Easy Peasy Sudoku Advent (10) - Product Ltd
(Published on 10. 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 #290 after solving the advent version.
Product Ltd
General hint for this type:
Only digits larger than 3 can be part of a multiplication, so the absolute maximum of multiplications in a row or column is 5. In that case, all 6 possible digits are used in multiplications.
Apply classic sudoku rules.
Clues outside the grid indicate how many times the product of digits in two adjacent cells in the respective row or column exceeds 31.
The 8 and 9 can only have a neighbour of maximum 3 to avoid having a product higher than 31.
Solution code: Column 7
Comments
on 10. December 2025, 20:18 by dzamie
This was pretty tricky! I'm a little apprehensive to give the harder version a try, but it is a fun rule.
Though, if I do, I'm glad I checked the hint after solving this one.
on 10. December 2025, 18:30 by HeyItsErin
Managed this one without the hints and found myself really liking the deductions I had to make. Had a lot of fun with this one!
on 10. December 2025, 14:55 by ordnanceordinance
Found this closer to 3 stars. Had to take a break and come back with fresh eyes. I don't look at the hints though so that's probably why. With familiarity with the rules I could see two stars. Very fun and inventive!
on 10. December 2025, 11:04 by faltenin
I really appreciate the general hints, since these are new variants to me. Thanks!
on 10. December 2025, 08:21 by zeniko
Thanks a lot for sharing these daily advent puzzles! So far, they‘ve all been quite approachable and pleasant to solve and included some fresh variants. Looking forward to the rest of the series.
