Killer Sudoku with King's move restriction
Rules:
1. Normal sudoku rules apply
2. Cells separated by King's move in chess must contain different digits.
3. Gray squares must contain even digits.
4. Digits in a cage must sum to the clue in the corner.
5. Digits in a cage cannot repeat.
Puzzle:
Lösungscode: Enter row 8 and 9. No spaces.