No Digits. No Clues. No Hope?!

[@felisyaalaudina5140]

i was trying to find something that would make me fall asleep, so i thought a man solving a sudoku puzzle for one hour would make me sleepy. i thought wrong

[@haisy_]

it’s 2:35 am i thought this would put me to sleep too, turns out i’m up an hour later than i thought i would be lol

[@charleyweinhardt]

yep I went to bed at 6 in the morning and dreamed of all these people being stuck in sudoku boards, it was wierd, I kept waking up turning over expecting to break the happening in the next dream but everybody kept ending up back in the grids. 😐

[@Jhonny-wm5ud]

lmao

[@dylanmill339]

Its 2:26 and i thought the same

[@AbnerRynjah]

Indeed, it was a beautiful one hour.🤭

[@Hi_Brien]

I'm just waiting for "normal sudoku rules do not apply"

[@upanshulakhani6221]

everybody gansgta until "normal sudoku rules do not apply"

[@evrodrill]

@@upanshulakhani6221 everybody imma do a app in 15 years where normal sudoku rules do not aplly just wait on this screen for 15 and die and then see my app

[@goplayer7]

"a single given digit causes normal sudoku rules to be broken, such that it is repeated in the row, column, and box. normal sudoku rules apply to all other squares"

[@sv_an]

@@evrodrill асен асенов хпхпх жду приложение

[@TrackpadProductions]

"Normal Sudoku Rules Do NOT Apply" is literally the title of one of CTC's videos

[@idanshemesh3905]

The sound Simon's keybourd makes whenever he puts down a digit is so satisfying

[@DerekReznik]

That's a Mechanical Keyboard. Usually your local office supply store carries some nice ones.

[@lukelawrence5323]

Sounds like just regular cherry reds maybe, most likely linear tho

[@YazzMusicOfficial]

Yesss

[@ryan225360]

I wish it was an MX blue…lol

[@ryan225360]

@@lukelawrence5323 they’re Logitech G browns, I’m pretty sure I have the same board.

[@j4v4x]

It's fascinating to me how easily I can follow your logic, Simon, and yet how it would never in a million years have occured to me on my own. Brilliant solve!

[@kathyjohnson2043]

Always

[@Padraigp]

Im amazed. I cant even do simple soduko for children. Im delighted with the logic of it. Ive always hated numbers but loved algebra when it had no numbers in it and this reminds me of that feeling. Go brain! I wouldnt logically do this myself however i d be totally lost.

[@jestfullgremblim8002]

Yeah, reminds me of the Sherlock Holmes books

[@mirjanbouma]

​@@Padraigp perhaps I'm stating the obvious, but with regular sudokus you can definitely use letters instead of numbers. Just in case that will help you. 😊

[@Padraigp]

@mirjanbouma pH no that is not obvious to me at all I cant even imagine how that works? Like just replacing numbers with letters a b c or do they make words? 🤔

[@aggelosdr2818]

Thanks for having me in you channel once more. It's been a long time and it still feels amazing to see a puzzle of mine being solved here. And thanks a lot for all the nice words. I am really glad that you enjoy solving it. And because Simon asked, it actually took me 3-4 months to set this puzzle, since the original idea. A long time, with a lot trying and failing that finally paid off. Thanks all for your kind comments. ~Mesmer

[@Parthena_Ostambasidou]

Congrats 💕

[@Styku]

One of the best puzzles on this channel!

[@azrobbins01]

Absolutely amazing! I wouldn't even know how to get started setting a puzzle like this, much less solving it for myself. Thanks for making the puzzle, and making this video possible.

[@brettaspivey]

Brilliant puzzle, a work of genius, I loved solving it

[@livedandletdie]

That was one of the best hours spent in my life, it was like a little treasure hunt, finding each cage total after another and marking it down.

[@weskingston264]

"I enjoy reading the comments; especially when they're kind!" What kind of absolute monster would leave any comment that's less than kind on this channel? Simon and Mark must be two of the most lovely and brilliant logicians I've ever had the pleasure to come across. Shame on those (thankfully, few) nasty folks!

