The Overlapping Sudokus

[@lulerogaming1694]

Simon, I'm a big fan, having this puzzle from Michael and I being featured has given me some much needed joy ❤ Thank you, and all of the CtC community, you are ALL awesome!

[@puritan7473]

This looks awesome, I have just seen the grid and I have to give this a go for myself before watching Simon!! Thank you in advance!

[@brianj959]

Loved this! 👏👏

[@d4r4butler74]

Fabulous puzzle!!

[@AdmiralVortex]

Beautiful puzzle, I love having continuity between different sudokus!

[@artsenor254]

One of my favourite sudokus to date, thanks for the blast ! o/

[@thejuggler42]

It was quite an honor to have had the opportunity to meet Mark while in London. But I have to say, in the videos he comes across as a very clever and good-natured fellow, whereas in person, well... he's exactly that, actually. Cheers.

[@emilywilliams3237]

Lovely comment. Great that you got to meet him! (and I found him to be just the same).

[@brianshilling]

Absolutely great puzzle. I enjoyed the moment around 22:00 when Simon tried to slam an 8 into a 6x6 sudoku, and then used classic harder logic to disprove it. A perfect encapsulation of a Simon video

[@thejuggler42]

Thanks so much for solving our sudoku(s)! And congrats to Lulero on the debut, he's made some astonishing puzzles in the past so I'm happy to see him on the channel.

[@Mallis87]

Matt from the photo here - just wanted to say a huge thanks to Simon both for being so gracious and for the wonderful content on the channel. I shall leave the absolute values of our heights a mystery.

[@mickeyd08]

I've been waiting for a setter to create a puzzle with 4 3s in the corners. And while Simon didn't sing for any of them there are actually 4 3s in the corners of this puzzle!!!

[@jasminski08]

Just came here to say that the phrase "this is a diamonded nine on this paradigm" (28:08) had no right being quite that poetic. Such a phenomenal puzzle though it makes me wonder why there aren't more puzzles with multiple sets of counting circles. 😍

[@thejuggler42]

Thanks! I did make one other puzzle with multiple counting shapes called "Inclusion", and a recent puzzle with a twist on that mechanic called "Elephants & Castles", both of which are on Logic Masters Germany :)

[@AndrewJens]

There were actually four _"That's three in the corner"_ events in this puzzle.

[@mihaip4672]

I'm kinda disappointed at Sven for not creating those little animations which didn't make Simon sing.

[@aubinperree7679]

Today is the happiest day of my week for the first time in my life I’ve managed to beat your time at a sudoku puzzle. I feel really smart all of a sudden

[@sameendusk2623]

“We’re going to change tack altogether. Let’s go to clubs.” Simon!

[@kdkirby]

Counting circles are one of the best new rules, and this puzzle is a delight with four suits of them. Great solve!

[@dustinkeier9176]

Absolutely amazed that simon starts with the circle logic vice the fact that 7-8-9 can't go in the box 9(9x9) 6x6 section. And especially after the 1-2-3-4 quad in row 9, gives a 5-6 pair in the 6x6... Edit: I finally get the full house reference! That you are always considering the digits in pairs! 7-8s, 5-6's

[@thejuggler42]

Yup! It's also a pun: "house" is sudoku jargon for a row, column, or box. So any finished sudoku has quite a few full houses.

[@DylanTusler]

One for the books: It took Simon over an hour to work out there was a 4 in the corner of the 6x6. That was the first digit I found.

[@awilliams1701]

I'm not usually a fan of longer videos, but sometimes I am. This is one of them.

[@MattYDdraig]

43:13 This is the second ridiculously good sudoku from Juggler I've done today. I'm blown away by what he (and Lulero) can come up with and then execute in this manner. We're very fortunate to have constructors like these, and of course Simon and Mark to help bring them to our attention. Thank you all.

