The Miracle Snake

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** TODAY'S PUZZLE **
A collaboration today featuring two absolutely top-tier setters: Nordy and yttrio (who set at Nordyttrio!). It's called Earth Wurm and it really is astonishing that just four squares and two circles is enough to specify a unique solution. It's a blast to solve too so do give this one a go if you can!
Play the puzzle at the following link:
sudokupad.app/lbvymeu3as
Rules:
Normal sudoku rules apply. Construct a one-cell-wide snake of orthogonally-connected cells whose two endpoints are given as circles. The snake cannot branch and cannot touch itself orthogonally, but may touch itself diagonally. Additionally: All squares are on the snake; a digit in a square gives the number of snake cells seen in all horizontal/vertical directions combined, including the cell with the square - non-snake cells block the vision; the snake acts as a “German Whisper” line ie adjacent digits on the snake must have a difference of at least 5.
** NEW JAMES BOND SUDOKU HUNT OUT ON 1 APRIL **
Do you know your Drax from your Goldfinger? Make sure you've got your licence to kill renewed to enter our latest competition: a brand new James Bond-themed sudoku hunt!
Apart from the new James Bond sudoku hunt, there's:
- Simon's latest forays into the world of Islands Of Insight
- Mark's video looking at the new OneUp puzzle from Rodolfo Kurchan.
- his solve of Region Geometry by Emre Kolotoğlu (3hr 36min long...!)
- Mark's solve of The Times Club Monthly cryptic crossword
/ crackingthecryptic
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▶ SUDOKU PAD - Use Our Software For Your Puzzles ◀
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ALSO on Amazon: Search for “SudokuPad”
▶ Contents Of This Video ◀
0:00 Theme music & Puzzle intro
2:04 Please subscribe!
2:31 Join Us On Patreon
2:50 Rules
6:36 Start of Solve: Let's Get Cracking
▶ Contact Us ◀
Twitter: @Cracking The Cryptic
email: crackingthecryptic@gmail.com
Our PO Box address:
Simon Anthony & Mark Goodliffe
Box 102
56 Gloucester Road
London
SW7 4UB
(Please note to use our real names rather than 'Cracking The Cryptic'.)
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Опубликовано:

15 июн 2024

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Комментарии : 179

@pirukiddingme1908 Месяц назад

40:54 “my logic was exceptionally good, except in one regard, where it was imbecilic” 😂😂😂 what a line

@KC-pe9vt Месяц назад

a german whisper snake and you make the snake grey and non-snake green. whyyyyy

@pacman52280 Месяц назад

Very good question.

@Scarybug Месяц назад

Some snakes are grey 🤷‍♀️

@user-gj5uc4yx3i Месяц назад

Even the snake in the thumb nail is green! 😢

@nicka3697 Месяц назад

Mine was orange and blue with a nice dark green line

@mipsuperk Месяц назад

I did green snake on grey other stuff. It was right there. Just swap the colors!

@noragar Месяц назад

A little bit interesting that it's stated that the snake can touch itself diagonally, but then it doesn't. I suppose stating that it can't touch itself diagonally would have made a couple steps trivially easy.

@Ytterbio Месяц назад

Nordy and I have been waiting to see when Simon would get to say the name "Nordyttrio" 😃. Fantastic solve as always, finding all of the major intended logical steps along the solve path! We were both just as astounded as everyone else that the puzzle managed to not only have a unique solution with just the given clues, but also that it managed to have a logical, flowing solve path.

@longwaytotipperary Месяц назад

Lovely puzzle!!

@rebmcr Месяц назад

Is it a required step to mark r6c4 as non-snake? It seemed important in my solve, and Simon got stuck until he proved it (though I got there through its effect on the head and thus breaking the 4-viewing square).

@Ytterbio Месяц назад

@@rebmcr It's possible to make sufficient progress without needing that deduction. The key deduction around that point in the solve is that the snake must go down into at least r5c6. With that, it's possible to get the snake shape in box 5 by simple non-loop and non-branching deductions.

@chrissolnordal9421 Месяц назад

It was wonderful, thank you!

