These Sudoku Rules... They're Mad!

Рет қаралды 29,689

Күн бұрын

** TODAY'S PUZZLE **
KNT is a constructor of such extreme intellect that any sensible solver approaches their puzzles with a sense of awe and fear! So when one is "only" rated of average difficulty it represents a chance for us mere mortals to visit, if only briefly, the brain of a mastermind. Oh and this one has mad rules... did we mention that?!
Play the puzzle at the link below:
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Rules:
Place the digits from 1 to 6 exactly once in every row, column, and region. The regions are orthogonally OR diagonally connected and must be located by the solver. A number in the top left corner of a cell indicates the sum of the digits in the orthogonally connected section of the region that cell belongs to. A cell with a red X in the bottom right corner indicates the size (ie the number of cells) of the orthogonally connected section of the region that cell belongs to. All possible size clues (red Xs) are given.
** NEW SUDOKU HUNT ON PATREON **
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Other treats on Patreon include:
- the Sumgeons & Diagrams sudoku by sunnyjum;
- Simon's latest forays into the world of Islands Of Insight;
- Mark's video looking at the new OneUp puzzle from Rodolfo Kurchan;
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- and Mark's latest solve of The Times Club Monthly cryptic crossword
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▶ Contents Of This Video ◀
0:00 Theme music
0:20 Crossword video
0:31 KNT's puzzle intro
2:01 Patreon
2:16 Happy Birthdays
4:14 Rules
6:48 Start of Solve: Let's Get Cracking
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Пікірлер: 117

@KNT_awesome12345 21 күн бұрын

9x9 version coming soon...

@azrobbins01 21 күн бұрын

Something tells me it will be significantly harder!

@dkamm65 20 күн бұрын

@@azrobbins01 About 125% harder.

@flinty8121 20 күн бұрын

Beautiful puzzle.

@KNT_awesome12345 20 күн бұрын

@@azrobbins01 This puzzle *was* going to be the example for the 9x9... but I liked this little guy enough, and knew if I posted it just as the example then people probably wouldn't solve it. So that's why it's here :)

@martysears 20 күн бұрын

This was absolutely stunning! What a brilliant and fun ruleset, and remarkable how powerful it is in filling things in on its own without extra clues. Probably one of my favourite ever 6x6s

@karlhaendler1805 21 күн бұрын

Accidentally paused the video and it was far too long before I realized that it was paused and that Simon wasn't just having a quiet think about things.

@riluna3695 20 күн бұрын

lol, yep. I usually experience that in reverse, where I'll hop back to the video, swipe loosely at the space bar, and nothing happens for a second or two, so I try again, thinking I'd missed it. But nope, just really good timing on Simon staying perfectly still and quiet for a couple seconds :P

@57thorns 20 күн бұрын

Happens a lot.

@skiesofarcadia4885 21 күн бұрын

The rules melted my brain for a few minutes, but once I finally understood them, the puzzle unfolded nicely and was a lot of fun to solve!

@gibbbon 20 күн бұрын

still not understood them, the whole "all possible red x are given" to me it meant that there are only two possible size of orthogonally connected regions, but it seems it is not the case.. edit: oh, finally got it, so if a region got a digit that correspond to the size of the region, it got an x, all others region don't, got it edit again after a little less than half an hour: and indeed, it's not so hard once you get the rules

@ilsekleibscheidel7219 19 күн бұрын

@@gibbbon Same misunderstanding in the beginning for me.

@angec9908 21 күн бұрын

Maverick has your office bugged

@13vatra 20 күн бұрын

And he seems to fly closer and closer every episode. One of these days we're going to see Simon jump in shock and hear a bang and Simon is going to tell us that Maverick's wing clipped his window which was swung open.

@TheSequentCalculus 20 күн бұрын

As the rules are written, they are ambiguous. They don't state that the number in the upper left corner of a cell must be in the orthogonally connected section of the region; they could also be in a diagonally connected cell summing the digits in the orthogonally connected section of the region.

@SweetBlues23 21 күн бұрын

what a ridiculously clever ruleset. Might be one of the best (short) puzzles ever on here

@HunterJE 20 күн бұрын

34:57 An alternate route to breaking the deadly pattern directly from this point that feels pleasing to me - the 2x2 at middle left cannot all be the remaining color, since there's an non-x-clued 4 there, which means orange must take at least one cell in that area, but since orange cannot take r4c2 without breaking the 8 cage it must take r4c3, which therefore must be a 6 since orange already has a 2.

