Double Stacks (Sandwich sudoku)
(Published on 19. August 2025, 12:45 by Mr.Menace)
Rules
- Normal sudoku rules apply.
- Outside clues are sandwich clues and indicate the sum of the digits that appear between the digits 1 and 9 in the row or column.
Link
Have fun solving!

Solution code: 5th row
Solved by forsen, cornuto, johnreid, Karitsu, Fizz, OutOfMyMindBRB, wilsig, marcmees, tgstar, AngusWBA, fuxia, da-hans, Zibl, jalebc, Buttafingazz, welgen, severinus, scushuaishuai, Crul, Bellsita, SKORP17, ... adam001, ManuH, pepe74287, Fortunate, Ratzfaz, SirJefferE, widjo, bereolosp, phs, Nagesh, superkinkel, W1n5t0n, BlackApolloX, ch1983, Harold, Playmaker6174, Snuggles, snuuba, diziet, casquefou
Comments
on 26. October 2025, 17:42 by snuuba
Tasty, many thanks
on 23. September 2025, 12:07 by Playmaker6174
Yum yum
on 21. August 2025, 00:45 by egubachu
Excellent puzzle, I enjoyed that a lot!
on 20. August 2025, 06:40 by Peteronium
Many thanks for this lovely classic.
on 19. August 2025, 19:53 by Qodec
Refreshing to solve a puzzle again with just a single constraint. Thank you.
on 19. August 2025, 19:22 by Platinum
Nice logic flow, thx
on 19. August 2025, 15:12 by AngusWBA
Nice! Been a while since I’ve done a puzzle with just sandwich clues. Thank you.