Monads
by FullDeck and Missing a Few Cards Open on SudokuPad
Strong Indigestion
- Renban lines
- Quadruples
The brief
- Standard sudoku rules apply: The digits 1 through 9 appear in every row, column, and box. - Renban line: Usually shown as purple lines, digits along a Renban line must form a set of non-repeating consecutive digits in any order. - Quadruples: Digits in a Quadruple circle must be placed at least once in the four cells touching that circle.