[@GeekOfAllness]

People who are embarrassed that they couldn't solve this in a year, let alone an hour? Not that it's a good excuse, but that would be my guess. I know this would have taken me days to solve on my own, if I didn't give up. Seeing it solved is beautiful to me, but I suspect for some it's perceived as arrogance.

[@AbnerRynjah]

@@GeekOfAllness i know what you mean this one was a real treat as well as therapeutic.😁

[@beeble2003]

"What kind of absolute monster would leave any comment that's less than kind on this channel?" Pretty much any KZbin comments section is going to lure some bleep-hole out from under the rock where he lives.

[@yolumyolum4200]

@@beeble2003 clean your mouth when you are finished

[@TPH250290]

Simon's logic astounds me sometimes. He pencil marks all the possible 2s and then looks at cages that don't have a pencil-marked 2 to see if they can be 2-3-4 cages.

[@marcosharlequin]

haha - similarly on 4s, just as he was filling them in, and there were two more to go in boxes 2 and 3, he says "well thats not getting anywhere, lets move on" Thats the trouble with live solve, it is open for all to see. We all do it and forget about it straight away

[@Timlagor]

It seems weird that he has these odd oversights while the rest of the time making amazing observations and leaps of logic without even noting anything down. I did manage to solve one of these (MUCH slower) with only a smidgen of help that I might have got on my own if I'd applied myself a bit longer but there are usually are least three points in the puzzle I get completely stuck and watch the video to discover I was never going to work it out. @@marcosharlequin

[@sirgeremiah]

@@marcosharlequin For sure. The number of times I've noticed something I could have solved 15 minutes earlier...

[@sirgeremiah]

@@Timlagor I've solved a few of them on my own, then watched Simon's solve, to learn that I don't know a technique that would have made it easier. And then there were times I gave up after staring at it for a while and not making significant progress, to learn I simply didn't know a technique or theorem that was necessary.

[@reconnect1857]

23:38 "Fancy doing sudoku in a sudoku puzzle" made me laugh so hard

[@simonkreitner2750]

I have never thought that I would be sitting in front pf my computer at 5 am, watching a man solving a sudoku for an hour. And I wasn't able to stop til it was finished. thank you

[@iiAyJayo]

After having binge watched dozens of your videos, I now do Sudokus in a British accent, so thank you.

[@sirgeremiah]

"Bobbins" is now a standard exclamation for me.

[@EternalPhoenix]

Here’s to the people with the brains to MAKE these puzzles, and those solving them as well, absolute insanity

[@jovi_al]

Thanks for using my intro! It was a lot of fun to make-- it initially started as a joke on the Discord server, but I then realized I had the tools to make it... never did I think it would be heard in a video! Thanks Simon (and fantastic solve)!

[@FlintySudoku]

I think you've managed to make everyone's day - haha.

[@anidleteen]

Absolurely made my day!

[@davidrattner9]

Love it!!!! Well done !!!

[@jamese4336]

Thanks for making lots of people smile. All I can offer is a single like.

[@SuperPlienie]

You are amazing! Thanks so much for creating sush a briljant intro

[@timdunkley9173]

Astonishing that Simon managed that without even writing a list of possible cell sums.

[@zahidshabir4038]

I was hoping he would just open up notepad or Microsoft Word or something and just write every possibility and either highlight or delete the one's he managed to find which is what I would have done but I am not as good as Simon at some of these crazy rule set sudoku puzzles especially if there is little or no digits

[@ericpraline1302]

It seems to be against his religion to use Notepad or Excel.

[@Icza]

I was thinking part way through that if I were trying to do this on paper, I'd have all kinds of circled word bubbles outside the puzzle with swarms of arrows pointing to cages. That was if I could get anywhere at all with this puzzle which I doubt I could have.

[@RiksK15]

@Tejesh Patel Do you know which video it was, or how to find said video?

[@B.Ies_T.Nduhey]

But... that's not necessary...

[@digitalk1llraymon448]

Me: struggles constantly with 8-9 starting numbers. Simon: Answers a full puzzle with 0 numbers on the board.

