Counterclockwise Killer
(Published on 11. February 2023, 15:26 by bodemeister)
Rules:
- Normal Sudoku Rules Apply.
- Indexing: For each row, the digit in column 1 indicates the position of digit 1 in that row, and the digit in column 9 indicates the position of digit 9 in that row. Likewise, for each column, the digit in row 1 indicates the position of digit 1 in that column, and the digit in row 9 indicates the position of digit 9 in that column. For example, 4 in R1C9 would force 1 in R4C9 and also force 9 in R1C4.
- Killer: Digits in cages enclosed with a dashed border must sum to the number indicated in the top corner.
- Anti-Ratio: Digits separated by a black diamond do not form a 1:2 ratio.
Solution code: Row 3 followed by row 6
Comments
on 10. May 2024, 21:46 by The Book Wyrm
Very nice puzzle!
Some interesting interactions between the cages and the indexing, and an impressive minimal grid.
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Thanks for solving! A little bit of a pity the Anti-Ratio (or another similar rule) was necessary. But I thought the solve was interesting enough to warrant a publish.
on 29. February 2024, 11:17 by wullemuus
Again a wonderful puzzle with your brilliant and often hidden logic! Part of this I recognized also in the unlucky killers puzzle. Your intended way is even more beautiful as I recognized myself and with your teaching I'm sure I will be accomplished one day ;). Excluding digits on my way is often the brutal try and error variant ... . And in my experience the underrated puzzles are those with the most jewels to find. Looking forward to your next masterpieces!
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Thanks a lot for your wonderful comment, for solving 5 of my puzzles now, and most of all for your efforts to completely understand the solve! You're a brilliant solver to make it through so many challenging puzzles!
on 11. July 2023, 22:58 by saydo17
Wow! That was a super fun puzzle. Took me a long time but finding the logic was a great dopamine rush! Thanks!
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Thanks for solving my puzzle and commenting, and I'm glad you enjoyed it! I had fun setting it!
on 10. April 2023, 08:19 by Ryx
Very difficult puzzle for me. I kept making incorrect assumptions. Thanks to bodemeister for setting and sharing this one ... and a huge thanks to the coaching/hints he shared, to get me to this Easter miracle of finally solving this one (probably 7 restarts and at least 8 hours). Whew!
@Ryx Thanks for solving my puzzle and for the kinds words! Glad you persisted and made it through.
on 20. February 2023, 09:30 by dennischen
First time doing a nontrivial indexing puzzle, and that was rough... but I made it through in the end. Thanks for the puzzle!
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Thanks for solving my puzzle! Looking forward to solving more of your puzzles!
on 12. February 2023, 09:07 by Arlo Lipof
I had never seen a row *and* column indexing. What amazing interactions, thank you for this fantastic puzzle!
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Thanks for your comment, and I'm glad you enjoyed the puzzle! I'm not the first one to design a puzzle with both row and column indexing, but I'm glad you got to experience it!
on 11. February 2023, 19:30 by dinocat
Oh, this one finally helped me understand how 1/9 indexing works together! Thanks, very fun!
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Awesome, glad you enjoyed the puzzle and found it useful!
