The Return Of Our Favourite Sudoku Ruleset
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- čas přidán 14. 04. 2023
- ** NEW KIDS' SUDOKU HUNT: OUT TODAY **
A new sudoku hunt aimed at our younger viewers has been released this afternoon. Our thanks to Ashish Kumar for his help in creating three of the puzzles from the hunt!
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** TODAY'S PUZZLE **
We haven't done a Quadruple puzzle for ages but today Simon gets to try Polka Dot by PotatoHead21! This is an absolutely gorgeous example of how fun this ruleset can be.
Play the puzzle at the link below:
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Rules:
Normal sudoku rules apply. Digits in circles must appear in at least one of the four cells surrounding that circle.
** NEW KIDS SUDOKU HUNT COMING TOMORROW **
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** NEW GAS PACK: VOLUME 2 IS OUT **
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60 original puzzles by Clover, Bill Murphy and Philip Newman!! Earn party hats and dinosaurs with these brand new puzzles!
** JOIN OUR SUDOKU CLUB ON PATREON **
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▶ SUDOKU PAD - Use Our Software For Your Puzzles ◀
You can input classic sudoku puzzles into our software and help support Sven, the programmer responsible for the wonderful user interface we all use to play these puzzles everyday. The app also comes with 12 handmade puzzles from us:
iOS:
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Android:
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ALSO on Amazon: Search for “SudokuPad”
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Hello Cracking The Cryptic, PotatoHead21 here. Thanks again for a wonderful video featuring one of my puzzles. Honestly, I was not expecting this puzzle to get featured but I'm glad it was. I've been watching your channel for 3 years now and it always brings me joy when I see a new video from you guys. I also didn't realize quadruple sudoku was your favorite ruleset. This was my first time setting a quad sudoku and my intention was to make it a coloring puzzle, and I can see it turned out beautifully.
great fun puzzle
Excellent puzzle. I speak as someone who is not usually the biggest fan of quadruples, but I *am* a huge fan of coloring puzzles and in this case the coloring won out. I was coloring the unique triples for 123s and 789s throughout. And as Simon points out they didn't have to be grouped low/middle/high, but the fact that you did made it much more aesthetically pleasing.
Another brilliant construction!! Love how you used quads!!!
@GSII Sp64b That was just a coincidence. I actually wasn't intending to have 3 in the corner.
@@jimdavis2683 Also it made slightly easier. If it had no hint of entropic grouping i wouldn't even dare to start it.
I love how '3 in the corner' was just about the last digit to be placed.
well it was the 3rd last digit
What does a three in the corner mean?
@@brigonzalez6715 czcams.com/video/xwtdhWltSIg/video.html "Losing My Religion" by REM has a line 'that's me in the corner.' When Simon places a 3 in the corner of a sudoku grid, he sings "that's 3 in the corner..."
Those poor four 8s that didn't get their blue colour 😞
OCD to the fore indeed so.
Not me, scolling though comments to see if someone else said it so I didn't have to.
Lmao
"That seems to want to be a 4 based on pencil markings..." Sometimes trusting the You from 10 minutes ago is the hardest part of a solve! 😂
I do love these types of puzzles. This took me a while to break in, but the logic was challenging but approachable all the way through, so very enjoyable
Someone needs to make a sudoku featuring every rule set, and at least one unique rule set for every region, and call it:
Everything Everywhere all at Once
Refrencing the movie !!
Well, they already did a "nothing anywhere ever at all" with czcams.com/video/La7Yg_rav24/video.html
(And there have been quite a few puzzles that use many rules with every rule only contributing a single clue, like the amazing czcams.com/video/PnWctUoudKk/video.html fairly recently)
That was among the most delightful solves I've done in a while. Quadruples are one of may favorites as well. Looking forward to having time later to watch the video. My solve went down the garden path quite a bit, I'm sure there was a more elegant way to get where I got.
Quadruples are genuinely my favorite constraint, so any puzzle that has quad rules and no given digits is almost always going to be a favorite.
