No Longer 21
by FullDeck and Missing a Few Cards Open on SudokuPad
- Kropki dots
- Whisper lines
- Whisper 4
- Whisper 5
The brief
**Sudoku, Whisper-5, Whisper-4, Kropki Pairs** - Standard sudoku rules apply: The digits 1 through 9 appear in every row, column, and box. - Whisper-5: Adjacent digits along a Whisper-5 line must differ by at least five. In this puzzle, the line forming the numbers are Whisper-5 lines. - Whisper-4: Adjacent digits along a Whisper-4 line must differ by at least four. In this puzzle, the line forming the arrow is a Whisper-4 line. - Kropki Pairs: Digits in cells separated by a black dot are in a 1:2 ratio. Digits in cells separated by a white dot are consecutive. For more of our puzzles, please visit https://missingdeck.net or join our mailing list to get a weekly digest of puzzles: missingdeck.net/mailing