Sieving For Primes
(Published on 28. August 2026, 18:44 by gkammer)
Rules:
- Standard 6x6 sudoku rules apply.
- Draw non-overlapping cages around groups of orthogonally connected cells. The sum of a cage is represented by "??" on its upper leftmost cell (the leftmost of the cells in the uppermost row). Each cage has a unique number of cells and a unique sum, and each cage sum is a 2-digit prime number. Digits may repeat within a cage.
- The sum of the digits along the negative diagonal is also a prime, and is not equal to any of the cage sums.
- Cells separated by Vs sum to 5. Not all Vs are necessarily given.
Play on sudokupad here: https://sudokupad.app/wd1usnlb4x
Solution code: Second row, left to right.
Solved by varepsilon, SKORP17, Saltensity, kangaroo
Comments
on 29. August 2026, 07:37 by Saltensity
A lot of little deductions that led to the solution, very nice! :)
on 28. August 2026, 21:04 by varepsilon
Great puzzle! Especially love how the prime numbers work with the sums.