[@thejuggler42]

[@stevieinselby]

Interesting how Simon refused to consider small digits in the ♦ suit for such a long time ... I attacked the suit the other way round, starting with 1,2,3,4s in the small grids, then moving up to 5,6s in the middle grid before moving on to 7,8s in the large grid. A fascinating extension of the circle rule, which I was very pleased to finish in just under an hour 👍🏻

[@NinjarioPicmin]

Heeey this is the first time I've done a puzzle BEFORE it appeared on the channel, I was the second person to test this ☺️

[@AndreDenofrio]

where did you find it before it came here? I would like to see a repository of puzzles, but sven's app is empty... =(

[@MatthewMorris6148]

I just spent over 20 minutes pencil marking, and then hit an unsolvable deadly pattern. Yay. Time to almost completely start over. Update: I’ve figured out my problem, I skipped over a cell that could’ve been a 1 or 2. Second update: Persistence pays off. 1:31:10. Finally done. Incredible puzzle, beautiful logic, would love to see another sometime.

[@emilywilliams3237]

I really didn't have time for a long video yesterday, and when I saw that it was multiple interlocking grids I felt that it would just be a pencil-marking festival and probably not all that interesting. But because I am such a fan of CtC and never want to miss a video, I did tune in - and kept watching as long as I could! It was so interesting (and not a pencil-marking festival) how the card counting part of it worked. Thanks so much, Simon, for doing this puzzle - it was very fun. (I had to come back today to finish up, but I was very glad to do so!)

[@robinbrown6530]

Michael and Lulero. They are two of a kind, working on Full House.

[@CalvinNeufeld1]

1:07:42 for me. This one was one of my favourite puzzles in recent memory. Such smooth logic. The next step always felt fluid and well highlighted.

[@markp7262]

55:21 finish. This was such an amazing puzzle, with logic that wasn't too difficult but still involved. Fun fun fun!

[@TheDarkNerd]

35:24 "Although maybe I can work out where it goes." 35:36 "I'm not sure." The amount I wanted to yell through my screen, I swear... (Haven't gotten past this point, but box 1 eliminates R3, box 6 eliminates C8, and box 9 eliminates C7, leaving R1C9 and R2C9. Since the latter is already filled, that's a 78 pair in the corner~)

[@PassionPopsicle]

I find it so funny that Mark gets rid of colours the second there is no use for them. Whereas Simon makes sure to extend the colours to all applicable cells, even if the puzzle is finished 😂

[@BramMertens]

No apologies needed for the time taken. It was time well spent. Great solve as always.

[@AllenMS828]

This was a very fun puzzle! And my time was actually close to Simon's, for a change! I enjoyed the back and forth of switching between grids and suits, trying to fit all the clues together in a single solution. 😄

[@muntedfinger]

This is my new favourite puzzle. It took just over an hour to solve and it ticked my brain just right!

[@suburbanplankton]

It took me three tries to do this one, because I kept making bad assumptions based on thinking some digits were part of the 9x9 grid when they weren't...but finally managed to crack it. Interestingly, I did it completely the opposite way from Simon; I started with 1s and 2s in diamonds, and ended with filling in the 7s and 8s.

[@NendouHoudan]

Once you find that the 2s 4x4 and 6x6 have ALL the 1234 in diamons, you put all the 5 and 6 in the diamonds in the 9x9. A bit of coloring later you get which one need to be 5 or 6. This puzzle is amazing how it fells like diferents puzzles together, pairing 12 - 34 - 56 - 78

[@HunterJE]

A way to crack the 12s that doesn't require coloring the whole grid - the logic Simon noticed on the diamonds can be worked relatively locally in the 4x4s to show they must be different, which places a 2 in the remaining diamond in the 6x6/9x9, which then runs through the grid

[@tBagley43]

yep that's how I did it

[@iceberg54321]

12:06 Simon mentioned one of the two diamonds in column 1 in the left 4 box Sudoku had to include a 1 or a 2. Simon could have eliminated 9's being in diamonds by the fact that there were three 1 and 2' diamonds, so it could not be missing 8's, instead of the more difficult way (adding to 3 is much easier, about a second) then how SImon did it, which took him 15 minutes.

[@MarushiaDark316]

28:30 "Nine is never on a diamond ... and that means nine is never on a diamond." Knowledge bomb!!

