Logic Masters Deutschland e.V.

Index Fortress

(Published on 15. January 2026, 17:57 by Sotehr)


PUZZLE



Play [Index Fortress] on SudokuPad.


RULES

Sudoku: Normal Sudoku rules apply; place the digits 1-9 once in every row, column, and 3x3 box.

Index Line: On a blue line, the digit in the Nth cell along the line (starting from the diamond) indicates the position on the line where the digit N appears.

Fortress (Min/Max): A cell with arrows facing inward or outward is respectively less than or greater than all of its orthogonal cells.

NOTES
Expected Difficulty: 1.5 stars


Solution code: Box 2, normal reading order.


Solved by ChinStrap, Zibl, chinesemaster, gdc, Fizz, cornish-john, Marshal on Mars, Mattisahuman, Neumino, PinkNickels, dzamie, cmigas, SKORP17, nunc, OWAWAW, ThePedallingPianist, GorgeousNicko, thomamas, ... Deivi55, Crul, HerrEks, MaxSmartable, Kirra, redovermars, lerrry, nyxie, NotSoMagnifique, ChavaB11, Photyne, ManniMensen, Scojo, aqjhs, Donatello_86 , abadx, CSStead, fuxia, paranoid, Uhu, Jen118266
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Comments

on 19. January 2026, 23:26 by NotSoMagnifique
I had a few false starts, but those were my own errors - lovely work!

on 15. January 2026, 20:21 by PinkNickels
I lean toward a solid 2*. Regardless, really nice puzzle. very fun solve.

Difficulty:2
Rating:91 %
Solved:54 times
Observed:3 times
ID:000R0D

Puzzle variant New

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Solution code:

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