An Easter Miracle
(Published on 9. April 2023, 01:06 by Farkov)
Rules:
Normal sudoku rules apply.
Mark nine cells such that there is one marked cell in each row, column and 3x3 box.
The digit in the first cell of a row, column, or 3x3 box gives the position of the marked cell in that row, column or 3x3 box.
(See disambiguation below for examples).
Each digit appears in exactly one marked cell.
Othogonally adjacent digits may not be consecutive.
In boxes 1, 2 and 3 each digit's position number within a box must equal that digit at least once.
For example, in row 3 an 8 must appear in either R3C2, R3C5 or R3C8.
Disambiguation:
Example: If R5C3 is a marked cell then then R5C1 would be a 3 (row position), R1C3 would be a 5 (column position), and R4C1 would be a 6 (box position).
Clink the link to see Simon from CTC explain the rule set for the original puzzle that gave me the inspiration:
CTC Video link.
The way this puzzle came together was pretty amazing. I'll include the tale in the comments below. Enjoy :)
F-puzzles link.
Solution code: Solution code: Row 7, column 7.
Comments
on 19. August 2024, 02:08 by yasmim.nat
Absolutely brilliant!!
on 4. August 2023, 19:44 by talldrinkofwater
Once you get your grips around the ruleset (it took me a few minutes at first to understand it) the solve itself is a pleasure. Pretty easy with a really smooth flow of logic. I really enjoyed it, thank you Farkov!
on 6. May 2023, 01:59 by csbaker
Thanks for this great ruleset. It was a fun solve!
on 25. April 2023, 00:09 by Pulsar
Hi Farkov, I loved your puzzle. It inspired me to create a miracle sudoku with even fewer rules, which you may find interesting:
https://logic-masters.de/Raetselportal/Raetsel/zeigen.php?id=000DPD
on 13. April 2023, 00:09 by Hydalin
What a beautiful puzzle! Nothing more to say - absolutely amazing.
on 12. April 2023, 22:11 by TheRiddler
Beautiful puzzle!
on 11. April 2023, 00:55 by Jay Dyer
Very cool. This rule was just begging for an empty grid puzzle, so I'm glad that this exists.
on 10. April 2023, 16:20 by Agent
Mind-blowing puzzle! Very smooth too.
on 9. April 2023, 19:24 by belfieldtj
I really enjoyed this puzzle - many thanks.
on 9. April 2023, 10:45 by Silverscree
Lovely puzzle! Not sure how difficult it is because I could rely heavily on the logic I used in the Jay Dyer puzzle the other day/week to get through most of the break-in
on 9. April 2023, 10:00 by Phistomefel
Amazing find!
on 9. April 2023, 02:09 by GorgeousNicko
'Tis an Easter miracle indeed!
on 9. April 2023, 01:07 by Farkov
I became aware of this rule set after solving a Jay Dyer puzzle that featured on CTC. That was Thursday afternoon. The next day (Good Friday) I realised that a non-consecutive constraint might be interesting with that particular rule set. I quickly discovered that the addition of that constraint actually gave a unique grid! Unfortunately, after much trying, I was unable to find a human-solvable solution path; so, on Saturday, I posted my findings in the testing section of the CTC Discord server. It was picked up by TopAutism who worked on it, like a machine I might add, for hours and, by Saturday night, was able to nail down an amazingly succinct addition to the ruleset that makes the puzzle work.
So, having searched for a blank starting grid for years, this miraculously fell into my lap in such a fashion that I went from having nothing on the morning of Good Friday to being able to post this puzzle on Easter Sunday morning. I cannot thank Jay Dyer and TopAutism enough. Without Jay Dyer's rule set, and TopAutism's hard work and genius, this puzzle simply wouldn't exist.
