"I'm Blown Away"
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- Опубліковано 19 вер 2024
- ** TODAY'S PUZZLE **
What an extraordinary time this is for variant sudokus. The last few days have featured exceptional puzzles and now here is yet another: Magnus Josefsson's Chaos FilloSudokumino has been praised to the nines by the community and now we get to solve it. It's weird but it's utterly wonderful.
You can try it at the link below:
app.crackingth...
Rules:
Place a number in every cell of the grid such that: 1. There is a 9x9 subgrid that forms a valid standard sudoku; and 2. Disregarding the interior 7x7 area of the sudoku subgrid, the rest of the grid (including the 1-cell wide perimeter of the sudoku grid) forms a valid fillomino. [Standard fillomino rules are as follows: a) Divide the grid into regions of orthogonally-connected cells and enter into each cell the size of its region; b) No two regions of the same size may share an edge.
An example puzzle can be seen here:
logic-masters....
** A New Series Of Videos On Patreon **
Simon & Mark have made a video in which they collaborate to solve the puzzle Jabberwocky by DadJokes as a special Patreon bonus video. The feedback so far has been wonderful - thanks to all those who've taken time to comment. Jabberwocky can be played here:
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** Our New App Is OUT **
Our new app is OUT on App Store AND Android AND ON PC (via Steam)!!
We've completely revamped the interface. Now you download the basic app free and you can choose to download additional content. So there's a FREE pack of puzzles by Prasanna Seshadri and a paid pack: DOMINO SUDOKU!!! Prasanna's free pack includes one puzzle for each variant of our existing apps (so there's a killer sudoku, a miracle sudoku, a thermo sudoku, etc). Domino Sudoku is a pack of 100 handmade puzzles (40 on launch, 5 added each month for a year) by some of the best constructors in the World: Phistomefel, clover, jovi_al, Christoph Seeliger, Qodec, Sam Cappleman-Lynes and Richard Stolk have all contributed sudokus!!
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Thank you so much for featuring my puzzle!
Simon, I am always impressed by your ability to so calmly and pedagogically explain every deduction while solving the puzzle for the first time. You really did a masterful job making it all understandable even for viewers unfamiliar with fillominos.
On another note -- In case there is someone who liked this puzzle but thought it was much too easy and that the grid was way too small then you are in luck :). I have another sudoku-fillomino hybrid coming up on logic masters germany in a week or so that should provide quite a lengthy challenge.... :)
Amazing puzzle Magnus. It was great fun. Thanks!
On this puzzle - magnificent! On the upcoming puzzle 😳
This was very fun to watch Simon work through - thank you for sharing it! And I agree, his ability to explain all of his logic is indeed impressive and very helpful.
Beautiful, absolutely wonderful construction this puzzle was from you!! Thank you sharing it with us !!
When he said "eulogize" I thought you died. Glad you're still with us, haha
"I dont know if people will accept this"
Simon you could tell me that the clouds today formed a perfect killer sudoku in the sky and I'd accept it
Ha, isn't that the truth!
Same!
It was so obviously broken and explained well, it was pretty insulting to the intelligence of the viewers.
@@tezcharold While he was explaining it the only logical conclusion you could have come to already was "How many parameter cells do you need at the edge?" So yeah, it kinda was a little bit weird for him to ask if viewers would accept that.
@@tezcharold No, I understand his concern. If you think about his expanation, it was intuative to understand but it wasn't rigorously proven. Its proven enough to be useable, but if it were a mathematical proof, it wouldn't hold up to scrutany.
Consider Simon's personality, and use him proving any Set theory puzzle. He shows it using absolute terms in multiple ways by treating the grid like an algebra equation. Whereas this proof was very "feely."
56:11 "Right, that cannot be 4."
28 seconds later
"It's 3 or 4"
Finally found this comment after a minute of scrolling. Surprised it’s this far down. Totally agree with you. Very funny moment. 😂😂😂
Luckily it only took until 58:02 to notice
I was very yikes at that too 😂
IMO you described the logic on not being able to leave a one-wide strip on an edge perfectly sufficiently to use
Maybe not to that 2 year old child he wished a happy birthday in the beginning, but to most others probably
@@RickyRatte lmao 😂
Agreed
i would say that for myself i intuitively understood and accepted it. however, i'm not sure if it would meet the criteria for a formal logical proof, which is i think what simon was concerned about.
it was of course true, because simon's brain has the most insane knack for intuitively understanding things like that!
