Santa Clara
- Killer cages
- Diagonals
- Indexing
The brief
Normal sudoku rules apply.
Digits in column 1 indicate the column in which the digit 1 appears in that row (e.g. if r4c1 is a 6, r4c6 is a 1). The same applies to columns 5 and 9, with the digits 5 and 9 respectively.
Digits do not repeat along the given diagonals.
Digits in cages do not repeat, and must sum to the given total.