@martysears Месяц назад

A fantastic construction / discovery that I really enjoyed solving myself. This sort of snake building puzzle is right up my street. Absolutely remarkable how few clues were needed, great work both of you

@attker89 Месяц назад

"My logic was exceptionally good, except in one important regard, where it was imbecilic." 40:45🤣

@RoderickEtheria Месяц назад

It's fun that it gives you the option to touch diagonally.

@zaclewis1869 Месяц назад

Why isn't the snake green?! I realize not all snakes are green but are many times depicted that way AND this one was also a German Whisper line. HUGE missed opportunity... (insert sarcasm) 😂.

@_-_-Sipita-_-_ Месяц назад

my snake was bloo

@fresnik Месяц назад

Simon doesn't fit in a box. If he wants to color water green and grass blue, then that is what he does and there is nothing we can do about it. Conformity is for the weak-minded. (I kid of course)

@user-gj5uc4yx3i Месяц назад

"The snake... may touch itself diagonally." Snake is NOT touching itself diagonally in the final solution. We've all been trolled!

@AngryKettle Месяц назад

I'd love to see someone do a blind solve with that part removed to see how much easier it is

@thescrewfly Месяц назад

One of the reviews on LMG was "a bit risqué", oh dear, but later Simon casually informs us that "the snake can't go there" because it would be "too naughty regarding what it's touching". Excellent!

@SVURulez Месяц назад

I did parity shading for my entire snake and just drew a line for clarity. That made it much easier to see that you'd run out of low digits in row 2 if the snake went all the way to the right edge of the grid.

@tobiasfischer1879 Месяц назад

I love how the rules allow for the snake to touch corners, and then proceeds to never touch corners

@inspiringsand123 Месяц назад

Rules: 02:56 Let's Get Cracking: 06:41 Simon's time: 42m27s Puzzle Solved: 49:08 What about this video's Top Tier Simarkisms?! The Secret: 4x (06:47, 08:22, 13:42, 13:48) Bobbins: 1x (44:24) Three In the Corner: 1x (45:13) And how about this video's Simarkisms?! Snake: 142x (01:22, 03:05, 03:16, 03:16, 03:20, 03:22, 03:37, 03:47, 03:50, 04:10, 04:17, 04:23, 04:26, 04:39, 04:44, 04:48, 04:55, 05:03, 05:42, 05:52, 05:57, 06:09, 06:49, 06:53, 06:53, 06:56, 07:03, 07:09, 07:12, 07:17, 07:23, 07:25, 07:28, 07:28, 07:29, 08:27, 08:35, 09:16, 09:40, 09:58, 10:06, 10:07, 10:32, 10:36, 11:00, 11:20, 11:26, 12:08, 13:13, 13:25, 13:34, 14:51, 15:43, 16:03, 16:30, 16:38, 16:45, 16:56, 16:56, 17:01, 17:05, 17:05, 17:39, 18:23, 18:48, 19:20, 19:21, 19:21, 20:01, 20:18, 20:28, 20:34, 20:34, 21:13, 21:16, 21:16, 21:34, 21:43, 21:59, 22:14, 22:19, 22:22, 22:39, 22:42, 22:54, 23:02, 23:21, 23:34, 23:37, 23:38, 23:49, 24:10, 24:10, 25:12, 25:25, 25:27, 25:43, 26:16, 26:21, 26:23, 26:28, 26:35, 27:37, 28:00, 29:17, 30:56, 31:09, 31:14, 31:24, 31:55, 35:10, 35:18, 35:31, 35:38, 35:41, 36:07, 36:20, 36:26, 36:28, 36:28, 36:47, 37:41, 38:35, 39:05, 39:05, 39:47, 39:47, 39:55, 40:01, 40:01, 42:55, 44:26, 44:27, 45:01, 45:25, 45:29, 45:31, 46:49, 46:58, 47:43, 48:41, 48:59) Ah: 12x (04:03, 16:34, 16:34, 18:09, 19:36, 27:29, 27:52, 42:33, 43:32, 43:47, 44:57, 46:21) Brilliant: 9x (00:48, 01:11, 01:11, 26:55, 27:04, 37:33, 38:08, 38:11, 49:04) In Fact: 9x (05:41, 14:44, 17:59, 22:11, 28:22, 35:22, 36:00, 37:58, 42:36) Beautiful: 8x (16:59, 17:01, 17:15, 18:31, 19:41, 44:57, 47:52, 47:57) Touch Itself: 7x (03:53, 03:55, 04:10, 07:19, 19:24, 21:45, 22:01) Wow: 5x (26:01, 26:44, 27:29, 29:49, 32:20) By Sudoku: 4x (19:34, 19:51, 22:36, 43:05) Good Grief: 3x (09:02, 38:01) Obviously: 3x (01:50, 05:35, 08:49) Unique: 3x (01:34, 01:42, 23:55) The Answer is: 2x (08:32, 33:48) Clever: 2x (19:46, 49:21) Fascinating: 2x (32:30, 49:25) What Does This Mean?: 2x (03:16, 12:18) Nature: 2x (12:04, 43:02) Weird: 2x (25:16, 49:33) Goodness: 1x (41:08) What a Puzzle: 1x (48:59) Sorry: 1x (32:01) Bother: 1x (46:49) Naughty: 1x (04:30) Bingo: 1x (43:59) Lovely: 1x (38:00) Of All Things: 1x (19:34) Bizarre: 1x (37:35) Lunacy: 1x (44:03) Pencil Mark/mark: 1x (13:42) Most popular number(>9), digit and colour this video: Seventy Eight (3 mentions) Six (86 mentions) Green (3 mentions) Antithesis Battles: Low (21) - High (19) Even (8) - Odd (3) Higher (6) - Lower (4) Column (15) - Row (10) 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!

