"This Is 100% The HARDEST Puzzle I've Ever Seen"

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  • Опубликовано: 20 май 2024
  • ** TODAY'S PUZZLE **
    The quote in the title is from cam, one of the excellent solvers on Logic Masters Germany. It is a daunting sentiment! The puzzle in question is Gouge Away by Math Pesto and we DO understand what Cam is saying. The logic here is surprising and brilliant (and quite hard!)
    Play the puzzle at the link below:
    sudokupad.app/nn9ohqnsnz
    Rules:
    Normal sudoku rules apply. Digits cannot repeat inside a cage. Digits in a white circle must appear at least once each in the four surrounding cells. Digits on a line must have the same sum as the sum of the circles on the line's ends.
    ** NEW SUMGEONS & DIAGRAMS PUZZLE **
    If you enjoyed our recent Dungeons & Diagrams streams then definitely check out the new puzzle by sunnyjum, Sumgeons & Diagrams, which combines D&D and sudoku in a brilliant way. The puzzle can be played completely free over on Patreon (and Simon's solve of the puzzle is available behind the paywall).
    Other treats on Patreon include:
    - the new James Bond sudoku hunt competition;
    - 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...!);
    - and Mark's latest solve of The Times Club Monthly cryptic crossword
    / crackingthecryptic
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    ▶ Contents Of This Video ◀
    0:00 Theme music and puzzle intro
    1:40 New Miracle sudoku & Loop Nurikabe
    2:25 New Snake Egg Sudoku Hunt TOMORROW
    3:04 Happy Birthdays
    6:20 Rules
    8:13 Start of Solve: Let's Get Cracking
    ▶ Contact Us ◀
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    Box 102
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Комментарии • 167

  • @brenthoskisson6979
    @brenthoskisson6979 19 дней назад +74

    I always like Simon solving symmetrical puzzles because he always finds two different ways to solve the puzzle instead of just doing the same thing twice.

  • @HeroOfRhyme
    @HeroOfRhyme 20 дней назад +75

    Thank you so much for mentioning Zelda's birthday! She pointed at the screen when you talked about her (although that might have been by coincidence). I find the tradition of congratulating viewers to their birthdays so charming.

  • @bengrabow3019
    @bengrabow3019 20 дней назад +65

    There's an elegant break-in at the start that uses some SET. Highlight the two L-shaped cages. Those are two sets of 1-9, or 90 total. Remove the four circles in those cages and add the 3-cell lines in boxes 6 and 8 to compensate. Still 90. That leaves only one cell each in box 6 and 8 not highlighted, and the maximum they can be are 4 and 5 since the are in the quad, and the four highlighted cells in box 5 and 9 must equal the total of the un-highlighted cells in 6 and 8. The lowest the highlighted cells can be are 1,3 and 1,4, which equals the 4,5.
    That gives you 1,3 in column 4 of one quad, 1,4 in column 9 of another quad, and the positions of 4/5 vs 2/3 in the 2345 quad. The rest of Simon's logic about where the digits in the circles go flows smoothly from there.

    • @mstmar
      @mstmar 20 дней назад +8

      This was my break in as well. one small typo: when you said boxes 6 and 9, you meant 6 and 8.

    • @chrisgoal
      @chrisgoal 20 дней назад +4

      I did something similar:
      highlight box 6, swap lines for the end circles and compare to L cage going through the box, proving:
      [8,9] + [9,9] = [6,7]
      similarly:
      [4,4] + [5,4] = [6,5]
      then likewise, you needed the values of 1,4,5 and 1,3,4

    • @bengrabow3019
      @bengrabow3019 20 дней назад

      ​@@mstmar thank you, corrected.

    • @monosoloq
      @monosoloq 19 дней назад +6

      And surprisingly, I went to this SET break in almost instantly, by instinct. I am a bit surprised, knowing how much Simon loves using SET, he didn't do it this way. It was quite obvious to me, for some reason i dont know. maybe just lucky.

    • @katiekawaii
      @katiekawaii 19 дней назад

      Clever!

  • @AndrewMooreMar
    @AndrewMooreMar 20 дней назад +125

    Wait, so yesterday's puzzle wasn't the hardest? We've been had!

    • @LukeSumIpsePatremTe
      @LukeSumIpsePatremTe 20 дней назад

      Didn't watch it, but maybe Simon had a slow day yesterday and fast one today.