Quadruples needs to be a app, it's a wonderful rulset!
Not a bad idea!
quadruples and fog
Gets my vote
Agreed!
That sheer joy when at the very end the three turns up in the corner. Lovely.
Hi Simon,
We all have kids, so feel free to check on them. We can wait.
Also I must tell you when my grandkids (2 and 4) sleep over, sometimes sleep eludes them. I put on one of your videos and get an enjoyable puzzle to watch, and kids are asleep within literally two minutes.
Win, win😁
30:37 here I noticed I was getting stuck midway through and noticed the coloring right away, really clever to be able to prove certain pairs were indeed one of each
Simon giggling as he finds the 3 in the corner :) Lovely puzzle and lovely solve. As usual!
36:30 - I like how Simon apologizes to us for not having promptly placed the 7 in Box 2, even though that move was only available for about the previous ten seconds or so.
Argh I was sitting there for ages waiting for Simon to rule a 7 out of r3c7 due to the 7 quad in box 3 and the 7 looking at it from box 2!! I love how Simon's mind always manages to find the most complicated solution. Another fun solve, well done! :D
Very intereseting design...half digit half letter solve...very nice when the letter-digits mappings begin revealing one after the other.
31:06 "So that square must be low" and then puts 7-8-9 in it :)
49:12 ... I had forgotten how challenging these sudokus can get
Nice puzzle!
Thank you Simon and thank you PotatoHead21 for a wonderful puzzle! This is the best Quadruple puzzle I have ever done!
I tried. 45 minutes and I got 1 digit...
So much to learn!
Solved on my own! A lovely puzzle that I used a LOT of coloring on (every single instance of 123s and 789s). Enjoyed this one quite a lot :D
*How to Bag a Bobbins*
You mustn't put a triple in a domino
Don't dare do such a bobbinsworthy thing
You mustn't touch an equal-sized fillomino
Or leave two knight's-move digits out the ring
You mustn't fill a cell like Mr Schrödinger
Two digits aren't a paradoxic cat
In Fog of War good progress is the glow-bringer
(You won't get far without a bit of that)
Now when a cell by logic is quite limited
Do fill it with its digit candidates
On German Whispers lines five is prohibited
While four and six are faithful to their mates
If renbans leave you feeling like a lunatic
Let palindromes console you of your rage
While killer clues will test you on arithmetic
And not repeating digits in the cage
On thermo clues keep values in ascendancy
On arrows let the circle be your guide
On kropki dots the digits have a tendency
To double, one the other, either side
Although you may be sweating like you're sauna-hot
You'll have the right solution before long
And if you find a three there in the corner spot
For pete's sake don't forget its special song
If you can keep these simple rules for later
You'll save yourself from comments section mobbings
But more than that, oh so much more the greater,
You'll find you never bag yourself a bobbins.
👏🏻👏🏻👏🏻👏🏻👏🏻👏🏻
😂😂😂 sounds very much like the HP’s Sorting Hat’s song!
@@tessabrisac7423 Not a HP fan but I'll take it 😁 Thank you!
🔥🔥🔥
Brilliant!
I wasn't able to solve this one without a bit of help from Simon, but I did have enormous fun trying - thanks PotatoHead21 and Simon!
This is a well put together puzzle. I had some trouble with it, which means I need practice with quads, and I definitely got that! Thank you.
This was fun! Took me 58:32 but I got there without help and I'm proud of myself for that!
This was a phenomenal puzzle, I actually finished and then restarted the puzzle to approach it a different way. The first time around I used the digits in the quads to constrain each other, but the second time around I treated them as sets of low, middle, and high digits and was able to get about 75% of the grid constrained down to being one of those sets, and from there a lot of the puzzle breaks open very swiftly. Enjoyed it just as much the second time
Simon: "Let's just double-check we've done everything". Also Simon: Forgets the 8's...
