Block Chain
by FullDeck and Missing a Few Cards Open on SudokuPad
Strong Indigestion
- Kropki dots
- Region sum lines
The brief
**Sudoku, Region Sum Lines, Kropki Pairs** - Standard sudoku rules apply: The digits 1 through 9 appear in every row, column, and box. - Region Sum Lines: Box borders split blue region sum lines into sections and the digits on those section must sum to the same value. - Kropki pairs: Digits in cells separated by a black dot are in a 2:1 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