Chackstones (XVXV/Kropki pairs/X-sums)
(Eingestellt am 27. April 2024, 02:42 Uhr von dumediat)
This is a puzzle that I created for Malrog's birthday, and they were gracious enough to suggest that I publish it here to share with all of you.
Ratings, comments, and feedback are much appreciated! Please feel free to reach out to me on Discord if you have any comments or questions. Please also feel free to try my other puzzles here.
Rules:
- Normal sudoku rules apply. Place the digits 1 to 9 in the grid such that digits do not repeat in any row, column, or 3x3 box.
- XVXV: Cells connected by a V must sum to either 5 or 15, and cells connected by an X must sum to either 10 or 15. Not all possible Vs and Xs are given.
- Kropki pairs: Numbers separated by a white dot are consecutive, and numbers separated by a black dot have a 1:2 ratio. Not all dots are given.
- X-sums: Clues outside the grid (gray cells) give the sum of the first N digits in their respective row or column, where N is the digit nearest the clue.
Penpa+: https://tinyurl.com/2ajkysk6
SudokuPad: https://sudokupad.app/fyvbtp2esd
Lösungscode: Column 6
Kommentare
am 12. August 2024, 15:42 Uhr von Bankey
Very hard and very enjoyable. Thanks, @ dumediat :).
am 1. Mai 2024, 15:26 Uhr von Solved647
Took me forever to find the break in, and I did have to "brute force" the first cell after narrowing it down to 4 possibilities, but the rest of the puzzle was just a lot of staring at things until the made sense :)
Really enjoyed the challenge and the different approach.
am 29. April 2024, 08:21 Uhr von Malrog
I'm honoured and flattered that such a puzzle could be created for me. This is really amazing, and there were at least three separate deductions in the puzzle that had me gasping in delight. It is hard, but it's also fair, and there's basically never a need to bash at it. A tour de force dumediat, thank you :)
am 29. April 2024, 02:52 Uhr von shteev
Maybe this puzzle was just too clever for me, but nothing about solving it didn't feel like brute forcing it
>>dumediat: I'm sorry you felt that way, but I can assure you that no step in this puzzle requires brute force. I'll be happy to talk through any steps if you'd like.
am 28. April 2024, 04:27 Uhr von Calvinball
That just happened?! Even after solving this I'm not sure something this amazing should exist, yet it does.
am 27. April 2024, 18:51 Uhr von Myxo
Very beautiful puzzle!
am 27. April 2024, 17:03 Uhr von goodcity
Insane setting !
am 27. April 2024, 15:38 Uhr von lmdemasi
Super cool!
am 27. April 2024, 12:06 Uhr von Snookerfan
Superb! Thank you
am 27. April 2024, 10:54 Uhr von Piatato
Very tough, impressively set.
am 27. April 2024, 07:32 Uhr von by81996672
Great puzzle.
am 27. April 2024, 05:35 Uhr von bansalsaab
Amazing puzzle.
am 27. April 2024, 02:48 Uhr von Bellsita
The logic in this puzzle is insanely good! WOW!
