Quattydods
by FullDeck and Missing a Few Cards Open on SudokuPad
Mild Indigestion
- Kropki dots
- Quadruples
- Kropki ratio
The brief
**Standard Sudoku, Quadruples, Ratio Pairs** - Standard sudoku rules apply: The digits 1 through 9 appear in every row, column, and box. - Quadruples: Digits in a Quadruple circle must be placed at least once in the four cells touching that circle. - Ratio Pairs: Cells separated by a black dot are in a 2:1 ratio. Not all dots are necessarily given.