Sum Good Drainage
(Published on 20. September 2026, 15:32 by morrisjb)
- Normal sudoku rules apply: Place the digits 1 through 9, such that every digit appears exactly once in each row, column, and box.
- Sandwich Sums: Values outside the grid indicate the sum of the digits that appear between the 1 and the 9 in that row or column.
- Region sum lines: Blue lines are divided into segments by box borders. Each segment of a line has the same sum. Different lines may have different segment sums.
- Killer cages: Digits may not repeat in a given cage and sum to the given value in the top left corner.
- Kropki: Digits separated by a black dot have a 1 to 2 ratio. Digits separated by a white dot are sequential. Not all dots are given.
Sudokupad Link:
https://sudokupad.app/pduwi6c24j
Solution code: Column 6 from top to bottom
Solved by sanabas, idanz, jalebc, chrisj50, SKORP17, PippoForte, by81996672, Darra, Carolin, Bjd, Piff, marcmees, cip11, fergus, mihel111, doomedmageknight, kangaroo, joelth, Shmartus, mathhead, Julianl, Pride, lune, tuckerbucket, Tompzini, mezkur7, TheCutmaster, kolb_elias, damo_89, th3d1c3m4n
Comments
Last changed on 21. September 2026, 15:40
on 21. September 2026, 08:10 by Darra
This was a really enjoyable puzzle. Kept me thinking with a continuous flow throughout. Thank you so much for setting these awesome puzzles
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Thank you for the kind words. I am glad you found it enjoyable!
Morrisjb
