Was This Sudoku Solver Right To Despair?

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** CIRCLE SUMS by JESPER **
Simon's solve of this unbelievably good (and very challenging) sudoku is now available to watch on Patreon. It is over 2 hours long and is suitable only for those who enjoy movies...
/ crackingthecryptic
** TODAY'S PUZZLE **
An absolutely mad puzzle today from IcyFruit called Intersections. This is SUCH a beautiful idea, it seems semi-miraculous that it solves and there's a ton of original logic to discover. This constructor really is something else.
Have a go at the puzzle here:
sudokupad.app/9g93q6jrmB
Rules:
Place a digit in each cell such that in any row, column, or 3x3 box, if a digit is present, it appears exactly its own number of times (in that row, column, 3x3 box). Digits may not repeat within a cage.
Today's musical intro is Paranoid Android by Radiohead.
** HEXCELLS STREAM **
Our latest Hexcells stream is just out; you can watch it at the following link:
ru-vid.comG3hseZBCxIE
** JUST RELEASED!!! **
A brand new sudoku hunt from Riffclown for our February competition! Get it here for just $2:
/ crackingthecryptic
Other bonuses on Patreon currently include:
Simon's 2.5 hour solve of Roller Coaster Nurikabe
Mark's latest solve of The Times Club Monthly Special Crossword
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▶ Contents Of This Video ◀
0:00 Theme music & puzzle introduction
2:17 Rules
3:07 Simon solves Jesper's Circle Sums
3:55 More Instructions In Verse
5:32 Edgar Allan Poe in Virginia
6:38 Hexcells Infinite Tomorrow
7:43 Happy Birthdays
9:03 Start of Solve: Let's Get Cracking
▶ Contact Us ◀
Twitter: @Cracking The Cryptic
email: crackingthecryptic@gmail.com
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London
SW7 4UB
(Please note to use our real names rather than 'Cracking The Cryptic'.)
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3 июл 2024

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Комментарии : 279

@Jodawo 4 месяца назад

Simon keeps telling the setters how dare you make me do Sudoku. Finally, he gets a puzzle where he technically doesn't have to do Sudoku and he keeps wanting to do Sudoku.

@chris5619 4 месяца назад

Yes, he made the same comment.

@whiskeytuesday 4 месяца назад

It's the human condition

@istvanmagi473 4 месяца назад

Finding that 3 was absolutely brilliant. Simon being worried that he "could have written it in straight away" is just absurd.

@57thorns 4 месяца назад

Finding it out that quickly was stellar, as always.

@richbuckingham 4 месяца назад

it's simple logic to prove 789 can't be in the puzzle (the 5-cage blocks column 4 and row 5 leaving only 6 a possibility, but 6 then can't go in anywhere as using combinations of 123 to fill the remaining cells in each column/row breaks the boxes you try to fill) you then know the only combinations that can work are 135, 234, and 45 so a 3 has to be in the elbow of the 5-cage and then the row and column coming from it have to be one each of 234 and 135.

@dolf370 4 месяца назад

Yeah, I had to go down to check the comments to see how many called him "stupid". My guess is I'll find none.

@krtwood 4 месяца назад

The 5 cell cage was a fairly obvious place to look and you could see that the corner cell had pressure on it. You can prove it must be 3s across row 5 of box 5 without disproving 6 first just from the logic that it must be a shared digit in the corner of the cage which can only be 123 and must be at least 3 to not break box 5. I'm nowhere near the solver Simon is and I got that much. In that sense it was a bit of a "Doh!" moment for someone of Simon's caliber. But that was as far as I got without breaking the puzzle seven different ways before giving up. I don't see whatever Simon needed to do to get his head wrapped around the ruleset as a waste of time.

@frenchguy7518 4 месяца назад

@@dolf370 Tbh, i'm more bothered by his misuse of "factorise", but that's no reason to slander his intelligence.

@martykane7224 4 месяца назад

Speaking for those of us who aren't rain man, your explanations of the logic is both necessary and enjoyable, and not stupid at all. Thank you for it.

@stumbling 4 месяца назад

I kind of love that these days I am able to name more sudoku setters than professional footballers.

@simonl4523 4 месяца назад

Watching Simon weighing up stopping the video makes me wonder how many times he realizes something late in the solve that he missed, and he turns the camera off so we never know it happened.

@longwaytotipperary 4 месяца назад

I cried seeing Simon so upset. 😢

@AFastidiousCuber 4 месяца назад

I think the said once in a livestream that this usually happens about once a week.

