Normal Sudoku rules apply.
Clues outside the grid are both numbered rooms and sandwich clues.
Sandwich: The clue gives the sum of all digits positioned between 1 and 9 in the given row or column.
Numbered rooms: The clue indicates that the given digit is in the Xth position in the row/column seen from that standpoint, where X is the first seen digit.
Note: the NR logic and the sandwich logic are tightly intertwined; it shouldn't be necessary to undertake deep bifurcation.
F-puzzles version.
CtC version.
Solution code: Row 5, then row 9, from left to right. (18 digits)
on 20. May 2022, 17:02 by glum_hippo
Herzlichen Dank, Mody, fürs Lösen und für den Kommentar!
on 20. May 2022, 17:00 by Mody
Das Zusammenspiel der Hinweise war klasse.
on 9. May 2022, 22:39 by glum_hippo
Glad you enjoyed, Qodec
on 9. May 2022, 21:34 by Qodec
Brilliant. I really enjoyed that!
on 9. May 2022, 16:49 by glum_hippo
Thanks, harris, for your comment!
on 9. May 2022, 15:51 by harrismirza
Loved this puzzle! Great interaction between the numbered rooms and the sandwich clues