    • @ElysaraCh
      @ElysaraCh 20 дней назад +27

      every puzzle is the hardest, the best puzzle of the year, the most brilliant puzzle ever made, etc etc etc
      don't read too much into youtube's click-bait meta. hyperbolic video names are a big aspect of big success on this platform.
      it's also in this case a direct quote from the LMD comments that are shown barely a minute into the video, so the clickbait was basically handed to them on a plate

    • @Manigo1743
      @Manigo1743 20 дней назад +4

      Yeah, the hardest puzzle ever will come tomorrow.

    • @michaellee7313
      @michaellee7313 20 дней назад +1

      @@nb2vcxz The puzzle was finished. The aim was to fully shade the grid in a certain way and to draw a path through the grid. Maybe read the rules of the puzzle?

    • @rhodacious
      @rhodacious 20 дней назад +1

      It's like Gregg Wallace saying "cooking doesn't get tougher than this"

  • @AirinTov
    @AirinTov 20 дней назад +35

    Title, the hardest puzzle I've ever seen. Simon "do have a go"
    Love the conference you have in us!

  • @steve470
    @steve470 20 дней назад +22

    34:36 for me. I'd vote for 3 stars difficulty, personally. Really fun puzzle.
    Simon would have made his life easier if he'd
    1) done the same logic on the left L-nonomino that he'd just finished on the right one (the same logic that got him the 1 and 4 around the 458 circle and the 5 around the 2345 circle could immediately be used on the other side to get the 1 and 3 around the 378 circle and the 4 around the 2345), and
    2) left his roping colours in the top three rows, which would have resolved the 10-pair in box 3 much earlier, by noticing that the 1 couldn't go in r3c7 because of the quad clue in box 1.

    • @richbuckingham
      @richbuckingham 20 дней назад +5

      Indeed, Simon missing the obvious symmetry between the two cages resolving the 14 and 13 was really frustrating!!

    • @irrotational
      @irrotational 19 дней назад +1

      Yep - I always love watching his solves but I was willing him on to spot the 1/3 and 1/4 issue and that the logic was identical to the other cage, which I would never have spotted in a million years. Especially funny because 2 mins in he is excited about the symmetry of the puzzle :-)

    • @uigrad
      @uigrad 19 дней назад

      Knowing where the 1-3 go in column 4 is pretty easy using this logic, and would have saved him probably 15 minutes on his solve.
      Like you said, it is the exact same logic that he found with the other 9-cell cage, so I don't see how he didn't notice it applied!

    • @kpaasial
      @kpaasial 19 дней назад +1

      That's very typical for his solves. He almost always refuses to believe that the setter used the same trick more than once and goes to hunt for something else in the puzzle after solving one part of it. It does make his solves quite frustrating to watch because he is also quite sloppy with many of basic sudoku mechanics and doesn't follow a rigorous organized plan in his solves.

  • @dustpan5356
    @dustpan5356 19 дней назад +3

    I’ve seen a couple explanations of set theory, and I’ll add that I think it makes this puzzle much easier (though I’m normally very bad at identifying useful sets!). The 2 9-cell cages are one set, boxes 6 and 8 are the other. Eliminate all overlapping cells, and all lines/circles that have equal sums.

  • @Dysiode
    @Dysiode 20 дней назад +3

    You know it's a tough puzzle when Simon stops talking (I still wish I could find the one with 15 straight minutes of silence)

  • @TheMeanderingduck6
    @TheMeanderingduck6 19 дней назад +2

    Simon: "Diagonal symmetry"
    Also Simon: Not using the logic he used to place the 1/4 in box 9 to do the same thing with the 1/3 in box 5.

  • @All-Ireland-Mahjong
    @All-Ireland-Mahjong 20 дней назад +28

    Gouge Away is the magnificent final track on the altogether magnificent album "Doolittle" from Pixies, released 1989.

    • @David_K_Booth
      @David_K_Booth 20 дней назад +1

      And its subject is the story of Samson and Delilah.

    • @BijickY
      @BijickY 20 дней назад +1

      Thanks for sharing your knowledge!

    • @KrisCadwell
      @KrisCadwell 20 дней назад +1

      I've actually had this song stuck in my head lately.

    • @elLooto
      @elLooto 20 дней назад +1

      And magnificently delivered on the 2004 Toronto gig, showing how the track builds in intensity.
      Always loved playing it live, too.

    • @bobapplebob9695
      @bobapplebob9695 20 дней назад +1

      I love the Pixies, one of my favorite bands as a little kid.