@dkamm65 21 күн бұрын

28:17! Really proud of myself for figuring this one out on my own. Really lovely puzzle. The cell being looked at by the 3 and 4 to rule it out was my favorite part.

@steeevealbright 20 күн бұрын

i LOVED this puzzle. 58 minutes all on my own. Fantastic.

@nomore6167 20 күн бұрын

The rule, "The regions are orthogonally OR diagonally connected and must be located by the solver", is ambiguous. Emphasizing the word "OR" implies that the regions are connected orthogonally or connected diagonally, but not both methods within the same region.

@arabellabisshop3347 18 күн бұрын

I’m a bit late to the party but thank you so much for my birthday shout out!! It’s truly incredible the time you take to appreciate your viewers! I’m already so grateful that I get to spend every day watching these videos, let alone by someone so thoughtful! You should be very proud of the community you have both created. Thank you!!

@chomikhunter 19 күн бұрын

20:37! I'm really liking all these puzzles from KNT, and I can't wait for them to create some more amazing puzzles!

@francoisduez601 21 күн бұрын

12:05 for me. I would not have expected a puzzle with such mad rules to flow this easily... This negative constraint is deadly 😅😊

@DarkChasm 20 күн бұрын

Am I the only one who thinks the rules aren't as restricted as everyone assumes? "A number in the top left corner of a cell indicates the sum of the digits in the orthogonally connected section of the region that cell belongs to". To me , nowhere in that sentence does it say that the topleftcorner number has to be in the orthogonally connected section, just that it indicates the sum of the orthogonally connected section of that region. Same is true for the red crosses.Also, it says "section", not "sections", which to me means that every region can only have 1 section of orthogonally connected cells, which in Simon's solve, the green cells clearly has 2 cells of orthogonally connected sections..

@nochsta 20 күн бұрын

(Orthogonally connected section of the region)~>(that cell belongs to) Not (Orthogonally connected section)~>(of the region that cell belongs to)

@thefallenarm589 20 күн бұрын

I think to be quite easier to understand, the rule "The regions are orthogonally OR diagonally connected" should be rephrased "cells of a region are orthogonally OR diagonally connected"

@nomore6167 20 күн бұрын

"...should be rephrased 'cells of a region are orthogonally OR diagonally connected'" - Even that's ambiguous, as emphasizing the word "OR" makes it sound like the cells are connected either orthogonally or diagonally, but not both. In my opinion, the rule should be written, "Cells of a region may be connected orthogonally, diagonally, or both".

@chocolateboy300 20 күн бұрын

I finished in 54 minutes. I was very surprised at how effective the negative constraint rule is in this puzzle. As soon as I reminded myself of it, the puzzled flowed with such great logic. I very much enjoyed this one. Great Puzzle!

@burnheart123 19 күн бұрын

10:00 I don't think the rules actually require the cell with the 8-clue to be part of the orthogonally connected section of that region. That cell could as well connect diagonally to the orthogonally connection section, which then sums up to 8.

@Gonzalo_Garcia_ 20 күн бұрын

10:04 for me. What an interesting idea, I really liked those disconnected regions. Fantastic puzzle!!

@Vic-hy2ml 20 күн бұрын

i loved it! thanks simon

@flinty8121 20 күн бұрын

Excellent puzzle & solve.

@Lutterot 20 күн бұрын

What a gorgeous little puzzle!

@emilywilliams3237 20 күн бұрын

This is very interesting, a fascinating solve. I tried it, with a bit of hubris making me think that I could do it based on the video length - but I got nowhere. Thanks, Simon, for lighting the path!

@nedb147 20 күн бұрын

That was excellent. Really fun to solve thanks

@mikepictor 20 күн бұрын

That was so much fun to do. 26 minutes for me. So many subtle logic points that make you feel well clever for spotting.

@chelseac4553 17 күн бұрын

What a lovely puzzle! Took me a hot minute on my own because I didn't appreciate that 1 was not allowed to be isolated as a size-1 orthogonal island. Bravo!

@megasnor7112 9 күн бұрын

I still dont understand, can you explain?

@henrygifford544 20 күн бұрын

Incredible. Another puzzle I never thought I'd be able to solve that ended up flowing exceptionally smoothly.

@user-on1yq5gq6z 17 күн бұрын

Agree wholeheartedly. 17:28 for me, after sitting for a while thinking that there is no way the given information can possibly be sufficient

@unreal1air477 19 күн бұрын

this is the first time i've ever done a puzzle like this! i really liked the negative constraint. very cool stuff.

