Japanese Sums and Cage Sums
(Published on 19. July 2026, 14:34 by Rätselmann)
The usual Japanese Sums rules apply here, using the digits 1 to 9. For anyone unfamiliar with them, the complete rules are given below:
Enter digits from 1 to 9 into some cells and shade the remaining cells. No digit may be repeated in any row or column.
The clues around the grid give the sums of consecutive blocks of digits in the correct order. Blocks are separated by at least one shaded cell; their lengths are unknown.
A question mark (?) represents an unknown single-digit sum, while ?? represents an unknown two-digit sum.
Dashed cages: The small number gives the sum of all digits in the cage. Shaded cells may occur within cages and count as 0. No digit may be repeated within a cage.
Solution code: Enter the complete top two rows from left to right without spaces, using 0 for shaded cells, for example: 12305006800029.
Comments
on 20. July 2026, 12:19 by Franjo
Thank you very much for creating and sharing this nice puzzle.
Very welcome, my pleasure...a few more to come :)
on 20. July 2026, 04:15 by pmays123
This was my first Japanese Sum puzzle, and it was very fun! Each deduction was very rewarding to uncover. Excellent work. Thanks for sharing!
on 20. July 2026, 00:18 by uvo
Nope, answer check isn't working.
on 19. July 2026, 15:08 by Piatato
Answer check in penpa seems to not work, btw.
It is working but you need to fill in all the black cells as well (via clicking Surface and BK4)
on 19. July 2026, 15:08 by Piatato
Fun, thanks!