This was a wonderful solve to a well-constructed puzzle. Simon's logical prowess is sharp as ever. Well done.
Rules: 09:04
Let's Get Cracking: 09:41
Simon's time: 38m37s
Puzzle Solved: 48:18
What about this video's Top Tier Simarkisms?!
Three In the Corner: 4x (38:57, 45:17, 47:04, 47:40)
Bobbins: 1x (18:40)
Chocolate Teapot: 1x (21:28)
Scooby-Doo: 1x (18:15)
And how about this video's Simarkisms?!
Ah: 19x (12:23, 12:36, 17:43, 18:10, 19:47, 21:40, 21:40, 27:57, 27:57, 29:58, 31:37, 33:02, 36:02, 38:54, 39:44, 41:04, 41:19, 45:03, 47:17)
By Sudoku: 9x (20:03, 26:47, 30:58, 32:30, 33:41, 34:40, 38:04, 44:31, 44:35)
Sorry: 8x (08:43, 08:43, 18:05, 20:39, 20:53, 22:24, 27:50, 36:29)
The Answer is: 8x (10:43, 18:13, 21:13, 32:18, 32:30, 33:28, 34:53, 37:00)
Lovely: 7x (29:48, 36:55, 36:57, 43:20, 43:22, 44:04, 46:35)
Hang On: 4x (24:15, 29:50, 42:51, 46:23)
Cake!: 4x (06:03, 06:13, 06:47, 07:07)
In Fact: 3x (04:31, 11:27, 11:31)
Clever: 2x (18:07, 48:27)
Fascinating: 2x (00:51, 16:41)
Obviously: 2x (03:00, 03:55)
Chromatic: 2x (36:40, 41:52)
Pencil Mark/mark: 2x (09:48, 38:15)
Useless: 1x (18:03)
Goodness: 1x (28:46)
Out of Nowhere: 1x (43:42)
Recalcitrant: 1x (26:19)
In the Spotlight: 1x (47:44)
I Have no Clue: 1x (41:42)
Beautiful: 1x (47:46)
Brilliant: 1x (07:29)
Extraordinary: 1x (00:59)
Bonkers: 1x (01:19)
Shouting: 1x (40:04)
I've Got It!: 1x (12:41)
Whoopsie: 1x (32:57)
We Can Do Better Than That: 1x (21:40)
Next Trick: 1x (13:26)
On the Cusp: 1x (40:59)
Nature: 1x (26:19)
Symmetry: 1x (03:10)
Most popular number(>9), digit and colour this video:
Twenty One (3 mentions)
Two (73 mentions)
Yellow (20 mentions)
Antithesis Battles:
Low (7) - High (3)
Even (2) - Odd (0)
Column (16) - Row (7)
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!
Simon points out at the end, that the selected digits in the quads don't really matter, and that PotatoHead likely chose them to make it entropic. Regardless of the exact reason, I would like to assume he also specifically chose them in a way to put 3 in the corner.
Yes, I chose those digits to make it entropic, but the 3 in the corner was just a funny coincidence
This is a really nicely constructed Quad puzzle and well deserved feature for an underutilized constraint imho. This was also partly the inspiration for my own recent quad puzzle (if you’re looking for more, Simon 😉). A nice flow from start to finish so kudos to PotatoHead.
Would love to see Simon do a quad puzzle from you...any puzzle that you set for that matter. 🙂
@@davidrattner9 ditto!
@@davidrattner9 Agreed.
@@longwaytotipperary And I agree with you, too. 🤣
@@emilywilliams3237 😁
12:55 "That's the world's most underwhelming six" - Simon, never take up cricket commentary! :D
Thanks, fully availed myself of the opportunity to get my colouring pens out.
I would really love to have this celebration effect (from this other video some days/weeks ago) permanently in the software whenever there is a 3 in any corner!!
PS: You missed to blueify some 8s! ;-)
Wow I really struggled on that one! I normally only need to watch the video to get me started and then I can do the rest on my own but I had to keep coming back to the video on this one!