@davidjspooner 4 месяца назад

I feel they should post a compilation of those videos. Maybe on a channel called cracking the simon. Maybe as a stretch goal for the next book.

@brianj959 4 месяца назад

I just love the drama!

@Daymickey 3 месяца назад

I felt so bad for him! Such a kind hearted man feeling so low for no reason! 😅

@emilywilliams3237 4 месяца назад

No despair needed, Simon. Even if you had started with the lower digits, you would still have wanted to prove that 6, 7, 8, and 9 could not go into the puzzle. I love the fact that you are so thorough in your logic - it gives me tremendous confidence that what I learn here is truly useful and will make me a better solver if I remember and apply it. Thanks for this video!

@Scaughdt 4 месяца назад

If you're not popular at parties, the problem lies NOT with you, Simon, but rather with the parties ... :)

@longwaytotipperary 4 месяца назад

@Scaughdt I’ve been saying that from the first time I heard him make that comment! All of the CtC fandom would be enthralled to find themselves in conversation with Simon at a party!

@davidrattner9 4 месяца назад

Without a doubt..has to do with the parties he is all at!!

@davidrattner9 4 месяца назад

@longwaytotipperary you know it! He would be the life of the party with us!! 🩵💙🫠

@longwaytotipperary 4 месяца назад

@@davidrattner9 Absolutely!!! ❤️💕😊

@dinane 4 месяца назад

100% Simon would be so popular at our monthly game nights, attended by people who went to engineering universities and enjoy playing complex board games together while chatting about things like electric car motors and 3D printing.

@TehFilmFanatic 4 месяца назад

Silverscree is me! As soon as I finished the puzzle I knew this was a classic Simon puzzle, and since Phistomefel commented I was sure that you would read the comments!

@BongoBaggins 4 месяца назад

Hi Simon!

@laurasmith2173 4 месяца назад

Simon, to be fair to you, I noticed the five cell cage almost immediately and that the digits in cages had to be different. I got the quintuple but did not get anything else from it. I've learned so much watching these daily videos that I can now look at a 5 star puzzle and find something interesting about it (I still can't solve them though). You are doing great and we appreciate your efforts.

@BongoBaggins 4 месяца назад

To be fair, zero is in the puzzle, and it is in it in its own number of times.

@RichSmith77 4 месяца назад

To my mind, if zero appears zero times, then zero is *not* in the puzzle. Yet you're getting lots of up votes, so what do I know. 🤔

@BongoBaggins 4 месяца назад

@@RichSmith77 Yes. It's in it zero times.

@RichSmith77 4 месяца назад

@@BongoBaggins I don't dispute it's in zero times. That means it's not in. I'm in the Guinness Book of Records zero times. I'm not in the Guinness Book of Records. 😁

@jasonmschleyz 4 месяца назад

Zero is used as a number but has been proven to not exist. It's similar to the number (i) in that you just pretend it does exist and do your math and move on.

@maljamin 4 месяца назад

@@RichSmith77 So its own number of times is just that kind of number, that fulfills a condition exactly by not fulfilling it... truth value is just ambivalent for certain tests. 😅 I'm trying to keep this academic but of course it's silliness.

@dwdei8815 4 месяца назад

Thank you so much for eliminating the 6 as a possibility! I had not fully grasped the box-wrecking implications of its Borg nature.

@bobblebardsley 4 месяца назад

The words "what a writer" will be staying with me for a very long time, thank you 😊 (with apologies to anyone who's sick and tired of hearing me mentioned) 😇

@longwaytotipperary 4 месяца назад

Always happy to read or hear your poems read!!

@GregJonson 4 месяца назад

Literally _every day_ is a guaranteed masterpiece of a puzzle on the channel! Where do all these setters come from?

@glum_hippo 4 месяца назад

Look at all the lovely puzzlers... where DO they all come from? Darning their socks in the night when there's nobody there...

@emisformaker 4 месяца назад

@@glum_hippo Even Valentine's night

@AugustoValentini 4 месяца назад

What I love the most about this channel is that its existence propels setters to make new masterpieces which then boosts the channel's audience, reaching more genius constructors, etc etc

@longwaytotipperary 4 месяца назад

⁠@@glum_hippo❤ the Eleanor Rigby reference!

@davidrattner9 4 месяца назад

@@glum_hippoincluding you...fabulous setter you are and great quip throwing in beatles!!

@acdlite 4 месяца назад

Instant classic. I love puzzles like this where the emergent properties of the ruleset incrementally reveal themselves as you solve.

