Normal irregular sudoku rules apply. (Place every number from 1 to 9 in all rows, columns and 9-cell regions.)
In addition, normal killer sudoku rules apply. [The number in the corner of a cage is the sum of all the digits inside its cage, and digits cannot repeat within a cage.]
Finally, the "rings" in the grid [similar to killer cages but more rounded and does not have a number for a sum, and it always contain two digits] contain the only instances in the entire grid where two adjacent cells have consecutive digit values.
Alternative Name: The Roundabout Sudoku
Lösungscode: Column 8 (top to bottom), then Row 6 (left to right), no characters in between; Example: 12356789123654789
Gelöst von Rotstein, NikolaZ, zorant, Richard, s4rify, sloffie, Joe Average, geronimo92, Zzzyxas
am 7. August 2020, 03:02 Uhr von geronimo92
Really more than 2 stars I swear !!
am 17. Juli 2020, 15:06 Uhr von glum_hippo
There is now a penpa version: https://is.gd/LBbSeY I used colors to indicate the consecutives. Feel free to link to it in your instructions!
am 17. Juli 2020, 12:38 Uhr von Rotstein
Harder than I expected, but very nice