Logic Masters Deutschland e.V.

Friendly Fortresses

(Published on 26. January 2026, 19:30 by Phantou)

Normal sudoku rules apply.
Digits on the marked diagonal do not repeat.
Digits on fortress cells are greater than all their orthogonal neighbors.
Digits in a cage sum to the indicated number.
Digits separated by a red dot have a difference of 2.

Also, all digits in the grid need a friend, i.e at least one orthogonally connected consecutive digit.

Sudokupad : Click here

Solution code: All digits in row 3, from left to right (for example 1234546789)

Last changed on -

Solved by Qodec, Onyx, Piff, miranda_9, SKORP17, superkinkel, Chaka, Soya
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Comments

on 27. January 2026, 20:40 by Phantou
Thanks for testing ! Glad you enjoyed it :)

on 27. January 2026, 06:51 by superkinkel
Incredible ruleset. Thanks!

on 26. January 2026, 20:33 by Qodec
An absolute blast. Thanks!

Difficulty:3
Rating:N/A
Solved:8 times
Observed:1 times
ID:000R5T

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