[@everope]

The extra rules help

[@Homer_Simpson248]

@@everope ik but it’s still really impressive

[@emmmaplays]

i love how half the comments are people amazed with this skill, and the other half are people surprised that they are still up at ungodly hours of the night watching a british man solve a sudoku puzzle

[@ragnkja]

Mozart had a sense of humour, and would probably be cracking up along with the rest of us.

[@justanotherhobbit7215]

You fool! You must be new to the time travelling shtick right?

[@lesteferanse]

I doubt he'd even hear the difference 🙉

[@Peytonthefeyton]

@@lesteferanse why not

[@russellbarnett7606]

@@lesteferanse I think you’re thinking of Beethoven

[@lesteferanse]

My bad, I totally mixed them up but still made me giggle a bit.

[@StealthAngel667]

That has to be the least confident "do have a go" I've ever heard, and for good reason.

[@jestfullgremblim8002]

Lmaooo

[@brettaspivey]

No digits and no clues is a lot more than we usually get here

[@andrewgrant6516]

When I were a boy, we had to solve t'sudoku without a grid! Kids today don't know they're born.

[@LuvY0urs3lff]

why did this get me so badly lol

[@jestfullgremblim8002]

These comments are awesome lol

[@Gredddfe]

The amount of raw information you can keep in your head is amazing. I would need to keep meticulous notes regarding which cages could hold which values, which number combinations are possible for each cage, which cages have already been completed. There's simply no way I could keep that all in my head and continue in my stride.

[@oisyn-]

So much this. I solved this puzzle myzelf after watching Simon for a couple of minutes, but I used notepad to keep track of all the cages I already found and I had permutated all possible digit combinations for each cage, which I then stratched off after it had become clear some were no longer possible. I would've completely lost track without my notes.

[@guanjiewang8002]

17:42, Simon: 'I am getting confused now.' Well, I already confused for 17 mins...

[@kamerstoel1023]

Your excitement, enthusiasm and just sheer joy in completing these puzzles is absolutely magnificent! Both followable, quick and also leaves room for us to spot things earlier than you do. Never really did much puzzles in my life but you single handedly made me fall in love with all sorts of Sudoku. Can't thank you enough and hats of for showing the beauty in puzzles.

[@ignaciotorres5028]

you are one of us now. One of us! One of us!

[@kriszin5175]

For some reason this puzzle felt a bit like the miracle sudoku, but with cages. It was quite mesmerizing to watch

[@michaelhaugh4834]

It’s a good comparison: there’s an elegance to the ruleset that lets you work off very little given information and it leads to some crazy conclusions at times.

[@Faktor13]

The Nori Niro Intro was absolutely brilliant.

[@herrgado]

Am i wrong or have I already seen you commenting on Martin Fencka's videos?

[@ragnkja]

The ending is even better

[@matsze1992]

Damn i watched it on x2 speed and almost died of laughter while drinking tea xDDD

[@thorbjrnhellehaven5766]

Totally agree, but I don't think I want it to be the default intro for future episodes. But please use it for future nori-nori episodes :-)

[@jestfullgremblim8002]

​@@matsze1992bro lol

[@Sylocat]

I figured out what the break-in would be almost immediately just from the ruleset (mainly just because of how many of these puzzles I've watched, I'm wise to the common tricks by now), but when I realized that actually doing the puzzle would involve keeping track of which cage totals I'd already used, I chickened out and decided to just watch Simon do it instead. So I feel both proud and ashamed at the same time.

[@MLWJ1993]

No need to, I was in the same boat... Looked approachable, decided to not do it after finding out I had to keep track of totals 😆

[@moonglum101]

You should rename to Chicken Cube, shame on you! :)

[@tobiaschaparro2372]

When you were doing all the sums at the beginning, and you _didnt_ pull up a calculator... What an absolute boss move

[@schoo9256]

I've never done a killer sudoku but after I got 10 minutes into this video I started to see the pattern and couldn't resist this challenge... it took me 6.5 hours. When i watched the entire video it was amazing to see you make logical deductions so quickly, when it took me hours to discover they existed! Looking forward to shaving my time down.

[@analauramarangoni2866]

omg Simon you just got a new fan!!!!! i'm a brazilian mathematician, living in portugal and sudoku is literally the only thing that really calms me down. the way that you get envolved and make us understand every single step is just phenomenal. i have no words, only feelings!!! thank you for that, really.

