Uncertain Sudoku #8 - Frame or X-Sums
(Published on 27. March 2020, 17:00 by Feadoor)
Uncertainty
I have prepared a set of 10 puzzles following the common theme of "Uncertainty". I am releasing the puzzles here on a daily basis, but if you are impatient, the full set can be found at this link. Each puzzle is a combination of two variants, but it is unknown in which parts of the grid each variant applies - that is to be determined during solving.
General Rules: Place a digit from 1-9 into each cell of the grid so that every row, column and outlined 3x3 region contains each digit exactly once.
Frame: Clues outside the grid give the sum of the first three digits in the corresponding direction.
X-Sums: Clues outside the grid give the sum of the first X digits in the corresponding direction, where X is the first of those digits.
Combination Rule: In this puzzle, each clue follows either Frame Sudoku rules, or X-Sums Sudoku rules, or both.
Solution code: Row 4, followed by Column 4
Comments
on 30. March 2020, 01:03 by Ragna
Wow! 3 Anläufe... :-))
on 28. March 2020, 07:44 by cdwg2000
Amazing！
on 28. March 2020, 01:01 by Nylimb
Truly amazing!
on 27. March 2020, 22:08 by SirWoezel
Fantastic puzzle!
on 27. March 2020, 20:29 by bob
I found this one really hard, but I am really impressed at a unique solution with such a narrow range of clues and symmetry.
