A puzzle I set in wisty's style. Warning!!! This is an extreme scanning challenge and only recommended for masochists. However, there is a logical path through the puzzle without any required lookahead. I recommend solving the version with the disjoint regions colored in, or coloring them yourself. Enjoy!
Rules:
Fill the grid with digits 1-8 such that no digit repeats in any row, column or region. Cells outside of regions do not contain digits.
Antiknight: Cells a chess knight's move apart must not contain the same digit.
Disjoint Sets: Within each region, the cell positions are numbered from 1-8 in reading order. Two cells in the same cell position must not contain the same digit.
Arrows: Digits along an arrow must sum to the digit in the attached circle.
Kropki Pairs: Digits separated by a white dot must be consecutive. Digits separated by a black dot must have a ratio of 2:1. Not all possible dots are necessarily given.
With colored disjoint regions:
Without colors:
Solution code: row 3 from left to right (8 digits)
on 23. January 2025, 19:33 by Playmaker6174
I guess I'm becoming the next level of masochist now... x)
That was quite a funny solve with some tight and intense scanning spots there, but well done putting everything together at the end!
on 22. January 2025, 04:38 by askaksaksask
So fun and enjoyable! I didn't think it was unfair at all, but certainly a scanning flex!! I thought the logic employed was actually very smooth and fresh, really liked this one. Thank you!!
on 22. January 2025, 04:12 by Justalilguy
Wow, not looking ahead was a challenge! I looked ahead a couple of times but was able to find a logical path apart from that, and it felt very satisfying to find those. Great puzzle!
on 21. January 2025, 21:06 by glum_hippo
Ein rumflanierendes Huhn findet auch gelegentlich ein Korn...
Hat aber Spaß gemacht, die Logik ist sehr sauber!
on 21. January 2025, 15:53 by Myxo
fixed the solution check in all links, thanks so much TripleABattery!
on 21. January 2025, 15:43 by TripleABattery
I really enjoyed this! There were some very nice bits of logic and nothing too absurd. To me it felt more like a 3* puzzle, though the coloured grid helped a lot with scanning.
on 21. January 2025, 14:57 by wisty
This is possibly the most Wisty puzzle not set by Wisty. Thank you SO SO much for sharing it!!! There's so much nice geometry and arrow logic! The break-in is tricky to spot but every step is very fair, and quite interesting.