Can you solve the seven planets riddle? - Edwin F. Meyer

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  • Опубликовано: 3 ноя 2024

Комментарии • 3,9 тыс.

  • @TEDEd
    @TEDEd  6 лет назад +965

    If you want to practice more problem-solving for free, head to brilliant.org/TedEd/. If you want to signup for a "premium" account, hurry! The first 833 of you to visit that link will receive 20% off the annual premium subscription. Thanks to Brilliant for supporting this video!

  • @cindica1106
    @cindica1106 6 лет назад +775

    Some food for thought. If Harry and Ron were both perfect logicians, they could theoretically continue with that same line of questioning ( "Do you know now?" "No" "Me neither. Do you know now?" over and over again) and they would eventually figure out how many times the other person has seen Titanic, even if its a really high number.
    The logic for it works as follows:
    Since neither of them know the answer from the start (Ron saying "I have no idea" and Harry saying "Me neither") they can both safely assume they've both watched Titanic at least twice. This is because if one of them only saw it once, they would immediately know the other person's seen it more times. However, when Harry asks Ron "Do you know now?", one of two things can happen. Ron could have seen it twice and deduced that Harry must have seen it three times (because they both know they've both seen it at least twice), and Ron says "yes! I know now" OR Ron saw it MORE than twice and answers with "No I still don't know". If Harry responds "Me neither" that means he TOO must have seen it more than twice, and at that point they both know they have both seen Titanic at least three times. This can continue on ad infinitum until the answer is revealed. For example, if Ron saw Titanic... say... 15 times (dear lord), when they reach the point where they both know they have both seen Titanic at least 15 times, Ron will answer with "Yes I do know now!" properly deducing that Harry must have seen it 16 times. All of this said, they could simply just TELL each other how many times they've seen Titanic. But if I saw Titanic 15 times, I wouldn't want to tell anyone either ;p
    If anyone actually read this, wow good job.

    • @satyam6585
      @satyam6585 2 года назад +19

      yes i read it

    • @kihyoungkim6006
      @kihyoungkim6006 Год назад +7

      metoo

    • @Reletr
      @Reletr Год назад +74

      So essentially it's the same logic as the green eyes riddle, where by not doing anything more information is revealed just from the stalling

    • @stoptryingtomakemeusemynam7829
      @stoptryingtomakemeusemynam7829 Год назад +15

      @@Reletr That's what I thought of. The clock on that problem is set by the number of green eyed creatures, whereas this one is just set by the number of times the movie has been seen. I expect that the result would be similar in a riddle involving multiple people having all seen Titanic a unique number of times.

    • @Ajehy
      @Ajehy Год назад +14

      So Ron saw it twice and Harry saw it three times in the provided example, right? Or am I not caffeinated enough this morning?

  • @threej4pope
    @threej4pope 5 лет назад +4469

    Assuming Harry and Ron are perfect logicians, Harry has watched it 4 times, Ron 3. Here's the steps:
    A). Harry asks Ron if he's seen it more. This shows the score isn't H1, R2, because if it were, Harry would realize since he's only seen it once, Ron would have had to see it twice, and wouldn't have texted Ron to ask. Therefore, Harry has seen it at least twice.
    B) Ron says he doesn't know. This shows the score isn't H2, R1, because if it were, Ron would realize since he's only seen it once, Harry would have had to see it twice. Therefore, Ron has to have seen it twice.
    C) Ron also know, that because Harry asked in the first place, Harry *also* must have seen it at least twice (see A). If Ron had seen it exactly twice, that means Harry has watched it three times, and Ron would know the answer. Because he didn't, this means Ron has seen it at least 3 times.
    D) Because (B) and (C), Harry knows Ron has seen it at least 3 times. But he still doesn't know if he's seen it more or not. This means he's seen it more than twice (because he'd know that he'd seen it twice so ron saw it 3 times), and he's seen it more than three times (because he'd know if he saw it three times, then ron had watched it 4 times). Because Harry doesn't know, he's seen it at least 4 times.
    E) Now Ron knows! Because Harry has seen it at least 4 times, and he knows he himself only saw it 3 times, we have a match. Harry 4, Ron 3.

    • @threej4pope
      @threej4pope 5 лет назад +334

      It's also possible for Ron to have 4, and Harry 5, and Ron could have
      deduced that this round as well. So the solution is a bit ambiguous. However, beyond those two outcomes, if Ron had seen more than 4, then there still wasn't enough information and Ron wouldn't have been able to say he'd figured it out when he did.