[@AfonsodelCB]

Great puzzle, it's extremely rare to see a video on this channel with over 1 hour yet Simon doesn't get terribly stuck, the pace was very constant. Well done!

[@spencermcfarland0]

“Well now what do we do? More sudoku?” Is my new catchphrase

[@agustinalucia9762]

My grandfather loved sudoku puzzles. If I had discovered your channel earlier, I would have shown him these amazing challenges. Now, I'll do my best for him by playing these sudokus because that way, I can remember him and have fun at the same time. Thank you very much for keeping me close to him.

[@TacioMedeiros0]

Really love the concept. If sudoku is about filling all the cells with the digits 1 to 9, having cages with unique consecutive sums feels like it's a meta-sudoku.

[@april_ac1216]

Hello! I'm 23 minutes in, and omg I love you. I have never actually understood sudoku, and have never had an interest in it beforehand. I also have no idea how this ended up on my recommended, but seriously I am loving every second of this! Your little smile when things start slotting into place is so sweet, and I'm genuinely getting hyped when you work the boxes out! You're so intelligent and I feel like I understand what is going on, despite this being a unique sudoku game! Fantastic video, will continue watching despite it being almost 2am 😁💕

[@squirenonny]

It's such a joy to try these puzzles along with the video. I'm by no means a sudoku master, so this one took me 3 hours and about 4 times of popping back over here to see what Simon saw that I hadn't, but even if I couldn't do it on my own, it's a fantastic way to learn.

[@pbsmoothie7281]

The logic to get this puzzle started is God tier and inspiring to really critically think about the information supplied and work methodically to get going. Marvelous!

[@ritwikgupta1558]

Simon missed that the 3 could not be in the 27 4-cage cell, but still found a completely different way to solve the puzzle! Loved it.

[@petrichoreevee6224]

Here I am with adhd and absolutely unable to maths in my head, and you breezed through this. I bow to you sir, well done. Well done indeed 👏🏻

[@joeyhemlock]

Since you asked for an easier way to disambiguate the 16 cage: Once you narrowed it down to two cages at 49:26, you know R7C4 can't be a 4 (because the 16 cage needs a 4). This means that R9C4 is a 4 and the cage in R9 can't be the 16 because R9C3 can't be a 5 or a 6. I loved watching this. You're very entertaining and a great teacher at your thought processes.

[@heathermichaelson6957]

I love that at one point Simon says "I have to be careful, if I miss one, then it will completely fall apart".... and that was literally what had just happened to me. Stupid 14.

[@loubfroeschli8684]

Me: I'm not rewatching breaking bad with you, I already know how it ends and the episodes are sooooo long Also me: watches hourly long videos of a guy solving Sudoku

[@RenShinomiya121]

Me: I can't really watch anime now, because reading manga is faster and sometimes arcs just went on for too long while it's a breeze in the manga. Also Me: Watches people solve sudoku for more than a hour.

[@tobeymaguire647]

@@RenShinomiya121 same

[@josepha377]

Sudoku is more interesting

[@doreshnikov]

On ~52:05 there is an alternative way of getting "6" in (4th row, 6th col). There is a pair of (5,6) in two red cages. They are different because of sum. Also in the first column there is an intersecting pair of (5,6). Which means that the cells marked with (5,6) in (5th row, 1st col) and (6th row, 9th col) are equal. By sudoku the same equal value in the middle box should be in 4th row, but there is only one free cell that can't have 5 in it = all of those 3 cells are "6".

[@okelise]

you’re such a genius! your train of thinking to get your first two digits at 9:30 was amazing to watch. it took me a while to keep up and actually understand what you were doing

[@Crocodile_Appreciator]

Proud of myself for spotting this: Simon figured out early on that the 56 in the red cages was a pair. That means that the 56 in r5c1 must be the same as the 56 in r6c9. So r4c6 must be the same 56 because it's the only cell in that box that doesn't see those identical cells. Later, he rules a 5 out of r4c6 using the 57 pairs above, making a 6 placeable early on in a few cells at once. Not sure if that unravels the puzzle better than Simon's logic without it, but it helps!

