The Un-Rememberable Rule

** TODAY'S PUZZLE **
After a couple of days of vicious puzzles, we're back in "approachable" territory today with this gorgeous sudoku by zetamath, Swirl. The rules are short but one of them seems to be un-rememberable...
Play the puzzle at the link below:
app.crackingthecryptic.com/su...
Rules:
Normal sudoku rules apply. Adjacent digits on a green line must differ by at least 5. No pair of orthogonally adjacent cells (ie a domino) in the grid can contain digits summing to 5.
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[@afanofosc]

The chasing cars intro was beautiful. One of my favorite things about the channel is watching an extraordinary human being do beautiful things. Like puzzling, playing guitar, quoting poetry, and honoring the trips around the sun of complete strangers. Oh and encouraging chocolate cake consumption.

[@SneakyFatKid7]

I wonder if the rule had been phrased "Cells separated by a V contain digits that sum to five. All possible Vs are given." if Simon would have remembered it better.

[@pedrobluis]

❤️ Exactly how I saw it!

[@leporid257]

We had that with a phistomefel sudoku ones right? but i think it was kropki without dots.

[@Pulsar77]

Simon is like the proverbial absent-minded professor who can tackle the most complicated puzzles with ease but struggles with the easy ones. A few days ago he did that enormous fog puzzle where the rules were a wall of text, and he had no problem remembering them all. And then this straightforward rule set has him stumped. I love it :-)

[@kathyjohnson2043]

It is to our benefit that Simon did not become a teacher because he is a darn good one, absentminded or not!

[@RealCadde]

That enormous fog of war puzzle is actually quite easy. The reason the video was long on that one is simply that each step takes a whole new turn in logic. It is a brilliant puzzle. This one in the video is arguable harder until you figure out the first few digits. Then it becomes a breeze, if only one can remember the one rule.

[@brucejones533]

I had a professor for Calc based statistics who performed triple integrals in his head, but needed our help with seven times eight……

[@Pulsar77]

@@brucejones533 I had a few professors like that as well. I remember a prof frantically looking for a sponge to wipe the blackboard. He already had it in his hand... :-)

[@mollymann4192]

I love his comments as he goes. "Blue-i-ness", and especially "yellow-i-ness" which was quite a challenge to say. 🤣

[@MaierFlorian]

Simon: puts a 3 in the corner, with no song. 5 seconds later: he puts a 2 in the corner and is sad about that the 2 in the corner doesn't get a song :( and now I'm sad

[@willyklophaugen2191]

In his defense, he just remembered the unusable rule so it is understandable that 3 in the corner was forgotten.😄

[@francissager3133]

The 3 is happy to be in the corner without any spotlight or loss of religion.

[@MCarrington01]

The unrememberable rule really discombobulated him.

[@andrewgrant6516]

5 in the middle though. That's always a bonus.

[@danielmstorey]

Came here looking for this comment

[@stephenjames2951]

The anticipation of Simon's response to each time he realized that he had missed the un-rememberable rule was entertaining

[@dwebb2805]

simon: "this rule is impossible to remember" simon's brain: "ok, i won't remember it" ~a few moments later~ simon: "this rule is IMPOSSIBLE to remember!" simon's brain: "OKAY, I won't remember it" ~a few more moments later~ simon: "THIS RULE IS IMPOSSIBLE TO REMEMBER!"

[@wade_23]

Simon, I haven't watched the video or solved the puzzle yet. But I just want to say what a beautiful opening rendition of Chasing Cars

[@willyklophaugen2191]

Since I donated to the Zetamath 2K stream yesterday I feel like doing it again today, decided to give the number of NOK that you needed seconds to fill box 5 after that it was self evident even for me (279 sec. rounded up).

[@CrackingTheCryptic]

Oh my goodness, thank you so much Willy. If I ever have long pauses for obvious things again, I can almost guarantee it won't be deliberate!!

[@amoswittenbergsmusings]

Simon,I screamed but in a kindly sort of way. This was an edition of Cracking Up The Cryptic. The unrememberable rule has given the sistern and brethern a *very* memorable and totally adorable video. Please allow the community the 'schadenfreude' when they see the human foibles of your weirdly wired brain. It is not malicious😎. Most of us are in awe of your abilities to navigate insanely complex logic.

