A Sudoku With Only Three Given 7s
Рет қаралды 54,827
Күн бұрын** KICKSTARTER LAUNCHED - FOG OF WAR **
Check out our new Kickstarter - launched yesterday - where we tasked ourselves with creating the best Xmas present for a puzzle fan. There's a story by professional writer Peter C Hayward linked with (at least!) 10 brand new Fog-Of-War Sudoku puzzles by Sandra & Nala; and this all made beautiful by the artwork of Haleigh Mooney. Please help us to make this happen.
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** TODAY'S PUZZLE **
The most popular video on the channel features a puzzle by the Dutch mathematician Aad van de Wetering and he returns tonight with a sudoku to celebrate his 79th birthday! Happy Birthday Aad!! And what a puzzle this is... original and fascinating in equal measure.
Play the puzzle at the following link:
sudokupad.app/HN92M3RT3n
Rules:
Normal sudoku rules apply. The sum of two neighbouring digits on a grey line is always either 7 or 9.
Simon's solve of Fillomenon by Darth Paradox is 172 minutes long (!) and will appear on Patreon shortly (details below if you'd like to join). You can see why this puzzle is BEASTLY by checking out this link:
logic-masters.de/Raetselporta...
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▶ Contents Of This Video ◀
0:00 Theme Music & Puzzle Introduction
1:06 A Sudoku With Only 4 Given Digits
2:07 Fillomenon by Darth Paradox
3:39 New Fog-Of-War Kickstarter JUST LAUNCHED
5:02 Last few days of November's competition
5:13 Happy Birthday & Thank you
5:48 Rules
6:23 Start of Solve: Let's Get Cracking
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@rhodacious 7 ай бұрын
Excited: "I've spotted something before Simon" Simon: "Well, I have spotted a lame deduction, but I'll mention it" 😂😂😂
@jimi02468 7 ай бұрын
I spotted that first 5 in the second box next to that 2 while Simon was still thinking about sevens and I'm proud of that.
@Skamba 7 ай бұрын
It always amazes me how Simon can figure out how it works really quickly, only to forget it a minute later
@carly09et 7 ай бұрын
It is stack 'underflow'
@OverkillSD 7 ай бұрын
Makes me wonder if Simon also has ADHD like I do >.>
@jensschmidt 7 ай бұрын
@@OverkillSD I wonder if this means that... oh look, a three in the corner...
@raynmanshorts9275 6 ай бұрын
I was so mad that he didn't continue with green parity because that would have filled in _so_ many squares before he got to them.
@patrickgass787 7 ай бұрын
There's such a purity to Aad van de Wetering's puzzles... there's really nothing quite like them. Still THE master of the craft, even at the age of 79. Incredible
@anaayoung9142 7 ай бұрын
79??? Whoaaaaa! Thats insane! Always liked his puzzles, altough is kinda hard to me. 🤗
@KyleBaran90 7 ай бұрын
@@anaayoung9142 He'll have to do something different next year on account of there being no 0's in traditional sudokus
@KyleBaran90 7 ай бұрын
They always have a certain amount of simplicity and geometry, but it's done in an elegant way.
@anaayoung9142 7 ай бұрын
@@KyleBaran90 Haha that's true. Maybe using 0-9 with the famous Schrödinger cell. Usually way harder for me even trying, but nice to see Simon solve it. Or just 0-8 if he want to be kind 😅
@minamagdy4126 7 ай бұрын
@KyleBaran90 Simple: 0-8 sandwich. It doesn't seem to me to be his style, but I'm sure he can make a great one. I've been watching this channel for nearly 4 years now, and his puzzles were always there, maybe even before CTC started daily uploads, let alone consistently doing novel variant puzzles (vs requested classics, which this channel was built on before the pandemic). He is certainly one of the greats.
@MrKeso999 7 ай бұрын
A rule set that is not 2 pages long👍 That’s a world class constructor 👏
@HalfBakedLunatic 6 ай бұрын
Seriously good construction on this one ... wow.
@davidrattner9 7 ай бұрын
Have a wonderful birthday Aad. Thank you for all the magnificent puzzles you have brought to the community over the years!
@longwaytotipperary 7 ай бұрын
Happy birthday, Aad! 🎉
@somegal934 7 ай бұрын
1. I Need that 3 hour vid 2. I love how the solution has all the digits repeating in the exact same pattern and wrapping around, it looks so good
@xToYdUcK 7 ай бұрын
That was something I really appreciated too. I believe it's called cycling sometimes. Probably a result of doing math like that in horizontals and the nature of sudoku will produce that. Math and patterns are more connected than most acknowledge.
