Sudoku: Each digit, 1-9, appears exactly once in each row, column, and 3x3 region.
Renban: Each pink line constrains a set of consecutive, non-repeating digits, in any order.
Sandwich: digits outside the grid indicate the sum of all the digits sandwiched between the 1 and 9 in the town or column.
Solution code: Row 9
today, 03:24 by deltameth
Could you please check the code? I solved but the code does not fit.