Factor Factory
(Published on 9. April 2025, 03:32 by Kippar)
RULES:
Normal sudoku rules apply.
Most of the grid is covered in fog. Placing a correct digit in a cell removes fog from that cell and surrounding cells, revealing more information. Digits in cages sum to the clue in the top-left corner of the top leftmost cell. Cages are made up of orthogonally connected cells, and digits cannot repeat in cages. All cages must contain at least 2 digits that multiply to the cage clue. (i.e a valid 12-cage could contain the digits 345.) Digits separated by a white dot are consecutive. Digits separated by a black dot have a 2:1 ratio.
Solution code: Row 1 followed by row 2, no spaces, digits are read left to right.
Comments
on 20. April 2025, 07:24 by Lovejoy
1* guys? Seriously?!
on 9. April 2025, 22:31 by MattJones
Really lovely puzzle, although making the solution code 18 digits makes it challenging when completing the puzzle on a phone!
on 9. April 2025, 21:45 by Myfyr MJ
Enjoyed that, fog of war is my current favourite sudoku variant.
on 9. April 2025, 20:14 by RockyRoer
Yay! Product puzzles! More please!
I think this rule could be quite interesting without any given totals at all (or at least a few blank cages...)
on 9. April 2025, 19:46 by sujoyku
Very nice puzzle. I loved the factor rule. Thank you, Kippar!
on 9. April 2025, 15:09 by Kippar
changed difficulty
on 9. April 2025, 14:40 by mihel111
Very fun and nice puzzle. After the break in, the product constraint make the cages composition too obvious to earn a third star for difficulty. Two at max in my humble opinion.
Well done anyway.
on 9. April 2025, 05:26 by CitrusGremlin
Felt more like 2.5 stars but I'm much better at remembering factors of numbers off the top of my head than I am with regular killer cage logic, so this ended up being a bit easier than I expected. Still, a fun puzzle with interesting logic.
on 9. April 2025, 03:34 by Kippar
edited rules