@dylanlenn7836 Месяц назад

the non snake non german whisper cells are green of course

@longwaytotipperary Месяц назад

Either it’s snowing in the UK in April, or Simon is on holiday/vacation. 🤔 Hope you’re having a great time, Simon, and thanks for keeping the daily Sudoku going!

@uigrad Месяц назад

Someone else figured out that it was recorded on January 8, based on the number of days the puzzle has been out (shown on the completion screen). He is on holiday at the moment.

@PuzzleQodec Месяц назад

Legendary comment by Calvinball. Befits this brilliant puzzle.

@Celvinbell Месяц назад

Thank you, I'm considering this my CTC debut lol.

@martysears Месяц назад

@@Celvinbell Take a bow :D

@longwaytotipperary Месяц назад

Yes!! Very well said!!

@longwaytotipperary Месяц назад

@@Celvinbell😄

@RichSmith77 Месяц назад

Am I the only one who ends up with a blue/orange striped snake? I feel like I have to follow the CtC standard colouring for high and low digits, or it just doesn't feel right.

@SamAHill Месяц назад

I did, except I used pink for 456 because at first I thought you couldn't put a 4 or a 6 except at the ends. It did seem strange to see Simon using pencilmarks for high/low instead of colors!

@ericpraline1302 Месяц назад

I had a turquoise/orange snake for reasons I cannot fully elucidate.

@stevesebzda570 Месяц назад

Yeah, blue and orange, also. (With a green pen tool line to boot) 😂

@steve470 Месяц назад

30:25 for me. Quite enjoyable puzzle! From the discrepancy in the number of days the puzzle has been out, it looks like this video was recorded around the 8th of January. Hope you're having a lovely vacation, Simon!

@bobblebardsley Месяц назад

That would explain the snow 😅 It was 13C/55F here today.

@DarrenNakamura Месяц назад

Finished in 52:04. I love snake puzzles! I especially love whisper snake puzzles, because of the checkerboard logic that arises from them.

@emilywilliams3237 Месяц назад

I loved this. I started it on the day it was posted, but things got busy so I had to come back to it. Glad I did - thank you, Simon!

@chocolateboy300 Месяц назад

I finished in 85 minutes. The logic of German Whispers on the Snake were very satisfying to figure out. I greatly enjoyed this one. Also, the picture looks kind of like a heart. It must be a repeating theme in these snake puzzles to have a picture that looks like a heart in the end. Great Puzzle!

@gatlygat Месяц назад

This is so so good. And the video, Simon, is a delight. If the day offers nothing else, it already has a highlight. Hurrah, God bless you all!

