Easy Peasy Sudoku Advent (08) - Sum Triplets
(Published on 8. December 2025, 06:00 by Richard)
This sudoku advent calendar contains 24 variants that were included in my Sudoku Variants Series (SVS) but turned out to be too hard to be solved by a wide range of puzzlers. I aim for difficulties of 1-2 stars and have written some general and/or specific hints as well. I hope some players will try the original SVS puzzle #310 after solving the advent version.
Sum Triplets
Specific hint for this puzzle:
The positions of the sums of 24 and 6 can be determined straight away.
Apply classic sudoku rules.
Clues outside the grid indicate the sum of the triplet (three connected cells in a straight line) in one of the three 3x3 blocks in the corresponding row or column.
Interesting fact: If the 11 of R7 is placed in the left block, the sum of R9C123 is 10 and there is no place left for a sum of 9 in R9.
Solution code: Column 9
Comments
on 9. December 2025, 16:46 by damo_89
Easy peasy but still interesting.. nice
on 9. December 2025, 05:13 by Richard
Fixed minor grammar mistake and added the SVS-number to the link.
on 9. December 2025, 03:45 by Sudonym
So sorry...didnt think, was just trying to help the person with the problem. Have deleted the comment.
on 9. December 2025, 00:14 by dzamie
That was pretty neat! I had a false start where I misread the rules as the triplet being able to show up *anywhere* in the row/column, rather than just in line with the boxes. That would've been much, much harder!
on 8. December 2025, 18:30 by Mozart40
Funny constrain. Thx for sharing.
@Sudonym: Please, don't spoil any solutions or post them at least as a hidden answer.
on 8. December 2025, 17:46 by Klausku
That was nice. I especially like the disambiguation at the finish. Thanks.
on 8. December 2025, 15:47 by Sudonym
Nice puzzle. Enjoyed that. Thanks for posting.
on 8. December 2025, 12:50 by Franjo
Thank you very much for creating and sharing another lovely appetizer.
on 8. December 2025, 12:02 by wuc
Nice flowing puzzle thx.
