Me participating in the creation: 'Normal sudoku rules apply'

@castlinok

3 жыл бұрын

why did I laugh so loud at this one? lmaooo

@evetheeevee2977

2 жыл бұрын

Same lol

@maljamin

2 жыл бұрын

Just gorgeous, how the boxes rows and columns interacted!

@EchoMirage72

Жыл бұрын

It was just brilliant how you laid out the grid.

@biaberg3448

Жыл бұрын

😂😂😂

One of these days, we're just going to get a puzzle where every cell has a different rule.

@PurpleSidewalk1

3 жыл бұрын

Working on iy

@drunkshinx960

3 жыл бұрын

Oh boy...

@leporid257

3 жыл бұрын

Prasanna has entered the chat

@FireSiku

3 жыл бұрын

I feel like the Wrogn puzzle qualifies.

@michaelholdowsky6386

3 жыл бұрын

@@FireSiku I want one where each cell is a magic square.

Me after watching the video for 35+ minutes being dumbfounded for most of it: “well that’s a 7” Simon, an actual intellectual a couple seconds later: “this has to be a 7.” Me: “I’m basically a genius for that.”

@SondreGrneng

3 жыл бұрын

Think the only thing I got was that the orange square couldn't be 4 due to the 56 beside it, lol. That said, while I absolutely can not do most of this myself, I definitely see that it's an ingenious puzzle.

@kraziebear8383

3 жыл бұрын

Me guessing the last digit when there is only 1 square left: Yeah, so im a genius

@dylankagan9695

2 жыл бұрын

@@kraziebear8383 me, who guessed the position of the first nine bcuz it was a circle in the middle of the board: I’m something of a genius myself

@kaw57_

2 жыл бұрын

@@kraziebear8383 me, who guessed that the græy square had to contain either a 2, 4, 6, or 8: Oh yeah, this is big brain time

@EchoMirage72

Жыл бұрын

Me at the start of the puzzle: well that black dot is going to have a 12346 or 8 on it. Simon later on: It's got a 4 and 8 Me: Told you.

It's astonishing that such a large group of setters can come up with a puzzle with such coherence and linear feel to the solve.

@thomasvanderlinde3680

3 жыл бұрын

Hey I recognize you from Tilburg university I think

Have you considered creating a second channel called "Crypting the Cracked" where you discuss with the setters how they came to place the elements in the puzzle they set? Maybe worth a weekly or biweekly series.

@wariolandgoldpiramid

3 жыл бұрын

I'd be interested. It would also make a good Patreon reward.

@mutsel598

4 ай бұрын

That would be great! 😍

Ya I'm gonna honestly take credit for naming it the OG Wiggle :p

@madacsg

3 жыл бұрын

Oh, Congratulations! :D I really like to know, O stands for Phistomefel's ring? :)

@PrasannaSeshadri16

3 жыл бұрын

@@madacsg partly yes hehe

@cv507

3 жыл бұрын

Gö (ne) M4D? xD hidden in plane site ^ ^

@supranormal_

3 жыл бұрын

brilliant name for a brilliant puzzle

@justanothergamingyoutuber8179

3 жыл бұрын

@@cv507 sight*

21:21 Skiptomephel ring

@triviaweise

3 жыл бұрын

Thanks

@PhilippeAnton

3 жыл бұрын

thanks a lot!

@Kokurorokuko

3 жыл бұрын

I just put x4 speed

@TheGreatPurpleFerret

3 жыл бұрын

@@Kokurorokuko i always tap that fast forward button a few times

You can deduce the “pill” can’t begin with a 1 right at the start! If it’s a 1, the minimum to make the 5 squares on the red arrow is already 20 (2,3,4,5,6).

@rmahu

3 жыл бұрын

Also the 9 in column 5 cannot go on the pill, the G or the even square, so it goes on the red arrow.

@SimonSideburns

3 жыл бұрын

I just paused the video to find this comment. Well spotted.

@jameswiebe8956

3 жыл бұрын

@@rmahu Excellent spotting!

@Baer1990

3 жыл бұрын

@@rmahu haven't started the video yet but wanted to respond on the OP that a 1 and 9 can't go on the blue line either

@rmahu

3 жыл бұрын

@@Baer1990 True, but in the solve you try to calculate the minimum for the red arrow so 9 was more relevant.

