Above Thy Neighbour
- Minimum and maximum cells
The brief
- Each row, column and box must contain the digits 0-8 once each.
- The digit in a yellow cell indicates exactly how many neighbours it has (orthogonally or diagonally) with a lower value than itself. Blue cells never have this property. Eg: a yellow 6 would have exactly 6 neighbours lower than 6, but a blue 6 wouldn’t. All cells are correctly coloured.
- White lines connect two digits that sum to 8. Not all possible white lines are given.