@danielbreiner9830 4 месяца назад

No one in their right mind would ever dare to call you stupid. :) You're brilliant. Rock on! :D

@Hybridrofl 4 месяца назад

Simon threatening to turn the camera off makes me wonder how many times he's actually done that over the years. Not for a lack of solving ability, just the sense of shame :D

@michaelandersen-kk4fc 4 месяца назад

I think it happens alot. we only see the success. in the last tournament mark did not solve 25% of the puzzles- but on the channel they have 100 % success. so it is a little manipulated

@dolf370 4 месяца назад

@@michaelandersen-kk4fc Mark actually published one puzzle where he failed once. (He made a stupid mistake about 3 quarters through the puzzle, and I am sure he would have found it if he had really tried.)

@J0rdan069 4 месяца назад

@@dolf370Do you know what video that is?

@dolf370 4 месяца назад

@@J0rdan069 Sorry, was at least two years ago, so don't remember what the specific sudoku was. But it wasn't that he got stuck and couldn't progress. He went to the end and discovered he had made a mistake, and if I recall right, he back track, corrected one mistake but still got a wrong solution, and then just gave up and let it be. Not sure, but I think he just mistakenly put in the wrong digit somewhere, so wasn't even a logical error on his part. But, in any case, he did post it as a failed solve.

@user-ox9oo6wp6d 4 месяца назад

I've solved this puzzle few days ago. This is a masterpiece! Edit: I think another way to determine 6789 are not in the grid, is to consider if 6 is ever in the grid, there will be 6 columns contain six 6s. Now because of the 5-cell cage, we know there must at least be a 4 somewhere in the grid, but 4 cannot go to a cell that already has 6 in its column as the column has 6 in it has only 3 empty cells left. That imply that we need 4 more columns in the grid and that doesn't work.

@RyanAtOptimism 4 месяца назад

Oh, very elegant!

@stupidas9466 4 месяца назад

That's how i saw it straight away and saved me those thirty plus minutes Simon had to use.

@Zorae42 4 месяца назад

Why would the 5 cell cage imply there's a 4 if we're allowing for 6's? It could be 12356. He definitely needed to prove that 6 doesn't work (although he did take his time on it, but I attribute that time mostly to talking through his thoughts out loud for our sake).

@user-ox9oo6wp6d 4 месяца назад

@@Zorae42 You are right, but if 4 can't work with 6, 5 would be even worse, wouldn't it? Because 5 can't be placed in a cell that shares the same column with 6, now you need 5 more new columns and that implies there are at least 11 columns in the grid. To conclude, since there is a 5-cell cage, there must be at least 5 different digit in the grid. But if we try to put one of the digit from 6789, then we can at most accompany 3 more digits (123), hence, at most 4 different digits are in the grid. That doesn't work.

@Zorae42 4 месяца назад

@@user-ox9oo6wp6d It takes a bit of analysis of 6 to conclude that 5 and 6 would have to share a column/row. Since it's not immediately apparent if you're just using the 5 square box. You actually have to follow 5 and 6's placement out farther.

@Harry-sp3fz 4 месяца назад

All the comments are how clever you are for finding the three. Simon, and you know this, you are smarter than all of us. It is joy to watch you uncover stuff that I can never do.

@RecreationalCynic 4 месяца назад

86:06. I'm proud of myself for finishing that without Simon's help. It was a fantastic puzzle.

@xerodeus2337 4 месяца назад

37:00 Simon entering into dispair at how long it took him to reach a conclusion... and I'm over here chanting "One of us! One of us!"

@jimi02468 4 месяца назад

To try to solve this puzzle, will you dare When even Simon it left in despair? You glanced the rules and yet despair is nigh Normal sudoku rules do not apply There are some cages, at least not lines Wait, the whole grid could only be nines? A digit tells how many times it can be used... in rows columns and boxes, to make you confused Within a cage, though, they may not repeat And that's all of the rules, isn't that neat? For a novice solver, will it suit The new masterpiece by IcyFruit

@longwaytotipperary 4 месяца назад

Good one!

@bobblebardsley 4 месяца назад

Nice work! 👏

@troatie 4 месяца назад

I was grinning ear to ear listening to the rules written in verse. How wonderful!

@bobblebardsley 4 месяца назад

Thank you 😊

@thorin_oakenshield 4 месяца назад

when you start with the guitar it's an instant like!

@longwaytotipperary 4 месяца назад

Ditto!

@Akatsuki69387 4 месяца назад

Any idea what the song is?

@johnhermann4254 4 месяца назад

Sounded like Paranoid Android from Radiohead to me.