[@Olivia.Duncan]

The 2 4 pair in the middle box looking at Simon explain the Impossible rule over and over like 'am I a joke to you' Cracking solve kept me thoroughly entertained 👌👌👌

[@kevinmahlendorf4955]

Also 32:30 🤣

[@aaronspiller3696]

Instantly the best guitar playing that Simon has done in his introductions. Love snow patrol

[@BaalsMistress]

I lost track of how often Simon forgot the "unmemorable" rule :)

[@TheFrogfather1]

What unmemorable rule? 😵‍💫

[@BaalsMistress]

@@TheFrogfather1 Dominoes cannot sum to 5

[@SSGranor]

I counted five times.

[@pjgrzem]

when Simon remembered it near the end to resolve the lower left corner was great

[@matthewjohnson6360]

I was basically screaming in my head.

[@MartinFindon]

An unforgettable solve Simon!

[@sniper1a259]

Simon: uses the "can't add to 5" rule to put 1 and 3 in box 5 Also Simon 2 seconds later: forgets the rule and can't put 2 and 4 in the same box

[@longwaytotipperary]

I absolutely ❤this puzzle! ❤️the logic! ❤️Simon’s happy reactions when figures it out (and when he remembers the un-rememberabe rule! Totally delightful! Thank you zetamath and Simon!

[@richardgodfrey7355]

I've been watching Simon solve his Sudokus for a few months now. Really enjoy them and find it very relaxing after a tough day at work. This evening I thought I'd actually have a go at one. With a few hints and tips from the video I actually solved it. Fantastic experience. Thanks to all those who make this possible.

[@juhish]

Have you tried Mark's GAS puzzles? They are great and very relaxing (until you start racing against the clock :) )

[@richardgodfrey7355]

@@juhish I've downloaded the App and done a few of the GAS ones. Who knew Sudoku could be so much fun!?!

[@Nevir202]

22:25 In this video: We watch Simon repeatedly cite the rule, while ignoring that it resolved r5, c6 AGES ago lol EDIT: 26:05 In classic Simon fashion, he resolves it without evert seeing it lol.

[@highpath4776]

A lot of horizontal scanning for the sum to five and suduko rules was missed for a later solve time resolved by vertical scanning, so Simon

[@gweria]

Okay, but the opening rendition of Chasing Cars was so good 🥺 the music on this channel doesn't get enough credit. The intro covers are such an amazing mood setter for the Puzzles. Honestly I'd love to hear some full version of the covers.

[@bkilian]

Simon: How ever will we solve this "34" at the bottom? Everyone, in unison, "NAUGHTY DOMINO!!". Simon: Nope, no idea...

[@MattCurney]

Omg Snow Patrol 🎶 ❤ “If I lay here, if I just lay here, would you lie with me and just complete the sudoku”

[@fluffycritter]

35:00 the irony of Simon forgetting the word "immemorable" is palpable

[@kevinmartin7760]

At 35:00 it is utterly amazing how many places the anti-5 rule can do something: It forces R9C2 to be a 3 because it is next to the 1 in R9C3 It forces R3C1 to be a 6; if it were a 3, R8C1 would be 4, putting a 2 in R4C1 next to the 3 in R3C1 It forces R8C7 to be a 5 because it is next to the 2 in R7C8 If forces (with a tiny bit of sudoku) R8C9 to be a 3 because it is next to the 1 in R7C9 and there is now a 9 in R8C7 (since *that* can no longer be 5)

[@Swisswavey]

21 minutes here. Great puzzle, I enjoyed it a lot. The highs/lows turned out to be not what I was expecting at first glance. Thanks for sharing it.

[@alexklink9777]

The intro song was so wonderfully done and such an amazing choice as well! Thanks for making my day as always, Simon ❤️

[@RealCadde]

35:35 "Two goes in the corner, no song for you" Simon says after having placed a three in the corner in box one.

