Detailed instructions for working a group puzzle of type 'Oliver'
This is a signature puzzle named 'Oliver'
The 6 elements in each group of this type of puzzle are: O, L, I, V, E, and R.
Every group in the puzzle must contain exactly this set of elements.
In a Oliver puzzle, each row is a group numbered as shown in the figure above.
In a Oliver puzzle, each column is a group numbered as shown in the figure above.
In a Oliver puzzle, each 3x2 rectangle is a group numbered as shown in the figure above.