Layers
by FullDeck and Missing a Few Cards Open on SudokuPad
Heartburn
- Region sum lines
The brief
**Sudoku, Region Sum Lines** - Standard sudoku rules apply: The digits 1 through 9 appear in every row, column, and box. - Region Sum Lines: Box borders split blue lines into sections, and the digits on those sections must sum to the same value. Subscribe to our mailing list to receive a weekly email with all of our puzzles from the previous week: https://missingdeck.net/mailing.html