Extenban 159
- Renban lines
The brief
Normal sudoku rules apply:
159: Digits in column 1 indicate the column in which the digit 1 appears in that row (e.g. if r4c1 is a 6, r4c6 is a 1). The same applies to columns 5 and 9, with the digits 5 and 9 respectively.
Extended Renbans: Digits along a pink line form a consecutive group in any order. Digits do not repeat on the line EXCEPT for the ends, which are the SAME digit.
For example, possible fills for a line of length 5 might be 64756, 25342, 34123, etc.