Shmodular
by FullDeck and Missing a Few Cards Open on SudokuPad
Heartburn
- Kropki dots
- Whisper lines
- Modular lines
- Kropki ratio
- Whisper 4
The brief
**Sudoku, Duality Lines (Modular/Whisper-4), Ratio Pairs** - Standard sudoku rules apply: The digits 1 through 9 appear in every row, column, and box. - Duality Lines: All lines are both Modular AND Whisper-4. - Modular lines: Any set of three adjacent digits along a modular line has three different remainders when divided by 3. - Whisper-4 Lines: Adjacent digits along a Whisper-4 Line must differ by at least 4. - Ratio Pairs: Digits in cells separated by a black dot are in a 1:2 ratio. Subscribe to our mailing list to receive a weekly email with all of our puzzles from the past week: https://missingdeck.net/mailing.html