[@emilywilliams3237]

A very nice puzzle - I always like German Whispers puzzles, and even the unrememberable rule is quite fun and a good twist. But Simon, my friend, how could you reverse blue and orange? When I saw you color in the lines with blue and orange I thought to myself, "If he discovers that the blue are high and the orange are low he will switch them before he goes further." Did you do that? NO! So I could absolutely not concentrate at all! I had no idea, truly, that my brain had been so well-trained by you and Mark with regard to high and low coloring! Seriously, though, this was a fun video - thank you! (But next time, that blue and orange thing ...) 🤣

[@Anne_Mahoney]

Yes, I noticed that too. There are RITUALS! There are PATTERNS! You're messing with our collective head, Simon!

[@davidrattner9]

Got to love when you feature Zetamaths puzzles and the joy it brings to you. Awesome you thru in a guitar intro for us.

[@jussikuusela7345]

I have heard the song (or similar) a dozen times but can't remember the name

[@pouletbelette]

@@jussikuusela7345 Chasing cars, by Snow Patrol

[@jussikuusela7345]

@@pouletbelette thx

[@longwaytotipperary]

Yay approachable sudoku! Yay streaming back tomorrow! Yay guitar intro! Triple yay!!! 🤗🤗🤗

[@davidrattner9]

Triple yay with triple smileys!!! More relaxing, peaceful music tomorrow waiting for us. 😃

[@longwaytotipperary]

@@davidrattner9 relaxing and peaceful! yay again! 😊

[@davidrattner9]

@longwaytotipperary if you subscribe to zetamaths channel..he is doing a live stream reaction to simon solving this puzzle at 5

[@longwaytotipperary]

@@davidrattner9 what time zone? I have a thing soon, but can watch later tonight.

[@davidrattner9]

@@longwaytotipperary central time zone..So in 40 Minutes..6 :00 by you

[@Gonzalo_Garcia_]

6:54 for me. And I'm finally up to date again! Fantastic puzzle, loved the break-in logic!!

[@TheSonicPerson]

I solved this puzzle last night and really liked it. My favorite part was how the whisper cells directly outside of box 5 all had to be the same parity and at the same time, all be different digits.

[@trisha2584]

lovely puzzle and amusing video. I was laughing how Simon could forget the rule until he didn't notice the 3 in the corner - starting to worry about his memory now.

[@hewholimpsmartin]

"That's 2 in the corner, no song for you." Meanwhile, first square in box 1 - the top left corner, 3 be like 😢 I love you, Simon, too much fun to watch you solve puzzles. This was an excellent sudoku - thank you, Zetamath.

[@inspiringsand123]

Rules: 03:55 Let's Get Cracking: 04:51 Simon's time: 32m31s Puzzle Solved: 37:22 What about this video's Top Tier Simarkisms?! The Secret: 8x (05:03, 05:08, 05:12, 05:22, 05:25, 06:27, 06:28, 15:57) Wally: 1x (26:12) And how about this video's Simarkisms?! Sorry: 6x (01:37, 09:05, 11:30, 21:16, 24:33, 25:25) Ah: 5x (13:38, 13:53, 23:40, 24:15, 33:03) The Answer is: 4x (26:45, 30:14, 32:18, 36:06) Naughty: 4x (25:33, 26:50, 31:03, 34:37) Stuck: 4x (21:40, 21:44, 33:03, 33:40) Beautiful: 4x (13:55, 15:29, 19:59, 37:28) By Sudoku: 4x (20:31, 21:29, 25:25, 29:50) Goodness: 3x (17:48, 22:37, 35:02) Shouting: 3x (02:04, 02:38, 35:12) Hang On: 3x (06:00, 08:34, 13:06) Naked Single: 2x (09:43, 32:34) Out of Nowhere: 2x (23:30, 27:08) Recalcitrant: 2x (31:01, 31:03) Lovely: 2x (15:31, 26:52) Gorgeous: 2x (20:13, 37:37) In Fact: 2x (02:40, 10:18) Obviously: 2x (08:54, 18:41) Wow: 2x (18:07, 18:11) Symmetry: 2x (15:27, 37:35) What on Earth: 1x (06:31) Nonsense: 1x (37:03) In the Spotlight: 1x (14:21) Brilliant: 1x (13:53) Break the Puzzle: 1x (04:42) Extraordinary: 1x (19:31) Approachable: 1x (00:41) Stunning: 1x (17:48) Whoopsie: 1x (04:34) Pregnant pause: 1x (11:32) What Does This Mean?: 1x (17:13) Pencil Mark/mark: 1x (29:53) Cake!: 1x (02:06) Most popular number(>9), digit and colour this video: Ten (2 mentions) Five (76 mentions) Orange, Blue (34 mentions) Antithesis Battles: Low (14) - High (11) Higher (4) - Lower (3) Row (12) - Column (12) 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!