@Akatsuki69387 4 месяца назад

@@johnhermann4254 thanks fam

@MattJWoz 4 месяца назад

Thanks so much for continuing to record and post this video, even after having a moment of doubt there in the middle. This is one of my favorite solves recently, so I'm really glad that this video made it to the channel. I also appreciated the explanation you gave at the beginning. Even if it hadn't wound up being necessary, I think it was a very natural way to begin the puzzle and helped to establish the constraints of the system. Even though I didn't try the puzzle before watching the video, I can imagine that I might have started similarly. In my day job, I teach math to high school students and one of the things I try to coach them to do is to reduce a complicated problem which feels overwhelming to smaller questions that might be easier to tackle and give some insight into the overall structure. Reducing out options at the beginning feels a lot like that and is a good way to wrap your head around a new (at least to me) puzzle type. Additionally, there's plenty of content on the internet that shows the flawless solutions to any number of puzzles or problems. When my students get stuck, they often turn to RU-vid to find explanations of similar problems to see if they can get a nudge on how to continue. At times, they're frustrated that the solution could appear so easy after they've spent a lot of time thinking about the question, making mistakes, retracing steps, and doing a lot of valid work that didn't lead them closer to the solution. The reality is that problem solving is much messier than we like to believe it is and that presenting a solution you already know is definitely not the same task as deriving that solution for the first time. I think it's ok to share the messy work sometimes too, to remind us all that the answers don't just fall out of the sky one day and that others all over the world are working just as hard behind the scenes as we are, making mistakes along the way too. We're just usually watching the presentation of the polished, revised, final product. Sometimes we get lucky or notice something clever early in the process, but that's not always the case and that's normal. Thanks for sharing an awesome solve to a great puzzle and thanks to you both, Simon and Mark, for your ongoing work on the channel which has provided us all so many hours of enjoyment! Cheers to you both from Michigan in the US!

@estherwestbroek 4 месяца назад

I help teach computational thinking in a primary school, and I make it a point to talk about why they did what they did, and when they call me over when they are stuck, I say: cool, let's see what interesting thing happened here and make them look and vocalise. Then they learn and I almost see them grow before my eyes. So I am with you 100%

@MattJWoz 4 месяца назад

@@estherwestbroek That's much the way I approach questions from the students as well!

@Millenassang 4 месяца назад

Guitar intros are the best👍

@valkopuhelin2581 4 месяца назад

I really liked how you started this puzzle by eliminating the largest digits, instead of magically directly finding the three (if that logic had panned out by itself).

@David_K_Booth 4 месяца назад

The photo of Poe's room reminded me of one suggested answer to the hatter's riddle "Why is a raven like a writing desk?" "Because Poe wrote on both of them."

@dolf370 4 месяца назад

Good one. I like Huxleys too: "Because there is a 'b' in both and 'n' in neither". When I recently saw a preface to AiW, it said something about neither flying upside down or something like that, from Carrol himself (and admittedly a post construction). But he seems to also have suggested: "Because it can produce a few notes, tho they are very flat; and it is nevar put with the wrong end in front!" (though some proofreader incorrectly corrected "nevar" to "never")

@jaydenparrott3055 4 месяца назад

I had no idea this riddle had an actual answer. I thought it was nonsense from the Mad Hatter in the animated Alice in Wonderland

@David_K_Booth 4 месяца назад

@@jaydenparrott3055 It's in the original book. You are absolutely right - the author intended it as pure nonsense, but people started overthinking it.

@dolf370 4 месяца назад

@@jaydenparrott3055 It didn't have any answer. He dreamed up some afterwards because so many was pestering him about it.

@andrewdipplecomedy 4 месяца назад

Half an hour in, Simon worrying why he didn't get it sooner ... meanwhile, I'm still sat here trying to work out why 6 and 3 don't work 😅😂

@d4r4butler74 4 месяца назад

Simon, the beginning of the puzzle is where you logically proved that there were no high digits in the puzzle. Yes, I thought starting at the 5 cage would have been more sensible (it proves that there are at least 5 digits), but then there would be people commenting on you NOT proving that there were no high digits. It is a Cracking the Cryptic method of solving - like not using uniqueness - that we have all come to love.

@RedBarchetta2019 4 месяца назад

Simon's discounting of 6 at 23:18 is total bunk. Sorry Simon. Without cages, which you were not considering, you could easily rope 6's and 3's in the entire grid. It was just the end of the argument that was incorrect. The rest was true (the 5 cage thing.) The easy logic is all rows and columns and boxes add to 9. So 126, 135, 234. And looking at the 5-cage, the middle corner cell of that cage must share a value with two ways of making 9. 123 are only possible values there. Fun puzzle!