@werbly 7 ай бұрын
After the green and purple colouring is applied at 40:28 it is possible to tell that green is odd, as if green were even there would be no space for an even on the remaining line in box 1. Granted I most likely wouldn't have gotten that far if I had been attempting this puzzle myself!
@jamesonskalinski6910 7 ай бұрын
Same feeling. I may not have gotten off the ground. But at 29 minutes this was apparent. That line is an odd length, so the ends are the same.
@MaierFlorian 7 ай бұрын
Simon - always underestimating how many people are willing to watch him battle with a puzzle instead of watching LotR. Though I understand that not everyone wants to spend this much time and that there have to be shorter puzzles, too :D
@HunterJE 7 ай бұрын
25:13 Feel like Simon was close to a little more progress here and missed it by only looking at even steps along the diagonal being the same parity count - you can do the same trick with odd steps along the diagonal having opposite parity counts, so the three odds and one even in row 3 become three evens and one odd along those same diagonals in rows 4 and 6, which in both cases tells you the parity of the remaining cell in their row, and in the latter case also lets you parity color three more cells since the cell that gets colored is also on its own line...
@christophercordes951 7 ай бұрын
Yeah, there was a long bit there, that if he had just taken it one more step out he would have gotten it. I personally never got past the break-in so I can't blame him too much. I'm just an armchair sudoku-ist, at least in this instance.
@Skamba 7 ай бұрын
He even used that logic @20:28 with columns, but then seemed to forget it
@chris5619 7 ай бұрын
And then did it again at 29:02.
@mysterion9686 7 ай бұрын
Yes noticed it too. It would also expand towards box 8, and from there the big positive diagonal through the upper left corner of box 8.
@ibdoomed 7 ай бұрын
Yeah, yet another screaming at the monitor time until probably 36:00 or so when he starts to get clicking.
@Sandra_and_Nala 7 ай бұрын
Happy birthday Aad!
@mastercreative6752 7 ай бұрын
Yes, please publish the 170 min. fog of war puzzle on the channel! For me, the longer a solve, the better, I love seeing you do puzzles that push you to your limits!
@StewartyMac 7 ай бұрын
I'm 53 and can barely remember what I had for dinner last night, Aad is 79 and still constructing genius sudokus. Major respect.
@bones7708 7 ай бұрын
Coincidentally, at 53 and 79 you are both in your prime years. (And I'm too at 47).
@amysteele2488 7 ай бұрын
Happy Birthday Aad! What a wonderful puzzle!
@arcanelizard4646 7 ай бұрын
Happy birthday, Aad! In honor of the 79th birthday, I intentionally took 79 minutes to solve. Definitely intentional... Beautiful setting and logic. I did need Simon to tell me that parity was probably going to be important, but after that it was a clean solve and the whole thing fell apart with very little resistance, only needing the gray lines to distinguish a single even digit. (Fairly big spoilers for the finished grid ahead) I didn't even notice the cycling pattern in the rows until reading another comment, which just added another layer of beauty once I saw it. Absolutely lovely puzzle, and I hope you can continue to set them as long as your heart desires Edit: I'm so upset at myself for seeing Simon's solve time for Fillomenon and thinking "yeah that's a good way to spend my evening." But hey, I beat him by 99 minutes. That's right, only took me 271 minutes to complete that beast. This is what I get for not being able to say no to a challenge like that
@tessabrisac7423 7 ай бұрын
❤😂❤
@jamestimberlake7762 7 ай бұрын
Happy birthday, Aad! What a delighful puzzle.
@user-dw2rm2tm7n 7 ай бұрын
Simon was wondering about if parity was helpful, but he could have taken parity even further. Look at row 2 and column 2. If Pink is odd, then both row 2 and column 2 meet their quora for odds. This breaks box 1 which needs one more odd digit. You can then continue parity shading the rest of the puzzle. That would have given the same result that 7 in box 9 is in the top row (but 2 different cells).
@kayadimaria 7 ай бұрын
Just discovered your channel today im such a nerd for your sudoku challenges ive already watched like 10 videos
@tessabrisac7423 7 ай бұрын
Welcome! You are in for a beautiful ride!