@@dwebb2805 the proof I used is that the best case scenario is high digits on the top and bottom of the column and low digits in the middle. Taking the corner digits vertically out, you don't have enough squares to fill in all the low digits.
I downloaded the app and completed my first ever thermometer sudoku today!
Nice
Not sure if this is rigorous enough either, but proof that the sudoku grid can't be within 1-square of the puzzle edge:
Suppose a 9x1 column had a best case arrangement {875312469}, allowing 9 and 8 fillominos to escape freely, 7 and 6 to escape but sealing in a 1x5 region. You're left with 10 squares to populate 5+3+1+2+4 = 15 area worth of fillominos.
Yeah, that's actually the logic I used for this deduction when setting the puzzle :). No matter the arrangement only 4 polyominoes can escape and the remaining five would have a maximum of 10 cells.
Ahhh, this Sting guitar intro - such a good song and such a lovely version you played! Also such a lovely occasion - i don’t know the birthday girl Alexis, but I’m sure you’ve made her very happy with that thoughtful gift.
While I’m already commenting: I really appreciate you both on this channel for always taking the time to be kind to viewers, be it through little birthday greetings, your general friendly, polite, and calm conduct on screen, or when taking the time to explain things to new viewers. It’s such a welcoming place to be on the internet that I always want to come back to it even if I have little time in the day. All on top of those very interesting and difficult puzzles of course - that’s what hooked me in ca. 2.5 years ago! - but we all know already that this channel is the home port of great puzzle makers and puzzle solvers alike.
I’m glad you’re here to share the joy of puzzles with us so many years into the channel (and somewhat less years into the pandemic), that you do it in such a friendly and welcoming way, and that so many people have come to participate in the fun in a (for the most part) respectful and kind manner. Thank you for your work and efforts!
Very lovely comment! Totally agree!
Very well expressed - I agree!
Beautifully written about Simon and this entire community!!
What is this song called?
No way you went for this! Super courageous, good show
As many times as Simon has appologized for something that people were "screaming at the screen," I never actually screamed at the screen until today. The 9 in r1c1 had me screaming "Simon, do sudoku! It's a nine! IT'S A NINE!"
Same I felt it today too but with the 2 in r4c9.
The "A"s from the triple 10s are not connected properly to this day... (probably)
83 minutes? And I'm out of munchies 😔 Halcyon Days indeed, thanks in large part to our hosts. Deep gratitude to them and to all who tapped their creative source, 81 squares at a time...or more.
Very well said. And I also was out of munchies by the end of that - but what a beauty.
me: i'm tired, i'll watch the beginning of the video and then go to sleep and watch the rest tomorrow during breakfast
simon: ...and we'll be back later with another edition of cracking the cryptic
me: no way it's been an hour and a half already
Same
a family sized ctc is just what i needed to lift my spirits today. hope every one has a happy week!!
You too Leo!
The line through the A's in the top row... I won't be able to sleep!
😂
Love that Sven has added a 2001 reference when the software can't give a solution rather than the old style of just highlighting everything red as an error
What an absolutely stunning puzzle! We've been having a real sudoku feast these last few days. Fantastic solve as always Simon
Nowadays I don't even expect a video of less than 1-hour in length, I set my schedule to accommodate it and it feels like I have a lot of spare time whenever it's a shorter video... Not complaining about short videos, just pointing out how it fited so smoothly onto my daily routine the long ones that I don't even noticed it...
Repeating myself here again: brilliant puzzle, brilliant solve! That was a very enjoyable hour, thank you!
I first watched Simon's solve. There were a few steps I couldn't have guessed (the 7s), and a few others I noticed before him (the 1s) and shouted at my screen. Once he discovered the location of the sub-sudoku grid, I was so high on joy and excitation I had to give the rest of the puzzle a try by myself. I solved the rest alone in 53min.
I'm a bit sad I didn't solve the entire puzzle by myself, but still very happy I did solve the end!
