Sums and Products Killer Sudoku
(Published on 29. November 2020, 04:46 by PixelPlucker)
This puzzle is a variant killer sudoku, loosely based on Qodec's Product Killer and udukos' Sums or Products. This time, it's sums and products!
- Normal sudoku rules apply.
- Digits in cages may not repeat and must sum to the total indicated (or, if a range is indicated, a total within that range). Some cages may have unknown totals.
- An X between cells indicates that the two adjacent digits are multiplied when calculating the cage total.
For example, the total of the 49-cage would be calculated like this:
49 = (R7C1 x R8C1) + (R8C2 x R9C2) + R7C2 + R9C1
You can play this puzzle online using f-puzzles or Penpa+. Enjoy!
Solution code: Column 5, column 6 (18 digits without spaces)
Comments
on 1. July 2021, 02:03 by MatthewDonovan
A very challenging but nice puzzle! Loved the logic. Thanks PixelPlucker!
**Thanks for solving! Glad you enjoyed!
on 6. May 2021, 05:10 by abed hawila
What an incredible puzzle! I loved it!
**Thanks for solving, Hawila! Glad you enjoyed ^^
on 20. April 2021, 16:57 by glum_hippo
If people don't particularly like arithmetic, they should do this puzzle. It is so cool in its geometric ideas that you forget all the calculations you thought you might have to do. Splendid puzzle with an unexpected break-in and some marvelous moments along the way.
on 8. February 2021, 16:13 by Qodec
Fantastic! More of these please!
**Thanks so much! It means a lot. I've not set something in a while, but we shall see :p
on 6. February 2021, 22:45 by SudokuExplorer
Very smooth logic! Thanks :-)
**I’m glad you enjoyed it! Thanks for solving :)
on 6. February 2021, 20:09 by EliasKar
What a puzzle! Such an enjoyable solve, loved every step of it. Thanks for sharing!
on 30. January 2021, 20:48 by Philipp Huber
Haha, I can totally related to RockyRoer's comment. I was staring at this for like five to ten minutes, thinking this will be a super annoying pencil mark battle, but their comment kept me motivated. Once I focused on a strategy and quickly found the entry, it was a very smooth solve that was super enjoyable. Thank you!
on 1. December 2020, 04:16 by RockyRoer
Loved it -- i couldn't believe that it would be solvable with all the possibilities with multiplications - yet it slowly and surely came together. And that worthless >20 clue!
**Haha, that's great to hear! Glad you enjoyed, Rocky :)
on 30. November 2020, 17:51 by Mark Sweep
Very nice variant on the previous product killer sudokus. Quite smooth, good job!
**Thanks so much! Linear and medium difficulty is what I was going for. Glad you enjoyed :)
on 30. November 2020, 05:33 by Tilberg
Agreed! Nice solution path around the grid with some cool logic.
on 29. November 2020, 12:58 by udukos
This was fun. :)
**Thank you! I’m glad you enjoyed it :)