    • @Susmaster0
      @Susmaster0 5 лет назад +240

      It's not ambiguous, the dude says at the end there are multiple solutions by asking for the sum of the possible times Ron has watched it. So the answer is 7

    • @d4rksol123
      @d4rksol123 5 лет назад +128

      Well ... There is one assumption you are making here. Basically in point A .. you are assuming harry asking ron if he knows who has seen it more times implies harry does not know right away. At this point in time, the answer might indeed be H1, R2 and harry knows that Ron has seen more times, yet still asks Ron if he knows (which he wouldnt since it could very well be H3,R2 for all he knows). This assumption changes the solution quite a bit. If you don't make the assumption that harry asking ron if ron knows implies harry doesn't outright know, then the possible answers are H3, R2 and H4, R3

    • @TheLaw-mh4pb
      @TheLaw-mh4pb 5 лет назад +42

      Ron could have watched it either 3 or 4 times so the answer is 7

    • @luck8719
      @luck8719 5 лет назад +85

      uh
      Ron did 91 times
      Harry did 73 times
      :3

  • @briormoon989
    @briormoon989 3 года назад +2521

    what makes you a eligible detective?
    *I solved a ted ed video before the timer ran out*
    Holy sh-

    • @aryan3229
      @aryan3229 3 года назад +22

      It is true lol

    • @MisterBrick42
      @MisterBrick42 3 года назад +117

      The timer is three seconds Jesus Christ

    • @Yato_q
      @Yato_q 3 года назад +25

      without pausing that is

    • @pisyanggg5473
      @pisyanggg5473 3 года назад +30

      That’s some god tier detective

    • @unico17324
      @unico17324 3 года назад +5

      You're lying!!!!!!!!!!!

  • @snowflakehub6878
    @snowflakehub6878 6 лет назад +2452

    Me: Okay I'm gonna try to solve the riddle this time
    Inner me: You know you want to see that answer

  • @brianjosephmedia1086
    @brianjosephmedia1086 6 лет назад +113

    I paused the video for two days until I finally got it! I was tired of not being able to solve these. These riddle videos are so good been following them for years, I love them! Keep'em up!

    • @edwinmeyer5018
      @edwinmeyer5018 6 лет назад +4

      Congratulations! It takes grit, brains and determination to solve this one.

    • @brianjosephmedia1086
      @brianjosephmedia1086 6 лет назад +5

      I must add that I was not the whole two days fully trying to solve it haha. I took like 1.5 hour each day during work when I didn't have much to do. But yeah, it was hard, it took me quite a few sheets and a pen to trace every pattern.

  • @andypang1677
    @andypang1677 4 года назад +1342

    Tip for the rebels:
    Confirm they have green eyes
    Ask the police if they can leave

    • @Amanda-rn6tw
      @Amanda-rn6tw 4 года назад +16

      Died

    • @supermouse73
      @supermouse73 4 года назад +138

      The police respond ‘Uzu’

    • @beatag1893
      @beatag1893 4 года назад +83

      @@supermouse73 That must mean that one of them is Lying and thus, possesed.

    • @chouts1
      @chouts1 4 года назад +81

      Then the janitor can cross the river with the lion

    • @mr.sniffly5297
      @mr.sniffly5297 4 года назад +33

      @@supermouse73 it’s ulu

  • @ForteGX
    @ForteGX 6 лет назад +232

    This riddle is really cool! I have seen the linear version before where all of the "planets" are aligned in 1 dimension. I haven't seen the split on the third planet before. It is also nice to see that the same line of reasoning works in both cases. The key to note in these types of puzzles is when given that one side MUST do something in a oscillatory fashion, you can take advantage of that. For example, this is applicable in certain chess positions. Surprisingly, the linear case comes down to needing 2(n-2) steps to win, but this branched case also seems to need the same number of steps.

    • @igorjosue8957
      @igorjosue8957 2 года назад +1

      oh yes, the hiding cat puzzle

    • @TehGamesaver
      @TehGamesaver 2 года назад +1

      Second dimension, not third.

  • @calebcustombricks2631
    @calebcustombricks2631 6 лет назад +1539

    Endorra = Endor
    Yavine Fore = Yavin IV
    PinBes = Bespin
    Tattooide = Tatooine
    Dagovah = Dagobah
    Aldoran = Alderaan
    Cashyyyyk - Kashyyyk

  • @draxionsurgeon
    @draxionsurgeon 4 года назад +1734

    Just party on planet 3 until aliens arrive and then invite them over too for a big bang

    • @bijitdas
      @bijitdas 4 года назад +63

      Exactly, they'd come there on the third step anyway

    • @kirkskywalker1701
      @kirkskywalker1701 4 года назад +62

      I assume they wouldn't intentionally run into the planet with the police, so they would hop between the outer two planets.

    • @The360MlgNoscoper
      @The360MlgNoscoper 4 года назад +18

      if they started at 2,4 and 6 the chance for them not to visit 3 ever would be less than 0,01%, and you could just fly away from 3 and return to catch them

    • @akshyun8920
      @akshyun8920 4 года назад +40

      @@The360MlgNoscoper That is, assuming they move randomly

    • @The360MlgNoscoper
      @The360MlgNoscoper 4 года назад +5

      @@akshyun8920 they must move

  • @DA-bm2mj
    @DA-bm2mj 6 лет назад +2728

    Harry: "Hey, Ron! So how many times did you watch Titanic?"
    Ron: "Hey, Harry! I reckon I watched it 127 times. How about you?"
    Harry: "You're a sick sick man, Ron. I watched it only twice. The first time was when it was originally released, and the second time was when it came in 3D."
    Ron: "Oh. Okay. Bye bye then."

