Combination Lock
by FullDeck and Missing a Few Cards Open on SudokuPad
Heartburn
- Whisper lines
- Entropic lines
- Whisper 4
The brief
**Sudoku, Entropic Lines, Whisper-4 Lines** - Standard 9x9 sudoku: The digits 1 through 9 appear in every row, column, and box without repetition. - Entropic lines: Any set of three adjacent cells along a THIN, peach entropic line must contain a low digit (123), a middle digit (456), and a high digit (789). Wraps - Whisper-4: Adjacent digits along a THICK, orange Whisper-4 line must differ by at least four. 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