Thank you for this gorgeous feature, Simon! This was a very special birthday gift for me today. :) I loved your enthusiasm and the little moments of surprise. You explained the logic very clearly and, fortunately, the little hiccup did not make you have to rewind very far. Also special thanks for all the kind things you said at the end. I love sudokus myself and giving joy to others through my own puzzles is the best I could hope for as a setter. I wish you all the best for the future and I am looking forward to your upcoming content. Kind regards, Nils/sujoyku
21:47 A brief disclaimer on behalf of Simon: The Robert Jenrick comment was not politics sullying the cosy majesty of CtC, Jenrick put out a personal newspaper which included a sudoku with two given 6's in the same row.
Years ago, I was on a train that had an on-board magazine. It included a couple of sudoku puzzles on it that were broken right off the bat with conflicting given digits. I don’t know what was more frustrating: that, or the in-flight magazine on an airline that had sudokus without unique solutions.
It's interesting to me that when Simon made the little blunder in column 9 he briefly expressed surprise at the result, like some unconscious part of his mind recognized something was not quite right there...
Yes, his ‘spidey-sense’ is often remarkably in tune. On the occasional examples where he has to backtrack to error like this, I’m often surprised at his quickly he pinpoints the source. It’s the same spidey-sense that lets him intuit all sorts of wonderful things early on in solves I think (if the ‘straight-forward sudoku’ at the end is sometimes given a very roundabout treatment). 😂
Also, I'm hugely impressed by him knowing (or at least strongly assuming) that he thought about sums to 8 instead of 9, while I wouldn't even know how far to go back and check for mistakes.
Rules: 07:31 Let's Get Cracking: 10:08 Simon's time: 40m37s Puzzle Solved: 50:45 What about this video's Top Tier Simarkisms?! Bobbins: 1x (45:06) Phistomefel: 1x (03:33) And how about this video's Simarkisms?! Brilliant: 9x (05:10, 07:08, 08:19, 09:34, 18:42, 18:42, 50:45, 50:45, 51:47) Ah: 8x (19:10, 24:25, 27:51, 28:21, 40:44, 43:04, 47:34, 48:12) In Fact: 7x (18:06, 18:21, 18:38, 27:47, 29:26, 46:20, 50:53) Weird: 6x (15:11, 19:10, 19:13, 36:59, 39:41, 39:41) Sorry: 5x (26:41, 31:10, 34:32, 37:42, 50:47) Obviously: 5x (00:56, 07:16, 16:41, 26:29, 26:44) Pencil Mark/mark: 5x (41:37, 42:09, 42:15, 46:11, 48:31) Lovely: 4x (19:29, 28:46, 30:35, 49:29) Beautiful: 4x (00:24, 23:28, 28:24, 49:25) Cake!: 3x (05:14, 05:50, 07:10) What on Earth: 2x (41:55, 42:01) Nonsense: 2x (13:07, 31:25) Gorgeous: 2x (19:29, 51:26) By Sudoku: 2x (40:35, 46:34) Wow: 2x (36:51, 50:41) Symmetry: 2x (26:30, 32:35) Goodness: 1x (20:29) The Answer is: 1x (22:37) Clever: 1x (29:42) Stuck: 1x (24:08) Going Mad: 1x (34:32) Shouting: 1x (45:57) Facetious: 1x (21:37) Hang On: 1x (14:10) Magnificent: 1x (03:51) Fabulous: 1x (51:22) Nature: 1x (20:49) Most popular number(>9), digit and colour this video: Twelve (8 mentions) One (94 mentions) Green (8 mentions) Antithesis Battles: Even (4) - Odd (1) Higher (2) - Lower (2) Row (15) - Column (13) FAQ: Q1: You missed something! A1: That could very well be the case! Human speech can be hard to understand for computers like me! Point out the ones that I missed and maybe I'll learn! Q2: Can you do this for another channel? A2: I've been thinking about that and wrote some code to make that possible. Let me know which channel you think would be a good fit!
I'm jazzed to have solved this one without aid. 51:08. Once I understood the interplay of green and lavender, and made some notations, I had the pleasure of enjoying a fairly smooth unfolding. A real delight at my level of ability. And I'm again amazed at how setters come up with these ideas. A lovely puzzle!