    • @eagletgriff
      @eagletgriff 6 лет назад +98

      The amount of hours he lost by watching Titanic..

    • @planktonfun1
      @planktonfun1 6 лет назад +78

      @@eagletgriff in today's technology you can speed up videos. Ron can watch it 127 times in 10 mins.

    • @theovonpapen2355
      @theovonpapen2355 6 лет назад +57

      When you realized that the planets names are a rip off/discounted version of star wars

    • @diyoyoyo13
      @diyoyoyo13 5 лет назад +33

      Dias Amreé
      127?
      _Like NCT 127?!?_
      Sorry I had to
      *I’ll leave now*

    • @sreevallikolli7284
      @sreevallikolli7284 5 лет назад +10

      #ANIMATEona hello fellow nctzen

  • @nicemelbs
    @nicemelbs 6 лет назад +641

    Why are Harry and Ron texting each other? Didn't they live in the same room?

    • @ScottKorin
      @ScottKorin 6 лет назад +88

      How do they have cellphones?

    • @evagregersen9354
      @evagregersen9354 6 лет назад +22

      nicemelbs, and why are they using phones?

    • @NoriMori1992
      @NoriMori1992 6 лет назад +38

      Yeah, they also aren't aliens and don't have cell phones. It's a fictional scenario; just roll with it.

    • @randomanonymous3717
      @randomanonymous3717 6 лет назад +5

      NoriMori they're sorcerer tho they could make themselves like aliens and have phones

    • @IDMYM8
      @IDMYM8 6 лет назад

      IT'S A....... ! ! !
      CANON

  • @mistertwister2000
    @mistertwister2000 4 года назад +597

    “Mom, can I have a list of planets from Star Wars?”
    “We have a list of planets from Star Wars at home”
    The list of planets from Star Wars at home: 0:17

  • @amylu266
    @amylu266 6 лет назад +2378

    One of the planets looks like a marshmallow

    • @DLAppleGamez
      @DLAppleGamez 6 лет назад +18

      Amy Lu yeah four

    • @anonymous-vg7kc
      @anonymous-vg7kc 6 лет назад +52

      Amy Lu yea they r actually candy planets

    • @yinghungman4471
      @yinghungman4471 5 лет назад +8

      @user name yeah its 2 *planet 2*

    • @kentsuhonen7973
      @kentsuhonen7973 5 лет назад +16

      Thats a tasty planet

    • @PRGME7
      @PRGME7 5 лет назад +1

      Amy Lu planet five is just chalos. (Comment "🧀" if you get it)

  • @dimamatat5548
    @dimamatat5548 2 года назад +119

    I want an interactive version of the riddle, playable from both sides

  • @loganreads90
    @loganreads90 5 лет назад +641

    The rebels must not escape!
    *Darth Vader Breathing.*

    • @civilsecuritylite12054
      @civilsecuritylite12054 5 лет назад +12

      The names of the planets are litterally inspired by Star Wars

    • @kino.kylo.kin1
      @kino.kylo.kin1 5 лет назад +2

      Well don't tell that to Solo.

    • @skydude7682
      @skydude7682 4 года назад +3

      Just be careful not to drop out of hyperspace too close to the system or they will raise the shield.

    • @Mmmmmmmmmmmac
      @Mmmmmmmmmmmac 4 года назад +5

      *are we the bad guys?*

    • @Bishtpd
      @Bishtpd 4 года назад +1

      Darth vader Noises

  • @wenzjayy
    @wenzjayy 6 лет назад +711

    cant help but notice the ad-blocker plug-in on the screenshot @5:24

  • @baguettewithcheese3880
    @baguettewithcheese3880 5 лет назад +297

    That last riddle was like math problem solving:
    John and Larry like to play minecraft, there are 76 people on their server but only 40 players have been to space. How many teeth does the crocodile have?

    • @pinballed
      @pinballed 5 лет назад +36

      Easy, 40 is equal to 65 as proven by the amount of letters in seventy six when translated 40 times. crocodile has 10 letters including the space, and 65÷10 equals 6.5. The number for space is 0.5, adding that to 6.5 equals 7, and that's your answer!

    • @joshuabradford8372
      @joshuabradford8372 4 года назад +24

      That’s wrong because John has 4 letters and Larry has 5.
      4 + 5 = 9. Add that to the 76 players to get 85. Subtract the ones that went to space. 85 - 40 = 45
      Finally, the crocodile eats 1/3 of the population making the total 30

    • @rigure
      @rigure 4 года назад +17

      0, Mojang hasn't added crocodiles yet😜

    • @aarongilbertphonetube219
      @aarongilbertphonetube219 4 года назад +10

      @@rigure r/ruinedthejoke

    • @cheez2550
      @cheez2550 4 года назад +6

      green eyes

  • @welcometohell3002
    @welcometohell3002 6 лет назад +479

    who else is just here for the relaxing voice?