  • @Paolo_De_Leva
    @Paolo_De_Leva 20 дней назад +14

    I have never seen such an intricate and at the same time beautiful *lattice* of geometric restrictions by clueless cages, and I totally understand the reason why *cam* wrote on LMG _"I am extremely confident I followed the intended solving path"._
    This is a *world class masterpiece.* Every step, from start to end, was challenging, but never brutal and always divinely beautiful. Quads were magnificently used as disambiguators.
    How the hell can a human being be smart enough to conceive such a *divine logic creature?* For instance, how can just a bunch of neurons 💪🧠 conceive the multiple stratospherically clever and totally unexpected interactions between elementary restrictions that force
    circle in the UR corner of *box 3* =
    circle in the UR corner of *box 5* =
    just *4* or *5?*
    And that's only the first step in my solve, followed by dozens of equally mind-blowing others‼
    I would love to see a video by Math Pesto about the developement of this apparently superhuman achievement.
    Thank you *Math Pesto.* Thank you *Simon.* 😏👍
    You both deserve a standing ovation
    👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏

    • @Paolo_De_Leva
      @Paolo_De_Leva 20 дней назад +1

      I am also fascinated by the beautiful *mirror-symmetric* arrangement of most of the clues (all of them except for the L-shaped cages and the line in box 5).
      The *quads* aligned along the axis of symmetry look like an *arrow* notched to the bowstring of a fancy professional arch.
      This is a *logic masterpiece* and a *beautiful picture* at the same time 😍👍

    • @sampathkumar-ej7xl
      @sampathkumar-ej7xl 16 дней назад +1

      If you use SETS to compare the 9 digit cages with the BOX6 and BOX8 (all sum to 45) you can determine R6C7 is 5 and R7C6 is 4. You also determine the missing digit is 1 in both the quads 378 and 458,

    • @Paolo_De_Leva
      @Paolo_De_Leva 16 дней назад

      @@sampathkumar-ej7xl Yes, we discussed this in a separate thread started by *bengrabow3019.*

  • @MattYDdraig
    @MattYDdraig 17 дней назад +1

    65:05
    This was brutally, brilliantly, difficult. The instantly obvious roping made it look like it would be a bit simpler, but instead it was quite the grind of logical steps to chip away and this beauty's secrets until the roping appropriately tied up the final loose ends. A masterpiece.

  • @nikh00fdyeah
    @nikh00fdyeah 20 дней назад +13

    "more appropriate to being muttered by a chibbering chimp" 😂😂😂 love it

  • @brianmcadam443
    @brianmcadam443 20 дней назад +7

    33:08 and I echo some of the other comments, this never felt anywhere near the level of difficulty that I was lead to expect from the description. Some tricky scanning with the overlapping ropes, and I suspect if you miss the break-in you could probably go in circles for ages without getting much. Very interested to watch Simon now and see where he might have gotten held up. (quality puzzle tho! Don't get me wrong)

  • @Gonzalo_Garcia_
    @Gonzalo_Garcia_ 20 дней назад +9

    17:43 for me. Fairly approachable once you spot the break-in. I would encourage people to give it a go despite the title of the video, 'cause it's a very enjoyable one to solve. Great puzzle!

    • @SirJefferE
      @SirJefferE 20 дней назад +1

      27:37 for me. Haven't watched Simon's solve yet but I thought it solved beautifully. The clues flowed together perfectly and I never felt lost at any point.

  • @charlesgaskell5899
    @charlesgaskell5899 20 дней назад +3

    At 40:00, 1 and 3 in box 5 are row 4, because they have to be in the cage, but they are outside the cage in boxes 8 and 9. Combine this with the deduction at 41:15 and you can place 1 and 3 and 7 and 8 in box 5

    • @charlesgaskell5899
      @charlesgaskell5899 20 дней назад

      Okay, he got there at 52:15 😀

    • @RichSmith77
      @RichSmith77 20 дней назад +1

      I couldn't understand why he wasn't applying the exact same logic he'd just applied on the other side, with the 1,4 pairs on the line in box 6 having to go in the 9 cell cage in r8-9c9. It's the same logic, just rotated! 😂

  • @kpaasial
    @kpaasial 20 дней назад +3

    At 37:37, isn't there the exact same problem with R7C6 being 3 as was with the other side where R6C7 couldn't be anything other but 5? With R7C6 set to 3, R9C7 would be forced to be a 3 and then there has to be both 1 and 2 on the arrow in box 8 and they would be forced to be a pair in R4R5C4 which is impossible.