@Terrariagrossmeister 7 ай бұрын
I love the distribution of the odd and even cells. It looks flowy, like little waves of even and odd digits
@psiphiorg 7 ай бұрын
Happy birthday, Aad! I had a lot of fun with your puzzle, using heavy coloring for odds and evens. I solved it in 35:29, solver number 200!
@AndyeKAA 7 ай бұрын
Of course we want to see the long one Simon, it was never a question!😅
@Paolo_De_Leva 7 ай бұрын
Who entitled you to represent us? 🤔
@SiWillmore 7 ай бұрын
Happy birthday Aad! I've never met you but through this wonderful community we call CtC I feel like I almost understand how your spectacular brain works!
@BryanLu0 7 ай бұрын
Simon missed this, but the restriction is much more powerful between rows that are an odd distance apart. E.g row 3 and row 4
@Paolo_De_Leva 7 ай бұрын
*More* powerful? At what playback time, for instance? In general, I can see they are *equally* powerful. I agree that Simon focused mainly (but not only) on rows and columns that are an even distance apart.
@snowfloofcathug 6 ай бұрын
The amount of times he just skipped comparing row 3 and 4 just to deduce nothing from looking at row 3 and 5 and giving up on it *multiple times* was slightly maddening
@BryanLu0 6 ай бұрын
@@Paolo_De_Leva There are several points where it is much easier to progress between odd distance rows. Maybe powerful isn't the right word
@longwaytotipperary 7 ай бұрын
Great puzzle - ❤ the patterns! Happy birthday Aad!!
@ElizabethRoss-uj8rl 7 ай бұрын
I hope his birthday was as awesome as his puzzles! It was Aad's "most popular puzzle viewed" on CTC that was my first view and my first solve here. I've been a CTC addict ever since and always jump on a new Aad. It was double fun to watch Simon plow through this one tonight.
@raysouth1952 7 ай бұрын
Happy birthday Aad. What a lovely puzzle. A little out of my league but I very much enjoyed Simon’s solve.
@MrWaffles1030 7 ай бұрын
It's beautiful how you get symmetry between rows with such a simple constraint. Each row has the same digits in the same order read left to right, as long as you wrap Pac-Man style back to the left when you finish a row. All that changes is what digit you start on.
@longwaytotipperary 7 ай бұрын
Wow! You’re right!!
@RichSmith77 7 ай бұрын
Perfect roping both horizontally and vertically, too.
@inspiringsand123 7 ай бұрын
Rules: 01:26 Let's Get Cracking: 06:28 What about this video's Top Tier Simarkisms?! Bobbins: 2x (44:15, 45:11) Knowledge Bomb: 1x (15:37) Three In the Corner: 1x (53:01) And how about this video's Simarkisms?! Sorry: 14x (11:49, 16:20, 16:37, 18:47, 26:13, 27:30, 27:30, 27:37, 31:25, 31:53, 35:46, 35:46, 35:58, 47:21) Ah: 8x (11:16, 19:17, 25:01, 27:30, 28:04, 30:25, 44:15, 51:52) Hang On: 6x (19:33, 27:23, 30:27, 47:15, 49:48, 50:15) Useless: 5x (07:04, 09:42, 31:53, 31:59, 32:06) Beautiful: 5x (49:06, 49:35, 54:25, 54:48, 54:48) Fascinating: 4x (02:46, 02:48, 03:34, 44:40) By Sudoku: 4x (51:18, 52:56) Bother: 3x (25:20, 31:53, 31:53) Clever: 3x (28:13, 53:44, 54:28) In Fact: 3x (07:34, 37:41, 46:12) What Does This Mean?: 3x (11:14, 14:43, 28:25) Cake!: 3x (05:33, 05:36, 54:58) Nonsense: 2x (13:04, 27:27) Naughty: 2x (10:25, 21:06) Stuck: 2x (41:28, 41:30) Brilliant: 2x (01:10, 04:02) That's Huge: 2x (47:23, 47:30) Nature: 2x (44:37, 44:37) The Answer is: 1x (44:45) Missing Something: 1x (43:56) Bingo: 1x (28:04) Lovely: 1x (53:59) Incredible: 1x (04:34) Astonishing: 1x (01:10) Gorgeous: 1x (28:13) Magnificent: 1x (02:43) Surely: 1x (07:06) Unbelievable: 1x (54:33) Obviously: 1x (40:29) Whoopsie: 1x (50:52) Progress: 1x (21:45) Have a Think: 1x (46:53) Pencil Mark/mark: 1x (32:10) Most popular number(>9), digit and colour this video: Seventy Nine, Eighty One (2 mentions) Seven (67 mentions) Green (19 mentions) Antithesis Battles: Even (74) - Odd (73) Column (21) - Row (17) 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!