A big thanks to Simon and Mark for making me discover the "real" sudokus and puzzles. I'm realizing that my level in puzzle solving has so much increased: at first I wasn't able to solve the same sudokus as you, and now I'm able to solve even the hard sudokus (considering the difficulty proportional to the length of the video). So a big THANK YOU!
I have scrolled through the comments that are here as I am finishing watching this video, and am delighted that they are almost entirely very kind, and more than kind, very highly enthusiastic about this puzzle and the video. Thanks so much, Simon, for a wonderful evening of thinking and understanding. And I am glad that you have begun to note more often when we are granted Knowledge Bombs on CTC - it was a regular thing back when I started watching sometime middle of last year, and (though the KBs have not been fewer) the mention of them has been less often lately. I feel as if I return to my roots here every time you grant a KB and identify it as such!
Always beautifully said and response Emily!!
@@davidrattner9 You are very kind, David.
WOW, simply genius. I am again speechless as how this type of puzzle can exist and have a unique solution. Amazing setting and really enjoyed your solve Simon. Thanks CTC for my nightly entertainment, look forward to watching every day.
Thank you for your kind words! This puzzle was actually relatively quick and painless to set compared to some others :). If I recall correctly it took around 6-8 hours for the whole process.
@@Khellr0s It blows my mind that something this impressive can be constructed in such a short time. Well done sir.
Simon uses logic not only in Sudoku's but also to explain softwarebugs 34:55. Just brilliant!
That was amazing! And yes, you did completely prove that the grid couldn't be within 1 cell of the perimeter before doubting yourself and going round again. It might have helped if you'd coloured alternate 3×3 boxes of the sudoku grid in a different colour to help visualise it as you started drawing the filomino lines over it, but that is all that I can suggest to improve on things!
It is obviously very important to announce that you are playing God of War. 🤣 Good luck to you, it can be tough (depending on your difficulty settings) and I hope you enjoy every minute of it!
Also, I love the long videos. They're my favorite. I use the videos to help me get to sleep, as the logical process is very relaxing for me, and the longer ones make it easier. That being said, I enjoy all the content from CtC, regardless of the length.
What a puzzle!!!! I watched the whole one and half hours in a breeze! This is one of my favourites so far! 👍🏼
Wow. I have never seen such an amazing and creative puzzle. I am impressed.
Thank you very much!
41:19 for me. What a fantastic puzzle indeed. It’s absolutely amazing that it is solvable at all, kudos to the setter for creating such a masterpiece.
Impressive! 46 minutes for me. The puzzle maker has promised us a second harder one which he'll release on LMD in the next week. Hopefully Simon does it as well.
That was GENIUS. Absolutely ridiculous. Bravo Magnus, and bravo Simon!
Regarding a proof that the sub-grid could not be beside a one-cell strip, it helps to think about the secret: every digit in the sub-grid’s outer columns or rows differ and are part of a valid fillomino and therefore must be able to access 45 cells between them.
I watch ctc for so long but this is the best. It was little hard to watch because everything was so small but I enjoyed it so much. I hope there will be much more puzzles like this
Incredible puzzle solving and an incredible puzzle; I especially appreciate the de-delinearing at the end!
1 of the first lengthy videos that i watched all the way thru.
such a masterful puzzle this is and a joy to watch you solve.
The birthday callouts are actually the cutest thing ever. They happen every day, but I couldn't imagine how happy I would be if I got that present
Beautiful puzzle! Another of the jaw droppers this week! Nobody has to watch if they don't like the long ones, but personally they're my fave!
Very chuffed to see this here. I was one of the 20 recommenders - this puzzle is stupendously good (and deserves a prize for the name alone). It took me 2 hours - I could not tear myself away - a time I'm happy with in light of Simon's time. That 7 deduction is indeed truly delightful.
Thank you for your kind words and the recommendation :).
I am extremely pleased with how cleanly Simon drew the lines in this puzzle. It's often a minor concern of mine with puzzles like these that involve lots of line drawings and coloring that the grid will end up looking rather chaotic. Of course, it's expected that the grid will look chaotic during the solve but I personally love seeing how crisp and clean a fully solved puzzle looks; especially puzzles with a variety of colors and markings.
