Prime Cuts and Perfect Squares
- Killer cages
- Odd and even cells
- Lines of set digits
The brief
Normal Sudoku rules apply. PRIME PAIRS- All neighboring pairs of digits on red lines are prime numbers, when read from left to right or top to bottom. Prime pairs do not repeat on the same red line. In addition, the four endpoints of the red lines are each different single-digit prime numbers. PERFECT SQUARE PAIRS- All neighboring pairs of digits on blue lines are perfect squares (16, 25, 36....), when read from left to right or top to bottom. KILLER CAGES- Numbers in cages sum to the number in the top left corner of the cage. EVEN- Cells with a gray square are even.