.
Every group in the puzzle must contain exactly this set of elements.
In a Sherman puzzle, each row is a group numbered as shown in the figure above.
In a Sherman puzzle, each column is a group numbered as shown in the figure above.
In a Sherman puzzle, each septomino is a group numbered as shown in the figure above.