Three by Three in the Fog
- Fog of war
- Arrows
- Negative constraint
The brief
Normal Sudoku rules do not apply.
Place the digits from 1-9 in the grid so that they do not repeat in any row or column. Digits can (and will) repeat in each 3x3 box. Each box will use exactly 3 of the digits from 1-9.
Cells that are orthogonally adjacent cells cannot contain consecutive digits.
Arrows: Digits along an arrow sum the the number in that arrows circle.
Some of the grid is covered by fog, placing correct digits will clear surrounding fog, no guesses are required.