Quapki
by FullDeck and Missing a Few Cards Open on SudokuPad
Indigestion
- Kropki dots
- Quadruples
The brief
- 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. - Kropki pairs: Digits separated by a black dot are in a 1:2 ratio. Not all possible dots are given.