@stevieinselby Месяц назад

That was fantastic 😍 - absolutely incredible that such a sparse grid can give a unique solution! A relatively straightforward solve once you know a few tricks like bishops colour, which took me about half an hour. One step that might have helped Simon would be to consider whether the square in r2c7 can see all 6+ of its snake cells vertically ... and by connectivity, it can't, because it would run into the left-hand end circle and leave no way of joining the snake cells in the top-left of the grid. This means that it must go right from that cell.

@Swisswavey Месяц назад

I struggle with snake puzzles usually but this wasn't too bad, just under 40 minutes. The practice must be paying off!

@nathanialblower9216 Месяц назад

Great job, Simon! Don’t know why, but this solve was too fun to watch; thanks for all you do!

@maht0x Месяц назад

I never tire of naughty snake

@soocool78 Месяц назад

How does anyone set a puzzle like this

@emptyset1312 Месяц назад

Very neat puzzle, and pretty approachable as well, so I'd recommend trying it to anyone on the fence about giving it a go.

@An_AlphaDuck Месяц назад

27:44 easier way to see: the 4 in R8C3 needs only one more cell, so snake either turns left into R7C2 or continues to R6C3. If it goes to R6C4 it has to connect to R5C2 and can't take another cell in C3

@Annawastaken Месяц назад

Love it, what a puzzle!!

@Hakucho64 Месяц назад

Took me a while, but loved it all the way, thanks!

@elizabethshort9632 Месяц назад

I always feel better about myself when I have to come back to the video for help when Simon then struggles too

@anaayoung9142 Месяц назад

I decided to try it, after the German Whispers rule, and I was able to do it!!! Super happy to do a snake puzzle. 🎉 Thanks to all the knowleged I learned in this channel! 🤗

@MattYDdraig Месяц назад

29:10 Such elegant simplicity. Beautiful work by the constructors.

@Antinomiste Месяц назад

Such a blast to solve ! Took me some time, but with no real blockage and even the sudoku part that I usually dread were a breeze!

@Gonzalo_Garcia_ Месяц назад

15:51 for me. Very enjoyable puzzle, loved it!

@markp7262 Месяц назад

21:27 finish. A fun little puzzle with some nice straightforward logic. Excellent!

@frankjiang1857 Месяц назад

Finished in 32:32. The logic of the snake was superb. And the squares helped make a lovely break-in and first 3/4 of the puzzle. With the sudoku and logic of the snake making up the last 1/4. Fun puzzle!

@piarittersporn Месяц назад

Brilliant puzzle.

@leojs5673 Месяц назад

this one was a lot of fun and surprisingly intuitive!! 42 minutes for me.

@Afterthoughtbtw Месяц назад

Lovely puzzle.

@petergerlagh9858 Месяц назад

that was a fascinating puzzle!

@OverkillSD Месяц назад

32:25 for my solve. What fantastic logic.

@ericpraline1302 Месяц назад

Good clean fun, thanks.

@benjaminrealy5661 Месяц назад

42:19. Systematically played very well until I got caught up on the snake piece crossing from box 6 to 9. I mistakenly assumed the 8 had to go to the 3 to the left of the box and kept trying to figure out ways it could continue to either circle. It at least caused me to fill in a lot of the standard sudoku to help find the error.

@titusadduxas Месяц назад

1:05:57 - Absolutely loved this one; snakes are my favourite variant and this one was magnificent.

@F1r1at Месяц назад

35:56 for me, what a nice puzzle! I like how it makes you to actually think about the sudoku and the snake at the same time!

@ThePoxun Месяц назад

The snow is going to settle? Emm... not recorded recently then 🤣

@steve470 Месяц назад

The 8th of January, from the looks of things. Simon's congratulations screen says the puzzle has been out 4.7 days. It's 110.9 days now.

@LiquidElectron Месяц назад

Simon has been on holiday for a while. He did Friday’s crossword from his laptop.

@CaptainSpock1701 Месяц назад

21:40 - An orthogonally connected snake that can't touch itself has a wide turning circle. Now *THERE* is a knowledge bomb for you!

@brianshilling Месяц назад

At 20:50 you were pondering if there was another way to see that, there was! The 9s in box 7 takes the 9 out of the 89 in box 1. That means inr1c1 is a 7 or 9, and a 9 is impossible because it forces a 6 in that column, with 1s on each side meaning the 12s in box 1 have to be both 2. It was extremely circuitous, and I'm glad you found the smart way vs the goofy way I did.

