EuroPrisms
by FullDeck and Missing a Few Cards Open on SudokuPad
Heartburn
- Killer cages
- Whisper lines
- Dutch whisper
- German whisper
The brief
**Standard Sudoku, Cages, German and Dutch Whispers** - Standard sudoku rules apply: The digits 1 through 9 appear in every row, column, and box. - Cages: Digits in cages cannot repeat and must sum to the value shown in the upper left corner of the cage. - German Whispers: Adjacent digits along German Whispers lines must differ by at least 5. - Dutch Whispers: Adjacent digits along Dutch Whispers lines must differ by at least 4. The green lines forming small prisms are German Whispers. The orange lines forming the long prism are Dutch Whispers.