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Code Golf

Timeline for The fastest Sudoku solver

Current License: CC BY-SA 4.0

47 events
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Jun 6 at 14:27 answer added Mustafa Dokumacı timeline score: 3
Apr 29 at 8:21 history unprotected emanresu A
Feb 22 at 17:17 history protected Community Bot
Sep 1, 2024 at 22:29 history unprotected emanresu A
Aug 30, 2024 at 14:23 history protected Community Bot
Jul 31, 2024 at 3:25 history unprotected emanresu A
Jul 8, 2024 at 14:59 history protected Community Bot
Jul 8, 2024 at 14:41 answer added Martin F Schulz timeline score: 3
Mar 15, 2023 at 1:01 comment added Jerry Jeremiah In case you need the world's hardest sudoku: abcnews.go.com/blogs/headlines/2012/06/…
Feb 28, 2022 at 12:59 answer added Mustafa Dokumacı timeline score: 2
Sep 22, 2021 at 20:23 answer added Mirage timeline score: 9
Apr 6, 2021 at 12:03 answer added Ruben Artmann timeline score: 2
Jan 14, 2021 at 20:33 history unprotected caird coinheringaahing
Oct 22, 2020 at 15:47 history protected Community Bot
Aug 9, 2020 at 16:50 history edited maxb CC BY-SA 4.0
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Jun 11, 2020 at 6:29 answer added Hugh Williams timeline score: 4
Aug 31, 2019 at 19:14 vote accept maxb
Aug 31, 2019 at 17:41 history edited maxb CC BY-SA 4.0
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Aug 30, 2019 at 4:11 answer added 53x15 timeline score: 4
Aug 29, 2019 at 19:12 answer added 53x15 timeline score: 17
Aug 29, 2019 at 12:03 answer added maxb timeline score: 3
Aug 28, 2019 at 13:44 history edited maxb CC BY-SA 4.0
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Aug 27, 2019 at 15:49 comment added maxb @ngn i haven't revealed that only because I'm still working on it (and I got beat). I'm in the 3.5-4s range with Java, I have some quirks to work out, and then I'll attempt to migrate it to C++
Aug 27, 2019 at 14:50 comment added ngn @maxb would you be willing to reveal the exact run time of your own solver? if it's not too different from 2.2s, it might be worth trying to improve the i/o of my (Arnauld's really) solution too
Aug 26, 2019 at 10:24 answer added ngn timeline score: 4
Aug 26, 2019 at 6:20 history edited maxb CC BY-SA 4.0
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Aug 26, 2019 at 5:33 answer added tsh timeline score: 5
Aug 24, 2019 at 22:12 history edited maxb CC BY-SA 4.0
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Aug 24, 2019 at 21:50 history edited maxb CC BY-SA 4.0
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Aug 24, 2019 at 20:16 answer added Arnauld timeline score: 8
Aug 24, 2019 at 13:00 history edited maxb CC BY-SA 4.0
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Aug 24, 2019 at 6:26 comment added maxb @TheMatt I'd prefer non-golfed, just so I can verify that nothing fishy is going on
Aug 24, 2019 at 3:28 comment added The Matt Should the entries also be code golfed? Or... Can they be golfed, for the fun it? ;-)
Aug 23, 2019 at 23:35 answer added Jonathan Allan timeline score: 5
Aug 23, 2019 at 21:31 answer added ngn timeline score: 2
Aug 23, 2019 at 20:26 comment added Graham OK I will simply copy your example input file as APL array rather than creating a file and run it. Half an hour looks like the likely outcome. Here I must declare that this function is not entirely mine but an adaption of one created by another member of the APL community.
Aug 23, 2019 at 18:51 comment added maxb @Graham Oh, now I understand what you mean. I could run it on my windows machine, but I think you should submit it and score it yourself, 1500 seconds is definitely not bad.
Aug 23, 2019 at 18:28 comment added Graham Sadly 30ms is for the hard example only. Unless this is worth pursuing I have only run the APL solver against your hard example and the first of the easy examples. If we can extrapolate from the hard example the we are looking at around 1500 seconds for the full set
Aug 23, 2019 at 18:00 history tweeted twitter.com/StackCodeGolf/status/1164960666408620032
Aug 23, 2019 at 17:55 comment added maxb @Graham it took 30ms for all 49151 sudokus, or 30ms on average?
Aug 23, 2019 at 17:24 comment added Graham I have an APL+WIN solver but unless you have a copy of the interpreter on your machine you will have to count me out. For info your hard example took 30ms and the first easy example 16ms.
Aug 23, 2019 at 16:10 history edited maxb CC BY-SA 4.0
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Aug 23, 2019 at 15:53 history edited maxb CC BY-SA 4.0
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Aug 23, 2019 at 14:35 history edited maxb CC BY-SA 4.0
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Aug 23, 2019 at 14:28 history edited maxb CC BY-SA 4.0
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Aug 23, 2019 at 13:35 history edited maxb CC BY-SA 4.0
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Aug 23, 2019 at 11:45 history asked maxb CC BY-SA 4.0
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