Detailed instructions for working a group puzzle of type 'Percival'
This is a signature puzzle named 'Percival'
The 8 elements in each group of this type of puzzle are: P, E, R, C, I, V, A, and L.
Every group in the puzzle must contain exactly this set of elements.
In a Percival puzzle, each row is a group numbered as shown in the figure above.
In a Percival puzzle, each column is a group numbered as shown in the figure above.
In a Percival puzzle, each 4x2 rectangle is a group numbered as shown in the figure above.