Logic Masters Deutschland e.V.

Swappy Cats

(Published on 20. September 2026, 07:34 by Andrewsarchus)



About:

      This puzzle was created for Scojo's 3rd annual Secret Impostor event.
      This was the real Andrewsarchus puzzle.

      I successfully defended my identity against my imposter, yttrio,
      who set this excellent puzzle: Curiosity


      After the event, I removed one line which was not needed for the solve.
      original puzzle



Rules:

  • Normal Sudoku rules apply.

  • Swappy Cats:
    One cell in each row, column, and box is a Swappy Cat cell.
    A Swappy Cat cells swaps its value with the cell rotationally opposite from it in the grid.
These two cells cannot have the same digit.
    The Swappy Cat cell's value is the digit in the rotationally opposite cell, and the value of the rotationally opposite cell is the digit in the Swappy Cat cell.
    DIGITs cannot repeat within the nine Swappy Cat cells, but VALUEs may.

  • Circles:
    Circled VALUEs count the number of Swappy Cat cells in the up to eight surrounding cells. All possible Circles are given.

  • Region Sum Lines:
    Box borders divide region sum lines into segments with equal sums of VALUEs. Segments on different lines may have different sums.

Play Online:

     sudokupad: Swappy Cats

Solution code: The digit in the Swappy Cat cell for each row from top to bottom.


Solved by NEWS, Sotehr, nocturnomath, earthpuzzles, aqjhs, widjo
Full list

Comments

on 21. September 2026, 00:00 by earthpuzzles
I appreciate that it is part of the puzzle to figure out which are the “real” swappycat cells. At first I thought the rules were broken, and then I thought just a little bit harder.

Difficulty:4
Rating:N/A
Solved:6 times
Observed:2 times
ID:000V0V

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Solution code:

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