Solve it Wrong to Get it Right
(Published on 25. February 2025, 07:16 by mellowrobinson)
Note: you'll need to remember the incorrect digit in R9C9 for the solution code.
Sudoku, Killer, Arrows, German Whisper, Kropki, XV, all these clues are standard:
Normal Sudoku rules apply.
Killer: Digits in a cage do not repeat, and sum to the total in the top left corner.
Arrows: Digits along an arrow sum to the digit in the attached circle.
XV: Digits separated by an X sum to 10.
Kropki: Digits separated by a white dot are consecutive.
German Whispers: Adjacent digits on a green line have a difference of at least 5.
Solution code: Row 9, left to right, then R9C9 from the incorrect grid. (10 digits)
Comments
on 28. February 2025, 21:05 by dzamie
Oh that's so cool! Excellent use of dynamic fog!
It kinda felt like a 2* initially, plus a nice 1* "reward" puzzle once you placed the correct number on blue. Very neat.
on 27. February 2025, 16:31 by saturnic
nice!
on 26. February 2025, 17:03 by mellowrobinson
Clarified rules
on 26. February 2025, 16:22 by itsid
Love the idea... the ruleset wasn't too clear for me obviously; since I left the red and the revealed "to be blue" in the grid... THAT was a mistake and that annoyed me suuuper hard, since it only bit me very late, and solving that sudoku a third time wasn't on my "oh that'd be fun" list weirdly enough.
Aaaanywho... stopped the clock, went to grab a coffee and filled in the options (to not have this unfinished, not because I enjoyed it any longer)
Don't get me wrong, not your fault at all; but a tiny hint that one has to clear the entire grid before starting over would have saved me (and actually enjoy that puzzle a lot more in the end)
-- shoot, sorry about that. I'll put it in the rules now for future solvers. Thanks.
~mellow
on 26. February 2025, 14:55 by kublai
Great use of fog! Thanks for setting this puzzle.
on 26. February 2025, 11:19 by Playmaker6174
Definitely 3 stars diff for me, but quite a fun journey throughout! A cool and clever setting there, well done!
on 26. February 2025, 10:24 by wilsig
What an idea!
on 26. February 2025, 08:30 by BorisTheSnake
Difficulty level seems appropriate. Amazing construction - bravo!
on 26. February 2025, 03:33 by alzika
I found this puzzle quite enjoyable but also quite difficult. Told me a little over 40 minutes. Solving the first half of the puzzle took the majority of my time. The second solve seemed much much smoother.
Overall though, I really enjoyed this!
on 25. February 2025, 21:36 by VitP
the second puzzle qualifies as level 2, but the first puzzle, with several critical clues hidden, is (obviously) much harder
on 25. February 2025, 19:48 by hardline35
How do you even come up with these ideas! Very nice puzzle. Thank you!
on 25. February 2025, 17:06 by OGRussHood
Clever!
on 25. February 2025, 12:33 by GT-R Penguin
Loved this, two puzzles in one! Thank you
on 25. February 2025, 11:56 by biobas69
Loved it, great solve.
on 25. February 2025, 08:48 by mellowrobinson
typo
on 25. February 2025, 07:57 by mellowrobinson
changed difficulty
