Logic Masters Deutschland e.V.

Secure the Perimeter

(Published on 2. December 2025, 21:23 by Zach52)

Secure the perimeter

This is the first ever puzzle that I tried to set. I think it's quite beginner friendly. Enjoy!

Rules:

1. Classic 6x6 sudoku rules apply: Place the digits 1-6 once in each collumn, row and 2x3 box.

2. Thermo: Digits on a thermo must increase from the bulb end.

3. Cages: Digits in a cage sum to the number on the top left corner of the cage. Digits within a cage may repeat if allowed by other rules.

Solve on SudokuPad

Puzzle:

Solution code: Row 3, read left to right.

Last changed on on 2. December 2025, 23:30

Solved by Zibl, Merovius, asynchronous, superkinkel, Pairot, fuxia, Fisherman, ole-1995a, kkli, sparkymanu, Guillem98, DuBzGaMeRz, cmigas, GorgeousNicko, soyavista, SKORP17, SennyK, OWAWAW, sujoyku, ... Wenni, Lego7656, CitrusGremlin, Lemon04, alm, ManuH, rcg, Raistlen, Thomster, Rollo, Kigor, ParaNox, RickiFerrara, JTurnquest, H.I. McDunnough, The Bard, lutzreimer, atron, ciaragst
Full list

Comments

on 3. December 2025, 01:05 by SennyK
2 minutes for me, fun little puzzle

Last changed on 2. December 2025, 23:28

on 2. December 2025, 23:25 by Zach52
Thanks to everyone for their comments. Change was made so that the cages were not set as "killer", so as to not flag repeat digits as wrong. If this still doesn't work, please let me know.

on 2. December 2025, 23:06 by sparkymanu
Nice snack, but the rules need to be fixed in sudokupad indeed
Thank you for sharing !

on 2. December 2025, 22:20 by fuxia
Cute! If you use cages in which digits can repeat, set these as "cosmetic cages" in your setting tool. The conflict checker will then ignore them.

on 2. December 2025, 21:26 by Zibl
Nice little snack, thank you!

Difficulty:1
Rating:83 %
Solved:121 times
Observed:0 times
ID:000QE2

Standard puzzle Beginners

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