Im really proud that before starting watching cracking the cryptic i only knew how to solve regular sudokus and now when i see these types of sudokus i think: “well that looks fun to solve”

The fact that the Thermometer has a grey circle, made me put an odd number into it and the puzzle broke =_=

@wren4077

3 жыл бұрын

oh lord I genuinely thought Simon made a mistake there and I was right. This comment cleared it up for me.

@wren4077

3 жыл бұрын

I was wondering why the rules said "THE CIRCLE" when there are two turns out its because there's only one.

@adamtaylor5040

3 жыл бұрын

The colour should have been changed

@scottfalkner8013

3 жыл бұрын

THANK YOU! It keeps breaking for me, too. I keep getting too high a total in the LL killer.

@zlatkakardaleva5738

3 жыл бұрын

Me too! I had to look at why Simon's didn't break then go back from the start.

Imagine 14 geniuses recording ten minutes each while adding one rule to create an extraordinary puzzle. Now, that is a movie I would like to see.

I think Simon needs a little clippy pop up that occasionally says "you seem to be stuck, have you scanned the bottom row?" 😂

@elizabethgrosvenor153

3 жыл бұрын

😅

@StorymasterQ

3 жыл бұрын

And another that says "have you checked the square right under your mouse cursor?"

@tiemen9095

3 жыл бұрын

And another that says: Have you tried looking at ordinary sudoku logic patterns?

@megatennepster3833

2 жыл бұрын

@@tiemen9095 advanced sudoku is like calculus, you learn how to answer ridiculously advanced logic puzzles but you need a graphing paper to answer grade school math

"I've realized I've not been keeping track of which clues I thought were beautiful"... priorities, Simon...

I love that you don't assume people know everything! It makes a newbie like me enjoy your videos so much and I'm learning on the way. So many people can make you feel stupid and/or unknowing and I am so glad that's not the case here :) really enjoying your videos!

This is the first time I've actually understood the explanation of the Phistomefel ring...

My first ever sudoku with "more rules" took me 236 minutes, and I really enjoyed it 😄👍

I feel like you can sense the multiple authors on this one, which is really nice - there's multiple things going on at times and it feels like you're attacking it from all sides. I know from the comments people are saying the Phistomefel ring isn't necessary to solve it, but I loved some of the ways that it came into play, it felt really elegant and unlike any previous Phistomefel ring solves I've seen. I can't help but feel like it was intended - maybe the 'OG' in the title is a hint at the interplay between the O of the ring and the G clue??

@elizabethgrosvenor153

3 жыл бұрын

I thought it was for the circle of the two black arrows, Simon flipped between both those clues a few times at the beginning

'disambiguatable' is my new favourite word.

"There was originally a little-killer arrow with '45' on the diagonal, but that doesn't give us any additional information" Thoigh conceivably, if each person added a new clue, the 45-little-killer may have been specified _before_ the no-repeats-diagonal rule was added.

@zackszekely6618

3 жыл бұрын

As someone who spectated part of this puzzle's creation, I can tell you that wasn't the case 😂

54:43 today. I wanted to give up so many times. I just couldn't see how to progress. In the end I managed. I am so proud of myself.

@alvaropallete

3 жыл бұрын

who perseveres reaches his goals 👏

Brilliant puzzle! Loved figuring out all the implications of the clues, though having so many meant that sometimes I forgot about some of them. At 3:54, Simon, being a wizard, should already know that 5 and a half is not the only possible number that can go between 5 and 6. It could also be 5 and three-quarters.

It's not necessary to know Phistomefel's ring to solve the puzzle - the G rule does everything the ring would do.

@steveunderwood3683

3 жыл бұрын

I didn't look at how much the ring was used in the video. I only used the ring idea to place the 1 in r3c7 and the 8 in r4c7. I'm not sure how much harder it would have been to place those two without realising the 1 from box 1 and the 8 from box 3 had to be reflected somewhere in the ring.

@BlueCyann

3 жыл бұрын

What is the G rule? I"m just starting the video, if it was mentioned there. Edit: Oh, I'm assuming you mean the G-shaped "between" line. I didn't use anything fancy to solve this, but it was very, very finicky at the beginning to slowly rule out possibilities. A fun, if difficult (for me) puzzle.

