Inspired by the Housemartins' album London 0 - Hull 4
Rules:
1. Normal Irregular Sudoku Rules Apply
2. All adjacent digits with a difference of four are marked with a white dot
3. In cages, digits sum to the number in the top left corner
Solve Online linked puzzle is without the highlighted cells
Hope you enjoy!
Solution code: Enter Column 1 and then Row 9 with no spaces
on 5. November 2021, 21:19 by uvo_mod
Labels ergänzt.