@jonathancard4466 3 месяца назад

I'm so grateful for you, Simon. It's a big salve for my go to know I had all the right thoughts, even if they weren't in the right order to be able to solve it. I'm so much better at solving these puzzles for having your example.

@hmusic197 4 месяца назад

I love that you went thru all the logic that 6789 can’t go in before getting to 3. I also love the humility. But, never despair-you are helping those of us who are learning.

@LiquorStoreJon 4 месяца назад

Thanks for the Guitar intro, Now to enjoy a pretty sweet puzzle!

@ohmiey 3 месяца назад

your guitar playing is beautiful! i didnt expect to hear one of my favorite songs in the beginning of one or ur videos! so awesome :3

@EmonEconomist 2 месяца назад

This took me 61:58 and I'm really glad I didn't watch the video for any hints because this was so interesting to solve, and I knew I'd regret jumping ahead instead of figuring out the logic myself! It was challenging but so interesting, and not overly difficult (just a bit of a mind trip). Really enjoyed it a lot!

@laurasmith2173 4 месяца назад

Such a delightful solve of a Sortadoku (Sort of sudoku) puzzle. :)

@sfcpudding 4 месяца назад

Fascinating construction here, the break in was quite clever! Really enjoyed this puzzle! Thanks Simon :)

@LavenderGooms 4 месяца назад

Wow. This one was incredible. First thought oh this is weird, then second thought oh it's weirder than that. Then it gets even weirder, and finally becomes just gorgeous. I really enjoyed this concept.

@mirjana72mb 4 месяца назад

Hearing all those zerg swarm terms in a sudoku ish puzzle was a crossover i did not think i needed, but now I do.

@craigthorsen 4 месяца назад

Simon systematically solves sensational sudoku.

@fuxiascholz 4 месяца назад

I was so waiting for this puzzle to be featured! It's just amazing and great fun. You don't need to waste time thinking about 6, 7, 8, and 9 at the start. These are disproved en passant during the solve.

@xdrl 4 месяца назад

great solve and video

@nicka3697 4 месяца назад

Simon you are a genius. Brilliant deductions.

@glum_hippo 4 месяца назад

Really liked the musical intro today! But the puzzle was also worth the visit!

@calebu2 4 месяца назад

Simon: Takes 36 minutes to place a digit, calls himself stupid for not noticing a shortcut sooner. Me: 80 minutes with such craziness a an excel spreadsheet get 75% of the way to my first digit.

@wokkawicca 4 месяца назад

Very gratifying to be able to solve this one in under an hour. I zeroed in on the 5-cell cage with different values and realized every row/column/box could only have either 2 or 3 digits summing to 9, which Simon came later to. Normally it's the other way round, and it was probably a better way to start, but you do have to eliminate the 6 option at some point, so I'm glad he didn't shut off the camera in disgust just because he went that route first.

@timmermansmenno 4 месяца назад

Amazing solve couldn't have done it myself.

@fatha2092 4 месяца назад

Simon going out there to suddenly play a Paranoid Android shocked me how not only having a clever brain but talented enough to play that ❤

@kindlin 4 месяца назад

23:16 I have a strong suspicion that there is a s very straight forward way of proving that. My thought went: IF you have a single 6, you need 6 sizes, per the rules. So at MOST you could have 3 other digits in that set (row, column or box), that's only 4 total max different digits in the puzzle. EDIT: Thus, you can't fill the 5-cell killer box. As discussed in the video, you can't have the case where you stack all sixes in (2) boxes/rows/columns of any given area of the board (to give you more digits to play with in the remaining open cells), as you can't put any digit higher than 4 in a 6-box, as that's too many digits.

@jonaclausson6698 4 месяца назад

I enjoied this very much ❤

@nkorppi 4 месяца назад

Loved solving this one. Puzzle of the year for me. I deduced the 6 to 9 missing, but mainly from looking at the 5-cell cage.

@rentalcustard 4 месяца назад

I saw this one on LMD earlier today and, knew it would appear on the channel as soon as I opened it. My brain wasn't up to the task though, so I'll happily sit back and enjoy Simon's solve!