Slowly savored this sudoku in 01:27:42. Took me about 20 minutes to do the pure sudoku after solving the lines. A really fun puzzle! I liked the way that line interactions weren't obvious at first, but when you started listing out possibilities you narrowed things down to just what would fit.
That was an awesome break-in. Took me 24:37 because once you accept the inevitable maths of the interactions between the circles and zipper lines, it's relatively straightforward with a clean sudoku finish. Beautiful puzzle!
I have a way of knowing if a puzzle will be too hard for me: if the Craking The Cryptic video is under 40 minutes, it's at my level. If not, it's too hard. But this Sudoku, even if it doesn't fit into the criteria I've set myself, I tested it. And even if it took me much longer than Simon, I did it. I found it extremely beautiful, and the pleasure I felt when I realized I could complete it myself was incredible. Trully a great one. Thank you.
Simon missed that there had to be a three in column 7, rows 5 and 6 after figuring out that there was a 1 or 4 in column 8, row 4 which would have helped him place a 3 in box 9 a lot faster. Gorgeous puzzle and gorgeous solve Simon and Sujouyku! I enjoyed that a lot!
29:57 "oh dear... alright, so we're going to have to think again, aren't we?" Just in case there is somebody out there who is collecting Simon's out of context quotes in hopes that one day, there'll be a printed book's worth of them.
I finished in 45:30 minutes. There must something so intuitive about these split pea rules, because every time I have done one of these puzzles, it has clicked for me. This one in particular was really fun with the zipper rules. I think my favorite part was the disambiguation of the two zippers on the left and right due to the 1 that formed in r7c6, that forced a 1 out of r9c1. I had a good time with this one. Great Puzzle!
17:51 Fascinating, was sure Simon was working towards a totally different reason this pattern fails (namely the outermost 12 pair is interdicted by the X-wing on 2s)
This is me, actually screaming at the screen for the first time, when Simon did not see that 8 was no longer an option in column 9 cause of the 1 and 2 😂
There is likely more wrong with the Jenrick puzzle than just the placement of 6. I made manual trials with both suggested positions, then tried a web solver... and found out that none of the positions possible for 6 on row 2 result a puzzle that could be solved without guessing. Now, to see if I can make the heads or tails of the main course.
16:40 I am seeing something. If you have an 8 in the middle of the zipper in either C1 or C9, the implication for that is that 7 will appear on the line somewhere. Because to make 8 you'd have to use [17] and [35]. And if you have 9 in the middle of the zipper, then 7 will appear in the circles. This means that R1C1, R1C9, R9C1 and R9C9 cannot be 2 or 7. Does this help any? I don't know, all i know is 7 will appear on the lines you've highlighted no matter what. I do want to also point out that the units digit on the big diagonal line is an even number. For whatever that's worth. And yes, the tens digit is not a 2. So the diagonal will be one of 14, 16, 18 or 34, 36, 38 or 44, 46, 48 etc etc. Except of course it can't be all those things. 44 is impossible as that would invalidate the 24 line with 8 in the middle. 36 would be difficult. etc etc. And the next step is likely going to involve R7C6, because it can't be a large digit. In fact, it is a 1 and is the tens digit because [89] adds to 17 and is the highest possible. So the line is 12, 14 or 17.
That really is a beautiful puzzle. I did not have time to try it yet (because I had to interrupt watching this video in order to watch the stream, and now I want to watch Mark's video), but I will do so. Thanks, Simon, for all of the fun on this channel!
Who's to say the Jenrick post readers aren't playing some wild variant sudoku where they have to figure out the time themselves? (Puzzle setters, please don't get any ideas.)
Around min 27 there is a nice logic: r9c1 can NOT be 1, because it would force 1 at box 9 to be on the green line, which is imposible (as we know it sums to 12). This gives lots of digits.