@blackraven114

3 жыл бұрын

@@steveunderwood3683 I didn't use the ring. I found that the logic without it was actually much cleaner. The ones constraint in the diagonal of box 1 plus the "no 1s on the blue line" gives you the 1s in column 3 r89. That puts 2346 in the 15 cage (importantly a 2) and also forces the 1s in row 7 into box 9. Recognizing there is a 2 in the 11 cage gets you 2s in r7 box 8 which gets you the 1 in r3c7 (that whole 27918 diagonal). You use the 8 in box 3 with the now "no 8 on the blue line" rule to put the 8s in r1 in box 2, and hence the 48 pair on the Kropki dot. The 8 in c3 has to go in box 7 creating a 18 pair, and hence also a 18 in r7 box 9. The whole puzzle then goes more-or-less non-phistomofel ring.

@st.armanini9521

3 жыл бұрын

@@BlueCyann G-shaped line-related rule

@mikepictor

3 жыл бұрын

yeah, I didn't use the ring at all. I saw it existed as a potential clue source, but in the end not a necessary one.

The entire Sudoku Collab series on discord is great. Super fun puzzle and some of them are approachable, actually approachable

Remember when one of the guidelines for submission was "not too many rules"? Those were the days...

17:09 Hi i am a new viewer here, i took an interest in sudoku after watching one of your videos very recently and i was mindblown by this fact! I appreciate a lot your explanation and i like your videos, thank you!

As a relatively new follower who’s just stumbled upon this channel some months ago, I’ve been partially catching up with newer videos and partly catching up with older ones. And somehow I’ve never yet come along the phistomefel ring. Today is the first time I’ve seen it mentioned and explained and my god, I’m completely blown away by that logic. This is *a m a z i n g*! Thank you for sharing this absolute gem with us!

Spotted the position of the 8 in the Phistomefel ring about a minute before Simon - as soon as he'd placed the 8 in box 3, I realised the only place the 8 could go in the ring was in the one cell not on the G... so proud of myself!

@Kelarys

3 жыл бұрын

I experienced that exact same thing haha, high five

Dear Simon, I love Cracking the Cryptic for 2 reasons: a) The way of thinking presented is sooo impressive and satisfying to observe b) Your enthousiasm for solving puzzles on every single episode is sooo inspiring to say the least Thank you so much, you helped me cope with my time in the hospital on November 2020, by watching you solve puzzles and cleared my head. Best regards from Greece!!!

Amazing puzzle, love how all the clues kept coming into play with the orange square giving out the final answer. First one I did faster than Simon, probably because he likes to explain everything so everyone understands what's going on.

For anyone interested, I found another (rather more approachable) way to get the pair of pencil-marked 1s in box nine. As there cannot be a 1 on the blue g line, box 1 and box 4 form a sort of 'x-wing' with the 1s, thus leaving the two end cells in column 3 the only place the 1s can go. Repeating this with box 7 and box 8 put the pencil marked 1s in box 9

Marvelous puzzle and a very nice solve as well. I had an idea watching the explanation of the 'Phistomefel Ring'. You should consider doing a separate video on that, then have a pop-up link to that, it would save you quite a lot of time in the long run, because it's explained quite often. Of course you could also do a pop-up one-click-fast-forward-to-time pointing to when the explanation is finished. Anyway, just a suggestion.

@smills3118

3 жыл бұрын

In all of the times that the Phistomefel ring has been explained, this is the first time it made sense to me. I would just cut out the explanation from this video and make it into its own video!

I love that Simon and Mark casually use words like scintilla and unambiguability.

Really impressed by how well all these constraints work together, having been added by so many different people.

My favourite of your unusual sentences is "... which makes *this* a 7/grey triple!"

@956675

3 жыл бұрын

Not from this puzzle but I got a good giggle from that one too.

So this is a puzzle I actually had the time and will to finish on my own and I really liked it. I actually like when there's a lot of different rules and they nicely interact with each other. Hopefully they can do this kind of collaboration again some day!

In the States, OG stands for original gangster and is used similarly these days the way someone might say "You the real MVP!" or having a solid, earned reputation for something.....Simon and Mark are the OGs of sudoku!

I love to watch these videos, Simon a true sudoku genius solver. Although he will walk over the easy stuff because he is too smart at times. He sees things that make my head hurt as he explains them, then he will miss a simple thing like a 2 in the sudoku which clears up a 23 pair in the same row. This is what makes watching them so enthralling; how human these guys are. Love the content; love both you guys. Keep up the super human work you do.