@sampathkumar-ej7xl Месяц назад

A great puzzle except for what I found a bit confusing. For a while I kept treating the circles like the squares in terms of the counting of the orthogonal snake digits.

@davidblake6889 Месяц назад

Solved it eventually, but got stymied by thinking the ends of the snake acted the same as squares. Doh! Great fun, despite my idiocy. I made my snake yellow to be different... Wonderful puzzle!

@leosmith848 Месяц назад

Huge fun!

@HunterJE Месяц назад

It's possible skip some steps by asking at 39:30 where the snake goes from r3c8 - a 3 or 4 must be next to an 8 or higher, and r4c8 sees 8 and 9...

@johnbell9074 Месяц назад

Wow that wasn't too bad. 40 mins for me. Thanks!

@dangrene617 Месяц назад

Wow, amazing! I wasn't quite sure how to solve that one, but it came together beautifully bit by bit. Glad I already knew about "checkerboarding" on whispers. Had a few stalls staring at the screen for a while, but the next step always came eventually. 32:19 solve time.

@luisfonseca2299 Месяц назад

11:18 the way I see it, I pretend the grid is a checkerboard. Any orthogonally connected path between two cells must switch between black and white cells, therefore if start and finish are same color, then you must have step the same number of times in white and black cells -> total number of steps is even. Similar argument concludes that otherwise it's an odd number of steps

@WimmekeVL Месяц назад

My puzzle broke like 2 minutes in. Luckily I don't mind watching Simon solve a puzzle. Hopefully I'll learn what I did wrong.

@WimmekeVL Месяц назад

I sent my three down, not to the right. Didn't figure out that it had to be 6 if it went down.

@aidanfreeman2932 Месяц назад

Four 3s in snake corners, i feel robbed of a song 😂 what a puzzle!!

@uigrad Месяц назад

A bit of a slip up at 20:40. He concludes that r1c1 must be a 7 because it is between a 1 and 2. That logic works the opposite way. It very well could be a 9 in r1c1 and a 7 in r3c1. It was pretty late in the puzzle when I finally reconciled r1c1 and r1c3. He was just lucky that he put them this way.

@TheRealPowerDoge Месяц назад

lets fiddle with the snake slightly💀💀💀

@MWSin1 Месяц назад

I made mine a gray-banded kingsnake.

@Leslie_AF Месяц назад

32:00 for me. These rules coming together made for some pretty fun logic.

@sushirunner Месяц назад

Much simpler thought at 34:00 - can the number in the square be a 9? can it be a 7? can it be a 6? (in that order)

@rafaelrust3561 Месяц назад

if anyone needs it i think this puzzle would be easier if it was specified that the snake in fact doesn't touch it's diagonaly

@ILapras Месяц назад

Is the way Simon determined the properties (high/low) digits on the squares and circles using bishop diagonals common knowledge? I've watched a fair bit of CtC (not much recently though) and never seen that logic used. I got stuck because i couldn't find that one, maybe I'm just stupid haha

@ubk42 Месяц назад

I got to all squares are on the snake and the snake does not touch itself orthogonally and thought I can't even do that much ignoring everything else. I suppose it would have said instead cells if the whole grid was to be on a snake?

@alienrenders Месяц назад

102:08 for me. Got stuck for something like an hour and for some reason, I kept ignoring that lone 4 at the bottom square that I had gotten right at the start of the puzzle. Once I saw it, I solved the rest of the puzzle in under 10 minutes. Ah well. Really nice puzzle though!

@srwapo Месяц назад

42:04, but I felt stuck for such a long time, I'm assuming I left the timer paused at some point. There were a few dumb moments where I was stuck for not using square clues and I spent too long thinking the line could loop around the corner of box 7, which would require five high digits in column 1.

@six_5000 Месяц назад

I usually don’t even bother with snake/loop puzzles, but the one I did in 39:44 🎉 🐍

@RecreationalCynic Месяц назад

Did it in 40:58. I made a few hasty and incorrect deductions/assumptions that forced me to undo quite a bit of progress, so I potentially could have had a quicker time if I stopped to think more carefully.