I had a similar goof where after I figured out which column had the 8 and which had the 9, I ended up making a 45 pair for both and then noticing the deadly pattern about 8 minutes later and having to unwind it all to fix the pencil marks 😅
The break-in columns were disambiguated as soon as the 1 and 6 were placed. Between col 1 and col 9, the one with the 8 in the middle must have 9 and 6 on the corners. Since the 6 corner is placed in col 1, that col is the col with the 8. You cannot put another 6 in the other col. so the idea of the '9' column having 6 and 3 in the corners won't work
The OOPS was put in at 39:42, so you found that you kicked out the 5s instead of the 6s when you saw the 3s were in the bottom, thinking of 8 instead of 9 for the sum.
I’m still mad that “concatenation” has nothing to do with cats. It should be the word that describes the howling of a cat on a back alley fence just before someone throws a shoe at it, in an old cartoon.
34:40 My word, Simon. You asked the question on R9C1 but never on R1C9. Since R1C9 is a 1, there is no 1 on the zipper in C9. And you only had two ways of making 8 on a zipper. Since the sum is 24, you only had [17] and [35] and that's not possible in C9.
My math skills to the rescue! 😄 This puzzle flowed so smoothly for me, done in 16:38 (conflict checker off), many thanks to sujoyku for a wonderful puzzle!
The first sudoku app I ever had ocasionally ended up with errors like that. And it was almost always two 6's in a row or column. I don't know why it was always 6, but it was almost always 6.
Simon. I know you mean well, but your extended explanation of an X-wing really ruined the flow of the puzzle. No-one watching needs this to be so dumbed down. Maybe when you started the channel you had beginner solvers, but there's no way that's the case now. If half your subscribers watch and you only took 60 seconds to explain it, that's over 200 person-days of humanity lost to an unnecessary simple point. As the channel has grown (yay!) your approach should become more consistent with your core audience. That's a beautiful solve though.
It's a delicate balance running a UA-cam channel. You need to make content that appeals to your core audience, but you also have to make content that's approachable for people that are brand new if you want to grow. Maybe CTC go a bit overboard sometimes but it's not an easy task to get the balance right. 10-minute intros are probably off-putting to new viewers too though, so everyone's (not) a winner!
I always thought his insistence on asking a "facetious" question of "how many 2s do we expect to find in the rows in a completed grid?" was over complicating the explanation. There's only two ways round you can put the 2s, they either go on the ends of the positive diagonal, or on the ends of the negative diagonal of the wings of the x-wing. Either way, you have the 2 for both the row and column. Simple sudoku says you cannot have a second 2 in either row or column. (Unless you're a Tory leadership candidate - then all bets are off).
First off, I think this is almost certainly incorrect as a strictly-business matter of UA-cam algorithmics, but second, it's also kind of rude. Bad combination.
Disagree. CTC videos get tens of thousands of views. Every video, that will include some new viewers. If you want the channel to be inclusive and to _continue_ to grow then you have to make the contents accessible to newbies. If you or I are watching a video that includes an explanation of something we already know, and we're in a hurry, we can skip forward to when Simon/Mark resumes the solve. If a newbie is watching a sudoku video for the first time and Simon/Mark starts talking about strange, mystical things called x-wings or starts using german whisper logic without any explanation, it's going to put them off - even if there is a link to a companion video that includes that explanation, it isn't going to make the channel welcoming and it isn't going to enthuse new viewers to believe that they can get to grips with variant sudoku if its arcane secrets are so complex that they can't even be dealt with in the regular video.
@@stevieinselby I'd go along with that for complex ideas, such as the Phistomefel ring. But x-wings just aren't that complex. His way of explaining them is just one step removed from saying "I've placed a 5 in this row. Let me ask a facetious question. How many 5s will there be in the row in the completed grid? One. There will be one 5 in the row. So we can rule 5 out of all these other cells in the row". But I'm realistic enough to know Simon won't deviate from his script for explaining x-wings. It's too ingrained by now.
Thank you for this gorgeous feature, Simon! This was a very special birthday gift for me today. :)
I loved your enthusiasm and the little moments of surprise. You explained the logic very clearly and, fortunately, the little hiccup did not make you have to rewind very far.
Also special thanks for all the kind things you said at the end. I love sudokus myself and giving joy to others through my own puzzles is the best I could hope for as a setter.
I wish you all the best for the future and I am looking forward to your upcoming content.