[@Draddar]

Nice one. This or the 23 cage logic Simon did was the part I couldn't get through. Your's seems a lot cleaner to spot during a solve.

[@jamese4336]

You're right. It allows you to realise that the 6 in box 9 is in column 8, which then puts a 6 in R1C7, a 3 in R1C9 and R7C7, then an 8 in R7C8 and a 6 in R9C8. we can use this 6 to confirm that the box in row 9 isn't the 15 total. Great spot.

[@KinkyTurtle]

Thanks, I needed this!

[@andrewzywicki2745]

I got into watching these videos because the sound of Simon's voice and keyboard are super calming, and help me relax. I have even fallen asleep to a few, but I have to say that I was intently watching through this whole hour! Amazing solve, and amazing puzzle.

[@dookdevries8848]

That was beautiful! And I took comfort in seeing that you can get your heart - almost - broken by puzzles too (59:06)

[@ScorpioHR]

I have no idea what's happening here, but seeing his excitement when he progresses further makes it look like a hoot!

[@PeteBaldwin]

I never thought I'd sit here so a solid hour and be so invested in someone solving a sudoku puzzle... My wife came into the room expecting me to see me watching football because I was shouting at the screen that you hadn't spotted that a cell could not be 5 when I had. "You're shouting at a guy playing sudoku. What the...." she said. I think I agree with her :D

[@TommyT067]

Even if I played this video at the slowest possible speed, I would still not be able to catch up with you. You are a mastermind Sir!

[@glum_hippo]

Excellent puzzle, it required some real sleuthing! Took me 74 minutes I think it's rather amazing that this is not only solvable, but it's designed so that you can just about do it without having to keep track of the elapsed cage values in a notebook... since you have to find the extreme values and work your way more or less to the middle. Gorgeous!

[@danielrhymer1762]

47:12 to solve! Enjoyed that a lot with it being very maths heavy. Got the general break-in almost immediately and was then able to slowly pluck off the totals from low to high 😃

[@charleslynn7420]

This is the second video of yours I’ve seen and this the second time I’ve ever considered that people would set extra rules for a sudoku puzzle and my mind is utterly warped trying to wrap it around this puzzle. What a joy to watch!

[@TheMeanderingduck6]

I got as far as realizing the cages had to be 3-28 and plunked in two 1s. And then I gave up lmao

[@ragnkja]

I got two more 1s, as there are only three two-cell cages, and one of them cannot contain a 1.

[@jonhansen9622]

Same!

[@violetasuklevska9074]

You know Simon has been giving Mark a hard time, but the Goodliffe pencilmark for the greater than sign has actually prevailed near the start of the puzzle. Still trying to solve, but a fun remark down the road nevertheless.

[@AGMS594050]

Has to be one of the greatest puzzles I've seen, up there with the best for pure beauty and flow.

[@jeffersonroth]

Mesmerizing! 41:00. Once identified I had to find the numbers in order (10 >> 11 > 12...) I could identify them really quickly :)

[@Sarahr98998]

This was fascinating. Never thought I'd make it through the full hour, but I was hooked!!

[@beeble2003]

To do the digit summing around 8:20 with less thought, the sum of the integers 1, 2, ..., n is n(n+1)/2. This is closely related to the pairing-up argument that you use (you can see that in the n+1), but a faster way to see it is that you're summing up n numbers and the average of those numbers is (n+1)/2, so the total is n(n+1)/2.

[@100greggyt]

What a puzzle! Was able to solve it in 90 minutes so definitely wasn't easy. Possibly my best solve to date without taking any hints from Simon or Mark.

[@FetnerVideos]

I was able to solve it in 100 minutes, but only after finding myself with a messed up puzzle after 140 in my previous attempt. And I also feel it is my best solve. This one and the thermo tree are my two favorites that I solved from the channel.