[@emdiar6588]

Thorough stats, as ever. I feel this video demands the inclusion of a separate list, with time stamps, of every time Simon penciled a 4 next to a 1 or a 2 next to a 3, as well as the times he got stuck due to forgetting the rule and the times of feeling stupid when he remembers it.

[@jonbrowne]

Yessss! A sudoku that can make us feel human again! Nice one Simon! Highly enjoyable!

[@quothacreations3465]

another top notch puzzle by zetamath--wonderful, thanks. loved the break in. Simon, always a treat to watch your videos.

[@drlabos]

There was a beautiful and simple elegance to this puzzle. I don’t like it as much when puzzles have a clever break in but then towards the end become very nitty-gritty and you need to chip away at the logic to complete the puzzle. This one has the beautiful central idea and then the rest of the puzzle just flows from it when you figure it out.

[@mceajc]

My kind remark is that your wonderful unfolding of the starting logic I wouldn't spot in hours of staring, followed by moments of feeling smug when I spot a tiny fragment of answer before Simon does - it is enjoyment on every level. Always enjoy a bit of guitar entertainment as well - cherry on top of the gorgeous layered chocolate cake that is CTC videos.

[@Syrange13]

I love that he uses the rule to put 1 and 3 into box 5, but the 24 pair which is resolved BOTH WAYS stays as a pencil mark. Never change, Simon ❤️

[@nickatty462]

That was one where I got completely stuck, thought "I'll have to watch the video" but by the time Simon had got to where I was stuck he inspired me! I'd got the one "extreme" digit outside the central box, and then got the others by a less elegant approach ("one of them has to be the next digit (3 or 7) which has to have 8/9 or 1/2, which means it has to be the one that forms a pair with 1/9. And so on. After that break in it's pretty easy but surprising how often you need the no-5 rule. Very neat puzzle indeed.

[@th.nd.r]

Beautiful musical intro, I love that song. Awesome puzzle! The thing in the middle was so beautiful geez. Well solved, I was very entertained by the forgotten rule lol

[@qzb2ymig]

I got a bunch of alternating colors in place, with possible high and low values penciled in, and the just stared trying to figure it out. Gave up and started watching the video when Simon commented on forgetting the rule. D’oh! Paused the video and solved the puzzle in minutes after that.

[@5t757]

14:24 today, lovely how this ruleset works together.

[@oldguydoesstuff120]

After watching the intro and reading the title of the video, I had no problem remembering the rule. I had a problem spotting it in the grid. Got close to the end and completely stuck, looking all over figuring "the rule" had to apply somewhere and simply not seeing it. After about 20 minutes or so, I broke down and used the video to find it. And it was right there, staring me in the face for a very long time.

[@grahamrskelly6042]

Thank you all for being a part of this beautiful channel. Loved the puzzle, so fun stay safe everyone

[@blcmd]

After completing the whispers lines, I got stuck. Watched the video for a bit until Simon remembered the unrememberable rule and realized that I failed to remember it as well. Paused the video and quickly completed the puzzle. Misery loves company. Thanks Simon!

[@Baritocity]

27 minutes for me. I always enjoy Zetamath's puzzles.

[@EmilyGamerGirl]

"If I lay here, if I just lay here, would you lie with me, and just forget the world?" wonderful intro!