I am very thankful for his delineation touch ups at 1:21:07 and 1:21:17, they were extremely bothering me the whole time.
What an absolutely fantastic puzzle. It's surprisingly approachable too if you're fully comfortable with the rules
What a beautiful puzzle and a perfect bedtime treat!
I wasn't even going to try this when I saw the time. However, I jumped in and it was a lot of fun with some fabulous logic. Great job, Magnus... and Simon!
The pace of this video is testament to the skill of both Setter and Solver.
Usually if I see 1hr+, I assume it’s going to include long periods of paused solving for Simon to think through the logic and spout off some frustrated bingo phrases (and I still watch regardless).
However, this solve felt pretty consistent in the movement from bit of logic to bit of logic, making for just an incredible flow of solving which made this feel like the shortest 1hr+ video ever on the channel. Cheers to everyone involved.
This is truly an astounding puzzle. Took me a hair over 2 hours, and every breakthrough was well thought-out and felt so intentional. This is an all time great for me. Thank you for continuing to highlight and share gems like this!
Thank you, I'm really glad you liked it! What you describe is exactly the experience I and other setters aim for when setting puzzles like this.
'Dip their roots into the loam of blue' is a nugget that only Simon is capable of giving us.
87 minutes for me. Very innovative and also enjoyable to solve
This was by far my favorite video I’ve ever watched on this channel. It literally felt like a treat to watch because it was so incredible :D
1:07:10 I came to this point and noticed a sort of meta insight that you could use to define these early:
The number of cells available for the 8 in the 4-8 pair is actually 9 so you would have to place a 1 fillomino to complete it.
If the 8 was below, then the 1 fillomino could go in 2 locations with no restrictions meaning the puzzle would have 2 solutions.
Assuming there is only one solution as we do on this channel then we know that the 8 must be above, albeit through the presumed uniqueness of the puzzle.
Of course it gets filled in for the single solution by sudoku later but I thought it was an interesting notion and I wonder if there's any cheeky puzzle built where meta knowledge about what causes multiple solutions would have to be used
So happy you found the missing/discolored lines at the end.
That was the most fun, I've had solving a puzzle of any kind. I had the hardest time visually, with the edges of the Sudoku, And ended up having to back out a whole bunch of moves. It took me a considerable amount of time to solve.
Honestly this was such a great puzzle! I don't know if I'm getting better at variant sudoku or if this seemed fairly approachable, obviously at the beginning it seemed very daunting but as the video progressed it just seemed more and more like a very fun puzzle.
such a beautiful puzzle! literally, look at this grid! fabiolous!
This is one of the very rare ones where I was a bit quicker with some conclusions and I suddenly feel very powerful. These videos are always so comforting either way, but when I get what‘s going on it‘s even better
At 1:07:15 there is a fillomino uniqueness trick one could use to disambiguate the 48 pair. If the 4 goes on top, there are two possible placements of the lonely 1 in column 1 that cannot be disambiguated. If the 8 is on top it forces the placement of the 1 in column 1.
I used that trick in my solve and hated it. Uniqueness arguments always feel like cheating to me.
The puzzle overall was absolutely amazing though
Every Breath You Take was fantastic! I've always found that song super complicated to play but you made it sound so easy
Just over two hours for me, and I somehow coloured all the tendrils and it just looks magnificent. I sent screenshots to some friends that don't even do Sudokus, just because I feel so accomplished after this solve and it looks so pretty :) Thank you for sharing this.
Absolutely amazing, another Stellar puzzle in a week of outstanding puzzles, took me over 2 hours but felt like 30mins as completely absorbed, well done Magnus
i was able to place the grid fairly easily, but i had to keep referring back to the video because i got stuck in the fillomino quite often. brilliant concept, puzzle, and solve! seems tricky at times but there is always a simple logical explanation for every step, and that's what i love about it. thank you for showcasing this one, this channel is helping me to steadily improve.
This one was really enjoyable. I found it challenging enough to be engaging, but the logic is straight forward enough that I never felt stuck. It took me a long time, but I was able to keep making steady progress until it was finished. Awesome puzzle!
Love the guitar intro! What a week for fantastic puzzles and guitar pieces!! Hopefully can watch the live stream Thursday!