[@chughes156]

Effectively the same solution at 8:00, but faster, is to use the formula that: The sum of numbers from 1 to a positive integer n = (n/2)(n+1) So (the sum of your 2- and 3-size cages) = the sum from 3 to 24 = (the sum from 1 to 24) - (the sum from 1 to 2) = 12(25) - 1(3) = 300 - 3 = 297. Your smallest sum of 4x 4-size cages is easier to pair (just two pairs), though just for fun I'd add the 25s to 100 then sum the remainders so 25 + 26 + 27 + 28 = (25 x 4) + (0 + 1 + 2 + 3) = 106. Your largest sum of 2x uncaged squares is therefore (405 - 297 - 106) = 2, identifying both singleton squares as 1s. I can't think of any sudoku I've previously seen with a more satisfying first two placed numbers!

[@chughes156]

This final step hinges on (the sum from 1 to 28) = 14(29) = 404 being just 1 digit less than 9 x (the sum from 1 to 9) = 9(4.5)(10) = 405, which feels like an arithmetic observation waiting for a sudoku puzzle, rather than vice versa!

[@amoswittenbergsmusings]

The CtC canon is expanding by the day. The ode to Nori-Nori is a superb addition. Today's offering, numerical as well as musical, was worth the earth-embracing outro. I can go to sleep in peace with the world.

[@MrsGov85]

Your shock in the beginning when you realised you would have to add up all of the cages to figure out the 2 lonely cells had me cracking up, your reaction was genuinely funny - but then you found the easiest way to do the math! Completely amazing!! I always learn something watching your videos :)

[@ryang4335]

That was such a joy to watch! The hour honestly flew by. Great logic, loved the concept and you did a great job keeping up with all the different totals - brilliant!!

[@brycepowell6639]

My brother and I solved this together after 3.5 hours. its amazing that our solution and reasoning is almost exactly like yours. There really is only one path through these puzzles

[@alangbaker]

Time to change the software to allow entering cage totals!

[@dudbike]

Shouldn't be hard as they can already enter them in when putting in the puzzle.

[@lisbetho6796]

He already can. Just place the total in the middle and the digits in the corners. Tracking solved.

[@glennmelven3414]

@@lisbetho6796 What do you do with 11, 22, 33, and 44?

[@lisbetho6796]

@@glennmelven3414 I didn't think of that, sorry. But with the rest in place its easier to track at least :)

[@joadbreslin5819]

@@glennmelven3414 Or any total where the digits are not in ascending order, for that matter.

[@Kornreis]

I have given up trying to comprehend everything you say in your videos and also everything you don't fully explain. I still get some of it and realize how much practice you have in sodoku and the genius behind it and that is enough for me to keep watching.

[@nmgaro2156]

The whole thinking at the beggining plus the "405 secret" to get the first two 1s to start with, THAT WAS AMAZING!

[@adelehare8495]

i've been doing ctc puzzles for several years now and i wanted a challenge today. this is the first puzzle with a video over an hour that i've successfully solved without any help. huge milestone for me. this is probably one of my top five favorite puzzles ever. such a unique concept. i loved searching for the cage totals one by one

[@Coyotek4]

I've been struggling on my solves as of late, so finishing this mathy puzzle in 44:35 really hit the spot. Nice puzzle!

[@alcurtis93]

Nice work Mike. Not an easy task!

[@pmsteven1]

Brilliant! I did the puzzle before watching you do it. It took several tries with a notepad by my side tracking all the numbers used and valid remaining combinations, and you just pulled them out as needed by magic. Your memory and logic were near perfect. I only noted a few times when you had a slightly detailed recognition. Your reaction was so perfect when you briefly thought you hadn't a place for the 789 cage. My first attempt I convinced myself that the 789 was going to be the x cage just for symmetry and beauty and must have made a logic slip to justify it. So my OMG moment at the end was when I realized I had actually screwed it up. /: Thanks so much.

[@debelaysek]

I will never understand why thumbs down for masterpiece like this. Fantastic puzzle and solve. Just beautiful.

[@66Morti66]

Man that one was tough. I had the idea with the 2 remaining cells rather early, but disregarded it immediately, because I thought that this would be too insane and I didn't want to do the calculation in my head. Took me 30 minutes to return to this idea, but oh well. Took me 93 minutes total, very nice solve by Simon. :) As a side note, to quickly sum up all the digits from 1 to n you can use (n*(n+1))/2, in this case it would be 28*29/2 = 406, from which you still have to subtract the missing 1+2 cages.

