Periscope
by FullDeck and Missing a Few Cards Open on SudokuPad
Strong Indigestion
- Kropki dots
- Renban lines
- Kropki ratio
The brief
- Normal sudoku rules apply. - Renban lines: Digits along purple Renban lines must form a set of non-repeating consecutive digits in any order. - Ratio pairs: Digits in cells separated by a black dot are in a 2:1 ratio. Not all dots are necessarily given.