  • @MikeyBStyle
    @MikeyBStyle 20 дней назад +6

    So I think I found a slightly easier method with set theory. The 9 cell cage and box 6 are both sets of all 9 digits. Take away the 5 shared in box 6. Then you can get rid of the double arrow. Now you are only left with 1 cell in box 6 which has to be 2, 3, 4, or 5 and the two bottom cells which have to now add up to 2, 3, 4, or 5. Can't add up to 2, and you have two use at least 1 of the quad of 4, 5, and 8 so the only thing you can do is 5 which adds up with 1 and 4. You can do the same with the other 9 cell cage and box 8.

  • @chocolateboy300
    @chocolateboy300 2 дня назад

    I finished in 94 minutes. That break-in was so beautiful. I surprised myself on how I was actually able to see it. The geometry of all at all made it so satisfying. Utilizing the surrounding circles clues in box 9 and 5 to disambiguate the non-caged cells in box 6 and 8 were incredible. I did that part quite fast only to get stuck near the end, but realized that roping became very powerful and easily finished the puzzle. This goes down as one of my favorites. I actually didn't find the difficulty to be that hard. It was hard, but nowhere near the hardest I have ever done. I loved this one. Great Puzzle!

  • @NorkasLP
    @NorkasLP 20 дней назад +5

    Oh, this puzzle was fun. I didm't find it that difficult, but it was very much a different style of difficult. Very intricate and it can absolutely wall you if you don't see some stuff.

  • @AndrewHartshorn
    @AndrewHartshorn 20 дней назад +4

    There was a much easier break in ...... do not read unless you want spoilers
    >
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    Using set on each of the two 9 cell cages against box 8 and box 6 respectively allows you to cancel 5 cells in the cages and cancel the two end cells against the three line cells leaving 1 cell equal in box 6 and 8 vs two cells in the cages. This forces 5 into the NE and 4 into the SW corners of the 2345 quad.

    • @Paolo_De_Leva
      @Paolo_De_Leva 19 дней назад

      Do not worry about spoilers. This video is about solving a puzzle, so the discussion section is supposed to discuss the solve, and suggest alternative ways of solving. This is why I read this section after solving. People who do not want to be spoiled should just ignore the comments.

  • @janeflett4971
    @janeflett4971 3 дня назад

    Brilliant puzzle. The way it revealed what the line in box 7 had to be is one of my favourite sudoku moments ever! ❤

  • @Dodrebur
    @Dodrebur 20 дней назад +2

    I love watching Simon's solves. :)
    There was a simple deduction which should have come when he was placing orange and red in box 8 (20:32): the same rules applied to the 2 cells above orange in the cage.They had to be in that 2x2. When he used that principle to solve the gray/green situation (30:21) and didn't apply the same thing to orange/red when he switched back (34:28), I broke a little lol I had to wait until 52 minutes in.
    Love the video!

  • @LednacekZ
    @LednacekZ 20 дней назад +4

    there is a very easy break in.
    Take the L cage in boxes 5&8 as one group and subtract the box8. Then end subtract the double sided arrow and you end up with R4c4+R5c4=R7c6. Do similar for the other L cage and you get the 2345 positions, and marginal positions of the other circled digits, too.

  • @Jonathan_Corwin
    @Jonathan_Corwin 20 дней назад +13

    I didn't watch yesterdays video (haven't had time!) but if this one is harder, does that mean there were 2 hours of birthday messages in yesterdays?

  • @RealCadde
    @RealCadde 19 дней назад

    11:15 The (16) circle can be useful exactly because you know there's roping.
    It means the row/column that sits outside the (16) clue can't have a 1 or a 6 in it in box 1, which then propagates to boxes 2/3 and 4/7.
    That is, neither 1 or 6 can appear in row 3 of box 3 and column 3 of box 7.
    You also know, however useful that is, that at minimum one of the cages in boxes 1-3 or 1-7 will have a 1 or a 6 in it.
    No matter how you twist and turn it, BOTH cages will never have 1 and 6 in them at the same time. Only one of the cages can have both 1 and 6 in it, the other is then forced to have at least one of the digits.
    Of course it's entirely possible for one cage to have one of 1 or 6 in it and the other cage having neither.
    I don't see how this would get the puzzle started but it's worthy of note.

  • @angec9908
    @angec9908 20 дней назад +9

    I love that Simon put the roping up again and then ignored it when one part was completed.

    • @whatsleep17
      @whatsleep17 20 дней назад +1

      If he had picked the other roping first, the 1-6 limitation was beautiful.

    • @RichSmith77
      @RichSmith77 20 дней назад +3

      At 1:09:35
      "Now 6 has moved into the green rope..."
      Yes...
      (Uses the *light* green rope)
      ...No, the other green!!!