[@Draddar]

Nice puzzle. I feel despite the video length it's quite solvable for the most part. The break in isn't awfully hard considering information we are given and then just have to go through it systematically and keeping up with all the cage totals. Only really got stuck at the 15 cage, after that it's again doable - slowly but surely.

[@danielrhymer1762]

Agree having solved it. The break-in is fairly intuitive if you’ve done CTC puzzles before. After that, I found the hardest bit was probably keeping track of the used totals

[@articuno3448]

I never would have guessed an old british guy doing a sodoku would entertain me this much

[@nurilee16]

LOOOOL the intro omg STOP MAKING ME THINK YOU'RE SAYING MY NAME

[@csehestedt94]

Most people lose their minds on puzzles of this complexity but this man admires the craft and work I love everything about it

[@ajaxmajor]

some say simon is still adding 4, 5, and 6 to 12 to this day

[@charleyweinhardt]

right at 50:00 he's calling the 15 12, but nvm that, he accidentally finds the solution thinking the bottom is line has the 645... or am i wrong? ?

[@GeekOfAllness]

@@charleyweinhardt I heard him make the mistake, but I'm thinking it was a verbal error, not a mental error. I saw him do that on another puzzle and he had it right, but said it wrong.

[@dawncrime3121]

Omg he said it again in 57:20

[@nancymckenzie-adams8005]

I thought I was going to fall asleep but then knew I couldn’t because I didn’t want to miss the solve or the process of it. Also love when he says, “oh I do know!” ❤

[@PeterWTaylor]

I'm beginning to understand how Alan Turing cracked the enigma code.

[@holliswilliams8426]

The Enigma code was first broken by a team in Poland under the leadership of mathematician Marian Rejewski in the early 1930s. In 1939 due to threat of Nazi invasion the group sent their results to the British government, who set up a group under Turing, but I'm not sure you can say ''Turing cracked the Enigma code''.

[@StormForthcoming]

@@holliswilliams8426 🤓🤓🤓

[@hannahbentley4303]

@@holliswilliams8426 Regardless whether what you say is true, Turing still managed to create a machine which could solve the enigma code itself

[@FetnerVideos]

Solved this after a combined 4hrs. First 140 minutes led to a messed up puzzle, which I restarted and then it took another 100 minutes to complete. And you know what, I'm proud of myself.

[@jamese4336]

42:21 for me. I wouldn't have been able to solve it without watching previous videos. It gave me the courage to work out how the restrictions worked on the puzzle as a whole and to build up through the puzzle. Now to spend another hour on the solve video to see whether our solve paths matched. 😀

[@jamese4336]

Very similar paths at the start. At 24:50, you can go further with the 4s as you can rule it out of the length 4 cage in box 3 At 27:00 you can place the 4 and 5 in row one by considering the possible totals of the 4 cage in box 3. At 30:00, I just started going up the cage values without worrying about tricky sudoku deductions until I got stuck, which was hard work, but paid off and probably was a bit faster. One thing I spotted is you can look at 3 totals in a row as 6,7,8 need to contain a 1. 9,10,11 need to contain a 1 or a 2 etc. 41:30, that's how I was feeling for half the puzzle. 47:44, I broke through by considering what could be a 16 or 17 as they also need to have one digit at most 4. The R6C7,R7C7,R7C8 box can't be a 17 as you end up with a 6 in R6C7 and a 5 in C9 in box 9, invalidating the 56 in R6C9

[@TheBrokenRobot]

I don't know how or why this video was suggested to me but thank you KZbin gods. This is so fascinating and satisfying to watch.

[@scruffamudda6306]

My word! Took me 3 hours (without any help from Simon) but I did enjoy it. What a puzzle!

[@anneharrison1849]

my timer says 100minutes, but I did go to the loo and have a drink...

[@Morphyan]

It boggles my mind how someone created this, and it was an absolute pleasure to watch your mind work at sorting it out!

[@Sujisan4]

That's got to be the best intro to a video that I've ever seen.

