Rules:
Fill in the puzzle such that every row, column and nonet (3x3 box) contains all the digits from 1 to 9.
The renban groups, framed with a plain thick line, must hold consecutive numbers, in any order. Numbers may not be repeated within a renban group.
eg a renban group of 3 cells may contain {456}, {645}, {123}, {789}… But {124} is not valid since numbers are not consecutive.
The numbers in sum cages, framed with a dashed line, must add up to the sum at the top left. Numbers may not be repeated within a cage.
Cells belong to either a renban group or a sum cage, not both.