[@Raven-Creations]

21:40 "This is a 24 pair" - really? Can you put the 4 next to a 1, or the 2 next to a 3? 31:10 "How can I resolve the 34? They're being recalcitrant" - can the 4 really go next to a 1? You also had a 35 next to a 2, and a 349 next to a 1 in box 9. I did enjoy the break in - very elegant, and a fun solve. _I_ had no difficulty remembering the rule, it's just you Simon😉 It wasn't so much shouting for this one, more hanging my head in disbelief and sadness.

[@toddkirby1248]

that was so much fun to watch. i got so excited each time simon forgot the unforgettable rule

[@kaare1992]

I hope you are alright Simon. Thank you and Mark so much for these videos, which helps me through life’s rollercoaster. You chaps are much appreciated!

[@ericpraline1302]

Very nice break-in, surprisingly easy afterwards.

[@cathybryant5119]

I haven't laughed so hard at a CTC video in ages. And I think the word Simon was searching for to describe the rule is "forgettable". He forgot...

[@Shurtugal1427]

What a beautiful puzzle. Amazing break in, with a 3 in the corner to top it off. Just stunning! Ps. Don't you worry, Simon, I sang the three in the corner for you ;)

[@johnfrederick6786]

38:17 for me, and it would have been about 3 minutes shorter if I had not forgotten "the rule" to resolve the final deadly patterns. Well done ZetaMath!

[@srwapo]

21:36, fun coloring, interesting logic for the break-in, didn't think that I was forgetting about the rule about the sum of 5, but turns out I missed it in two locations near the end and spun my wheels for a bit.

[@sarahnash7174]

This was a great fun video! Very clever puzzle too!

[@Rach881101]

32:11 for me. Wonderful puzzle!

[@se7en13]

Chasing Cars by Snow Patrol (the intro guitar) was my wedding song. That was nice to hear.

[@RealCadde]

28:30 I was thinking, where do we go from here? I am sure there are other things one could do at this point but i for one started thinking about the unrememberable rule that everyone seems to forget. If only they had remembered to give their "remeberall" ball a squeeze (red smokey ball from Harry Potter) they might have not forgotten. The corner marked 1's in box one is interesting in terms of where does 4 go in that box. There's a 4 in row one. There's a 4 in row three. The 4 is reduced to one of two places in box one, R2C2 and R2C3. Now bare with me while i explain why it's not in R2C2! In box 7 there also needs to be a 4. It's not in row 7 due to the placed 4 in that row. It's not next to a 1. Therefore there's a 4 in column 1 or 2. Which lines up with the 2-4 pair in box four, eliminating a 4 from R2C2! Furthermore, 4 cannot go in the middle of a green line that only occupies box seven. It would require two nines on that green line. And you also only have one place for the 1 digit in box nine.

[@joubess]

Simon, this was a very enjoyable puzzle! I have never completed a Zetamath puzzle on my own before. What a treat! The last rule was vital to breaking in and made it much easier to finish!

[@shawnmichajluk2044]

Great puzzle! Couldn't have done it without Simon's help. Wish I can see what he sees.

[@markp7262]

23:49 finish. Loved this puzzle! Being able to map out the colors quite extensively at the beginning led to some amazing logic! Excellent!

[@nomore6167]

Simon's extreme tunnel vision at 22:26 is nothing short of amazing. The way he can apply a rule to a cell while completely ignoring the same exact scenario just one one cell away has to be one of the wonders of the world.

[@Seth0326]

It's funny that he calls this approachable compared to yesterday's. Yesterday's miracle movie puzzle took me so long, but I made steady progress the whole way. It's just that the nature of the rules made it take forever. This one is simple, but I've been staring at it for 10 minutes, coloring things, and I can't see how to break in at all. I'm probably missing something simple, but sometimes puzzles like this are way harder than the long ones, because if you can't see the break in trick, you're just stuck.

[@MisterM2402]

22:51 for me. I thought Simon forgetting the rule was just him having an off day, but I was CONSTANTLY forgetting the rule too! I'd been pre-warned to pay extra attention to the rule and I still kept forgetting. I think the puzzle is cursed, somehow.

