** Detailed instructions for working a group puzzle of type 'Sudoku-8' **

The 8 elements in each group of this type of puzzle are: **1**, **2**, **3**, **4**, **5**, **6**, **7**, and **8**.

Every group in the puzzle must contain *exactly* this set of elements.

In a Sudoku-8 puzzle, each row is a group numbered as shown in the figure above.

In a Sudoku-8 puzzle, each column is a group numbered as shown in the figure above.

In a Sudoku-8 puzzle, each 4x2 rectangle is a group numbered as shown in the figure above.