  • @Stormtrooper--dx1xj
    @Stormtrooper--dx1xj 6 лет назад +764

    The Star Wars reference is strong with this video

  • @ireallyhavenoidea3788
    @ireallyhavenoidea3788 4 года назад +46

    comment section be like
    70%: star wars
    15%: harry potter
    5%: actually did the riddle/bonus riddle
    other 5%: dem voice so soothing-
    other other 5%: green fly double mouth nose thingy

    • @walkingtowersyndrome
      @walkingtowersyndrome 3 года назад

      1% explaining an easy answer to the riddle/bonus riddle (me)

  • @orenshacham9836
    @orenshacham9836 6 лет назад +207

    Bonus riddle answer - Harry asks Ron whether he had watched titanic more times, therefore he does not know himself. If he had watched it only once, then he would have known. Therefore- Harry watched titanic at least twice.
    Then Ron answers that he does not know. If Ron had watched titanic exactly twice then he would have known that Harry must have watched it 3 times, therefore Ron must have watched it at least 3 times.
    Harry then answers that he still doesn't know. If harry had watched it exactly 3 times, then he would have known that Ron must have watched it 4 times, and so he watched it at least 4 times.
    Ron then says that he does know whether he watched more times or not. That can only be the case if he watched it 3 times or 4 times, because then he would know that harry must have watched it 4 or 5 times respectively. So Ron must have watched titanic either 3 or 4 times, so their sum is 7.

    • @bobdigital21
      @bobdigital21 6 лет назад +19

      Then this look would keep going until they hit over 100 times. Each would just keep saying "I don't know, do you know now?" "No, I don't. Do you know now?" Each time ups the number for each.

    • @winifredfay9229
      @winifredfay9229 6 лет назад +21

      The logic is correct, but I think the website messed up and didn’t count Harry’s first question as an “I don’t know” for Harry, so the ‘actual’ answer is 5 (2+3 rather than 3+4), seeing as there is one less “I don’t know” moment.

    • @clancyoshannessy9623
      @clancyoshannessy9623 6 лет назад +17

      It is possible to ask if someone else knows something you already know, so harry's first question gives no information to Ron and the answer is 5

    • @TheCart54321
      @TheCart54321 6 лет назад +4

      😓😓😓😓😓😓😓😓😓😓😓😓😓😓

    • @kaylapua9822
      @kaylapua9822 6 лет назад +10

      oren shacham I understand the logic behind, it yet wouldn’t this riddle be slightly misleading if the audience was not aware whether both Ron and Harry were aware of the minimum possible number of times the other watched the movie? The riddle is plausible but, to me, it seems slightly illogical.

  • @brostrod
    @brostrod 4 года назад +127

    If harry and Ron are smart, then the answer is
    JUST TEXT THE NUMBERS TO EACH OTHER

  • @riatortilla9906
    @riatortilla9906 5 лет назад +1604

    “Your friends harry, ron, and hermione”
    **sounds of harry potter fans screaming intensifies**

  • @santoshparab5050
    @santoshparab5050 6 лет назад +573

    Did anyone notice its the names of planets from star wars but wrong spelling

    • @fulcrum2951
      @fulcrum2951 6 лет назад +3

      Aditya Parab love it!

    • @flyingpenandpaper6119
      @flyingpenandpaper6119 6 лет назад +9

      Duh

    • @TheMichellePhan
      @TheMichellePhan 6 лет назад +3

      its because of copyright

    • @TheRedHotSpot
      @TheRedHotSpot 6 лет назад +7

      No, and because of that you are a literal genius. Congratulations.

    • @miabua73
      @miabua73 6 лет назад +2

      Interesting. Don't know much about the Star Wars universe, but I I knew I regonized some of 'em.

  • @matteomagnini4614
    @matteomagnini4614 6 лет назад +5

    A friend of mine told me about this question last night, I found a similar solution but in my case the police car doesn't need to move more than one planet per hour (instead it stays on the same planet for two hours, basicaly it's the same trick): 2-3-4-3-6-6-3-2-3-4. This remind me chess. For example in an end-game of king and rook against king it's well known that to achieve checkmate you have to do a sort of "opposition" with kings and then push the rook in the same row/column of the opponent's king. To allow it, if the kings are not "synchronized", you need to loose a tempo by moving your rook. This is the same idea of loosing a tempo to "synchronize" cars by mooving of two planets or by staying on the same planet. Very interesting, thanks!

