Logic Masters Deutschland e.V.

I Like My Sandwiches Sliced in Two

(Published on 9. January 2026, 00:00 by NXTMaster)

I do not usually set puzzles with vanilla constraints because my biggest fear is setting a puzzle too similar to someone else's; however, a long time ago I set this Sandwich Sudoku. When setting this puzzle, I only had a single digit in mind, so if you want the extra challenge, here is a link to the original puzzle without the extra given: SudokuPad.

The rules are as follows:
  • Place the digits 1-9 once in every row, column, and region.
  • Sandwich Sums: Numbers outside the grid indicate the sum of the digits between the 1 and the 9 in their corresponding rows or columns.


The puzzle is available on SudokuPad. Have fun eating!

Solution code: The diagonal from top left to bottom right

Last changed on -

Solved by Greg, SirWoezel, Qodec, gdc, SKORP17, Shearing, cornish-john, DanishDynamite, Aaravos, Karitsu, StevenS, rysmyth240, doomedmageknight, Dermerlin, ScatterBrain, MeanoPenquino, Chefofdeath, cmigas, ... Peteronium, Crul, teuthida, jkl, Nagesh, walid_tun, edwardio0, Leoninus, lancer102rus, RockyRoer, Phandor, balpha, trashghost, Janie, Bconner5, Tompzini, Joyofrandomness, doeremi123, Photyne
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Comments

on 9. January 2026, 14:32 by philolologue
Solid half hour for me, still getting the hang of sandwich puzzles, and this was great practice! Thanks!

on 9. January 2026, 12:20 by Franjo
Thank you for creating and serving this nice snack.

on 9. January 2026, 10:23 by faltenin
Very nice

on 9. January 2026, 01:14 by Shearing
Great puzzle! Was a joy to solve.

Difficulty:2
Rating:92 %
Solved:77 times
Observed:0 times
ID:000QSP

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