Kind regards, Nils/sujoyku
These Zip-Pea lines are just wonderful! A joy to solve!
21:47 A brief disclaimer on behalf of Simon: The Robert Jenrick comment was not politics sullying the cosy majesty of CtC, Jenrick put out a personal newspaper which included a sudoku with two given 6's in the same row.
Simon it's easy to work out just how far back you need to go. Simply go back to where the giant "oops" appeared. 😉😆
😂
🤣🤣🤣
Thank you for the "Oops" on screen... if I can't follow your logic I always have to pause the video and try to figure out what I'm missing.
I'm so happy to see this one get featured! As one of the original testers, I thought this was spectacular!!
I actually wondered who are the testers. They've never got any kudos.
Years ago, I was on a train that had an on-board magazine. It included a couple of sudoku puzzles on it that were broken right off the bat with conflicting given digits. I don’t know what was more frustrating: that, or the in-flight magazine on an airline that had sudokus without unique solutions.
It's interesting to me that when Simon made the little blunder in column 9 he briefly expressed surprise at the result, like some unconscious part of his mind recognized something was not quite right there...
Yes, his ‘spidey-sense’ is often remarkably in tune. On the occasional examples where he has to backtrack to error like this, I’m often surprised at his quickly he pinpoints the source. It’s the same spidey-sense that lets him intuit all sorts of wonderful things early on in solves I think (if the ‘straight-forward sudoku’ at the end is sometimes given a very roundabout treatment). 😂
@@brianj959Totally agree.
Also, I'm hugely impressed by him knowing (or at least strongly assuming) that he thought about sums to 8 instead of 9, while I wouldn't even know how far to go back and check for mistakes.
Rules: 07:31
Let's Get Cracking: 10:08
Simon's time: 40m37s
Puzzle Solved: 50:45
What about this video's Top Tier Simarkisms?!
Bobbins: 1x (45:06)
Phistomefel: 1x (03:33)
And how about this video's Simarkisms?!
Brilliant: 9x (05:10, 07:08, 08:19, 09:34, 18:42, 18:42, 50:45, 50:45, 51:47)
Ah: 8x (19:10, 24:25, 27:51, 28:21, 40:44, 43:04, 47:34, 48:12)
In Fact: 7x (18:06, 18:21, 18:38, 27:47, 29:26, 46:20, 50:53)
Weird: 6x (15:11, 19:10, 19:13, 36:59, 39:41, 39:41)
Sorry: 5x (26:41, 31:10, 34:32, 37:42, 50:47)
Obviously: 5x (00:56, 07:16, 16:41, 26:29, 26:44)
Pencil Mark/mark: 5x (41:37, 42:09, 42:15, 46:11, 48:31)
Lovely: 4x (19:29, 28:46, 30:35, 49:29)
Beautiful: 4x (00:24, 23:28, 28:24, 49:25)
Cake!: 3x (05:14, 05:50, 07:10)
What on Earth: 2x (41:55, 42:01)
Nonsense: 2x (13:07, 31:25)
Gorgeous: 2x (19:29, 51:26)
By Sudoku: 2x (40:35, 46:34)
Wow: 2x (36:51, 50:41)
Symmetry: 2x (26:30, 32:35)
Goodness: 1x (20:29)
The Answer is: 1x (22:37)
Clever: 1x (29:42)
Stuck: 1x (24:08)
Going Mad: 1x (34:32)
Shouting: 1x (45:57)
Facetious: 1x (21:37)
Hang On: 1x (14:10)
Magnificent: 1x (03:51)
Fabulous: 1x (51:22)
Nature: 1x (20:49)
Most popular number(>9), digit and colour this video:
Twelve (8 mentions)
One (94 mentions)
Green (8 mentions)
Antithesis Battles:
Even (4) - Odd (1)
Higher (2) - Lower (2)
Row (15) - Column (13)
FAQ:
Q1: You missed something!
A1: That could very well be the case! Human speech can be hard to understand for computers like me! Point out the ones that I missed and maybe I'll learn!
Q2: Can you do this for another channel?
A2: I've been thinking about that and wrote some code to make that possible. Let me know which channel you think would be a good fit!
