Zip-Pea
The brief
- Normal sudoku rules apply, i.e. each row, column and 3x3 region has to contain the digits from 1 to 9 once each.
- Split pill arrows/Pea lines: The sum of the digits on a line strictly between two circles is equal to a concatenation of the two values in the circles, in some order. For instance, 3_346_1 could be a valid split pea line, as 3+4+6=13, which is 1 concatenated with 3.
- Zipper lines: Cells on a lavender line at an equal distance to the center, which is marked with a dot, sum to the digit at the center. (Note: The circles of pea lines are NOT part of the zipper lines.)