Worry not, Simon; my mind was absolutely and properly blown up by Phistomefel's Ring

This was by far the most enjoyable puzzle to watch so far!! Amazing work by the setters and by Simon for cracking it.

You had us all going there for a moment, as it looked as though you were going to use Phistomefel's Theorem without explaining it! We needn't have worried of course.

@BramLastname

3 жыл бұрын

As someone who never heard of this, I needed at least half the information he gave on it.

I just have to said I am amazed what this channel brought to the sudoku world. this is amazing to get this kind of puzzle. and nope, i'm not giving this a try... sorry, my brain is empty after a day at work, I just watch Simon struggle and shout at the screen, but damn that's nice to watch

I really like how all the rules interact with each other; they seem to blend naturally, which is a real accomplishment considering how many rules and setters are involved

*3:09** **_Rules_* *6:27** **_Let's get cracking!_*

I’ve been obsessively watching this channel for about a week now, and this is the first phistomefel ring explanation I’ve come across. Aside from the fact I am absolutely blown away by the concept in general, I can’t wait to come across similar explanations in future videos, so I can skip them and feel like I at least have some sudoku knowledge, despite my near complete inability of solving them. This video was delightful, thank you to the fourteen genius setters that collaborated on creating this puzzle, and thank you, Simon, for letting us come along on the ride that this marvelous solve was!

I really appreciate the people that had to add to the puzzle after all of the other clues were added on and somehow still added value to the puzzle. Loved it!

You're my new favorite KZread channel. I teach formal logic at University, so this kind of thing scratches all the right itches.

Simon, rather than repeating the description of how Phistomefel's ring every video it comes up, it might be an idea to have a separate video that you can link to every time it comes up

@ry-et1vi

3 жыл бұрын

I think a better idea would just be putting a timestamp somewhere like description or pinned comment to skip the explanation

@euanmcdougall1917

3 жыл бұрын

@@ry-et1vi that would cause YTs algorithm to favour CTC videos less

@ry-et1vi

3 жыл бұрын

@@euanmcdougall1917 fair enough but I was thinking more in terms of viewer experience

@llKirosll

3 жыл бұрын

I myself do appreciate that he gave the full explanation. I'm not exactly new to this channel, but I do not watch every single video either, thus it was the first time I ever heard of it. If there was just a link to a separate video, I most likely wouldn't watch, as I wouldn't just stop the solving in the middle, and continuing without understanding his reasoning would surely leave me lost, eventually losing interest. Now, on the flip side, I do not object to have a separate video on the Phistomefel's ring, maybe more detailed, not something coming from a puzzle but kind of an empty board where it could be demonstrated. And I'm sure the same could be said for other aspects/truths/rules/you-name-it about sudoku that I probably am not aware of.

@kylecoleman6221

3 жыл бұрын

I think this was a pretty unique application of the ring though. It fits that he explained it again. But I agree that a separate video explanation should be the case in others. Or he could give a less complex explanation and refer to a video with a more detailed description.

this was so entertaining to watch! seeing all the different rules and clues and how they play into the final solution as you solved it. an absolute pleasure, loved every minute of it!

I spent the longest time reading that thermo as an arrow, and while I was able to make pretty good progress in that version of the puzzle, it inevitably wound up leading to contradictions later on. I restarted the puzzle 2 or 3 times to try and figure out what I did wrong, eventually having to resort to watching Simon's solve... and when he pointed out an 8 could not be on the *thermometer*, everything suddenly clicked, and I was able to solve things just fine after one more reset.

You could have limited the 1s without the knowledge of the Phistomefel property. The 1 in box 4 had to be in columns 1 or 2 as it can't be on the blue. So the only place for a 1 on column 3 was box 7

@stevieinselby

3 жыл бұрын

I've noticed this a few times, Simon gets so excited by seeing a ring around the outside of box 5 that he assumes it must be a Phistomefel trick and often makes more of a meal of it than if he had just used the _visible_ logic. I didn't even consider the Ring, but when you know that you can't place the 1 anywhere on the G (apart from maybe at one end) and that there must be a 1 on the purple arrow, the 1s are placeable just as easily by regular sudoku.

