Logic Masters Deutschland e.V.

Primetime 03: Just some V and X sums

(Published on 11. December 2025, 22:09 by Markus)

Rules:

1. Normal Sudoku rules apply.
2. Cells joined by a V sum to 5. Cells joined by a X sum to 10. Not all V and X sums are given.
3. Primes see the digit 1 at least once in distance of their value in orthogonal direction, if allowed by the size of the grid.

Sudokupad

Have fun!

Solution code: Row 9


Solved by StevenS, Pairot, TaeChi, gdc, SecondBlue, sparkymanu, abadx, SKORP17, Onkel_Dagobert, CitrusGremlin, maniacaljackal, DiMono, firespire
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Comments

on 26. December 2025, 14:18 by firespire
Perfect puzzle for me, a new rule that I hadn't come across and set at an easy level for me to get through. Very much enjoyed it.

on 17. December 2025, 22:13 by DiMono
I stumbled for some time because rule 3's wording made it seem like 1 must be WITHIN the distance of the prime's value, rather than exactly that far away. If I may suggest new wording for rule 3:

Each prime number is exactly its own value away from the digit 1 in at least one orthogonal direction, if allowed by the size of the grid

on 12. December 2025, 10:51 by abadx
Quite approachable once rules implications are understood. On the top half of one star

on 12. December 2025, 00:37 by SecondBlue
The prime rule is really good. Being unfamiliar with the rule made it hard to break in but was smooth after that. Thanks for the puzzle.

Difficulty:1
Rating:N/A
Solved:13 times
Observed:0 times
ID:000QIG

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