Box Twist
by FullDeck and Missing a Few Cards
GAS
- Killer cages
- Modular lines
The brief
Normal sudoku rules apply. Each row, column, and box must contain a complete set of the digits 1-9. Normal killer cage rules apply: digits in cages cannot repeat and must sum to the number shown in the upper left corner of the cage. Modular lines: every set of three sequential digits along a line must contain a complete set of residues modulo 3, i.e. one digit from {1,4,7}, one from {2,5,8}, and one from {3,6,9}. Digits may repeat on a line if allowed by other rules. For more of our puzzles, visit us online at missingdeck.net