Twelfth Knight
by FullDeck and Missing a Few Cards
Indigestion
- Killer cages
- Anti-knight
The brief
Normal sudoku rules apply: every row, column, and box must contain a complete set of the digits 1-9. Digits in cages marked by dashed lines cannot repeat and must sum to the number shown in the upper left corner of the cage. Cells separated by a chess knight's move cannot contain the same digit.