Something I found interesting (maybe it's just a coincidence??) but the small corner boxes of the Phistomefel Ring (starting with the top left box and moving anti-clockwise) contain the digits in order that start on the top of the "G" working inwards. In other words - to make it more clear - the first 4 digits of the "G" starting at the top are the 4 digits in the top left corner box of the Phistomefel Ring. Then the next 4 digits along the "G" are the next 4 digits in the lower left corner box of the Phistomefel Ring, etc., etc. around the "G" and around to the other corners. I know this doesn't have to be the case for the Phistomefel Ring (that is, the digits have to be next to each other that are in the corner boxes) but I thought it was a clever touch to the puzzle - whether it was intended or not. Well done.

I could watch a whole 4 hours of Simon being completely giddy and giving positive affirmations, to genius setters.

This puzzle is mind-blowing. I loved watching the solve. Great job!

Did anyone realize that there are exactly 14 different "clues" in there in the sense that even the "circle is odd and square is even", the two black arrows which share the bulb with the 9 and the killer sudoku cages have to be from different setters? (i dont know how to phrase this better but i mean that even the circle and square were added by two different setters, same for the two black arrows. Until the end the possibility that the circle and square were not added by the same setter didn't even cross my mind)

17:05 Thank you so much for this! I know barely anything about Sudoku, but I got a few of your videos in my recommended and they are super entertaining, so I've been watching them. I was very confused what you were talking about, so thanks for the explaination!

The Werefrog kept breaking it by putting an odd at the thermo start since that was a grey circle in the cell. Perhaps we need to ensure indicators not related used different colours?

@srwapo

3 жыл бұрын

I did that in an early puzzle this month. :|

This is so amazing 🤩👍🏻👍🏻👍🏻 I had a little mishap in the 11 cage and had to backtrack a lot, but after that I cleared it in one go. I just love puzzles with combinations of rule sets. And this is just brilliant 👏🏻👏🏻👏🏻 Thanks to all the 14 creators 🎩

22:50 The longest, most wonderful single digit solve I've ever seen. Wonderful.

this is such a cool puzzle. i've been watching your videos for a couple of weeks and already feel myself improving, spotting patterns and weak cells much more quickly and efficiently! :)

45:38 "we mustn't have everything wrogn here". Simon got ptsd from his last movie it seems

@dikephobia

3 жыл бұрын

this one**

As a new viewer, I am very glad you explained the Ring. I had no idea what you were talking about at first, but I now see how this works and I think it is brilliant.

I love seeing how excited you get when something clicks into place. It's so adorable.

I absolutely LOVED this puzzle. Put great minds together, and this is the result. I'd love to see more like this.

The ring logic and technique is magic. Really great. The deduction that there is only one 1 in corner squares, is great.

Had much fun with this one on myself and I didn’t need the Phistomefel ring XD (i.e. ~23:22 Simon gets pencil-marked 1s into box 7 - well, they could have been pencilmarked there the moment he got the 1 on the purple arrow, because one can never go on the G regardless.) That is a neat solution tho :)) Thank you to all the constructors! - and Simon of course~

i think this was the most artful sudokus you've ever done. i extremely enjoyed it

Thank you for explaining! :) this is so fun! And has gotten me way more into sodoku now that you make it so accessible and take the time to explain your logic

I’ve seen your videos on my recommendations for a while and never watched. I am disappointed, yet happy to have something new to binge watch. Great content! New sub!

Me, who takes half a day to solve it, seeing simon solves it in half an hour: damn, I think we are at the same level

That was a fun puzzle to watch him solve! Thanks for your work, folks!

this one was beautiful & makes me excited to see the upcoming many-ruled sudoku

I'm absolutely amazed at how coherent this puzzle felt. I made a good bit of progress but couldn't get the red arrow (the "wiggle"?) without some help from the video. It's without a doubt the most distinctive puzzle I've ever worked on; nothing has ever felt at all like this one. Kudos!

This took me forever. I was stuck for quite a while before realizing I had forgotten the thermometer, which disambiguated a single square, which turned out to be enough. I'm pleased that I could complete it, though! Doesn't always happen with these things. Edit: looks like I came to the realization and paused the video half a second before Simon filled in the digit I was stuck on. I'm really glad I noticed when I did, so I can still say that I solved it on my own.

Wow, down to the very last part! Incredible and a joy to watch!

