Detailed instructions for working a group puzzle of type 'Burton'
This is a signature puzzle named 'Burton'
The 6 elements in each group of this type of puzzle are: B, U, R, T, O, and N.
Every group in the puzzle must contain exactly this set of elements.
In a Burton puzzle, each row is a group numbered as shown in the figure above.
In a Burton puzzle, each column is a group numbered as shown in the figure above.
In a Burton puzzle, each 3x2 rectangle is a group numbered as shown in the figure above.