Whisrenperban
- Kropki dots
- Whisper lines
- Renban lines
The brief
Normal 7x7 irregular sudoku rules apply. Place the digits 1-7 once each in every row column and region. Digits along a purple renban line without repeat must form a set of consecutive digits in any order. Adjacent digits along a green line must differ by at least 4. Cells separated by a black dot has one digit double the other (1:2 ratio) Cells separated by a white dot must be consecutive. Not all dots are necessarily given.