Logic Masters Deutschland e.V.

The Maltese Zipper

(Published on 31. December 2023, 16:06 by Oddlyeven)

Rules: Normal Sudoku rules apply. Put the digits 1 to 9 once each in each row, column and box.
Region Sum Lines: The sum of the digits on a blue line within a box must be the same for each box that line passes through.
Zipper Lines: Digits an equal distance from the centre (marked by a circle) of a lavender line sum to the digit in the middle of that line.
Diagonal: Digits do not repeat along the marked (positive) diagonal.

Links:
SudokuPad: https://sudokupad.app/vz9epio68r

Solution code: Row 5, left to right, then column 5, top to bottom (18 digits)


Solved by jalebc, bansalsaab, Playmaker6174, SKORP17, Bjd, Starlight, tuturitu, femto113, AvonD, Krisonium, Pardalote, gdc, tangobunni, Bankey, tuckerbucket, rameshsrivats, Taikatalvy, Zipperoni, Dentones, ... antiknight, mutex, willdabeast29, Hazem-77, ghosting, rasmussaame, Chilimy, littlebluue, zonka, by81996672, vorash00, A Mehdi, QuiltyAsCharged, steelwool, laky, ZornsLemon, joelth, PippoForte
Full list

Comments

on 10. March 2024, 14:05 by QuiltyAsCharged
Fantastic geometry and symmetry. Very enjoyable and smooth solving. Thanks!

on 1. January 2024, 20:09 by antiknight
Cool deductions at the mid and end of the puzzle !

on 1. January 2024, 06:49 by Bankey
Fun puzzle. Thanks, @ Oddlyeven :).

on 1. January 2024, 03:22 by Pardalote
Took a few minutes to work out how to start, but then it was a joy to continue the logic to the end.

on 1. January 2024, 01:49 by femto113
Taxed my pencil marking skills to their limit but felt like a real accomplishment in the end.

on 31. December 2023, 18:52 by Playmaker6174
Some neat deductions in this one along with some surprises in the middle, thanks for the cool puzzle!

Difficulty:4
Rating:95 %
Solved:41 times
Observed:7 times
ID:000GDS

Variant combination Online solving tool

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Solution code:

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