Fill each cell of the main 9x9 grid such that every row, column and 3x3 box contains a 0 and eight different digits from 1-9. No two rows, no two columns and no two boxes may be missing the same digit. For each 0 in the grid, the digits missing in its row, column and region must be three different digits. The cells outside the grid must filled in with the digits that are missing from the corresponding row/column/box. Adjacent digits on an orange Dutch whisper line must differ by at least 4.