I'm jazzed to have solved this one without aid. 51:08. Once I understood the interplay of green and lavender, and made some notations, I had the pleasure of enjoying a fairly smooth unfolding. A real delight at my level of ability. And I'm again amazed at how setters come up with these ideas. A lovely puzzle!
23:57 for me. I don't even remember the last time when I was able to beat Simon solving time. 😊
Thanks CTC for my daily portion of brain food
Jenrick can now add to his list of qualifications: "Constructed a puzzle featured on Cracking the Cryptic" :D
lmao
enjoying today's CTC video while sitting at the kitchen counter with a glass of wine after a stressful day of getting lost in the woods. what a life!
i love that you dont cut out you wrong doing
If a Sudoku could be poetry, this would be it
Slowly savored this sudoku in 01:27:42. Took me about 20 minutes to do the pure sudoku after solving the lines. A really fun puzzle! I liked the way that line interactions weren't obvious at first, but when you started listing out possibilities you narrowed things down to just what would fit.
48 min for that one. It felt very understandable to me and flowed really well.
That was an awesome break-in. Took me 24:37 because once you accept the inevitable maths of the interactions between the circles and zipper lines, it's relatively straightforward with a clean sudoku finish. Beautiful puzzle!
I have a way of knowing if a puzzle will be too hard for me: if the Craking The Cryptic video is under 40 minutes, it's at my level. If not, it's too hard.
But this Sudoku, even if it doesn't fit into the criteria I've set myself, I tested it. And even if it took me much longer than Simon, I did it. I found it extremely beautiful, and the pleasure I felt when I realized I could complete it myself was incredible.
Trully a great one. Thank you.
I would have thought you should distinguish between Mark's and Simon's videos as the latter has a lot more exposition and pre-amble.
Simon missed that there had to be a three in column 7, rows 5 and 6 after figuring out that there was a 1 or 4 in column 8, row 4 which would have helped him place a 3 in box 9 a lot faster.
Gorgeous puzzle and gorgeous solve Simon and Sujouyku! I enjoyed that a lot!
Was not expecting the newspaper callback 😂
I felt very proud of myself for figuring out the 2 x-wing on my own, haha.
29:57 "oh dear... alright, so we're going to have to think again, aren't we?"
Just in case there is somebody out there who is collecting Simon's out of context quotes in hopes that one day, there'll be a printed book's worth of them.
I finished in 45:30 minutes. There must something so intuitive about these split pea rules, because every time I have done one of these puzzles, it has clicked for me. This one in particular was really fun with the zipper rules. I think my favorite part was the disambiguation of the two zippers on the left and right due to the 1 that formed in r7c6, that forced a 1 out of r9c1. I had a good time with this one. Great Puzzle!
17:51 Fascinating, was sure Simon was working towards a totally different reason this pattern fails (namely the outermost 12 pair is interdicted by the X-wing on 2s)
Tories really pushing the "we're the party for people who are ignoramuses and proud of it" approach, eh
This is me, actually screaming at the screen for the first time, when Simon did not see that 8 was no longer an option in column 9 cause of the 1 and 2 😂
Love sujoyku. Great puzzle. 👏👏👏
My poor dog had to listen to me rambling about column nine, box three and sorts like that again 😂
He's quite used to that by now
Also Simon refusing to do Sudoku unless forced to never gets old
Sudoggo? 🐶
Can we have "to Jenrick" be when you accidentally put two of the same numbers in a row, column or box?
There is likely more wrong with the Jenrick puzzle than just the placement of 6. I made manual trials with both suggested positions, then tried a web solver... and found out that none of the positions possible for 6 on row 2 result a puzzle that could be solved without guessing. Now, to see if I can make the heads or tails of the main course.
9:13 for me. Really enjoyed this one, great puzzle!
Managed 23:38, lovely interaction of rules in this!
Thank you Simon, another beautiful puzzle
16:40 I am seeing something.
If you have an 8 in the middle of the zipper in either C1 or C9, the implication for that is that 7 will appear on the line somewhere.
Because to make 8 you'd have to use [17] and [35].
And if you have 9 in the middle of the zipper, then 7 will appear in the circles.