[@In_42_Space]

Wow what an amazing puzzle. Loved the solve and the construction 🙂🙂

[@stangerrits6712]

58:20 Those clubs seem to all have a very strict door policy 😂

[@Squishy3757]

Missed the 3 in the corner on the lowest sudoku which is also in the corner on the rightmost. The lowest has 2 3’s in the corner. And the 2nd lowest has a 3 in the corner.

[@johnh2052]

When figuring out the spades at the very beginning, it almost drove me insane that Simon didn't fill in the obvious 4 in the 6x6 puzzle. :) I waited. And I waited... It took an hour!

[@davidalderson]

DIAMONDED

[@emilriesner182]

Simon singing Simon and Garfunkel seems so obvious. I didn't knew I needed that but here we are. Love the content. It got me into Sudoku and Nurikabe. Thanks for that :)

[@davidblake6889]

Great solve, as always, Simon. I can always tell when you are totally absorbed in the solve when you ignore 'Maverick' flying past your window. It happened at least twice in that solve, I think.

[@HunterJE]

1:06:19 One tricky but cool thing I noticed here - right now there are two placed 4♦s. But box 3 of the 6x6 must have a 4♦as well, which means there can only be one more. But r2c2 of the black 4x4 and r3c3 of the red 4x4 must be the same via weird grid-spanning entangled pairs, and if they were 4♦s we'd have one too many! Therefore those two must both be 3♦s and the last 4♦must be in r3-4c1 of the red 2x2.

[@petrie911]

Looking back, I notice that as soon as I figured out that both 1 and 2 had diamonds, I had enough information to place every 7 and 8 in the grid. But of course, I was focused on the smaller grids at that point.

[@debrabowen4276]

Gloriously trippy puzzle!

[@mstmar]

Really great puzzle. im a bit surprised at how different our solve paths were. i started with all the small digits and grids while simon started with the big ones. Here's my solve path: if you apply the logic at 1:02:35 at 24:30, you get to know that there are 1 and 2 diamonds and know approximately where they are. then all of the other diamonds in the 4x4 grids have to be 3s and 4s, plus 2 in box 4 of the 6x6 that's all of the 3s and 4s. because you have 1-4s in diamonds, you can't have 2+ missing digits to equal 9, so 9 isn't in diamonds. i still had to go through the logic with the 7s and 8s, but i did have a lot less options for the diamonds

[@angec9908]

Simon: I haven’t got a Scooby Doo. Me: Ruh roh Simon: “I’m allowed to do sudoku.” Simon never wants to do sudoku in a sudoku puzzle and is usually very indignant at having to do so 😂

[@adrianotavares1858]

"Hello Marverick my old friend". I laughed so hard!

[@longwaytotipperary]

Ditto

[@Ramhams1337]

as soon as a saw this grid my first thought was the overlapping 6 and 9 grid thinking. "well 789 can't be in the 6 grid so they must be in the line right next to the 6 grid in box 9. simon just ignores that for like 25 minutes

[@hewholimpsmartin]

Incredible puzzle, wonderful solve. ❤️

[@grahamania]

01:09:39 for me. That was a great puzzle! Loved the logic. Very much a color - erase - recolor puzzle for me. Kind comment.

[@Afterthoughtbtw]

53:32 for me. Looked far more daunting than it was in the end. I did initially look at it and wonder if it was going to be too tough for me. The key was definitely working out how many diamonds had to contain low numbers in the small sudokus. Once that breakthrough was made, it felt like there was always progress to be found, so long as you remained patient.

[@Ramhams1337]

simon at 1:12:25 saying he is running out of sudoku. meanwhile there is an empty square in box 2 that has to have a 6 in it. and with 6 placement in box 7 would give him the 6 in the middle box

[@BryanLu0]

Solve #2295 in 01:10:09 over multiple sessions. At first it is quite daunting the number of diamonds. But then when you break it down by grid size it becomes quite manageable. The way the low numbers work out with a bit of coloring is great, too.

[@roccov3614]

The way I worked out that it wasn't 1 and 8 missing from the diamonds is because I kept pencilling in until I found 3 diamonds that had to be a 1 or a 2. You have already found 2 of them. Therefore the diamonds included 1s and 2 so the 9s were what was missing.

