Unknown Doubles
by FullDeck and Missing a Few Cards Open on SudokuPad
Indigestion
- Kropki dots
- X-sums
- Kropki ratio
The brief
**Sudoku, X-Sums, Ratio Pairs** - Standard sudoku rules apply: The digits 1 through 9 appear in every row, column, and box. - X-Sums: Clues outside the grid give the sum of the first X numbers placed in the corresponding row or column, where X is digit in the cell next to the X-sum clue. - Ratio pairs: Cells separated by a black dot are in a 2:1 ratio. Subscribe to our mailing list to receive a weekly email with all of our puzzles from the past week: https://missingdeck.net/mailing