[@MortlachNL]

Just got an internet upgrade and now have a blistering 25Mbps connection. Can confirm Simon is just as entertaining and witty in 1080p as he is in 360p. Puzzles are still as difficult though and I am starting to worry I might have been a little cocky when I backed the Kickstarter Sudoku book. They do say the Overconfidence is a slow and insidious killer...

[@isabelamacedobellsita8394]

I almost died laughing cause of this intro. Genious!

[@ilanknafo]

Exactly my reaction hhhhh

[@spilk84]

Rest in peace.

[@psiphiorg]

I don't click the thumbs-up icon often (on any channel), but a Nori Nori musical intro prompted an immediate Like

[@pandalla114]

@@psiphiorg I always like unconsciously lol

[@fybso3057]

Every couple of months an even crazier video of you gets swept into my recommendations. Delightful

[@Legoman791]

I cannot imagine the look on people's faces whose first Cracking the Cryptic video ever will be this one, and then hearing that intro.

[@tenshiumi9299]

It was my first video, i do sudokus with my caffe on the mornings... this dude is unbelievable. But i don't get the joke with the intro

[@Legoman791]

@@tenshiumi9299 The joke began with this video: kzbin.info/www/bejne/hHS4p5h-rd6NkNE . It was a sudoku mixed with a puzzle called "Nori Nori". And simon said "nori nori" so many times in that video that it became a running joke on the channel for a while.

[@zenziryx3242]

My reaction/thoughts within first 7 minutes of video: the sum of 2-digit cage can be 3

[@anneharrison1849]

I did this without assistance, which makes me super happy seen as it took an hour.

[@SourceOfBeing]

8:20 - A way to find the sum of numbers in the sequence "1, 2, 3, ..., n-1, n" that I find easier is the formula "(n*(n+1))/2". So in this video, that would've been (24*25)/2 = 600/2 = 300.

[@JaymanOttawa]

This is my favourite puzzle break in to date! And that is saying something considering all of the amazing puzzles featured on this channel. I sure hope I can finish solving it... :)

[@netkissa]

I tried it on my own from 20 minutes point onwards. I coulnd't do it. Had to watch the whole video. Have to admit I haven't done many sudokus with those separate cages. I came by this video when someone else shared it. I really enjoyed watching it and will be watching more of yours from now on.

[@mercut10]

24:15 day two of either 3 keeping his religion, or Simon forgetting to announce it 😢

[@tiemen9095]

51:00 I deduced the 456 cage in a different way. - The 4 cell cage in box 9 must have a 7 in it (because row 9 must have a 7) meaning it is 3789 or 5679. - The 3789 does not work because R5C1, and R6C9 must be the same value, and must therefore repeat in R4C6, they are all 6. Once R6C9 is a 6, 3789 is broken because column 9 does not have a place for a 5. - Therefore, the 4 cell cage is 5679 and the 6 is in R9C8, ruling out the 456 cage in row 9. I am not sure it is an "easier" way but there were different solution paths it seems. As always, thanks for the puzzle and the nice video!

[@ainsleyfan6926]

I love how you kept mixing up 12 and 15 the entire vid

[@seanmcdonough2683]

Beautiful concept. Felt like it was getting tedious around 13, but kept going. Took me forever to get 15 sorted and made the journey worth it.

[@richardfarrer5616]

Knowledge bomb: Apparently 4,5,6 triples now form a 12 cage!

[@haraldpuester6205]

That is the angle share of the cage, reduces it from 15 to 12 ;-)

[@stevieinselby]

Found the break-in straight away, made reasonable progress until I hit the point where I needed to find a 15-cage and there was nowhere that it could go. Turns out there are more ways of making 27 in 4 cells than I had realised 😒, and ruling a 4 out _doesn't_ mean it has to be 3-7-8-9 ... unwound to there and went with 5-6-8-9 and ground my way through to a solution. No idea what the final time was, and I did need to watch a bit of the video to realise that it might be the 27-cage that was wrong. Absolutely incredible puzzle!

[@shadow1233679]

Video Title: No Digits. No Clues. No Hope?! Simon: "Do have a go." Me: "No. I don't believe I will."

[@ShardyRedVH]

Solving this puzzle gives the same kind of satisfaction as from the Miracle Sudoku. So much fun!