It was a tremendous adventure because I was constantly confused by the countless pencil marks. But in the end I still made it .... after ages. A great puzzle.
Dang it! I got quite far in but just couldn't see that lynchpin deduction (no spoilers). With Simon's help on that I solved the rest of the puzzle myself but still have to chalk this one up as a loss. Well played, PotatoHead21.
Great puzzle!
Don't take offense when we scream at you, because while we scream, you crack different and harder deduction.
The junior hunt by Anish Kumar is great - fun and not trivial - a well set challenge
15:21 for me. Awesome puzzle, such a nice solve path!!
I’ve got a nonuple spiral galaxy puzzle for Mark. Nine circled cells are in the grid, each of which appears equally spaced in the 2nd/5th/8th columns and rows. The circled cell is the center of a spiral galaxy and also has pencil marks in it indicating the digits in the cell with the circle and the 8 cells surrounding the circle (9 cells total indicated by a circle, hence ‘nonuple’). The same pencil marked digits also appear in the spiral galaxy. Some digits around the grid are given to get you started.
Looking forward to seeing this on the channel!
I really like videos 20-35 min solves, gives me time to watch on lunch 😊
I liked the "too clusterphobic" quote :)
Solved it in 35 minutes! 🙂I also like this ruleset a lot.
01:52:32 yay! Not bad for being half sleep. This was really fun, I also like this ruleset.
This one took me forever, but when I got to the end ... I was down to mostly 7,8,9 and 4,5,6 and in the bottom squares I had 1,3 pairs. I guessed and put in a 1, and the snowball affect worked. Then I went back and put in 3 and it still worked. I believe there are several solutions for this.
Regardless, I enjoyed this one a lot. Really had to think outside the box on this one.
this was a pretty nice puzzle, pretty approachable, I had to color all the way from the start tho, it was leagues easier for me that way
Wonderful. I saw this on LMG almost a month ago!
33:39 for me. Nice Quad puzzle!
For Simon:
Oh, nine. It's bigger.
It's bigger than two, and blues are not green.
The Renbans I must go through, the difference in the lines.
Oh now I've said, "Twos match". I've messed it up.
That's 3 in the corner.
That's 3 in the spotlight, losing it's religion.
Trying to keep an eye on 2
And I don't know if I can do it.
Oh no, I've said too much.
I've set it up.
I thought that I heard you shouting.
I thought I heard Maverick.
I think I thought I saw him fly.
German whispers, never placing 5 there.
I'm staring at the grid now,
Trying to keep a five on blue.
There's a Phistomefel Ring thing.
Oh now it's SET - too much! That's beautiful!
That's 3 in the corner.
That's 3 in the spotlight, losing it's religion.
Trying to keep an eye on 2
And I don't know if I can do it.
Oh no I've said too much.
Mark set me up.
I thought that I heard him laughing,
I fought, then I found a string.
I think I typed a four not five.
Consider this.
Consider this the hint of the century.
Consider this the secret - that 45 is sweet (nailed).
Polarities and parities come flailing around
And now a palindrome. I've messed it up.
But that was just a dream
Five, nine, lime line
That was just a dream, just a dream, just a dream, dream
best wishes,
Dave
Too busy to try, so I just watched. Great solve, it was a pleasure to watch.
It's a beautiful grid n i also love quadruple sudoku❣️
I thought I would re-prove the Phistomefel relation. That is a very difficult or straightforward task, depending on the approach. :-) I stared at it for about 20 minutes then the right approach popped into my head and it was done in seconds.
My OCD would like to register a formal complaint about Simon not seeing the 7 pencil marks in box 2, which would have told him that there is no 7 in r3c7, which means it has to be in column 7 in box 6, and thus there must be a 7 in r7c8 or r7c9, which means the dot between boxes 7 and 8 can't have its 7 in row 7, pushing it down into r8c3 or r8c4.