  • @Yttria
    @Yttria 17 дней назад

    This video is proof once again that Simon is a master solver. Much like top mountain climbers pick the challenging routes to the peak that no one else dares try he consistently picks the harder route to a solve that us mere mortals are left in awe of.
    I found the box 6 and box 8 set break in that others have mentioned.

  • @Uristqwerty
    @Uristqwerty 17 дней назад

    Took me a surprisingly-brisk 25 minutes or so. One interesting trick I came across was that regardless of whether the line in box three was 1&9 or 3&7, it resolves the 7&9 in box nine in the same order. In turn, having those digits early made some of the other logic along the bottom rows faster.

  • @whelmking6497
    @whelmking6497 19 дней назад +1

    99:31 for me. Basically two internconnected puzzles (boxes 5,6,8,9 and boxes 1,2,3,4,7). The former solved very quickly but it took me quite a while to resolve the latter. Great puzzle.

  • @volkerysilvia
    @volkerysilvia 14 дней назад

    I'm an avid user of the Vivaldi browser for its unmatched tab handling and memory saving features, and it has just increased my enjoyment of the CTC channel as well. Its page tiling feature makes it a cinch to display the video and the app for solving the puzzle side-by-side on a simple laptop screen, without having to manually adjust window sizes or anything. And when done with the puzzle I just turn the tiling off again. Easy as pie!

  • @anaayoung9142
    @anaayoung9142 20 дней назад +10

    I think that Simon has tunel vision, this must be the reason he can't see some numbers while doing sudoku. He only focus on some box and forget the others. 😂
    But I didn't get it why he didn't do the same logic in boxes 5 and 7 (the logic he used to find 14 pair in column 9, could be used to find 13 pair in column 4) 🤔... but well, he really likes to go to the hardest path!

    • @bobh6728
      @bobh6728 20 дней назад +5

      Simon’s logic included:
      A: This is symmetric around the negative diagonal.
      B: I make some progress in box 3
      C: Therefore, I ignore box 7
      ???

    • @user-bi3vs1kn5f
      @user-bi3vs1kn5f 20 дней назад +3

      It's hilarious actually 🤣 It looks as he absolutely forgets his own logic, that he made before (

  • @emilywilliams3237
    @emilywilliams3237 20 дней назад +2

    Always so interesting, Simon - thank you for this video! I thought about SET myself, (not while solving - I am not going to try this one) because of the layout of the grid. But you followed a great path, I think, and I enjoyed watching it.

    • @davidrattner9
      @davidrattner9 20 дней назад

      Did you end up using SET or solving a different way?

    • @longwaytotipperary
      @longwaytotipperary 20 дней назад +1

      Hi Emily and David 👋🏻. I haven’t watched this yet - it’s been a long day and I’m tired. Just looking through comments and stopped by to say hi.

    • @emilywilliams3237
      @emilywilliams3237 19 дней назад +1

      @@longwaytotipperary Hi, Longway, good to see you!!

    • @emilywilliams3237
      @emilywilliams3237 19 дней назад +1

      @@davidrattner9 I did not try it at all. But perhaps, someday, when I have a spare four or five hours, I will give it a try! 🤣

    • @longwaytotipperary
      @longwaytotipperary 19 дней назад

      @@emilywilliams3237 😁

  • @FrancisFjordCupola
    @FrancisFjordCupola 20 дней назад

    35:50 "If you can see what's going on..." shows Simon's genius. He can make such complicated deductions, but he's always looking out for them as well. Now in box nine there's that 58-pair. That one can be resolved easily. Imagine r8c8 getting the five. Then the red and grey squares would need to add up to five. They can't. There's that 14-pair in the box and r7c7 is either a two or a three. So then red and grey have to add up to eight instead. Three options for that: 17 (eliminated by the 14-pair), 35 (eliminated by the 5 that ends up in r9c8) and thus they must be a 26 pair. Since the red/orange square in r7c6 cannot be either a two or a six, it cannot be red and must become orange. Orange cannot be 3 because of the 378-circle in the center box.

  • @MichaelACromwell
    @MichaelACromwell 20 дней назад +1

    Simon, you missed something fundamental that would have cut a half hour off your solve time. You discovered that R6C4 and R9C7 both must fit into the four squares in Box 8 that are not in the cage, but you failed to realize that R4C4 and R5C4 must also go into those same four squares. In other words, you could have known all four occupants. By so doing, you can immediately detemine which numbers they are due to the circles.

