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