@oneeyedman4431 7 ай бұрын
Would love to see Aad appear on the channel for a chat
@tessabrisac7423 7 ай бұрын
Hear!
@MarkBennet10001 7 ай бұрын
Simply stunning puzzle and a great solve - I take so much longer than Simon to change "point of view" - just the intuition for possibility is extraordinary.
@bobbis.172 7 ай бұрын
Happy Birthday 🎉 Aad!
@TheRPGamer7 7 ай бұрын
Hallo een Gefeliciteerd Mijneer Wetering! Ontzettend bedankt, jouw puzzels (een Cracking The Crypic) bracht mijn weer in sudoku. Ik wens je veel geluk, gezondheid en geluk! Het spijt me, mijn nederlands is slecht, wij spreken nederlands in Nieuw Amsterdaam niet.
@yadiracamacho499 7 ай бұрын
Happy birthday, Aad! And yes to the 3 hour video on the channel, please.
@komigangmed 7 ай бұрын
Simon. i am an 50+ male from Norway, spending lots of hours watching you (and Mark) solve sokudus.... And I am proud of it :-). thanks
@biaberg3448 7 ай бұрын
Da er vi to. Bare at jeg ikke er mann.
@komigangmed 7 ай бұрын
@@biaberg3448 så kjekt, bia.
@darawayne3167 6 ай бұрын
I hate doing Sudokus myself, but I have to admit that I love watching you solve these very hard ones. Found your channel a few days ago and since then in invested😅
@ScottPeterson785 7 ай бұрын
Great puzzle - i noticed it was the identical sequence that simply repeats and wraps around (rows and columns).... I was thrilled when this held up at the end!
@tessabrisac7423 7 ай бұрын
Just beautiful. Thank you and happy birthday, Aad van de Wetering!
@victoriam6569 7 ай бұрын
Happy birthday, Aad!
@michaelmatter1222 7 ай бұрын
Great puzzle by Odd van de Wett-even 😁Happy birthday Aad! -99%Sneaky
@AmmoBoks 7 ай бұрын
Gefeliciteerd Aad. And nice solve Simon!
@laurasmith2173 7 ай бұрын
Beautiful puzzle Aad and happy birthday! I look forward to the next CtC movie.
@Trevtutor 7 ай бұрын
This looks like such a fun one. Patterned sudoku are 💯
@RL-gl8qg 7 ай бұрын
All hail the great and powerful Aad. His puzzles are always so darned beautiful.
@kevinbrownsword9558 7 ай бұрын
I watched this after finishing while putting my 3 year old to bed. Happily asked to watch Simon. Was very happy with the green but got upset when removed. “It needs more green”. Then the adverts came on and they said “no, want more Simon”.
@Stompound 6 ай бұрын
Getting all the 9s so quickly is very satisfying
@davidalderson 7 ай бұрын
Another fantastic puzzle by the master Aad Van de Wetering. Placing a couple of extra 7s at the start by considering the positions of 7s and 2s definitely helped with the parity shading.
@davidstorrs 7 ай бұрын
Happy birthday, Aad! What a delightful puzzle.
@klausku3285 7 ай бұрын
Brilliant puzzle! Aad‘s puzzle are in a league of their own. I enjoyed every bit of my 94 minute solve.
@Kheldar633 7 ай бұрын
3+ hour hard solve? Yes, please.
@JorgePacker 4 ай бұрын
I couldn't find that even odd logic, although I was thinking about odd and even for over an hour!! Great puzzle and great solve as usual! 👏
@LedSomeFlops 7 ай бұрын
I don't know why I got suggested to your channel, but I downloaded the Cracking the Cryptic app after watching a couple of your videos and I love the challenge of your puzzles vs traditional sudoku puzzles and I'll be watching your vids and trying out your challenging puzzles. I can't wait to see your new content and binging your old vids. Cheers to you and everything you're doing here. ❤❤
@LiquorStoreJon 7 ай бұрын
Happy Birthday, Aad!
@TheMrEwe 7 ай бұрын
Happy Birthday Aad!
@emilywilliams3237 7 ай бұрын
Aad, the happiest of birthdays to you! Thank you for this puzzle and for all of the wonderful puzzles you have given us, many featured on this channel or in the apps and in many other places. Simon, this was very interesting indeed. I love a parity puzzle, and love how you deduced parity in this one. I always learn something, and today was no exception. Thank you!
