Blue Flame
by FullDeck and Missing a Few Cards Open on SudokuPad
Mild Indigestion
- Kropki dots
- Region sum lines
The brief
**Standard Sudoku, Region Sum Lines, Kropki Pairs** - Standard sudoku rules apply: The digits 1 through 9 appear in every row, column, and box. - Region Sum Line: The sum of the digits on a region sum line within a particular region must be the same for all of the regions the line passes through. - 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. Not all dots are necessarily given. Subscribe to our mailing list to receive a weekly email with all of our puzzles from the past week: https://missingdeck.net/mailing.html