  • @markp7262
    @markp7262 20 дней назад

    53:03 finish. This puzzle was determined to try and break me. First, I kept forgetting that they weren't between lines. Then my computer froze multiple times and ran off about five minutes of my clock (so technically I finished in 45-50 minutes). I finally settled in and pushed through, however, and enjoyed that ending very much. I only colored the ropes that were outside of the 1-6 quad, to save colors and not make it harder to spot the individual ropes. Fun fun fun!

  • @Aldares
    @Aldares 20 дней назад +1

    Solved in 60:04! I have good teachers :). Not the hardest puzzle, but a really nice one!

  • @volkerysilvia
    @volkerysilvia 14 дней назад

    Funny how after talking about all the symmetry at the start Simon proceeds to utterly discard the logic of symmetry while resolving the squiggly lines and the quadruple clues. The 3 in r7c6 could be immediately eliminated with the exact same logic applied to r6c7 - and having the 4 in r7c6 meant that r45c4 was a 13 pair (same as before), and then 1378 could all be placed.

  • @paulgobel6224
    @paulgobel6224 20 дней назад +5

    I just feel the title doesn’t quite match yesterdays video…

  • @tonymanngreenwich
    @tonymanngreenwich 19 дней назад

    What a beautiful puzzle. I needed Simon's break-in but after that I'm quite proud that I managed to do the rest.

  • @piarittersporn
    @piarittersporn 20 дней назад +1

    Brilliant puzzle. Quite difficult at the beginning but not the hardest at all. Anway I could enjoy it without loosing my mind.

  • @davidrattner9
    @davidrattner9 20 дней назад +1

    Another day, another fabulous puzzle with another fabulous solve.!!

  • @PauxloE
    @PauxloE 20 дней назад +1

    This was hard. Nice geometric effects here, and for many it took me quite a while to find them, even though I knew the theory from watching earlier videos.
    At some point, after I had pencilmarked the whole grid, I noticed that the circled 1 in box 1 has an impact on box 7, and then it fell apart.
    102:53 for me (that's slightly under the total video length), solve counter 551.

  • @PathOfShrines
    @PathOfShrines 20 дней назад +1

    Fun puzzle! 41:08

  • @ddimin
    @ddimin 20 дней назад

    67:04 for me. Enjoyed the puzzle. My solving times are often similar to the length of the video, so this puzzle felt like a normal CTC level of difficulty. Definitely not "the hardest puzzle I've ever seen".

  • @ericpraline1302
    @ericpraline1302 20 дней назад

    This one clicked for me pretty quickly, another day perhaps I would have ended up tearing my hair out. Very enjoyable, thanks. Unusually my path was quite different from Simon's, I used a more SET-like approach which I assumed was the intended path, but perhaps Simon's was.

  • @jinkela7295
    @jinkela7295 18 дней назад

    Simon forgets to use the 9-cell Lregion in boxes 5 8 and 9 to confine the 1-3 pair in box 5

  • @cypher686
    @cypher686 20 дней назад +1

    How did you eliminate the possible for a 2 or 3 in box 6 cell 4/5/6? You said that the 5 in box 5 had to be made using 4 and 1 in box six. But couldn’t you have made the five with 2 and 3?

    • @steve470
      @steve470 20 дней назад +1

      Whichever two digits digits add up to that 5, the only place they can go in the L-shaped cage is in the two bottom cells. Those two cells are on a 458 quadruple clue. If you were to use 2 and 3, you'd have to put five different digits (23458) in the bottom-right 2x2.

  • @chadburke1938
    @chadburke1938 20 дней назад +1

    Solved this one in a little over an hour so definitely far from the most difficult on the channel. Was a little bit hesitant to start given the title but broke in fairly quickly.

  • @CauchyIntegralFormula
    @CauchyIntegralFormula 20 дней назад

    38m08s. I feel like I had an early break-in with a cleaner version of the logic Simon used in 26-31 minutes. The four digits of box 6 that are not in the cage are the same as the four digits of that cage that are not in box 6, and so in particular they have the same sum. But the two circles add up to the three digits on the line, and so the remaining digit in box 6, R6C7, must equal the sum of the remaining two digits in the cage, R8C9 and R9C9. But the largest R6C7 can be is 5, and the smallest R8C9 + R9C9 can be is 1+4=5, so each is exactly 5. And then a similar argument puts 4 in R7C6, and you're off to the races

  • @aaronwilk1082
    @aaronwilk1082 20 дней назад

    43:39, today is my birthday and it was a treat better than chocolate cake to spot the SET break-in immediately! 😊

  • @johnnyrobinmorgan
    @johnnyrobinmorgan 20 дней назад

    For those of you who are confused (as I was), the puzzle is NOT symmetrical apart from the kink. The nine cages are oriented differently. This is why thy break in works, and why the logic in the top right does not apply in the bottom left (and vice versa).

