Rules:
Normal Sudoku rules apply.
Clues outside the grid give the sum of the digits sandwiched between the 1 and the 9 in the respective row/column.
Additionally, the filling of a sandwich behaves like an X-sum: the first digit inside the sandwich from the side of the clue equals the number of digits inside the sandwich (between the 1 and the 9). A question mark indicates an unknown sum, but the first digit inside the sandwich from the side of the clue still equals the number of digits inside the sandwich.
Try the puzzle online on f-puzzles.
Ratings and comments are highly appreciated.
Lösungscode: row 3, row 7
am 4. Juni 2023, 09:37 Uhr von Saskia
Nice :)
am 15. Juni 2022, 18:12 Uhr von panthchesh
That was fun. Thank you! :)
am 29. Juli 2021, 18:07 Uhr von Lizzy01
Thanks!
am 29. Juli 2021, 00:26 Uhr von SudokuExplorer
I particularly liked the logic to determine the first few crusts, thanks! :-)
am 28. Juli 2021, 23:43 Uhr von RockyRoer
OH!! Missed that the first time... The location of the clue provides the location of the first digit inside the sandwich filling x-sum! I'm gonna have to give this one another go now....
am 25. Juli 2021, 18:14 Uhr von Lizzy01
Added tags
am 2. Juli 2021, 10:15 Uhr von wilsig
Excellent puzzle!!
-Thank you!