@MrKuifie 7 ай бұрын
Gefeliciteerd AAD!
@KCML82 7 ай бұрын
Gefeliciteerd Aad!
@elaadt 7 ай бұрын
Happy birthday Aad! That is a beautiful puzzle.
@olleicua 7 ай бұрын
I love it when you solve a puzzle a totally different when than I do
@henk-ottolimburg7947 6 ай бұрын
Van harte gefeliciteerd, Aad! Met je verjaardag en met weer een prachtige puzzel!
@ceilingfan12345 7 ай бұрын
It's funny. I would have never gotten the break in without watching the video, but once I got the basic idea from him, I was able to finish the rest much faster. It was like he figured out the trick and then forgot it.
@emdiar6588 7 ай бұрын
Van harte gefeliciteerd Aad.
@neilramsey1368 7 ай бұрын
happy birthday Ard
@mvansprang5635 7 ай бұрын
This was an amazing puzzle. Incredible!
@mathildehuisman7464 7 ай бұрын
Van harte gefeliciteerd Aad! Wonderful puzzle! 🎉
@MyriamTT 7 ай бұрын
Great puzzle. Thank you !
@stumbling 7 ай бұрын
Wow! I had been edging ever-closer to Simon's solve times recently but not for this one. 138 minutes it took me. Almost gave up twice but muddled through. My first solve of an AvdW puzzle. Happy Birthday Aad!
@GuilhermeCarvalhoComposer 6 ай бұрын
I finished this one in 79 minutes, which is incredibly fitting. Excellent puzzle!
@andremouss2536 7 ай бұрын
55:00 If you try one hypothesis on the parity of one of the cells R1C2 and R2C1, you discover that most of the cells - except eight of them : R1C2, R2C1, R8C2, R9C1, R1C9, R2C8, R8C9, R9C8 - end up at the same parity in either case (whatever parity you chose to start with) and then coulour up most of the grid.
@michaellautermilch9185 7 ай бұрын
What an interesting pattern the digits made when solved!
@piarittersporn 7 ай бұрын
What a beautiful and funny puzzle.
@deangaudet 7 ай бұрын
happy birthday aad! fun puzzle... but even though i found the concept elegant, my solution was anything but elegant.
@ninjakillvizard9851 7 ай бұрын
I'm surprised Simon didn't think symmetry with this lol.. if you turned the puzzle upside down.. its opposite parity.. he probably could have figured it out faster with his parity take on the puzzle.. if he implemented parity with it earlier... but it was still pretty awesome for him to find out without using symmetry 😅
@elizabethswann05 7 ай бұрын
where can I start a petition for the audiobook? I'd absolutely hear that probably on a daily basis!
@sacredsock8031 6 ай бұрын
For such a symmetrical puzzle Simon seems to keep forgetting
@smileyface2411 7 ай бұрын
(45:52) I really like the flow of this, once you figure out the thing you figure out everything
@Just_Danny_X64 7 ай бұрын
To paraphrase the Elf-King Thranduil; "There are LotR length Sudoku solves that I too desire... great puzzles... of pure genius..." Please keep giving us the long solves. They're too good for the world not to see.
@kajacx 7 ай бұрын
Very interesting that you take a different route to the odd-even coloring. I looked at 2 adjacent columns/rows, and the 2-length line segments on those always have 1 odd and 1 even, so you are usually left with 6 cells that need 4 odds and 2 evens, and you can slowly fill them in.
@chloratum 7 ай бұрын
Of course we want to see 172 minutes of Sudoku-madness. What a question...?! ;)
@myacky5887 7 ай бұрын
Happy birthday Aard!! I hope to be just as brilliant at 79 as you are ❤ Also, I'm part of the group who loves the long videos, so please post your solve on the main channel!
@BakingFiend-rl7mo 7 ай бұрын
Hey first time commenting! Was not expecting a shout out but I'm really glad you read my email and have a good day!
@handlesareanunfortunatefeature 7 ай бұрын
Aad is one of the last good puzzle makes that don't resort to a large ruleset for hardness. Which is something I sorely miss.
