Logic Masters Deutschland e.V.

Schrödingers Sauerkraut Sandwich

(Published on 21. February 2026, 14:21 by gdc)

This puzzle uses 2 schrödinger cells per row/column/region to allow some ridiculously long nabner lines and a spin on sandwich sudoku. Thanks ChinStrap, lmdemasi and KMD for testing. Hope you enjoy!

Irregular 0-9 8x8 Schrödinger Sudoku: Place one or two digits from 0-9 in every empty cell such that every row, column and region contains each digit exactly once. Cells with two digits are called S-cells.
Schrödinger Sandwich: A number outside the grid is the sum of the digits between the S-cells in that row/column.
Nabner: A value on a sauerkraut colored nabner line must differ by 2 or more from every other value on that line. S-cells use the sum of their digits as values.
Rules
Click on the image to play!

Solution code: Digits in the bottom row (row 8) from left to right. Ignoring S-cells (6 digits).

Last changed on on 21. February 2026, 16:14

Solved by ChinStrap, lmdemasi, eladv, marcmees, zuzanina, cornish-john, SirWoezel, bansalsaab, palpot, fajoogaloo, totem_mapr, flip1995, Snookerfan, Paletron, SPring, Joyofrandomness, vorash00, widjo, Isael, Kozi, Clara123, smckinley, AKernel, pmatos, Neumino, SZCrow, swnlmd, Crusader175, MSDOS, skuntsel, lfm, Tompzini, LehanLehan
Full list

Comments

yesterday, 20:24 by LehanLehan
Delightful. And even abstract part was delicious. Top class.

on 25. February 2026, 12:50 by skuntsel
Fantastic puzzle all around with ambiguity until the very end. Thanks, gdc!

on 22. February 2026, 11:06 by Snookerfan
Brilliant puzzle! A great exercise in retracing steps because of mistakes. Thanks

on 21. February 2026, 14:38 by ChinStrap
Loved this. Very clear what questions to ask but the answers are still interesting the whole way through.

Difficulty:4
Rating:98 %
Solved:33 times
Observed:0 times
ID:000RJM

Puzzle variant Online solving tool

Enter solution

Solution code:

Login