@rentalcustard 4 месяца назад

Comment was made before hearing a quite splendid Paranoid Android. 👍👍👍

@longwaytotipperary 4 месяца назад

I was supposed to be at a meeting tonight but it’s cold, dark and wet and I’d rather be warm, dry and watch Simon. 🤪

@davidrattner9 4 месяца назад

Way better to be latter then the former...so agree with you my friend 😁

@longwaytotipperary 4 месяца назад

@@davidrattner9 😊

@cavalerul10 4 месяца назад

If you would have stopped the camera a lot of us would have never seen or maybe even resolve this! You are brilliant!

@77kaczka77 4 месяца назад

Minimalistic definition and interesting solution. Wow

@dustinkeier9176 4 месяца назад

@simon, this seems to me like this is just circle rules specifically for column, row, and box. Meaning you can only have 126, 135, and 234. After eliminating 6, you're golden.

@dustinkeier9176 4 месяца назад

I do realize I overlooked 4,5...

@joelstevens5670 4 месяца назад

Crazily clever. Thought I’d broken it at one point but was very relieved to find out I hadn’t as the logic was incredible. Simon was right and wrong about his solve. Right in that you could avoid doing a load of theoretical stuff by focusing on the 5-cell cage first and that it would have made the solve much simpler. Wrong in that everyone probably fell into the same trap to some degree (I went as far as proving the 7s, 8s and 9s as I was caught in two minds) so it certainly wasn’t something to be ashamed of and was actually really interesting (it added to the experience even if it was more complex to consider). Of course, had it not been for the video, I may have given up on my own solve completely. As it was, the reassurance was what then enabled me to hugely enjoy the rest of the solve. So thank you Simon. :)

@F1r1at 4 месяца назад

Took me 50 minutes to solve this, but surprisingly it's not hard at all, it just requires you to think! Beutifull puzzle, usually I don't solve nonsudoku puzzles on this channel, after few really bad tries on fillominoes, but those kind of puzzle I want more!

@adipy8912 4 месяца назад

37:11 That's exactly what I was worried about with that title and the thumbnail: Unnecessary apologizing. I knew you could solve this. The bigger question was if I could listen to you being mad at yourself for several minutes. But luckily you didn't, I could calm down and listen to you solve instead. For the rest of the solve you had many laughs and were proud of youself. That's a sign that you are a human (happy, mad, sad, making mistakes and not least not be able to think of everything at once).

@LiWiPa 4 месяца назад

I would love to talk to you at a party Simon! Only boring people wouldn't want talk to you. You are sometimes my only highlight in a day. Love these long solves

@livedandletdie 4 месяца назад

It was quite interesting to solve. It was truly daunting, but it was truly worth it in the end.

@Koppen8 4 месяца назад

What an incredible predict on the 5-formations!

@HunterJE 4 месяца назад

19:35 While it still quickly breaks down when you start looking at columns and cages I do see one way to make 6s work in the vacuum of the top three rows/boxes that's not considered here-if you "rope" the non-sixes (e.g. 6s in r1c1-6, r2c1-3+7-9, r3c4-9) you can have six sixes in every box and still fill out the blanks with the 3s/1s and 2s without conflict...

@HunterJE 4 месяца назад

(Since Simon's discussion assuming a 2x6 block of 6s misses this - the reason it breaks the rest of the grid even if you "rope" is you're only putting two 6s per column in the top three boxes, which as discussed earlier puts sixes in all six of the remaining boxes and so limits the grid to 6-1-2-3 which isn't enough for the five-cage)

@kindlin 4 месяца назад

The quickest way I saw this, not that I even solved the puzzle myself, was if you DO put all (6) sizes stacked up, similar to Simon, you will need a 5th digit from somewhere, and you can't fit it in, but if you DON'T stack the digits, then it fails again due to Simon's 'infestation' theory. Granted, you do need to think through both of those cases, but that's how my brain organized the information.

@turtlebirds 3 месяца назад

I truly could not wrap my head around this puzzle for the majority of the video, I guess my brain is just too used to sudoku!

@user-hq4sn1mp7r 4 месяца назад

I'm always watching on a gaming console but I had to boot up the PC just to make a comment. It took you forty minutes to get to the 3 and I took about twelve, but I failed to solve the puzzle. The spillage as you called it just absolutely stumped me. The despair was wrong; you should've been elated instead!

