YYSL Renban
- Shading
- Renban lines
The brief
Normal sudoku rules apply.
Shade cells using two colours such that each colour forms an orthogonally connected region, and no 2x2 area is a single colour.
Digits in caged cells indicate how many cells of the same colour are seen orthogonally from that position, including itself. The other colour blocks vision.
Digits on pink lines form a non-repeating consecutive sequence in any order. Additionally, cells along pink lines alternate between the two colours.