  • @iuriikononenko9238
    @iuriikononenko9238 20 дней назад

    For me solution went smoothly after the large box, with horizontal roping. It absolutely magically resolves options in box 3, almost out of nowhere.

  • @tonyawright6020
    @tonyawright6020 16 дней назад

    It really helped me to keep the roping colored even though it doesn't help until later.

  • @YashShandilya28
    @YashShandilya28 19 дней назад

    Sudoku blindness was so real in this one... never ceases to amaze me lol

  • @chironchangnoi
    @chironchangnoi 20 дней назад +4

    Simon: when you find symmetry in a puzzle, and then you find logic, try to apply it to the symmetrical part of the puzzle. Also Simon: doesn't do that in this puzzle.

    • @TheMeanderingduck6
      @TheMeanderingduck6 19 дней назад +3

      RIGHT??? I was shouting "WHY ARE YOU NOT PUTTING THE 1 AND 3 IN BOX 5!?" and then he gets them a totally different way omg

  • @Infinities4
    @Infinities4 20 дней назад +1

    37:09 for me, Phistomefel's are much tougher at times

  • @PassionPopsicle
    @PassionPopsicle 20 дней назад +1

    Early today. Looking forward to dozing off to this (not because Simon is boring, but because his voice is soothing)

  • @thumper8684
    @thumper8684 19 дней назад

    I found the solve pretty smooth. 33:36.

  • @rickwoods5274
    @rickwoods5274 19 дней назад

    For being "the hardest puzzle ever" I somehow managed to do this without help! Used the SET break-in others have mentioned here.

  • @faddy91
    @faddy91 19 дней назад

    Simon would have saved himself a lot of trouble by comparing each 9 cell L shape with the box containing the 5 shared digits.

  • @MAUOMBO
    @MAUOMBO 19 дней назад

    Was there a link to the snake egg video?

  • @LednacekZ
    @LednacekZ 20 дней назад

    1:10:19 today. i had a very complicated start, i missed the obvious break in. then i struggled a lot in the middle and the ending with the triples was easy.

  • @karlmortenlunna2417
    @karlmortenlunna2417 20 дней назад

    22:16 for me. Very nice puzzle!

  • @easternbrown
    @easternbrown 12 дней назад

    I don't think it is as hard as other puzzles on this channel. It's a good geometrical puzzle. The break in is simpler to see if approached by comparing the totals of the nine cell cages and the totals of boxes 6 and 8. And I didn't get too stuck once I'd seen this.

  • @phuybrechts6875
    @phuybrechts6875 20 дней назад

    You could use the 7/9 pair in box 9 , to solve the 3/7 in box 3

  • @Boy314
    @Boy314 19 дней назад

    the timer ticked over 240 minutes today at work while working on it. i found the breakthrough myself which was nice, but i couldn't finish it after that

  • @myverypersonalstuff
    @myverypersonalstuff 20 дней назад +2

    Still love you guys! Sorry for almost never watching, I feel like a faithless spouse - but I have a lot going on in my life. I am working on a tough maths problem that may well become a rather interesting paper. The spirit of patiently chipping away at a problem and rejoicing in occasional Aha-moments was reinforced by my love affair with CtC in the dark moments of lockdown. I haven't forgotten the warm friendship I had from a few very dear co-obsessives. When you see this comment, you will know who you are...

  • @MichaelACromwell
    @MichaelACromwell 20 дней назад +1

    What a fun puzzle!

  • @Cthulhus_Mum
    @Cthulhus_Mum 19 дней назад

    “That’s so annoying it’s not done anything!” - it would have if you’d done it 20 minutes earlier before getting the other stuff the hard way 🙈🙈🙈
    (When you got the first 5, it was instantly “same logic puts 4 on the other side with 1 and 3 above, which fills out the 1378 because two have to add to 9” - which would have made the 869 in that row a lot easier! Impressed that you got it anyway, was almost convinced you’d disambiguate the four digits without noticing the repeated logic at all 🤣🤣🤣)

  • @RichSmith77
    @RichSmith77 19 дней назад

    How can you successfully eliminate 3 as option from one side of a puzzle, with a high degree of symmetry, and not look to see if the same logic can be used to eliminate 3 on the otherside, straight after?
    A 3 in r7c6 forces 1+2 on the arrow in box 8, which could then only go in the domino r4-5c4 in the 9-cell cage running through box 8. This is prevented by the quad in box 5.
    It's the same logic you just used in box 6!