@KaitlynBurnellMath 4 месяца назад

Is that a deliberate Starcraft 2 reference? (Infestors/Broodlords)

@fejpjones 4 месяца назад

Re "could I have just put that in at the start": I think there is a way this could've involved less of a runaround with the 6s, but your logic was very well-articulated and I don't think you have anything to be upset about or embarrassed by. (In fact, my own solve took a bunch of circle logic, maths, and a *lot* of backtracking when I realized I'd made a wrong deduction first). 0. The puzzle cannot contain [7,8,9] (trivial, as you explained) 1. A row, column, or box may contain at most 3 different digits, in order to sum to 9. 2. The 5-cell cage forces there to be at least 5 different digits from [1,2,3,4,5,6] and 3 different digits each in r5 and c4. 3. Per 2: r5c4 is a shared digit of any two of the 3-digit combinations that sum to 9, i.e. from [1,2,3]. 4. Per 1: orange and grey being present in b5 forces b5 to be made up of orange, grey, and purple (because orange + grey = 9 - purple). 5. Per 1 and 2: r5 must be made up of blue, green, and orange - therefore, orange must be at least {3} to cover the shared cells of b5 and r5.

@Dotesmite 4 месяца назад

51:17 for me, the break in is somewhat brutal, but the puzzle just flows from there once you figure out what combinations are available.

@Bweigelt13 4 месяца назад

This was an insane puzzle, it seemed much harder than it was at first glance, 29:30 for me, but once you got the break in it flowed together so beautifully.

@cenedrariva4990 4 месяца назад

hurrah!! i solved this one before watchign the vid! i feel so accomplished

@TehFilmFanatic 4 месяца назад

I strongly encourage you to decouple your colours when it becomes useful! As soon as you realised 45 was important, it would have been helpful to decolour the 5 cell cage and instead choose colours for the 45 pairs. Sorry to backseat solve!

@RichSmith77 4 месяца назад

This matches my colouring approach too. (Although, I started by double colouring the dominos in the legs of the 5 cage, since I had a colour for high and a colour for low, but I didn't know which way round they went.)

@nonyobisniss7928 4 месяца назад

I was just celebrating that I beat Simon's time by a full 20 minutes on yesterday's puzzle, then he beats me by 20 minutes tonight. To be honest I'm just impressed I finished this, as I was also very close to despairing. Incredible puzzle that distracted me for 90+ minutes while I'm suffering with a very runny nose and headache/toothache.

@d4r4butler74 4 месяца назад

I hope you feel better soon.

@sprmn14 4 месяца назад

You’re not stupid, Simon. Just know “that [your] place shall never be with those cold and timid souls who neither know victory nor defeat.” Keep up the good work.

@EricDobsonTV 4 месяца назад

The word stupid never came to mind. I had been considering asking if he’s drunk. 😄

@frankjiang1857 4 месяца назад

Finished in 29:46. At first I started off with coloring trying to logic what could go where. But then, I realized it was much easier just to try the actual numbers and everything flows logically from that, because you can see almost immediately what numbers could be in each box, row, and column based off the cages. It was kind of painful to try to use colors to figure this out when just entering the possible numbers made things so much easier. Fun idea and puzzle and nice logic in the creation!

@Gonzalo_Garcia_ 4 месяца назад

22:26 for me. Omg, what a puzzle. Strong contender for puzzle of the year, what a masterpiece.

@woowooNeedsFaith 4 месяца назад

1:07:24 - On which ever row 1 is, the row can't have 2 nor 4 in it. This means on that row box 8 is 333 row! And you can't have 33 on the cage.

@daiarroz3617 4 месяца назад

8:09 I'm infinitely happy for this moment, thank you so much for the regards! It was an excellent birthday for Sol❤ Ps: you said it correctly

@Handel9000 4 месяца назад

incredible!

@michaels4340 4 месяца назад

90:53, brilliant puzzle!

@finalfantom 4 месяца назад

If it makes you feel any better, Simon, I wouldn't have had any idea where to start and I was dead set for the longest time that 6 would have worked, so I'm glad you went through working out that 6-9 wouldn't work

@rhodacious 4 месяца назад

Simon: "I'm so stupid, I'm so stupid" Me oblivious to his plight: "Is he? What has he missed?"

@dog70 4 месяца назад

I'm not going to make fun of you for being slow I'm going to make fun of you for being so self conscious!!! Stop it!!!!

@rickwoods5274 4 месяца назад

52:44 - At this point in my solve I felt it extremely useful to switch the meanings of the colors -- assign one of the colors in each pair to mean high and the other to mean low (then of course making the colors you originally placed in the cage be split pairs since you no longer know which way around they are).