[@scarbo3697]

25:34 Really fun puzzle! A non-obvious but findable break-in with no pointlessly difficult steps thereafter. Just lovely.

[@amysteele2488]

That swirl looked very hypnotic... perhaps that's why you kept forgetting the rule?

[@davidrattner9]

You always post lovely, thoughtful and clever comments. 🙂

[@EmonEconomist]

This was a great puzzle! I solved it in 31:35 (so only slightly better than Simon, and without the hassle of speaking to camera), and thoroughly enjoyed the ruleset and logic. :)

[@pjbrady47]

Bah, it took me the hint around 19:40 to solve this. I was making progress but just couldn't do it until Simon pointed out that one clue. Wow, that was a good puzzle. Thanks!

[@MariaVlasiou]

Loved it. Delicious. 26 min and fun. You think a bit about the approachable opening and the puzzle swirls you around, guiding you by the hand.

[@user-kt9vr1wj6y]

36:53 for me. The negative constraint of V is important everywhere!

[@zetamathdoespuzzles]

I was very pleased with how often I was able to use it! Simon may have been... less delighted, but it was a lot of fun to watch!

[@user-kt9vr1wj6y]

@@zetamathdoespuzzles It's a well constructed puzzle. I love it.

[@mollygustafsson7546]

I think this was the first soduko from the channel i managed to complete! I only got help from the video right in the start, and it took me 180 minutes, quite a long time but I'm proud of myself! XD

[@David_K_Booth]

Thanks Zetamath! I particularly enjoyed the break-in. I suspected early on that it was going to involve ruling out a particular domino, but it took a bit of hunting to find the right one.

[@leppyr64]

A very nice rendition of Chasing Cars!

[@pixllo]

Wow 20:31 for me, it felt really good. Straightforward enjoyable puzzle Edit: not that straightforward, the word is wrong, but it did feel like it showcases non common techniques in a way that can be grasped easily.

[@DarrenNakamura]

Finished in 39:40. I'm usually not too good at negative constraint puzzles! This was a nice one.

[@JohnRandomness105]

I was slowly but surely inching my way forward, until I broke the puzzle when a 4 was forced next to a 1. I originally thought that the no-sum-to-five rule was there to resolve high-low on the lines. But then I found I could place other digits based on the rule. Until I encountered my first application of the rule, I used letters instead of numbers. The letter corresponded to its place in the alphabet, or 10 minus its place. For example, A = 1 or 9 and I = 1 or 9 as well. Then a BC domino resolved the digits. 17:20 That's how I placed my first digit, an F. The neighboring digits along the line were therefore A. 24:00 Once he reached the cell (R6C1) that broke the puzzle with a 4, and he ruled out the 4, I somehow managed to fiddle a few cells and get back on track. I finally solved it, hopefully. 33:20 I'm muttering over the 34 cell next to the 1 down at the bottom.

[@dicecupmerlin6756]

I love solving the puzzles before watching the videos so I can be one of the people shouting at Simon :D

[@Sam-ch9xu]

26:17 - Even with the title as a reminder, I still forgot the 5 rule many times!

[@susanollington5257]

I’ve always loved the song you did in the intro - for the first section, there needs to be more emphasis on the lower of the two notes and less on the higher - you did good with it when the notes changed though, you can also be more loose with the Melody rhythm but that can be really tricky when you have the straight rhythm supporting Can’t wait until your next bit of guitar! You have such a sweet tone and I can feel the care you put into portraying the emotions of the pieces you choose

[@KONPAI666OPPAI]

13:44, but it took me 3 tries because I kept mucking up number placements somewhere along the line. Otherwise, very approachable and I like how much the anti-5 sum domino rule helps to place the lower 4 numbers

[@rhodrijames7962]

Heh. Simon, every time you remembered the un-rememberable rule was pretty much the same moment I went "Oh wait, the rule!" So no shouting here!

[@mrsfrappucchinoblub6005]

Would you lie with me and just forget the world? ❤ Thank you for that beautiful intro!

[@Coyotek4]

20:41 ... a fun 'parity' solve Nice puzzle!