  • @Rach881101
    @Rach881101 20 дней назад

    64:15 for me. Nice puzzle!

  • @arcticcat74
    @arcticcat74 20 дней назад

    Yup, Kitchener Ontario is correct Simon

  • @brettaspivey
    @brettaspivey 20 дней назад +1

    Wow, I thought it was pretty easy, it took me 36 min

  • @WhiterockFTP
    @WhiterockFTP 20 дней назад

    where‘s the link to the old snake egg puzzle?

  • @MrIndomit
    @MrIndomit 18 дней назад

    Fun puzzle. My time is 62:23 and I think this is the first time I have solved faster than Simon!

  • @tonybrooms
    @tonybrooms 20 дней назад

    01:53:59
    I savored the struggle

  • @Ardalambdion
    @Ardalambdion 20 дней назад +1

    I don't understand Simon's mind. He tends to ignore obvious things, like how the digit at r3c7 affects r8c7 while exploring things that are beyond a normal sudoku solver.

  • @EelcoWind
    @EelcoWind 20 дней назад +1

    42 minutes whilst watching news feeds on my 2nd screen. I'm confused about the title 🤔

  • @zachnichols8642
    @zachnichols8642 20 дней назад

    49:33 double nice

  • @bait6652
    @bait6652 19 дней назад

    Like how 2 cells one belong on the line 1 needs to break into smaller sigits

  • @elijahevers2657
    @elijahevers2657 20 дней назад

    32:19 with no help

  • @zachnichols8642
    @zachnichols8642 20 дней назад

    46:45 nice

  • @ivantheczar
    @ivantheczar 19 дней назад

    Much easier compared with yesterday's one

  • @_-_-Sipita-_-_
    @_-_-Sipita-_-_ 19 дней назад

    26:28 for me.

  • @debblez
    @debblez 20 дней назад

    41:00 for me. definitely not the hardest puzzle ive ever solved

  • @adhikol8135
    @adhikol8135 18 дней назад

    one of the more frustrating videos to watch as a viewer I think lol just flip the logic across the diagonal Simon!!

  • @robertcousins2274
    @robertcousins2274 20 дней назад

    61:48 for me

  • @siorge
    @siorge 20 дней назад

    I don't know if the title is ironic. I found it surprisingly simple: 23 minutes 🙂

    • @RichSmith77
      @RichSmith77 20 дней назад

      To be fair, the title is a quote, and he tells us where the quote is taken from in the intro.
      (Is it click-baity? Maybe, but it doesn't bother me like it seems to for some people. I'm already hooked. I'm watching, whatever the title is. 🙂)

  • @jacqueeofalltrades
    @jacqueeofalltrades 20 дней назад

    Was that the end of the birthday catch up? I sent one during the vacation 😢

  • @theredstoneengineer6934
    @theredstoneengineer6934 20 дней назад

    51:39 for me

  • @rajmalkhoiwal1402
    @rajmalkhoiwal1402 19 дней назад

    Not a hardest puzzle..
    We can start with colouring Boxes 5, 6, 8 &9 with total sum as 4x45 and then with different colour of long cages 2x45 and boxes 5 & 9. With that you will find value of cages in box 5 & 9 as 1&3 and 1&4. Rest is simple

  • @jcm86
    @jcm86 20 дней назад

    I actually found this puzzle the easiest in a while. I usually get so stuck in all the easier ones. 😅

  • @six_5000
    @six_5000 20 дней назад

    Yaaay solved in 110:25
    Boooo ads in the pause menu? Ads on the check card? When did we start doing that?

  • @hrbattenfeld
    @hrbattenfeld 20 дней назад +1

    Kind

  • @jonathanhood5514
    @jonathanhood5514 19 дней назад

    Simon has a habit of forgetting logic he just figured out and not applying it to another area of the puzzle where the logic fits perfectly. The logic he figures out to place 1 and 4 in box 9 could have been used to place digits in box 5.

  • @chucksimmons2724
    @chucksimmons2724 19 дней назад

    That didn't seem *that* hard. I was able to solve it.

  • @MatthewLenton
    @MatthewLenton 20 дней назад

  • @Pritchie45
    @Pritchie45 20 дней назад

    31 minutes

  • @stever986
    @stever986 20 дней назад

    3s in the corner are infinitely better when they are unexpected. I would prefer if Simon never pointed out when there might be a three in the corner