@MadsOcto7 7 ай бұрын
When you repeatedly abandoned row three 😭
@Danielmoen88 7 ай бұрын
This puzzle toke my logic for a ride to say the least. Took me a while to think of odd/even parity, even though one of my favorites since I started doing these recently, was the sun/moon parity puzzle a few weeks ago. That said, the 7 in box seven can be placed right at the start after 9s. if c2r7 is 7, that doesn't work, because there will be two 5s in c4. Column two already having 4 odds (r2=135, r4=9, r5=35, r8=7), there can only be one last odd in the column, which was fairly easy to find with the diagonal lines ruling stuff out, and the solve was quick. Now getting there took me way too long, thinking foolishness such as since 1 have to go next to an 8 on a line, 8 has to go next to 1 (before even thinking about parity) -,-
@notimefortact9877 6 ай бұрын
I was surprised Simon never mentioned roping.
@karsaanita 7 ай бұрын
This took me almost as long as Crux. I just couldn't wrap my brain around it 😅
@SaarRocks 7 ай бұрын
Aad, mocht je dit lezen, nog van harte gefeliciteerd! Je hebt weer een meesterwerk gecreëerd! Translation from Dutch, since I thought it would be nice to address him in his native language: Aad, if you read this, happy belated birthday! You've created another masterpiece!
@Anne_Mahoney 7 ай бұрын
Happy birthday, Aad!😺
@specialkalberta 7 ай бұрын
Amazing
@thorbjrnhellehaven5766 7 ай бұрын
38:55 I didn't find a row/column with 4 evens, bur a column with 5 odds, but that's basically the same. The 7s in box2, need a 2 in (R2-3)C5, and a 5 in (R3-4)C4 (because there is already a 7 elsewhere in C4) Then hypothecating if R7C2 can be a 7: 7 would go with 2 in R6C3, and 2 goes with 7 or 5, in (R5)C4 but 7 is already in box5 (R6C4), and 6 is already in C4 (R3-4) > R7C2 can't be 7, R8C2 must be 7, giving us the 5th odd in C2 Then we're cooking with gas. 44:19 my way was different, but it was about the 7s and 2s too, (as well as 5s) then 47:16 yes "that's huge!" and we're cooking with gas 🙂 ❤👍
@AlanJames 7 ай бұрын
The 7 in box 4 can be placed as soon as the 9s are done, but it's always fun to see Simon solve the hard way.
@RichSmith77 7 ай бұрын
Sorry, what's stopping 7 in r4c1?
@AlanJames 7 ай бұрын
@@RichSmith77 whoops I thought the grey line would have to go 7-2-7 but it could be 7-2-5 there, so I can't rule it out.
@MattthePolishActor 7 ай бұрын
At the 30 minute mark, if r2c6 is odd, then r1c7 is even, which forces r1c2 and r6c2 to be odd, giving 6 odds in the column
@RichSmith77 7 ай бұрын
That's very neat. I guess an alternative way to see the same thing, once Simon had coloured the diagonals green and purple (40:30), would be to see that if greens were even (blue) and purples were odd (orange) then r1c2 would see four evens and five odds, so have no value. This makes it a little easier to make progress with the 7s then, which felt a little "bifurcatory" Simon's way (which was similar to my way, only I hadn't done any parity work at the start). Nice.
@erlandodk 7 ай бұрын
24:54 So close to picking the right rows... Both row 4 and 6 can be used to resolve more parities by using the opposite parity count
@erlandodk 7 ай бұрын
But then again I would never have found this break-in myself :-D
@lordscottish69 7 ай бұрын
There's a possibility that "79ing" becomes a verb to describe the progression of a sudoku with diagonally cascading parities/impacts
@18Wolves77 7 ай бұрын
'Aappy birthdaay Aad! Haave aa greaat daay!
@scbl46 7 ай бұрын
20:42 wow. That logic is just... beautiful
@tessabrisac7423 7 ай бұрын
Wow!!!! That’s just crazy!
@bradmccallum1 7 ай бұрын
Oh Simon....Always going the long way around....At 21:00 when he realized the parity of the digit in R9C4, you could've gotten that with the same logic you used in box 1. But I have to say, it's really interesting seeing the logic from your perspective as well :)
@eyadh258 7 ай бұрын
I still remember the 77 birthday sudoku.
@Wikihan 7 ай бұрын
I'm screaming. It's like, you're doing exactly what your supposed to be doing, but then you keep abandoning right on the cusp of riches. Looking two rows down instead of one row down. Look one row up, but then not one row down...
@trisha2584 7 ай бұрын
Hope Aad has a great birthday
@davidtieman4102 7 ай бұрын
Challenging and difficult, but fun
@Rach881101 7 ай бұрын
66:35 for me. Magnificent puzzle!
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