[@andrewgrant6516]

This video was like watching Simon wander around a school corridor with a "kick me" sign on his back. It's a masterclass in saying one thing and then immediately doing the opposite.

[@PeterZaitcev]

32:02 for me, it was a nice relax after yesterday's nightmare

[@chitraagarwal8259]

After the two monstrous puzzles last couple of days.. this was a welcome relief.. my solve path differed from simon becoz ... I did remember the rule !!! Also i used letters along with hi-lo coloring on most of the green lines before i found the break-in, so my puzzle unwound a lot faster

[@benjaminrealy5661]

20:30 loved this puzzle. I'm a suckered for maths puzzles. Even though it was basically just no 4s next to 1s and no 2s next to 3s. But coloring was very helpful (always do on green lines unless other rules make coloring a different pattern more optimal.) All these complex puzzles lately, finally an easy, but thought inducing puzzle. Say one notch more challenging than approachable. Need to think of a good term for it.

[@Jablicek]

It was rather like setting up dominoes - you spend ages putting them in place and then you remove the really obvious thing you overlooked and the whole lot falls over. Cheers, zeta, that was great fun!

[@pirukiddingme1908]

35:16 Focusing so much on the rule you miss a 3 in the corner. A tragedy 😂😢

[@smylesg]

Simon forgets the primary rule that you color oscillating cells purple and green until you know their nature.

[@frederf3227]

I might have set A=1,9 B=2,8 C=3,7 D=4,6 and done the center as ABCD5 to start.

[@jacobcombs1106]

00:28:25 - 14% Faster than Simon, a UNICORN! Usually I am 100-200% slower than the professionals, but this was a rare puzzle I excelled at. I saved a lot of time bifurcating by using center marks to show the spiral with highs in one spot and lows in the other and the corner marks to show the opposite and work out what they must be then once I find something that breaks one or the other delete the bad configuration. It seems that technique is considered bad form by the professionals, but I'm not good enough to forgo it. I quickly Identified R7C5 had to be either 4 or 6 and did my bifurcated spiral from there. As I worked out the threads of both options in tandem I discovered putting a 6 in R7C5 would force a 4 and a 1 to be adjacent, which is against the rules so I quickly unwound the spiral into the correct high low pattern and the spiraled out into the rest of the puzzle. It unwound beautifully. I loved this puzzle.

[@heatherfyffe3618]

omg this one took me an hour to find the breakin... In that time I found all kinds of interesting relationships but couldn't fathom how to turn them into a digit or how to resolve the polarity. But I persisted and found it! Once I did, the rest of the solve took only 15 minutes and I never forgot the unrememberable rule haha - tho I almost missed it at the end, I thought I had 2 valid solutions (the app said they were both valid but of course it wasn't checking the 5 rule) until I saw a 2-3 that I'd missed. Missing is not the same as not remembering. 😉 Now I'll watch the video and lament how much faster he'll find the breakin haha

[@RL-gl8qg]

In this house, we play favorites. (Half a million of them). id est, V, X, Knights, Kings, and Liars. Killers in cages whisper secrets in German (or maybe just soft-spoken Austrian). Maverick buzzing birthday bobbins And a ban on all rens. When in doubt Just keep coloring. The fog will lift The three will be in the corner. Six strings, no more Quoth the Raven at the door. And then a Miracle occurs. (The cake, Of course, Is chocolate.)

[@scarbobblecop]

Simon remembered the forgettable rule just in time to miss the song for box 1’s 3 in the corner. Fun video!

[@starcastle1181]

Loved the intro! ❤️💕 This was a VERY entertaining solve 😂😂

[@ChaosKnight7000]

I love how the sign-off was like "you'd better be kind or else..." 😆

[@blastedt]

solved along with this, only unpausing when I needed help and only had to unpause a few times! i figured out your whisper secrets too :) thanks for the videos

[@maljamin]

I am as bad as Simon with some rules, except that I realized the "unmemorable rule" was an "orange domino" rule! Naturally more memorable and a good reason to keep coloring.

[@guidocalderini2381]

27:35!! First time I beat Simon. Let's see if C&M can beat him too.