And then he gets a 6/7 pair in row 1 of box 3 and *still* doesn't see that that rules 7 out of r3c7.
I guess it really goes to show how many different directions your attention is pulled in simultaneously with this kind of ruleset
Nice puzzle! Solved in 27:50.
First I’ve heard of licorice/liquorice allsorts - sounds yummy! 😋
There's a Wikipedia entry for "Liquorice allsorts"
Bit over 2 hours for me. I got stuck twice because I didn't think to use the coloring in either case. The second time I used colors, the rest of the puzzle just turned to some simple Sudoku. It was a really fun puzzle though! I loved thinking about how digits were getting forced into and out of certain places by the interactions between the quads.across boxes.
At 32:14 Mark says there's fireworks going off now and at that very moment he makes a good valid deduction. However, by amazing coincidence, there is a fireworks pattern of row 4 and column 3 using 789 he has identified. Perhaps he subconsciously saw the pattern as well.
*Simon, not Mark
25:25 in the video is about as far as I was able to get on my own, but then I got stuck, so I followed along with the rest of the video and finished in 26:31.
The only thing I missed was that the 4 in box 1 was in the 3rd, 6th or 9th positions and that made this MUCH more challenging than it was supposed to be. I had to struggle with colors and letters lol 🤣
Although coloring the low, middle and high digits could've helped a ton in Simon's solve as well :D
41:43, I did peak at the solution to see how to start, I totally didn't see the 456 triple in Box 4 ruling a 456 out of r4c3. Was able to go from there. I was a bit worried when I started to color, but that ended up being what I needed to finish the solve.
Considering what you said around 2:35, if you don't want to explain a theorem on many videos, I suggest you to make videos just to explain that hidden rule. In case of need during a solve, link in the "more" tab the video of the proof. This is a suggestion that can make CTC videos more friendly to newer viewers and give them a chance at discovering more of the channel, maybe it'll get them a little more interested in it as well.
I think they make a point of making the videos self-contained specifically with newer viewers in mind, someone who clicks on to a video on a channel for the first time is usually not yet highly invested in sticking around, and if a few minutes in the presenter says "to understand this video you need to watch a different video" they're a lot more likely to say "never mind then" and watch something else than to follow that rabbit hole...
There was a vid on that, it needs linking.
@@highpath4776 I'm not sure if the irony in your statement was intended or not.
@@HunterJE agree
I loved the ‘this is just as useful as a chocolate teapot’ 😂
Now every time he says that, I wonder if he's used the chocolate teapot he was sent recently yet.
most british pun ever
Along with "Ashtray on a Motorbike" and (a new one for me) a "Concrete Parachute" 😀
Or a "Lead Zeppelin" (which actually was, if the myth is to be believed, how "Led Zeppelin" (the band) got their name 😎🤘 - they simply left out the "a" _just because_ ).
@@poppyholly1759 I like using 'a parachute in space'
This one was really hard for me, actually. Took me 1:14:11 after coming back to it when I was finally more focused.
Box 3 had so much hanging numbers im screaming
I'm so glad you pointed out at the end, Simon, that the digits appearing to be entropic was a constructor choice for beauty and did not really signify what entropic usually does when it is a part of the ruleset explicitly. Regardless, I tried this puzzle myself before watching the video, got mixed up somewhere, watched the video in its entirety, and I will give the puzzle a try again soon - very enjoyable - thank you!
Fun finish
Simon is such a gem,
I will go as far to say that he is definitely one of my favourite people.
Forgot to fix the 8 in to Blue!
76 min for me
unless I missed it you didn't announce it's difficulty (4 stars on logic master germany)
Interesting - I assume I made a mistake but 1 and 3 seem to be interchangeable in the solution - if you change 1’s to 3’s and vice versa, the software says the answer is correct. Only noticed when I tried to check my results against Simon.
The '15’ quadruple clue in box 3 needs a 1. It wouldn't have one if you swapped all 1s and 3s in Simon's solution.
