Fortified Rooms
(Published on 4. July 2026, 01:00 by yttrio)
Rules:
Normal Sudoku rules apply.
Numbered Rooms: Clues outside the grid indicate the digit which has to be placed in the Nth cell in the corresponding direction, where N is the digit placed in the first cell in that direction.
Fortress (maximum cells): Cells indexed by a numbered rooms clue must be larger than all orthogonal neighbors of the cell that are not indexed by a numbered rooms clue. For example, if r1c4 was a 3, then r3c4 would be a fortress cell (that contains the digit 5).
Solution code: Row 7
Comments
on 8. July 2026, 18:38 by phs
Great original idea, well used. Thanks for sharing!
on 4. July 2026, 23:48 by Snaques
I do think the logic required makes this a 2*, but it must've been the fastest 2* I've ever solved.
Anyway, very interesting logic and quite satisfying solve. Thanks for setting it up.
on 4. July 2026, 14:21 by pmays123
Perfection. Thank you :D
on 4. July 2026, 13:51 by Snookerfan
Really fun easy puzzle that required some thinking before starting. Excellent setting, thanks!
on 4. July 2026, 13:02 by Franjo
Thank you very much for creating and sharing another lovely puzzle. Luckily I got the right ideas at once and found the nice break-in for the smooth solving path.
on 4. July 2026, 10:01 by damo_89
Gorgeous!
on 4. July 2026, 07:27 by Crusader175
Cool idea!
on 4. July 2026, 07:15 by Piatato
Fun puzzle, thanks!
on 4. July 2026, 03:51 by Elliott810
Beautiful puzzle! Thank you:)