[@davidhughes7174]

Magnificent. Thank you.😀

[@gi0nbecell]

It‘s always astounding to see how Simon‘s mind works. He spots the most complicated logical chains and misses out on simple conclusions like the spade cell in r1c6 of the 6x6 grid must be a 4, that the diamond square in r8c8 in the 9x9 (and r3c1 of the 6x6) could _never_ have been a high digit, and that the pink-1-2 triples in boxes 7, 8 and 9 of the 9x9 provide roping in those boxes.

[@frankjiang1857]

Finished in 60:54. Interesting concept of multiple circle sets across multiple overlapping sudokus. Took a while to figure out how to approach it, but once I got the break-in, it was a joy to think of the next logic to progress the puzzle. Fun puzzle!

[@puritan7473]

Just a quick hint - I think it would have helped Simon a ton - The Very First thing I did was use the pen tool to draw in the perimeter lines for each Grid!

[@CatzHoek]

I am always surprised how sophisticated the software is that it allows for the weirdest variants.

[@srwapo]

70:09, the logic just flowed directly, had a hard time scanning everything, especially where the grids overlap. At least I didn't assume digits in the same row/column, but in different grids, we're conflicting!

[@emdiar6588]

Funny that the 4th digit I got (the 4 in the top right corner of the 6x6) Simon just ignored for an hour, having already turned it into a naked single, right at the beginning.

[@HunterJE]

When putting the 34s in spades, you can go one step further-there are three sudoku boxes with two spades and one with just one; each of the paired spades will have to be one 3 and one 4, which gives 3/3 threes 3/4 fours, therefore the lone spade in r1c6 of the 6x6 must be the fourth 4 (alternately you can do similar with a mix of rows and columns)... :edit: Better late than never

[@daleomiller]

This bothered me as soon as he marked the 3s and 4s.

[@xitvono]

He sees that about an hour into the puzzle.

[@johnpauladamovsky86]

This is another one of those puzzles which was produced by two artists who merely function as conduits for the Eternal source of Wisdom. We are living in a very magical time, when these artwork logic puzzles can reach a big audience worldwide... That has never happened before.

[@xerodeus2337]

Simon's puzzle solving intelligence blows my mind... this one was way too hard for me lol. I got the 4 in the spades as my first digit and that was it lol 1:05:00 !

[@martysears]

Absolutely brilliant concept and execution from Lulero and Juggler, very cool use of the circle counting idea, and it tickled me that there were only three hearts haha. I had the pleasure of meeting Michael in person this week too while he was in London - what a lovely chap!

[@thejuggler42]

Thanks, that's quite a compliment coming from the constructor who invented counting circles! And yeah it was great seeing you in person :)

[@Rubrickety]

Amazing puzzle, though an absolute beast for my skill level. Got there in the end.

[@chocolateboy300]

I finished in 76:16 minutes. I was worried based on the length of the video and the way the grid looked that this was going to be a rough one for me. However, I am pleasantly surprised to see that this was quite a straightforward puzzle. The pathway felt easy to parse and felt intuitive based on the counting suits rule. I really liked the theming of the grid as well to emulate that old school solitaire on the computer feel. Great Puzzle!

[@roccov3614]

That took me way too long but it was a good puzzle. I just needed yo have a good day to finish it.

[@kyngjunjung3185]

way I removed 9 from the diamond around 24:50. three 1-2 diamonds are at r3c1 of red3x2, r3c1 of black2x2, and one of in c1 of red2x2 which forces all the remaining diamonds not 1-2. and therefore all the diamonds in box4 of red2x3 is 3456 quad. with 123456 forced only possible 36 combination is 7-8 pair edit: noticed Simon actually uses it at 1:02:42

[@Jukka70]

another brilliant one, loved it. And it's different from others we've seen

[@psiphiorg]

Quite a tricky one today! My time was 72:39, solver number 2834. I also like that there were three 3's in four corners, although none of them got the confetti because they weren't in an outer corner of the entire grid.

[@toms7114]

I wish that @45:00 when Simon placed the diamond 5s and 6s that he realized it broke the possibility of there being a 6 in clubs making the club digits be 1, 2, 3, & 4.

