Detailed instructions for working a group puzzle of type 'Ethan'
This is a signature puzzle named 'Ethan'
The 5 elements in each group of this type of puzzle are: E, T, H, A, and N.
Every group in the puzzle must contain exactly this set of elements.
In a Ethan puzzle, each row is a group numbered as shown in the figure above.
In a Ethan puzzle, each column is a group numbered as shown in the figure above.
In a Ethan puzzle, each pentomino is a group numbered as shown in the figure above.