Detailed instructions for working a group puzzle of type 'Marybeth'
This is a signature puzzle named 'Marybeth'
The 8 elements in each group of this type of puzzle are: M, A, R, Y, B, E, T, and H.
Every group in the puzzle must contain exactly this set of elements.
In a Marybeth puzzle, each row is a group numbered as shown in the figure above.
In a Marybeth puzzle, each column is a group numbered as shown in the figure above.
In a Marybeth puzzle, each 4x2 rectangle is a group numbered as shown in the figure above.