[@alexandrostheodorosnteris3917]

Happy new month to you Mark amd Simon a happy summer and a summer with much amd more sudoku adventures 😊😊😊🇬🇷🇬🇧🇬🇷🇬🇧🎶🎶🎶🎸🎸

[@Gonzalo_Garcia_]

31:40 for me. Very nice puzzle!!

[@57thorns]

1:04:32 I suppose the 34 par in col 4 of the 6x6 is a decent place to look.

[@tBagley43]

5:02:59 probably the hardest ctc puzzle I've ever solved

[@cparks1000000]

Bravo.

[@johnh2052]

It's weird to me that Simon handled the diamonds exactly the opposite to me. I saw almost immediately that 1 and 2 were in diamonds, and I knew approximately where they were. Very quickly, I then saw that 3 and 4 had to be in diamonds and saw approximately where they were. So, the 9 was missing. Only then did i work on the higher digits. I wonder which way the setter intended? (I think mine, since it was so easily clear, but I'm obviously biased.)

[@thejuggler42]

Setter here! I did it your way while constructing. But because of how isolated all the pairs are from each other (12, 34, 56, 78), you can really solve the puzzle in almost any order.

[@johncox7169]

I loved the 4 overlapping puzzles

[@am-e7967]

I realised around 32:20 that column 9 had only one diamond. I think you could use this to roughly place the final undiamonded 7/8 and skip some of the more complicated logic, but I'm not sure

[@jurgenbaumann67]

I needed around one hour to find out the hearts even I reduced the options of other fields by the same way you and I found the hearts numbers. But the first spade I got after two minutes in the R1C6 of the 6x6-square. Totally I needed 220 minutes and a few seconds.

[@manudude02]

Wonderful puzzle, final time was 112:06 which did include a break, and was heartbroken when I found out I had made a sudoku error after thinking I had solved it at around the 90 min mark.

[@dinane]

This was amazing fun.

[@AIDcyt]

you had 3 threes in corners and you didn't sing for any of them!

[@jurgnobs1308]

wow simon is somehow quite a bit taller than I thought despite me never actually having thought about whether he is tall or not

[@samanthahill1525]

Oof, that was a workout. 103:05 for me. Great puzzle. :)

[@Andizottel]

Aww, I'm currently working on a sudoku with overlapping 9x9s. Oh well, I think it will be different enough so nobody will think I just "stole" the idea. There are a few repeated and "wrong" digits. Let me tell you the first 2 rules: "Normal 16x16 Sudoku rules apply partially. Normal 9x9 Sudoku rules apply somewhat." 😄

[@jinkela7295]

At 11:45, Simon can place a 4 in r1c6 of the red 6x6 grid immediately

[@MarushiaDark316]

I'm always surprised by how tall Simon is.

[@TurquoizeGoldscraper]

I'm too busy today, I'm just going to watch. Good luck Simon.

[@dikinebaks]

great fun puzzle, not too hard but definitely exhausting

[@n8style]

Just over 1 hour for me following along with Simon and still got it wrong 😂

[@v0id_d3m0n]

Took me 2h 45m 40s. I'm proud I managed to solve it!

[@zogannstorm6044]

That was fun! Took me 135m

[@skeptic10]

How to get to the sudokuapp-link if my KZbin has the stupid new layout with the description on the right? If I click read more, it won't show me anything in the description. Only a gray rectangle with nothing on it.

[@deathhawk300]

Technically there were 4 “3 in the corners”

[@LednacekZ]

59:06 for me. could have been 10 minutes shorter, but i had to recheck the solve as i thought i made a mistake which i did not. i made a mistake thinking i made a mistake.

[@jinkela7295]

22:10 Simon wants to place an 8 in the 6x6 grid...

[@anthonydecarlo2000]

i want Simon to do a "sound of silence" cover named "sound of maverick" now

[@abcadef6171]

Easier way to see thing thing with the 7s and 8s in the top-right around 32:00: column 9 has an undiamonded 7 or 8.

[@barmetler]

Ah come on, the top right 4 was sooo obvious 😂

[@LithmusEarth]

6:45 so it's just circle rules, but, four sets of them. Yeesh. Daunting. 12:10 don't we have a 4 in the lonely one? The other ones are all 34 pairs the upper right spade is a 4?