@LednacekZ 21 күн бұрын

very interesting rules set. i failed at basic sums, cant add up to 14.

@frankjiang1857 20 күн бұрын

Finished in 21:26. Very interesting negative constraint which along with where regions can cross through makes it fairly intuitive to know where to go next with the puzzle. Fun puzzle!

@LyuboRyuk 21 күн бұрын

Beautiful puzzle with cute logic ❤

@Yttria 19 күн бұрын

Loved it. Took awhile to understand the constraints but then it went quickly. Finished in 30:23.

@user-fp6dt1os1l 21 күн бұрын

Simon, if you have a recent NVIDIA graphics card, you can enable a feature called RTX Voice which does a very good job at removing such background noise.

@kyleflanagan963 20 күн бұрын

Sure, but I would argue that Maverick has been a part of these puzzle videos for such a long time that they're almost part of the family. I wouldn't want to lose that.

@TurquoizeGoldscraper 21 күн бұрын

20:46 for me - this puzzle was weird. I'm glad this rule set was introduced with a 6×6 because I'd be lost if it were a 9×9.

@mery1973able 17 күн бұрын

This puzzle is great! :-)

@MattYDdraig 20 күн бұрын

11:14 Absolutely mental, and thoroughly enjoyable for it! The bottom right region does a lot of heavy lifting once the positive clues expire.

@srwapo 21 күн бұрын

22:10, fast start, but took a LOT of thinking to figure out how to place the final regions at the end.

@CauchyIntegralFormula 20 күн бұрын

27m01s. That was very entertaining! Negative constraints are always really interesting to work with, and this was no exception!!

@six_5000 21 күн бұрын

I felt like Dara Obreien on taskmaster - I kept repeating “Wait, what?!” 37:46

@steve470 20 күн бұрын

What? Wait.

@grahamania 21 күн бұрын

00:25:28 for me. That was a wonderful puzzle. Loved the diagonal feature! Kind comment.

@pokinDave 20 күн бұрын

As usually one of the most soothing corners on the Internet, the background noise was incredibly distracting and really overshadowed the ingenious construction for me. Next time please just pause the recording until you can continue.

@Tepalus 20 күн бұрын

17:10 for me :) I gotta say, I totally forgot the negative constrain at the start and was just staring at the puzzle. lol

@nicocost33 21 күн бұрын

42.27 for me. Great puzzle. Thanks.

@H0lyMoley 21 күн бұрын

That was really satisfying to solve for a novice like myself. 35 minutes. It probably shoulda taken a lot less time but I didn't get the point about the very first five for ages.

@anaayoung9142 20 күн бұрын

18:13 orange? 😅 The sound in the back seems like some kind of portal being open, very strange! 🧐 Oh no, this puzzle seems hard, but you did it very easily.... but as KTN commented... Let's wait to see the 9x9 version, probably will be super hard! 🤔

@viviencollomb-clerc5526 20 күн бұрын

Beautiful 6*6. I’m hurry to see 9*9 🙏👍

@nemoyatpeace 19 күн бұрын

Beautiful puzzle to solve, lots of fun. Rules made perfect sense to me, though I made some wrong assumptions and had to backtrack a couple of times 22:14 solve time.

@TehFilmFanatic 21 күн бұрын

If you need a "2 in the corner" song then I highly recommend Carly Rae Jepsen's "If you know what I mean".

@levb258 20 күн бұрын

22:56 for me, a nice approachable puzzle!

@travisporco 20 күн бұрын

That diagonal action is interesting.

@57thorns 20 күн бұрын

20 minutes, a nice Saturday Morning warmup. Now off to 18xx, some seriously hard code train gaming. Weather forecast is brain melting with just a pinch of frustration and panic.

@SilentTM 20 күн бұрын

What is interesting to me is I solved it but not entirely through the same sequence of squares you did. The first 6-7 numbers yes, but after we went through different quadrants and it still worked

@jdyerjdyer 10 күн бұрын

My brain broke on this one. Three restarts because I kept running into a contradiction. Reread the rules each time. Then I realized that R1C9 didn't have to belong to the 14 clue, as if it did, then it would force the contradicting 3s. Once I figured that out the rest went smoothly until I added the last two colors. For some reason I kept wanting to force R9C9 into the left side cage in zig-zag fashion, but it kept breaking one way or another. The reason I kept trying this was I thought the X exclusion was making that corner impossible for that corner's color as you would end up with 3 orthogonal trying to escape with a 3 in one cell, or a four orthogonal with the 4 in R9C9, or by escaping through the bottom hatch you ended up with 6 cells and that has to have a 6 in it. Then I realized that you could do a 5 cell orthogonal region with the 6th cell being diagonally connected with the 5. Doh! Oh, well. Still, 30+12+7+5=54 minutes for my total time...not too shabby!

