Tree Lighting 2025
by FullDeck and Missing a Few Cards Open on SudokuPad
- Kropki dots
- Whisper lines
- Entropic lines
- Whisper 5,
The brief
**Sudoku, Whisper-5, Kropki, Entropic Line** - Standard sudoku rules apply: The digits 1 through 9 appear in every row, column, and box. - Whisper-5: Adjacent digits along a Whisper-5 line must differ by at least five. In this puzzle, all lines except the tree trunk are Whisper-5 Lines. - 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. - Entropic Line: Any set of three adjacent cells along an entropic line must contain a low digit (123), a middle digit (456), and a high digit (789). In this puzzle, the trunk of the tree (vertical line in column 5) is the only entropic line. To get a weekly digest of puzzles, please join our mailing list at https://missingdeck.net/mailing.html