Cloned Magic 7
- Killer cages
- Palindromes
The brief
Normal sudoku rules apply.
The shaded 3x3 regions are cloned magic squares (comprising the digits 1 to 9 once each) where each row, column, and diagonal (of 3 digits) sum to the same number.
Digits in the cages (also cloned) sum to the clue in the top left corner.
Grey lines are palindromes; they read the same in both directions.