This means that R1C1, R1C9, R9C1 and R9C9 cannot be 2 or 7.
Does this help any? I don't know, all i know is 7 will appear on the lines you've highlighted no matter what.
I do want to also point out that the units digit on the big diagonal line is an even number. For whatever that's worth.
And yes, the tens digit is not a 2.
So the diagonal will be one of 14, 16, 18 or 34, 36, 38 or 44, 46, 48 etc etc. Except of course it can't be all those things.
44 is impossible as that would invalidate the 24 line with 8 in the middle.
36 would be difficult. etc etc.
And the next step is likely going to involve R7C6, because it can't be a large digit. In fact, it is a 1 and is the tens digit because [89] adds to 17 and is the highest possible.
So the line is 12, 14 or 17.
46:00 - A Robert Jen-Ricket
That really is a beautiful puzzle. I did not have time to try it yet (because I had to interrupt watching this video in order to watch the stream, and now I want to watch Mark's video), but I will do so. Thanks, Simon, for all of the fun on this channel!
29:52 ... More fun with arithmetic (and multiples of 3 and 4, in particular)
Nice puzzle!
Brilliant puzzle.
19:14, a pretty straightforward solve once I saw how to think about columns 1 and 9 and the diagonal. To think I was gonna skip solving this one.
Woo! I beat Simon's time, solved in 30:42.
crushed this in 20:52 :), so proud of myself
I love those lines! They inspire me so much creativity!❤
Who's to say the Jenrick post readers aren't playing some wild variant sudoku where they have to figure out the time themselves? (Puzzle setters, please don't get any ideas.)
Way too late for that - I'm sure someone is already uploading it to LMD.
Around min 27 there is a nice logic: r9c1 can NOT be 1, because it would force 1 at box 9 to be on the green line, which is imposible (as we know it sums to 12). This gives lots of digits.
I had a similar goof where after I figured out which column had the 8 and which had the 9, I ended up making a 45 pair for both and then noticing the deadly pattern about 8 minutes later and having to unwind it all to fix the pencil marks 😅
Another GREAT pzzle. Thank you !!!!!
33:21 If r2c8 is a 1 then r1c9 is a 6 and there's only a 4 left for r3c8. That kicks out both the options for r4c8.
The break-in columns were disambiguated as soon as the 1 and 6 were placed. Between col 1 and col 9, the one with the 8 in the middle must have 9 and 6 on the corners. Since the 6 corner is placed in col 1, that col is the col with the 8. You cannot put another 6 in the other col. so the idea of the '9' column having 6 and 3 in the corners won't work
00:53:14 for me loved the puzzle
The OOPS was put in at 39:42, so you found that you kicked out the 5s instead of the 6s when you saw the 3s were in the bottom, thinking of 8 instead of 9 for the sum.
i'm having the strongest sense of deja vu
Placing a 7/8 in box 2 . Look at the red 7 in box 3 😁😉😏
I’m still mad that “concatenation” has nothing to do with cats. It should be the word that describes the howling of a cat on a back alley fence just before someone throws a shoe at it, in an old cartoon.
Just under half an hour for me, not too hard but very interesting logic 😊❤
2:05
We must leave
the ECHR
Red flag right off the bat with that graphic design. 😅
It's a fine puzzle but I can't imagine how anyone would rate it 2/5 for difficulty
Solved in 19:03 !
That newspaper puzzle perhaps has some deeper meaning about what's offered by our elected representatives 😂
So to say, something isn't going to compute a while after one has been elected?
34:40 My word, Simon.
You asked the question on R9C1 but never on R1C9.
Since R1C9 is a 1, there is no 1 on the zipper in C9.
And you only had two ways of making 8 on a zipper. Since the sum is 24, you only had [17] and [35] and that's not possible in C9.
My math skills to the rescue! 😄 This puzzle flowed so smoothly for me, done in 16:38 (conflict checker off), many thanks to sujoyku for a wonderful puzzle!
34:50 the "6" CANNOT be "box 9 green"... because the other green would be either 2 or 3
How did Simon eliminate the 5 from r7c2 at 48:16?