  • @Mihau_desu
    @Mihau_desu 5 лет назад +18

    The answer is 5
    A) Harry asks Ron. It means H > 1 he wouldn't ask elsewhere.
    B) Ron doesn't know. It means
    R > 1. If it was he would've known.
    C) Harry still doesn't know. Therefore H > 2.
    D) Ron knows already. It means
    R < 4. If he watched it 3 times Harry watched 4 and if he watched twice Harry watched 3 times. If Ron watched Titanic 4 times, he wouldn't know if Harry did it 5 times.
    E) if Ron already knows the answer R < H. Otherwise Ron wouldn't know yet.
    And if H = 3 -> R = 2
    If H = 4 -> R = 3
    If H = 5 or more -> R doesn't know yet
    If H = 2 or less -> H would've already known before then.
    F) Left possibilities are R = 2 or 3
    Sum of which is 5

    • @akshaydamle95
      @akshaydamle95 5 лет назад +2

      If R = 2, H can be 1 or 3
      If H = 1, Harry would've not asked the first question. So Ron would know that H = 3 and he wouldn't reply by saying "No idea!"
      So I believe R = 2 should not be a possible solution. Correct me if I'm wrong though.

    • @Mihau_desu
      @Mihau_desu 5 лет назад

      @@akshaydamle95 I also thought about it, but If Harry knows how many times he watched titanic, which we assume: he does.
      He should follow the same logic ( at least to some point ) as I did. Therefore if he knew possible answers are R=2 or R=3, he would immediately know the answer
      If H=3, then R=2
      If H=4, then R=3
      Because he didn't know the answer we have to assume he couldn't follow the Ron's logic.
      In conclusion: because Harry didn't know whether R=2 or 3, we can't know either.
      But I'm glad you asked.

  • @nayomisantos748
    @nayomisantos748 6 лет назад +6

    Please make more riddles more often!! Thank you!!😊 BTW I love your videos and I am inspired by them. Thanks you all for being amazing.

  • @americantoastman7296
    @americantoastman7296 4 года назад +72

    This riddle was super ambigous. They never explained whether the rebels and we move at the same time or after one another and even in the explanation video it jumped back and forth between the two scenraios. That makes it so much harder to solve since you have no idea which ruleset is the correct one.

  • @dakota2412
    @dakota2412 Год назад +23

    The true bonus riddle is how and why does hermone know how many times Ron and Harry have seen Titanic

  • @SciencewithKatie
    @SciencewithKatie 6 лет назад +791

    Oh my gosh yay! I love these riddle videos 🙋🏻

  • @ContinualImprovement
    @ContinualImprovement 6 лет назад +706

    No, but can you solve this riddle?
    “What goes up that must come down?”
    My self esteem 😭

    • @prithusharma2559
      @prithusharma2559 6 лет назад +1

      LMAO

    • @riksen1518
      @riksen1518 6 лет назад +44

      Maybe it never went up in the first place

    • @FRISHR
      @FRISHR 6 лет назад +22

      My morning wood.

    • @Mikimaki7267
      @Mikimaki7267 6 лет назад

      I️ thought that before pressing read more!

    • @zenn8728
      @zenn8728 6 лет назад

      +FRISHR ? I don't get it

  • @Kamadogenya
    @Kamadogenya 4 года назад +26

    Ted Ed: Apprehend the group of rebels
    Me: I dont work for the empire

  • @TXLionHeart
    @TXLionHeart 6 лет назад +737

    Why can't they just wait for them on planet #3?

    • @harrywang2795
      @harrywang2795 6 лет назад +202

      They can bounce between 1 and 2

    • @notfortune598
      @notfortune598 6 лет назад +116

      That could work realistically but we are looking for a method that works 100% of the time

    • @TXLionHeart
      @TXLionHeart 6 лет назад +81

      Why in God's name would they bounce back and forth between 1 & 2? Nobody tries to avoid the cops by alternating between two locations...

    • @joi1794
      @joi1794 6 лет назад +72

      "Why in God's name would they bounce back and forth between 1 & 2?"
      You said "Why can't they just wait for them on planet #3?" and 1 is only connected to 2 and 2 is connected to 1 and 3. when you just stay put in 3 they only have the option of 1 and 2 as saying like you did... Why in God's name would they go to the planet where the police waits for them?

    • @TXLionHeart
      @TXLionHeart 6 лет назад +47

      The riddle implied that the criminals would not know which planet you were on since you "warped" there.

  • @kumarshumar
    @kumarshumar 6 лет назад +410

    Time to watch another video to make yourself feel that you've gotten smarter, but we all know the reality.

    • @Yamyatos
      @Yamyatos 6 лет назад +5

      Time to continue writing my bachelor thesis then.

    • @Coolsalami
      @Coolsalami 6 лет назад +1

      “More Smarter” 🤨

    • @kumarshumar
      @kumarshumar 6 лет назад +3

      Henry Zeigerson I just noticed, tysm!