@yagamilight08 3 месяца назад

There's some things to note in this 1. The rules remind immediately of circle rules where we hv constraint of 45 but here we got 9 so we need digits that can sum to 9 2. Immediately can rule out 9 coz cant hv all 9s 3. For 2 digit summing to 9 cant hv 7,8 coz that would leave only 1 way of completing the rest giving only 2 different digits as compared to 5 that we need 4. 3 digits summing to 9 was where simon did the right thing by eliminating 6 From there u can keep thinking of the possible combinations like simon did till the end

@emdiar6588 4 месяца назад

Simon reminding himself NOT to do Sudoku. LOL. Simon mate, just play your usual game and completely ignore it.

@rampantunease6517 4 месяца назад

35:00 min for me I immediately saw we needed a 5 at least in the puzzle from the cage that eats up so much space you can't also have a six so then you need the other small digets... But I wasn't as fast as Simon seeing how that meant the central row was a 3 I fumbled around messing with pentominos until ah-ha! At about 35:00 Simon explains the logic which I had to listen to it twice to understand it well enough that I can now do this puzzle much more logically next time. Lovely puzzle. Lovely video and I changed my colouring to high 45 blue purple digets and low green gray 12 digets. That sped me along later in the puzzle

@kiernanoh 4 месяца назад

I love paranoid android

@rampantunease6517 4 месяца назад

At 42:00 we should realize box 6 is 45. At that point chose a colour for high digit say green. And relabel the digets in row 5 box for as either green high and blue low. Then pick purple as high. Now box six is just a purple green box.. It helps make the colouring easier

@mvansprang5635 4 месяца назад

genius puzzle! just simply that.

@Nathannbo 3 месяца назад

This rule type feels like a meta killer in the way I thought about it

@haraldhultqvist2318 4 месяца назад

It could not be a coincidence that the windows in Poe's dorm room are actual 3x3 Sudoku boxes.

@thebitterfig9903 4 месяца назад

I feel like this would be a really fun style of puzzle to see reused in varying levels of difficulty. The same core rules, but with some given digits, some values for the cages or other abstract clues like dots and lines. Kind of like the sudoku puzzles where you have to color high/low, odd/even, modulo 3, or so forth.

@presgutpela 4 месяца назад

Does anyone remember in which video Simon colors the cells in the opposite colorway than expected? I think he made the garden path green and the garden gray? And some lovely person wrote a verse for it?

@joelstevens5670 4 месяца назад

I don’t recall which video but I do recall who wrote the verse. Orenotter regularly writes limericks on the sudoku channel and I greatly enjoyed that one myself (‘it really was quite a strange scene, for people would say that his hedges were grey and all of his pathways were green’).

@presgutpela 4 месяца назад

@joelstevens5670 thank you!

@jan_silas 4 месяца назад

I got the right amount of numbers per figure (1 -> 3 times, 2 -> 6 times) and the 3x3 configuration (3x 1-3-5, 3x 4-5, 3x 2-3-4) but I couldn't figure out if there were any really restricting limits on where to put them. Really just guessed numbers for two hours or so

@benjaminrealy5661 4 месяца назад

23:39. First eliminated all potentials except 1-6. 7 and 9 super easy. 8 fairly easy. Sampled if 6 could work but realized quickly it couldn't. So digits were 12345. Since rows columns and boxes had to add to 9 (based om counting 1 of each 5 etc) the row (etc) was either 135 45 or 234. Used that to figure out which cell in 5 digit cage was 5 and then so knew 2s couldn't be in any row column or box with the 5. And used process of elimination to figure out rest. The top boxes were toughest

@andersama2215 4 месяца назад

Reminded me of combinatorics and the pidegon-hole principal. 9 forces the whole grid to be 9s, 8s given the rule forces 8s in every cell which means the only number which can possibly appear is a 1 in every cell, same thing happens to 7, 7s will force 7 and 2s. These pretty obviously result in a conflict with the cages. Things get tricky when working with 6 and on, then it's a bit more sudoku like. Probably intended, but "if" a digit is present it appears exactly its own number of times means you can is would mean that each cell's digits sums to 9 (same for the rows and columns). So you can pretty quickly determine some combinations of possible numbers: [9] [1, 8], [1, 2, 6] [1, 3, 5] (note we can prove results like 1,4,5 cannot be in a cell, row or column together because the numbers would take too much space, similarly 1 and 4 can't appear together because the remaining sum can't reuse numbers to sum up the remaining 4).

@evanbasnaw 4 месяца назад

Simon seems very ready to nerf infestors and vroodlords wherever he finds them. Sounds like Terran problems to me.

@mr_trever 4 месяца назад

Simon, why would anyone think you of all people were stupid? This was a brilliant solve, and even when you first claimed the 3, I couldn't see it. This is a puzzle I would never be able to solve.