@jdyerjdyer 10 күн бұрын

I wish I'd thought about the 1 not being allowed in the diagonal 1 cell regions. That completely finished the bottom half much easier than my "Both colors need to reach a 4." issue where I'd made my mistaken assumption about the R9C9 cell being an impossibility for the bottom right region due to the X exclusion. With the 1s logic, you closed the "escape hatch" I had in my solve so there was no ambiguity and that region was forced into its shape quite nicely. Thank you for educating me again, Simon. I mean that in the most caring and delightful way. I love seeing the pure logic come out to play!

@ericpraline1302 20 күн бұрын

Interesting rules. As soon as I saw them I knew they would trip me up and lo and behold they tripped me up. A 9x9 version is worrying.

@przemekmajewski1 20 күн бұрын

Cool small puzzle! 25 minut solve time here.

@chipsounder4633 21 күн бұрын

This looks cool

@compiling 20 күн бұрын

21:51 - the steps seemed to alternate between being very easy to see and very difficult. I made an assumption that the different totals would be in separate regions, but the 10 and 8 cages were forced apart very early anyway. A 9x9 version of this sounds like it would be very hard.

@richardfarrer5616 18 күн бұрын

I stared at this blindly for a couple of minutes then the power of the negative constraint suddenly clicked, and I managed 16:22

@Rach881101 20 күн бұрын

31:55 for me. Beautiful puzzle!

@swimfit57 19 күн бұрын

Amazing

@elizabethswann05 20 күн бұрын

thank you for the birthday shoutout🥺🥰

@Stompound 20 күн бұрын

I watched this three times before I figured out how the negative constraint works. I feel dumb

@antosandras 19 күн бұрын

30:45 No need to involve row 2, r4c5 sees a 3 in r4c1 anyway.

@DrBiscotti 20 күн бұрын

why is the microphone taking so much of the outer noises? I feel like there is a wrong setting

@GQSmoos 20 күн бұрын

Unfortunately, I failed on this one. I made it to where you are at 33:02 except that I incorrectly assigned the top-right cell to yellow.

@Rubrickety 19 күн бұрын

Terrific puzzle! My solve was much smoother than Simon's if you ignore my first attempt. 😉

@timdunkley9173 6 күн бұрын

I agree. The rules are not clear. And how can one cell be an orthogonally connected region?

@niceshot7613 20 күн бұрын

How do you declare at the start that the 17 in the top left correlates with the red x. why couldnt the 10 be apart of the red x and be a 3 cell. with a 3,5,2 orthogonal. would starting with the 17 and going to that x be considered a guess? or am i missing the logic of why only the 17 works.

@EricMill 20 күн бұрын

The idea is that you can't avoid the 17 section having to have a red x in it, and the only configuration that works is a 5 cell sized region. So that region has to stretch over to the red x to get it (it can't reach the other one).

@niceshot7613 20 күн бұрын

@@EricMill oh i see i spose the only way to make 17 is with 5 digits including the 5. i just misunderstood the rule which would be "Any time a cell contains a number that is equal to the number of orthagonally connected cells in a region, that region must contain a red x."

@Aciek25 16 күн бұрын

It was 30 minutes and 20 seconds for me. A little bit faster than Simon. It's unusual for me.

@RichSmith77 21 күн бұрын

For someone who finds it necessary to apologize whenever Maverick flies past for 30 seconds, I'm a little surprised you continued with the recording while someone was mowing (their/your?) lawn right outside your window for ten minutes. 😂

@PhilBoswell 19 күн бұрын

At least he didn't infenestrate the scoundrel and send him to Mordor…

@stephenvale2624 20 күн бұрын

I used to think i was smart. Then I met this channel...🤯

@roccov3614 20 күн бұрын

I didn't see that the top right cell was reached diagonally. That was stuffing me up. Had to watch the video to get past that point. Then I was able to complete it.

@Grandy_UiD 20 күн бұрын

9:22 why does the blue region have to go to r2c2? Couldn't it go from r1c2 to r2c3? I guess I just don't understand the rules.

