Obscured Catapults
Rules:
Normal Sudoku rules apply.
The grid is covered in fog.
Placing correct digits will reveal surrounding cells.
Guessing is not allowed.
A catapult comprises of a circular bucket attached to a T-shaped fulcrum.
A bucketed digit X gets flung over the fulcrum and lands Y distance away from the bucket, where Y is the digit on the fulcrum.
No other instance of X appears between the landing cell and the bucket.
E.g. if R8C7 = 3 and R9C6 = 1, then R6C9 = 1 and R7C8 =/= 1.
Clarification: Digits cannot be catapulted out of the grid.
Try it on Sudokupad.
Puzzle:
Click here to try the following example puzzle.
Solution code: Column 3 (top to bottom); 9 digits and no spaces
on 8. October 2025, 05:51 by NorthCoastAsher
Very unique and enjoyable constraint, without being too simple!
on 4. October 2025, 00:16 by bleppie
Nice idea and great puzzle. I found the middle quite tricky. Thanks!
on 23. September 2025, 17:53 by MartinR
The ruleset also reminded me of slingshot, just with the orientation of the clues being diagonal instead.
However this turned out to be a slight disadvantage as while slingshot rules count from the end of their arrow, here the catapult starts from the catapult itself, so I had to keep myself from being off by one a few times :)
on 22. September 2025, 16:17 by Franjo
The new index rules reminded me of slingshot. Tricky puzzle! Thank you very much for creating and sharing.
on 21. September 2025, 22:50 by Treme
My poor brain struggled but I got there, thank you!
on 21. September 2025, 21:32 by Exigus
Tricky but very cool. Thanks!
on 21. September 2025, 19:09 by 99%Sneaky
Fun idea with interesting consequences :)
on 21. September 2025, 10:33 by zeniko
Interesting ruleset, elegant and still quite tricky. Thanks for sharing.
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