The software checker only checks for repeated digits, unless the solution has been input. Then you get a slightly different completion message.
I remember that knight's move Phistomafel ring single digit proof. I seem to remember that it also works with x-diagonal constraint puzzles. Am I right?
You are right. The proof is even simpler - where does the digit not in the Phistomefel ring go on each diagonal? Only in box 5. So that digit in box 5 must go on both diagonals, i.e., in the central cell.
Yes
57:42 for me - long one!
simon imagine a knights move sudoku with the one digit in the middle then introduce a schrodinger cell 😂🙂 oh the pain that would cause..
Uff, that took me entirely too long. I just couldn't spot any useful easy logic, and had to take a long, roundabout way of figuring out potential cell candidates and doing funky deductions to eliminate them. I didn't get my first digit until almost an hour in, and still only had a handful of 2456s after two hours. It wasn't until the third hour approached that I finally broke its back and staggered to the end. My final time was 3:14:57.
that was a difficult one
Completed in 22m04s
33:34 for me. nice medium difficulty.
35:06 for me. trippy.
Hey, why did Sven remove the new 3-in-the-corner party popper again...? That was just such an innovation;-)
It is implemented in the beta version of sudokupad.
And what would the beta version be, if I may ask?
all the eights aren't blue.
the way you found the first 6 is incorrect since because 6 isn't in r3c4 that means 7 can be there so you can't rule out 6 being in r3c5 and r3c6
You checked every other digit but 8, and there's an 8 sitting there in box nine waiting for its blueness
And three more in boxes 1, 2 and 7!
Hey Simon on august 31st I’ll be turning my favorite secret
14:04 I still dont anderstand how you do that. I have the sudoku open and I can not figure out a way to solve it, and I do not anderstand how you do it. I see another way
Considering this is our sudoku grill and 0 is an empty cell, this would also be right :
003 108 200
002 063 100
000 027 000
000 030 000
000 000 000
000 000 000
000 000 000
000 000 000
000 000 000
How could he have possibly missed that 8 @40:50? He's literally staring right at it. There's and 8....
That does what, besides removing a couple of redundant pencil marks? Am I missing something?
@@RichSmith77 it resolves the 89 box 2 squares over into a 9. Which leads to more digits
@@shotdoctor5869 No it doesn't. Those are corner pencil marks, not centre pencil marks. It removes 8 as a candidate from that cell, but there are other options (123) besides 9.
@@RichSmith77 Damn, my bad. Still new to Sudoku and didn't realize the difference. Apologies to CTC.
Kind
I don’t understand the logic at 14:10. I see how the right vertical domino can’t be 123 in both cells as explained, but why does that mean the left domino MUST be? Why can’t just ONE of the right hand cells still be 123, making 5 cells in box 2 selected from 5 digits?
But that's exactly how the logic works: Because the 6 cells in box 2 need to be selected from 12378 plus one additional digit (and that additional digit can not live in the 4 rightmost cells, because those are already filled with 12378 only), the additional digit needs to live in the right vertical domino, leaving the left vertical domino to be filled with the remaining two from the necessary 1-2-3.
@@cae13yt Thanks. I had brain freeze on this somehow!
I solved 12 correct digits without watching the video until I broke the puzzle and then trying to fix it was a nightmare. But I'm still proud of those 12 digits. Solving this type of puzzle is honestly a pain in the rear end. Not a favorite sudoku ruleset at all.
Poor 8s.
Am I the only one yelling it can’t be seven throughout the video
69:00 Exactly. (Nice!)
Wow Shady Simon to the extreme today, assigning a color to an *already known digit* is a step beyond carrying forward coloring after it's served its purpose in identifying an unknown digit...
43:00 Simon ignoring again the obvious. r1c3 is yellow, even I can see it. Does he do this on purpose? I always wonder....
How is it obvious that r2c3, the 2, is not yellow?
Edit: Okay, I see how it becomes obvious 35 seconds later. Not sure it's that obvious before you look at box 8 though.