    • @Coolsalami
      @Coolsalami 6 лет назад +1

      Ayush Kumar lol

    • @grannit9582
      @grannit9582 6 лет назад +1

      Ayush Kumar ha ha ha🤣

  • @CecilleCK63
    @CecilleCK63 2 года назад +9

    Our school used this for their Math Olympiad. This helped a lot!

  • @brendangolledge8312
    @brendangolledge8312 5 лет назад +13

    I solved it, but it is hard to explain the whole method without a picture. The key that makes it possible is to realize that for any given start position, all the other positions can only be accessed either on an even turn or an odd turn. There are only two possible pictures of even/odd positions, depending on their start position. You assume one picture first, and alternatingly check each arm at the appropriate even/odd spot, and then the middle again to check that they didn't move to a different arm. If you don't find them after 5 moves (checking each arm once and the middle twice), your initial assumption was wrong, and you must use the other map of the even/odd positions and check again for 5 more moves in the same way.

  • @galaxyblade9597
    @galaxyblade9597 5 лет назад +182

    does no-one notice the rules at 1:08 go 1,2,3,5,6?
    WHERE IS 4!!!

    • @Qalorenz
      @Qalorenz 5 лет назад +6

      Pranked

    • @FlyingDominion
      @FlyingDominion 5 лет назад +15

      It's on Yavine Fore.

    • @cobcorn8749
      @cobcorn8749 5 лет назад +16

      No one noticed that because no one reads the rules again, they just want to see the answer

    • @cobcorn8749
      @cobcorn8749 5 лет назад +7

      Good eye tho

    • @galaxyblade9597
      @galaxyblade9597 5 лет назад

      thx@@cobcorn8749

  • @Glydal
    @Glydal Год назад +1

    I want to clarify a few things for everyone who doesn't understand (as there are quite a few comments demonstrating some confusion):
    1.) The layout of the planets is as shown in the video. There is no need for TED-Ed to explicitly state that the planets are in that layout as we are introduced to the planets by being shown that specific layout at 0:16 and are given no other possibilities. If the layout of the planets could be different, the video would have mentioned something along the lines of, "Let's assume the planets are in this configuration" or, "If the planets are in this configuration, we can use this method." It says neither, and just introduces the planets in the Y formation and never changes it. Therefore, there is no possibility of the planets in another formation.
    2.) The warp feature simply allows the Police Cruiser to move between any two planets without them needing to be adjacent. The Rebel Beat-Up Smuggling Ship can only move between adjacent planets (see 0:34 to 0:45). Travel time between planets, regardless of how far apart they are, will take the same amount of time for both ships. (Yes, this is at odds with real-world physics. But treat it more like moving a game piece to a new spot as opposed to driving a car or flying a plane - as the video clearly intends.) Ultimately, each ship can move to a new planet each hour, or turn, only once because of the recharge time.
    3.) The two ships cannot and will not meet during their jumps between planets. This is indicated in Rule #2 (1:08) which says, "Every hour, you MAY warp to any of the seven planets to search for the rebels there." Note the final word "there". This implies that the searching is *on* the planet not between planets. (Regardless, this point is absolutely demonstrated in the solution at point 4:13 to 4:15 when the Police move from Planet 3 to Planet 4 and the Rebels move from Planet 4 to Planet 3. If the Rebels could be found mid-flight, this move would not be possible.)
    4.) Rule #3 (1:08) says, "Starting after your first search, the rebels MUST move every hour to a planet adjacent to their current location. They will not stay still." This very plainly states - along with the lines at 0:45 to 0:51 - that the rebels do not like to stay put and that they will relocate when they can. The only stipulation put on whether or not the rebels can relocate is the recharge time on their ship. The Rebels would never choose to stay put when they have the option to move. (Furthermore, this practically demonstrates that the Rebels do not know which planet the Police are on just as the Police do not know which planet the Rebels are on. If the Rebels knew, or could see, which planet the Police were on, they would either move in a different direction or just stay put. Since they do not have this information, they keep moving at every chance they get.)
    5.) The "game", so to speak, began when the Rebels used their "turn" to pick a planet. Your turn begins with you choosing a planet to search. The hour it takes for the warp/jump features to recharge on the ships is the allotted search time. That is the end of turn 1 out of 10. Once the recharge/search hour is up, both players have another turn and can move again. The moves are made simultaneously, as both would move to a new planet as soon as possible, and a new search begins. End of turn 2 out of 10. Once that next hour is up, it is the start of another turn. This means that the Rebels cannot be on a planet you move to and then move while you are searching it but before you find them. Again, assume that this is like moving a game piece to a new space. Once both move, the search begins. If your move lands you on the same space that the Rebels are on, you find and capture them.
    6.) Another note on Rule #2 (1:08), "Every hour, you MAY warp to any of the seven planets to search for the rebels there." You MAY move. This means that *you* may choose to stay put and see if the Rebels come to you. It is a valid strategy and one that MAY work in some scenarios. But you are not looking for a solution that works in *some* scenarios. Rule #6 (1:08), "Your sequence must be capable of finding the rebels in every possible scenario." If there is any way that the Rebels can escape when using a certain search option, that option is not a valid solution to the puzzle. (You can test your solution by playing as the Rebels and attempting to avoid the Police, who are searching according to your proposed solution. If you can escape, the solution fails. If you can't, it succeeds.) Your goal is to guarantee that you will catch the Rebels in 10 moves or less. without needing to know which planet they started on. If your solution allows for any escape, it cannot be trusted.
    7.) It is possible the Rebels may decide to simply jump between 2 planets. As you do not know which planet they started on, simply staying on 1 planet in this scenario would never work unless you got lucky and chose either the planet they started on or the planet they move to second. And, as mentioned above, this solution is invalid as it does not guarantee success.
    There are a lot of riddles in the world that require you to have some bit of information that has not been given in the set-up and that you could not have known previously. These types of riddles are designed to be unsolvable and allow the "riddle" teller to laugh at you. This riddle is not one of those. It gives all the required information and the solution presented does not assume or use things that you are unaware of. It may require a bit of "outside the box" thinking, but that is what it and Brilliant is trying to teach you to do with these puzzles.
    Have I solved every TED-Ed riddle? No, of course not. But as far as I can remember, the ones I did not solve, and the logic behind them, were easy to understand once the solution was presented. In the end, if you think logically and are willing to work through the problem at hand, it can be solved. And, you might just learn something along the way.

