Clues outside the grid indicate the sum of the digits between the 1 and 9 in that row. Inequalities point to the smaller number.
Penpa+ (use blue or green for answer check)Solution code: Row 4, Column 3
on 11. August 2023, 14:26 by Yann
I can't describe with words how this puzzle makes me feel, it's so other-wordly that I have no idea how you set this. The fact that every option to disprove doesn't work because, for example, a sum is one off each time, is an unbeievable achievement. Setting this might have been quite the impossible task, and that's why I have to thank you, for crafting this monstrous puzzle that dazzles solvers.
on 13. April 2023, 18:52 by Giroud
Quite crazy!
on 19. December 2022, 16:51 by thunderstruck
This is mesmerizingly stunning. Took me the better part of a week to complete but loved every deduction.
on 20. June 2022, 03:15 by Piatato
Incredible puzzle! Even knowing a very significant strategy in advance, it still posed a significant challenge, and it was a huge pleasure to make every single little deduction. Thanks a lot for this puzzle!
on 13. February 2022, 17:06 by twobear
This puzzle is insane, in a wonderful way. Thank you so much!
on 12. January 2022, 16:05 by joecat
Such an extraordinary construction. Thank you.
on 16. December 2021, 10:47 by Vebby
Absolutely brilliant! Loved the unique sandwich logic involved.
Thanks Gliperal! :)
on 27. November 2021, 17:54 by Niverio
One puzzle ticked off the bucket list. Took me almost 5 hours, but I managed to get there in the end. Stupidly hard, insanely beautiful. I have no idea how Gliperal could ever construct something like this. Every single minor deduction takes enough time to solve an entire other Sudoku.
on 9. August 2021, 13:20 by Playmaker6174
Why is this one deserving 5 stars only? This should be 6 or 7 stars difficulty because oh my goodness, how can this puzzle exist...
Well so many weeks did pay off for the efforts, now I'm not even sure if I could remember a step in this one :'(
But things aside, this puzzle is just EPIC. The beauty of it is immesurable and my day is enlightened.
on 22. July 2021, 21:46 by SSG
I have never felt so uncertain of the soundness of the logical deductions I needed to make to solve a puzzle. This is an astounding construction. Absolutely masterful.
on 19. July 2021, 15:44 by Qodec
Wow. Wow. What an epic and beautiful puzzle.
on 18. April 2021, 18:05 by PixelPlucker
:')
on 16. February 2021, 12:00 by DrWraith
This took a long time! Thank you Cat for the encouragement and gentle clues! I had so much fun with this!
on 4. January 2021, 11:49 by SirWoezel
"Jeepers creepers! This is not an easy puzzle!"
on 3. January 2021, 00:02 by TotallyNormalCat
The final boss of sandwich sudokus. One of the hardest and most beautiful puzzles I've ever seen.