So glad you were able to join stream today!! Hope you enjoyed it!!
@@davidrattner9 I did! It was fascinating!
@@longwaytotipperary so glad and fascinating was right!!
@@davidrattner9 really impressed with how humble and down-to-earth he is!
39:04 with a time less than half of this video's length this has to be one of my best times. Usually I would never have attempted a puzzle that is accompanied by such a long video time, but the combination of sudoku and fillomino was really intriguing to me. Great puzzle, great solve, great time :)
The puzzle solving people are by far the most wholesome internet community I’ve ever had the pleasure to stumble upon
I don't understand why you worry about the video length so often. I mean, apart from the fact that a lot of people (including me) enjoy the long videos even more, you know that youtube has buttons for pause, fast forward, rewind and even stop, right? 😂
Indeed, UA-cam has thought of everything to accommodate any degree of time available for watching CTC videos, hasn't it! 🤣
I think it’s because both Simon and Mark have a time limit for puzzles, because of the editing and also because of the fact that they do puzzles every day.
@@starbies552 ok but then they should apologize to their editing team 😂
@@series161 lol I think they edit themselves
@@starbies552 so they should apologize to themselves 😅
ok sorry but then i didnt unsterstand what you were saying with the time limit for puzzles?
1:21:07 Oh thank god you finally found that! Was bugging me for so long during this awesome solve.
It's the line across the A's that is bothering me!
@@sarahnash7174 Got my hopes up when he fixed the green line and the border at the 5, but alas =/
what a tour de force of setting and solving
The puzzles featured on this channel continue to be amazing, again and again.
Simon: That's 2, which gives me a 2 by sudoku!
Me: *realizes I jumped to conclusions half an hour ago* Well, _I_ feel sheepish.
Can't say how glad I am that you found the missing edge as well as the green edge. It would have kept me up at night, knowing...
Simon: Plays "I'll be watching you"
Us: Yes, yes, very subtle, we'll be watching you Simon, don't worry. LOL
Normally I am strictly in the "if the video is
57:00 elegantly proving a cell cannot be 4 then immediately marking is as 3 or 4 while not disproving any other numbers giving me heartburn knowing that cell is a 7.
It’s a pity that the middle sudoku box wasn’t a magic square - would have been a real puzzle turducken ! A challenge for setters to be sure … A few points to note: 30:45, that orange sudoku grid is impossible due to the earlier logic (there is a 1 in R3C13) 56:38 Should be “3 or SEVEN only”. Well explained solve otherwise. 👍
I now demand a turducken sudoku!
This is the best puzzle we've had on this channel, that I've seen. The fact that it was so enormous while also having a very nice logical flow was amazing. The hand off of the sudoku logic to the philomino logic was flawless.
I personally enjoy the longer videos. This is also the only channel I watch on normal speed (all others I watch on 1.75x or 2x speed). The logic and explanations provided in these videos feel very much worth the time. I've even gone back and watched several videos in a row because I was so intrigued.
I put in well over an hour on this one and broke ... but I'm not ready to quit; just no time to continue today. Will come back to this one on the weekend ...
... and indeed, I gave this a second shot and was able to finish with an additional time of 48:32 (it helped that I did find the sudoku's location the first time around; my error involved filling in the left side of the grid). What more is there to say; this is simply remarkable.
Astounding ... truly astounding.
Amazing puzzle, amazing solve! The standout for me was seeing the 9 in the top left of the sudoku before Simon and swearing black and blue he had broken the puzzle, and then when it worked... Amazement!
Very proud of Simon for lining the right edge of r4c1 (of the 9x9 sudoku grid) in the 11th hour. Even in a puzzle as loaded with information as this one, he still manages to clean up nicely.
I was bit annoyed by the line in row 1 still...
... except for those 4 "A"s in row one which are still crossed out. But that's just my inner Mr. Monk taking note of even the smallest details. 😇 🤓 😁
Simon, that was a great solve, to a great puzzle! Thank you and thank you mr Josefsson
This man still entertains me despite the fact that I cannot understand a fifth of what he's doing. Amazing.
