Tree Of Dominos
- Kropki dots
- XV and number dots
- Renban lines
The brief
Normal sudoku rules apply.
Digits separated by a white dot must differ by the indicated number. Digits separated by a black dot must be in a 1:2 ratio. The digit in the big circle must be equal to the sum of the digit directly above and the digit directly below it. Digits along a purple line are a set of consecutive, non-repeating digits in any order.
The blue network forms a tree of dominos. Every line piece on the tree joining two cells must contain a unique domino, read from left to right or top to bottom. Note that dominos may overlap and that ab and ba are two unique dominos.