Logic Masters Deutschland e.V.

Whispering Lean Sandwich

(Published on 27. December 2025, 13:12 by NurglesGift)

Normal sudoku rules apply.

Adjacent digits along green lines must differ by 5 or more.

Sandwich: Numbers outside the grid indicate the sum of the digits located between the 1 and 9 in that row or column.

Leaning Sandwich: Arrows with a number outside the grid indicate the sum of the digits located between the 1 and 9 on the indicated diagonal, There can be only one [1] and one [9] on a indicated diagonal.

All possible leaning Sandwich clues are given.

To clarify, all numbers outside the grid are both standard sandwich and leaning sandwich clues

Link to sudokupad

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Feel free to recommend this puzzle to anyone.

Feel free to take special rules for your own puzzle.

Feel free to give feedback.

Bless you!

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Example


All possible leaning Sandwich diagonals are given on the grid below.

Solution code: give the digits of column 9 (top to bottom)


Solved by jalebc, Fizz, weiken, RedBulls75, sedici, SKORP17, snuuba, sigge, TaeChi, DanishDynamite, redgecko, WarriorKitten, EFlatMinor, farodin64, S4K, pepe74287, scushuaishuai, Mutiny, Crul, Franjo, Nagesh, ... Elizy, QuiltyAsCharged, drbs, Stockworth, Llamaths, bboom, Tompzini, allama, doomedmageknight, elloschmello, miaucat_, MontanaPearl, renegade_duck, JVA, timww572, Photyne, ManniMensen, steveire
Full list

Comments

on 29. December 2025, 10:42 by zrbakhtiar
At first, I was very confused on the definition of negative constraint on leaning Sandwich. After solving full grid, I get what it meant. Great puzzle, thank you for sharing with us.

on 28. December 2025, 19:00 by Exigus
Excellent show of learning sandwiches. Thanks!

on 28. December 2025, 16:48 by Franjo
Very good sandwich! Thank you for creating and sharing this lovely puzzle.

on 27. December 2025, 20:45 by snuuba
Beautiful puzzle, many thanks

Difficulty:2
Rating:93 %
Solved:52 times
Observed:0 times
ID:000QPY

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