Just the pure joy in his voice as he’s about the start the puzzle is so cute
55:18 Like Mum always said; No jiggery-pokery till you're married.
lmao 😂
1:13:18 How does sudoku place the 3 in this cell? It looks to me like the 3 could still go into r5c8 (of the sudoku subsection)
Because it cannot be 5, 6 or 9
This introduced me to the "Fillomino" , Had to click it when I saw it had a 9x9 inside of a 16x16.
Absolutely amazing puzzle! How they manage to set this is beyond me!
55:58 😧proves that R8C4 can't be 4, proceeds to mark it up as "34" while saying it can't be 7 🤦♂
*ETA* : didn't take too long to fix 👍
Very good puzzle. Enjoyed the solve.
Felt like some of the simpler points to explain (sudoku grid must be 2+ cells from edge and not border 1 or 10) could have been covered more quickly but appreciate you’re making videos accessible for everyone (and it’s easy enough to skip 5s forward).
Cried when you used A instead of T for the tens 😂
A is hexadecimal for 10.
42:51 Simon - "This is a string of A"
Me - "That is a string of AAAAAAAAA"
It seems pretty clear to me that the solution IS, in fact, correct. The software just doesn't recognize the A is equal to 10. Correct me if I am wrong though. Either way, what an astounding puzzle! Very daunting undertaking! Bravo Simon! You never cease to amaze your favorite people!
checking the rules, going back to the video to understand the rules...
good start :)
EDIT: after 92 min I did it without any help :)
had a really nice flow, slow but steady making progress
Yet another astonishingly good puzzle. Brilliantly set and solved. Love the novelty of this ruleset and love the solve path, from the sudoku grid placement to the fillomino bits to the last sudoku bits. We really are on a brilliant run. The length of this video was not a detractor at all, as the pace was still very good, it’s just that there was a lot in the puzzle to be done! Only note: there is an inconsistency in the top left with the line drawing, you left a line through the As!
It called me Dave when I had As in the 10s, and I figured I'd logged on as my husband. Then it called you Dave, as well, Simon, and I'm going to be chuckling all day.
A puzzle very closely related to "BGA fanout" in electronics :-)
Seems more of a QFN. BGA would require a multiple layer sudoku.
@@mccoyn6144 You are right! (and it would be very interesting to see that puzzle too!)
BGA fanouts give more interesting search results though.
What a delightful puzzle, loved how the fillomino and sudoku interacted
This would have been a great dual solve to have both of you help explain the logic. And it would be nice to see Mark dip his toe into more types of puzzles
A brilliant puzzle again! Thanks for the beautiful movie ;-) Yet one single remark: in terms of colourblindness, most colours within CtC work rather fine nowadays, but filling an entire grid with merely purples and blues is a disaster, for those colours are very close together...
Solved in 60 minutes. What a beautiful puzzle.
If you want to be bold and use uniqueness, you could resolve the 4-8 pair on the left earlier. If the lower one was an 8 it would give 2 options, as the 1 could go where it is, or in the top cell of that column of 8s.
33:40 - yep, delighted it was the 7s that puts the boxes in that makes the grid. I found that and could see no other way, was hoping to see you find it, and not something easier but less cool.
I very much enjoy the way that it looks like the software is screaming about there being a 10 in a sudoku puzzle
I've been enjoying your videos for over a year now but only recently have I had the courage to actually start attempting the showcased puzzles myself. I must have been delirious when I decided to give this one a try because who in their right mind decides to attempt a sudoku when you don't even know where the sudoku is 😅. Anyways I'm writing this comment because I DID IT! I managed to finish the puzzle on my own! Learning the various restrictions of where the 9x9 border could and couldn't be was absolutely amazing and I truly enjoyed every moment of this puzzle.
Simon: Do have a go!
Me: (Looks at runtime at the video)
Me: No thanks. I think my head will hurt when I try to solve this
Wow! Such a beautiful puzzle and beautiful solve by Simon!
Wow! Amazing puzzle, and impressive solve!
It's hard to tell without the distortion but was that every breath you take by the police that you just played if so kudos to you That was very beautiful
At least thrice a week you blow my mind... 🤯
thank you so much for fixing all of the little green and black lines, it was very pleasant for my neurodivergent brain
A 🍿 story with a fantastic intro.