@ilsekleibscheidel7219 19 күн бұрын

Because if it went to r2c3 without r2c2, 17 would have to be the sum of a 2-cell-section, which is impossible with the digits 1-6.

@Grandy_UiD 19 күн бұрын

@@ilsekleibscheidel7219 Ah, fml. I thought the number in the top left was the sum of the DIAGONALLY connected cells. That explains why I came to VERY different conclusions. But even then I don't see why that region can't go that way. Just because you have only two orthogonally connected cells there, doesn't mean there is only two orthogonally connected cells in that region period, does it? Ah wait, that's where the "that cell belongs to", comes into play. Yeah, I get it know I think.

@TiagoMorbusSa 21 күн бұрын

The Silent Hill sounds in the background were very disturbing.

@_-_-Sipita-_-_ 17 күн бұрын

9:48 for me.. the solution is...wrong?

@_-_-Sipita-_-_ 17 күн бұрын

oh nvm i just had to switch the 5s of the 2 bottom left regions

@matthewcorbett1079 19 күн бұрын

Cant wrap my head round the rules of this one at all. All regions have some orthogonal section and a diagonal section so shouldn’t there be 6 red X’s? Eg. For pink, why doesn’t the 5 have an X? The 5 belongs to the pink region and should “indicate the size of the orthogonally connected section of the region that cell belongs to.” It cant be treated as separate to the region or its own region for this clue. If it’s defined as its own region it would have to contain the digits 1 to 6. The same ambiguity exists for the sum digit. Nowhere does it state the cell containing the sum must be part of the orthogonal section of the region just that the cell must belong to the region. I must be getting lost in the semantics as everyone else seems to be understanding this without question.

@ilsekleibscheidel7219 19 күн бұрын

Because the pink 5 doesn’t belong to the orthogonally connected 5-cell-section oft he pink region. The regions are divided in (one or) several sections. The rules are saying „section of the region that cell belongs to“. This has to be read, that it has to be part oft he orthogonally connected section, not only the region. This sounds bit ambiguous and confused me too in the beginning, had to read the rules far more than once. But they are ok.

@theredstoneengineer6934 20 күн бұрын

16:25 for me

@williamyoung7916 20 күн бұрын

on the 14 clue the total is in the top left box so the boxes above couldn't be part of it

@arrgghh1555 20 күн бұрын

The rules specify top left of a cell, not of a region. You're making assumptions of conventions from other rule sets.

@inspiringsand123 21 күн бұрын

Rules: 04:18 Let's Get Cracking: 06:56 What about this video's Top Tier Simarkisms?! The Secret: 7x (03:25, 03:42, 10:43, 10:46, 10:47, 10:56, 17:57) Maverick: 2x (10:09, 10:26) Three In the Corner: 1x (33:08) And how about this video's Simarkisms?! Ah: 10x (01:56, 11:40, 13:03, 21:38, 22:19, 22:19, 22:42, 24:16, 27:40, 35:46) Sorry: 8x (08:46, 10:23, 10:28, 25:43, 25:43, 27:32, 27:57, 28:54) Beautiful: 7x (11:43, 17:11, 17:13, 27:12, 29:58, 30:07, 35:52) Hang On: 5x (14:13, 23:38, 23:59, 28:15, 29:20) Lovely: 3x (17:22, 26:06, 36:20) In Fact: 3x (17:09, 17:09, 31:11) Wow: 3x (11:46, 22:02, 33:22) Gorgeous: 2x (11:40, 36:31) I've Got It!: 2x (08:17, 29:55) Obviously: 2x (02:06, 07:29) Cake!: 2x (02:41, 04:09) Goodness: 1x (08:55) The Answer is: 1x (12:04) Stuck: 1x (25:31) Brilliant: 1x (01:05) Ridiculous: 1x (35:55) By Sudoku: 1x (34:36) Snake: 1x (02:08) Baffling: 1x (32:44) Fabulous: 1x (02:11) Pencil Mark/mark: 1x (22:12) Triangular Number: 1x (20:54) Weird: 1x (19:03) Most popular number(>9), digit and colour this video: Fourteen (18 mentions) One (54 mentions) Green (32 mentions) Antithesis Battles: Outside (3) - Inside (0) Row (6) - Column (4) FAQ: Q1: You missed something! A1: That could very well be the case! Human speech can be hard to understand for computers like me! Point out the ones that I missed and maybe I'll learn! Q2: Can you do this for another channel? A2: I've been thinking about that and wrote some code to make that possible. Let me know which channel you think would be a good fit!