@@MCarrington01 the 9 in r9c8 forces it. It confused me as well (to me, it sounded like he eliminated a 5 rather than seeing the 9)
only place the nine could go
9 saw r9 and forced the 3/5 both down there
lol of course. I got so wrapped up in him explaining about removing the three and five I didn’t see the obvious nine. I pulled a Simon. 😂
20:51 before I realized I misunderstood something and broke the puzzle. 22:24 after restarting. So 43:15 total for me.
Titi's Time: 25:50
Great puzzle. Fortunately for me, when I make errors and have to revert, no one sees.
20:54 for me.
16:48 for me
The newspaper pretty much sums up Tories, can't do anything right...
What's wrong with the sudoku at 2:30 ?
Row 2 has two given sixes. But that's ok, normal rules don't apply to Tories, they just do as they like.
@@andreasvox8068😂
I found it hard for me, i used 33 min yertersay. So easy in the video and so hard in the bar :-(
Not sure if doing these while drinking or lying in bed after a really long day is harder. 😂
squares ❌
squas ✅
Wonder if that Sudoku will ever be solved 😂.
I wonder if there's a third 6 like in the bible?
The first sudoku app I ever had ocasionally ended up with errors like that. And it was almost always two 6's in a row or column. I don't know why it was always 6, but it was almost always 6.
22:38 for me. not that hard. about mediocre.
It would be a good thing to test and select would-be political party leaders all over the world by making them do a Phistomefel puzzle first 🙂
Disqualified from Tory leadership because he's bad at Sudoku setting? Sure. Makes sense to me.
I think issuing a daily newspaper about yourself should disqualify you regardless. 😂
I think you're disqualified from Tory leadership if you can do a sudoku at all.
Simon. I know you mean well, but your extended explanation of an X-wing really ruined the flow of the puzzle. No-one watching needs this to be so dumbed down. Maybe when you started the channel you had beginner solvers, but there's no way that's the case now. If half your subscribers watch and you only took 60 seconds to explain it, that's over 200 person-days of humanity lost to an unnecessary simple point. As the channel has grown (yay!) your approach should become more consistent with your core audience. That's a beautiful solve though.
It's a delicate balance running a UA-cam channel. You need to make content that appeals to your core audience, but you also have to make content that's approachable for people that are brand new if you want to grow. Maybe CTC go a bit overboard sometimes but it's not an easy task to get the balance right. 10-minute intros are probably off-putting to new viewers too though, so everyone's (not) a winner!
I always thought his insistence on asking a "facetious" question of "how many 2s do we expect to find in the rows in a completed grid?" was over complicating the explanation. There's only two ways round you can put the 2s, they either go on the ends of the positive diagonal, or on the ends of the negative diagonal of the wings of the x-wing. Either way, you have the 2 for both the row and column. Simple sudoku says you cannot have a second 2 in either row or column. (Unless you're a Tory leadership candidate - then all bets are off).
First off, I think this is almost certainly incorrect as a strictly-business matter of UA-cam algorithmics, but second, it's also kind of rude. Bad combination.
Disagree. CTC videos get tens of thousands of views. Every video, that will include some new viewers. If you want the channel to be inclusive and to _continue_ to grow then you have to make the contents accessible to newbies. If you or I are watching a video that includes an explanation of something we already know, and we're in a hurry, we can skip forward to when Simon/Mark resumes the solve. If a newbie is watching a sudoku video for the first time and Simon/Mark starts talking about strange, mystical things called x-wings or starts using german whisper logic without any explanation, it's going to put them off - even if there is a link to a companion video that includes that explanation, it isn't going to make the channel welcoming and it isn't going to enthuse new viewers to believe that they can get to grips with variant sudoku if its arcane secrets are so complex that they can't even be dealt with in the regular video.
@@stevieinselby I'd go along with that for complex ideas, such as the Phistomefel ring. But x-wings just aren't that complex. His way of explaining them is just one step removed from saying "I've placed a 5 in this row. Let me ask a facetious question. How many 5s will there be in the row in the completed grid? One. There will be one 5 in the row. So we can rule 5 out of all these other cells in the row". But I'm realistic enough to know Simon won't deviate from his script for explaining x-wings. It's too ingrained by now.