  • @granthtiwari2524
    @granthtiwari2524 6 лет назад +204

    Did u realise all planets r names of Star wars planets/moons with the wrong spelling.
    Endor
    Yavin 4
    Bespin(on which cloud city is)
    Tatooine
    Dagobah
    Alderaan
    Kashyyyk

  • @asclepihex
    @asclepihex 6 лет назад +738

    Doctor: you have 6 minutes to live
    Me: *watches video*

  • @mr_niceman
    @mr_niceman 5 лет назад +64

    Here’s the solution if someone’s looking:
    If someone had watched Titanic only once, then that person would know the answer immediately. Since both Harry and Ron did not know the answer initially, both must have watched it at least twice.
    Let us assume that Ron watched Titanic twice, and analyze the conversation in Ron's perspective. Ron knows that Harry watched Titanic either once or thrice. Thus initially Ron would not know if he watched Titanic more than Harry did. However, Harry said "me neither", which implies that Harry did not watch Titanic once. Hence Harry must have watched Titanic three times, which Ron now knows with certainty. So, Ron could reply "yes, indeed!".
    This time suppose that Ron watched Titanic three times. Then Ron knows that Harry watched Titanic either twice or four times. Again, Ron would not know if he watched Titanic more than Harry did. Now, assume that Harry watched Titanic two times. Then Harry initially knows that Ron watched Titanic either once or thrice. After listening to Ron's answer "I have no idea", Harry would then know that Ron had watched it three times. However, as Harry replied "me neither", Harry could not have watched Titanic two times. Therefore Ron knows that Harry watched Titanic four times.
    Next, assume that Ron watched Titanic four times. Initially Ron knows that Harry watched it either three times or five times. At this point Ron does not know if he watched Titanic more than Harry did. Now, let's say that Harry watched Titanic three times. Then Harry initially knows that Ron watched Titanic either two times or four times. In both cases, Ron would not know if he had watched it more times than Harry; thus Ron's reply "I have no idea" does not yet give additional information to Harry. Thus Harry replies "me neither". Ron also knows that Harry would not know the answer yet, whether Harry had watched Titanic three times or five times. Hence Ron also does not know the answer at this point, and therefore Ron wouldn't have replied "yes, indeed!". Therefore Ron did not watch Titanic four times.
    In a similar manner, if Ron had watched Titanic more than four times, then it would require a longer conversation for Ron and Harry to figure out the answer.
    In conclusion, Ron could have watched Titanic either 2 or 3 times.

    • @matsthecat3401
      @matsthecat3401 5 лет назад

      Wow biiiigg

    • @abhinavranaut915
      @abhinavranaut915 5 лет назад +3

      Answer is either 3or 4 times

    • @mr_niceman
      @mr_niceman 5 лет назад +10

      Abhinav Ranaut bro I didn’t write this, this is the legit answer on the web lol

    • @tramquangpho
      @tramquangpho 4 года назад

      .

    • @swapnilkashyap1336
      @swapnilkashyap1336 4 года назад +2

      Mr. Nice Man the answers can not be 2 times because both have them have to have watched the movie at least two time to start the conversation. If somebody has watched the movie only once, he would then only know he has watched it less times and would not initiate the conversation ( comes with the condition nobody has watched it zero times as i believe hermoine )

  • @kumarshumar
    @kumarshumar 6 лет назад +55

    I haven't watched it, but I'm sure that I won't be able to do this as well.

