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, ... brimmy, olliwright, zrbakhtiar, Franjo, hige, Deivi55, Crul, HerrEks, MaxSmartable, Kirra, redovermars, lerrry, nyxie, NotSoMagnifique, ChavaB11, Photyne, ManniMensen, Scojo, aqjhs, Donatello_86
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.