Logic Masters Deutschland e.V.

Co-Prime Killers

(Published on 29. May 2026, 23:19 by Reaperskill)

I promise not every puzzle I make will consist of a grid entirely filled by killer cages none of which state what their total is. But also, while this is my second it's definitely not my last

Rules

1] Normal 8x8 Sudoku rules apply.

2] No two orthogonally adjacent digits may share a divisor. [e.g. A 6 may not be next to a 4 because they are both divisible by 2, and it may not be next to a 3 because they are both divisible by 3.]

3] The cages, which entirely cover the grid, are "killer cages" for which the totals must be determined. Digits may not repeat within a killer cage, and its value is equal to the sum of the digits within.

4] No two orthogonally adjacent Killer Cages may share a divisor. [e.g. A cage summing to 28 may not share an edge with a cage summing to any other even number, nor to a cage summing to 7 or 21]

Click on the image to play

Solution code: The eight digits of the bottom row, left to right


Solved by TheCutmaster, Fisherman, Bubbalubba, Yawnus, crosslegged, SKORP17
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Comments

Last changed on 30. May 2026, 17:49

on 30. May 2026, 17:48 by Reaperskill
I'll certainly consider doing an easier version with a few extra clues - I think I just get carried away with the clean aesthetic on ones like this. Does 4 stars feel like the right difficulty or should I have put this one at 5? I know that the player rating kicks in when it gets to 10 completions, but not sure this one is going to get there.

on 30. May 2026, 04:43 by Fisherman
Very tough and beautiful. More at the hidden section.

Difficulty:4
Rating:N/A
Solved:6 times
Observed:1 times
ID:000T2C

Variant combination New Online solving tool Small

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