Logic Masters Deutschland e.V.

Double or Nothing (Arrow X)

(Published on 5. March 2023, 18:25 by tallcat)

When I first started setting sudoku, arrow was my first love as a constraint and I like to refresh my memory every now and then. When I started this one, it felt almost 'anti-Four Corners' given the way the arrows and logic play out - but I still like how it came together. Happy solving!

Normal Sudoku rules apply

Arrows: Digits on arrows must sum to the digit in the circle.

Sudoku X: Digits 1-9 must appear on each diagonal once only.



Can be found at f-puzzles or CTC

Solution code: Row 2 (left to right) followed by column 7 (top to bottom). 18 digits, no spaces.

Last changed on on 5. March 2023, 20:22

Solved by TNGuy, jalebc, Vebby, AKernel, AN_not_IO, thoughtbyte, Piatato, Mrtn, tuturitu, gige, udukos, AvonD, Calvinball, Uhu, antiknight, peterkp, Montinox, MrKenderson, zuzanina, SKORP17, Cypher, Qodec, ... dingledork, vmirandaa, zrbakhtiar, Christounet, Chishiri, erfan, Nemefish, PippoForte, Nicholas Roberts, mezkur7, lmdemasi, trashghost, moss, bpcobra96, Bobbobert, Koba, PinkNickels, spamus
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Comments

on 8. March 2023, 15:21 by Mr.CHEN
A Chinese solve video(SPOILER ALERT):https://b23.tv/c81TsxA

on 7. March 2023, 15:01 by sdlay2
Very nice, incredibly pretty puzzle :)

on 7. March 2023, 06:25 by Nordy
Very nice minimalism, and a wide variety of logic! 2.5 stars for me :)

Last changed on 6. March 2023, 22:01

on 6. March 2023, 21:39 by Paquet Voleur
I feel like the deductions, though none was particularly tricky, were discovered using a wide variety of methods. It made the overall difficulty of the puzzle hard for me to evaluate. I feel like 2 stars could be fair, but as someone also mentioned, it took me a bit longer than other 2-star rated puzzles, and also left me with an impression of richness that seems to deserve more than 2 stars. I abstained rating the difficulty because I'm unsure, and only rated the beauty of it, which got my full approval. Thanks!

Last changed on 6. March 2023, 19:04

on 6. March 2023, 18:59 by peep50183
I'd genuinely love to know how I was supposed to solve this because I don't normally take 63 mins to solve a 2* xD but thank you for setting this because it was lovely :)

EDIT: I am glad you enjoyed it. I am surprised it ended up as 2/5 in the end as I felt there were enough tricky spots for it to be a 3/5 - but the solvers have spoken!

on 5. March 2023, 21:08 by antiknight
Cool ending but it's at most 2 stars :)

on 5. March 2023, 20:03 by Piatato
Nice minimalistic puzzle! I don't think it's anywhere close to 3/5, though, it at least felt like 1.4/5 for me. :)

Difficulty:2
Rating:93 %
Solved:160 times
Observed:8 times
ID:000D63

Variant combination Online solving tool

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Solution code:

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