@MAUOMBO Месяц назад

Very entertaining

@Tepalus Месяц назад

It took me TWO hours to realize the snake in fact can NOT touch itself orthogonally. Well... Had like 30min after that... 🙃

@Rach881101 Месяц назад

47:39 for me. Nice puzzle!

@psiphiorg 21 день назад

Clever puzzle! My time today was 31:33, solver number 6011.

@danielszanto2955 Месяц назад

Wurm is german for worm.

@leosmith848 Месяц назад

or dragon...

@user-gj5uc4yx3i Месяц назад

Does an earth dragon spew lava?

@darthrainbows Месяц назад

Nice one, solved in 56:55

@TurquoizeGoldscraper Месяц назад

58:57 for me - that was tricky, but I feel good for beating it.

@nicocost33 Месяц назад

64.20 for me. Wonderful puzzle.

@myfyrmadocjones Месяц назад

Snow? Not today surely?

@steve470 Месяц назад

The 8th of January, from the looks of things. Simon's congratulations screen says the puzzle has been out 4.7 days. It's 110.9 days now.

@zealot2147 Месяц назад

27:55 surprised how quick I solved that, it’s actually quite restrictive logic and for a miracle at that

@highpath4776 Месяц назад

The 6 example on the snake rules I found confusing , should it not be a 7 , being 4 down and 3 in total across (as the language in the rule is ambigious)?

@RichSmith77 Месяц назад

That would double count the cell containing the square. There's nothing to suggest you count some of the cells seen twice. It sees six cells, including r2c6, counted once because it's one cell.

@timothyjamison8172 Месяц назад

61:22 for me! Good puzzle!

@xerodeus2337 Месяц назад

ahhh I was so close to solving this but halfway through I thought in my head the bottom right circle had to see 6+ squares, but the circles don't follow the square rules, and so I made a mistake :(

@spacecolonizer9508 Месяц назад

funny. the snake was allowed to touch itself diagonally, but didn't.

@WimmekeVL Месяц назад

Is this an older puzzle you grabbed out of your 'I didn't have time to do a new video' box ? For I can't believe Sven would have taken your 'I loved this puzzle' button away at the end...

@LednacekZ Месяц назад

2 F-ing times did I mistake the rules for squares for circles. I am too stupid today.

@henrym5034 Месяц назад

48:56

@KyleBaran90 Месяц назад

I'd do more puzzles if the software didnt reset cookies every time there was an update. Annoying to have to reconfigure things every time

@RealCadde Месяц назад

Simon please... 28:30 You should see that R7C3 needs to connect to snake somewhere. Likewise, R5C2 needs to connect to snake somewhere. If either of them don't connect directly to each other there's NO room for one of them to get out of there. So they HAVE to connect. There are three ways they can connect. All in column 2, all in column three and half/half through columns 2/3. Can it ever connect through R5C3? If it did, R8C3 would have to be 5 or greater, which it isn't. Therefore, R5C3 is NOT SNAKE (green) and now you know that R6C2 IS SNAKE.

@user-kt9vr1wj6y Месяц назад

41:08 for me nice puzzle

@michaelmatter1222 Месяц назад

B-E-Aaaaaaaaaaaaa-utiful! Cheers from 99%Sneaky 🍻

@MelissaW09 Месяц назад

18:03 Simon! Why no follow that logic to its conclusion?! I know the 4 is pretty, but look at all the numbers you are missing by that! ...it took 2 minutes for you to get back there.

@Killrrhubarb Месяц назад

Weirdly, this is also the nickname the ladies gave me 😉

@_-_-Sipita-_-_ Месяц назад

18:00 for me.

@theredstoneengineer6934 Месяц назад

30:38 for me

@psaxton3 Месяц назад

@33:35 bifurcation confirmed.

@jennwinter2243 Месяц назад

Is it a "wurm" or a snake?

@OlafDoschke Месяц назад

RU-vid, what are you doing? They display an ad banner that hides part of the grid for the whole runtime of the video. That's not bearable on a Sudoku solve video. Simon, Mark, this surely has nothing to do with you, it's youtube trying to make ads more effective and maybe rising prices for advertising, but you should ask RU-vid for an option to turn this off. You may not have this as ads are localized and I found a solutoin in toggling to picture-in-picture mode when the ad banner stays in the original window and the freely movable and sizable video window can be fully seen.