Sudoku 16x16 Volume 7

In this seventh volume of large 16x16 Sudoku puzzles, just as in the previous six volumes, every puzzle can be solved simply by observation - there's no need to write lots of tiny pencilmarks into each grid cell. Just place 1 to 9 and A to G into each of the rows, columns and 4x4 boxes. Visit www.SudokuXtra.com for more details.