I think a cleaner way to see the long arrow at around 36 minutes is that the column must add to 45. Take away the 2 and 7 already in the column, and we get that the remaining 7 cells, 5 of which must be on the arrow, add to 36. The maximum value of the pill is 28, and if we subtract 3 + 3, which is the minimum value of the cells on the arrow but not in column 5, we get that the 5 cells in column 5 and on the arrow can add to a maximum of 22. This is exactly achieved if we fill in the remaining 2 cells in the column with their maximum values of 6 and 8. It's a little less like bifurcation if you prefer, although Simon's deduction is equally valid. What a fun puzzle! I tried to determine the order the rules were added and simply couldn't place the G, arrows, and thermo.

What an amzing puzzle. I really enjoyed how all the clues worked together. Especially as different people submitted clues, so just as they had to work together to make the puzzle, the clues worked together to make it solvable.

This was a very nice puzzle indeed. I broke it once cause I forgot the orange cell can be a 9, but other than that it flowed very nicely. But I find the break-in without Phistomefel's ring much nicer. The logic used is very simple and neat, no need for any tricks there. Although the ring is sort of built into the puzzle with the blue G, so I was using the same principle even when I wasn't thinking about it that way. The way I went about it was that I looked at the two longest blue lines and realised that a) they would need to have all the possible numbers on the blue line and b) all the numbers that can't be on those blue lines would form quadruplets at the ends, which intersect in the bottom left box, terefore c) whatever is in the 15 cage must be on the blue line. and then I just found the 15 cage and knew 2 would be on the blue line, which disambiguated the G endings and the sums. it still wasn't easy though, with my mistake, which took some time to figure out and fix, I solved it in 3 hours. every digit still takes me a long time, I simply cannot scan quickly.

This puzzle is honestly a piece of art.

Absolutely glorious puzzle, thanks to all involved. Took me about 90 minutes.

This video is a wonderful introduction to your channel, charming community for sure and I don't think I've ever really grasped the joy in sudoku until all these little interacting systems mussed it up.

Amazing puzzle and great solve, Simon.

Thank you for explaining the ring. That was new to me.

Awesome puzzle! And thank you for explaining the ring, I'm new here and was just thinking how totally lost I was until you explained it :)

Imagine my surprise when the first name I hear is my own. I suppose it's not a terribly rare name. (I did not solve it.)

Ok so I am indeed a new viewer and not going to butcher how to spell the ring, but what the hell? That is the coolest thing ever. I’m now going through all my classic sudokus finding this ring!

I mistakenly thought the start of the thermometer was also a "grey circle" aka odd digit.. was very confused when nothing works at the start

@scottfalkner8013

3 жыл бұрын

Same. Kept breaking. Only the comments here showed me my mistake.

The first time I saw this video I thought it was bonkers and way too hard to follow with so many rules. Today, I tried to finally do it without remembering anything from the solve and I found it quite easy! I really think it's because watching this channel really improves my puzzle solving abilities.

you keep doing these insane puzzles

Awesome solve sir. The best 46 minutes of my day.

@alvaropallete

3 жыл бұрын

you haven't yet seen the whole video dude 🤦

@ilonachan

3 жыл бұрын

@@alvaropallete This type of prediction never fails ya know

Just when I was thinking this time he is not explaining the Phistomephel ring, he did it! Nice puzzle.

The two digit sum cant begin with a 1, because then the six digits are 23456 minimum which is 20. Plus the two extras.

28:58 ... after struggling on both of yesterday's puzzles, I'm happy to have made my way through this contraption. (No, I didn't use Phistomefel's Theorem ... I didn't need it here.) Crazy puzzle!

Looks like a Rube Goldberg sudoku

At 24:00 I was crying that he didn’t notice that the most top left box would have to be 3 or 4 by the last rule

I haven't watched for a while, but I just couldn't not click on a thumbnail + title this intriguing. Loved this one

17:10 Today I was the new viewer watching. Thanks for going through that beautiful logic!

@BramLastname

3 жыл бұрын

Fun fact, Because the G takes up so many spaces of the ring you can solve it without using the ring, Since you can derive that column needs a 1 in one of those positions.

Very cool how things work along the diagonal

Thank you for explaining. I am a new viewer and had no clue.

I’m so grateful for this brilliant community.

I'm a viewer who has never done a Sudoku, appreciate the explanation!