Logic Masters Deutschland e.V.

Dorlir’s Mirror

(Published on 12. February 2026, 02:06 by antiknight)

This puzzle is inspired by the invention of the Greatest Line by Dorlir, which you can find here. It uses his line while also making each line a palindrome, which I believe creates some nice interactions. I hope you enjoy the puzzle. Feel free to leave a comment if you did!

Rules:
  • Sudoku: Normal Sudoku rules apply.
  • Greatest Line: On each olive line, exactly one cell has a value greater than the sum of any other two cells on that line.
  • Palindrome: Each olive line is a palindrome, meaning the digits on the line read the same forwards and backwards.
  • Arrows: The digits along each arrow must sum to the digit in the circled cell. Digits may repeat along an arrow if permitted by other rules.

Click the image to play in SudokuPad!

Enjoy!

Solution code: Row 8

Last changed on on 12. February 2026, 11:08

Solved by strangelyinsane, Silverscree, Elliott810, zeniko, Krisonium, SeveNateNine, totem_mapr, Piff, Fool on Hill, Vodakhan , keesh, ketchup_monster, gdc, Bjd, trashghost, thoughtbyte, Altynbek , SKORP17, baku, longhorned, mse326, tangobunni, n87, ArtsiBurger, brimmy, idanz, GeorgeTheToad2, Franjo, pep9, DomDaBomb, yeezy_jeezy, Onyx, swnlmd, jordanza, Debba, protheph, Stargazing Albatross, Fw1728
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Comments

on 13. February 2026, 14:31 by pep9
Such a nice puzzle, thank you for sharing!

Last changed on 12. February 2026, 11:09

on 12. February 2026, 11:05 by zeniko
Nice geometric use of Dorlir‘s lines. Thanks for sharing.

BTW.: The German translation of the rules is missing the arrows (Pfeil) constraint and refers to row (Zeile) instead of line (Linie).

-Thanks for the comment and fixed now!

on 12. February 2026, 09:23 by Krisonium
Semi coloring/labeling needed but overall the deduction was very satisfying. Thank you for the lovely puzzle!

on 12. February 2026, 07:41 by Elliott810
Beautiful puzzle! Thank you:)

Last changed on 12. February 2026, 02:08

on 12. February 2026, 02:07 by antiknight
If you would like an easier and earlier version of the puzzle, you can try it here:

https://sudokupad.app/453te6a28f

Difficulty:3
Rating:92 %
Solved:38 times
Observed:0 times
ID:000RFO

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