  • @theresafushiguro3107
    @theresafushiguro3107 6 лет назад +114

    TED EEDDD! I LOVE YOU♥

  • @LutereFausto
    @LutereFausto 4 года назад +17

    Bonus riddle:
    Harry has watched it 4-5 times and Ron 3-4. Both results work.
    Ron and Harry are learning new information with each text, we just have to summarize it.
    1: Harry and Ron know that they have watched the movie at least once, so, since Harry asks Ron if he has seen the movie more times than him, we know that Harry has seen it 2 or more times.
    2: Since Ron doesn't know the answer, we now know that he hasn't seen it 2 times, but 3 or more, thanks to the new info adquired.
    3: Harry answers that he (still) doesn't know either, so he has watched it 4 or more times.
    4: Now Ron says that he knows, so he has watched it 3 or 4 times.
    Both work since we know that Harry has seen it 4+ times, so if Ron knows the answer now, he must have seen it 3 times (and Harry 4 since it's the minimum) or 4 times (and Harry 5, since it can't be the same number).
    Ron's number can't be 5, because knowing that Harry has watched it 4+ times, he could have seen it 4 or 6 times, so Ron can't be sure about his number being higher.

  • @atimholt
    @atimholt 4 года назад +10

    I can do it in 6 visits. Imagine starting at the center. If that's where they were, you're done. If not, hop to one of the outermost planets.
    If you happen to hop to the outermost planet on the *correct* arm, you've either just caught them or forced them to hop to the center planet, and you'll catch them on your return.
    But if you jumped to the outermost planet on one of the two *incorrect* arms, they'll either hop to the center (you'll catch them on your return), or to an outer planet. They cannot at any point leave that arm, so you'll catch them when you reach that arm (or on the hop back to the center afterward).
    You'll notice that this method requires 7 moves. To get it down to 6, just skip the first visit to the center, it's superfluous. All it would accomplish would be to keep them from switching from one arm you haven't even checked yet to the other arm you haven't checked yet.

    • @PowerStar004
      @PowerStar004 4 года назад +5

      The rebels are not caught on their own turn. If the rebels move to the planet you just searched, they aren't caught unless you choose to search that planet again.
      Example: You search planet 7. The rebels are actually on planet 6, so you don't find them.
      Rebel's turn. They move to planet 7.
      Your turn. If you search 7 again, the rebels are caught, but ONLY if you search 7 again.

  • @spi3250
    @spi3250 6 лет назад +86

    Lol I always thought the purple guy's nose was his eyes
    Now I look above him and those eyes are his eyes
    MY LIFE WAS A LIE

  • @TheRaymundmarasigan
    @TheRaymundmarasigan 11 месяцев назад +1

    I love that almost every bridge, or raft, get to the other side riddle, they all wave on the other side.

  • @bagasirwansyah143
    @bagasirwansyah143 6 лет назад +64

    I have always have fun on teded videos, but not this one, I hate the fact that the bonus riddle is not answered, I visit the ads, but it make me signing up, but after signing up? It told me to be premium member. duh.

    • @Themi.
      @Themi. 6 лет назад +4

      Bagas Irwansyah
      I followed the link and it worked without signing up for premium. If you want to know the answer, look at the end of this comment.
      5

    • @bagasirwansyah143
      @bagasirwansyah143 6 лет назад

      gnampf1234 Thank you very much

    • @Peace_Guard
      @Peace_Guard 6 лет назад

      That answer is wrong, it's 3.

    • @Themi.
      @Themi. 6 лет назад +3

      Peace Guard
      5 is the correct answer and also the answer on Brilliant.
      There are two different possibilities, Ron could have seen the movie either 2 or 3 times. It has already been explained multiple times, but in short:
      Ron isn't sure wether he saw it more often, so he must have seen it at least 2 times.
      Harry knows that and isn't sure neither, so he must have seen it at least 3 times.
      Now Ron knows, which means he either saw it 2 times and Harry 3 or 3 times and Harry 4. Thus, the answer is 2+3=5.

    • @agent47akhil
      @agent47akhil 6 лет назад +2

      gnampf1234 I don't think Ron could have seen the movie 2 times.
      Suppose Ron saw the movie 2 times, that implies Harry saw it 1 or 3 time(s).
      Case 1: If Harry saw it only once, he wouldn't have bothered asking the first question, since he already knows Ron has seen it 2 times (0 is not possible).
      Case 2: If Harry saw it 3 times, he would ask Ron first question since he is not sure if Ron watched it 2/4 times. Now if Ron had watched it only twice, he would know Harry watched it 3 times exactly, since the other option (Harry watched only once) means Harry wouldn't have asked the question in the first place. So Ron would be able to answer as soon as Harry asks the first question.

  • @harshkantbhatnagar360
    @harshkantbhatnagar360 6 лет назад +33

    Another riddle I can't solve.!

  • @Owen-gq6fg
    @Owen-gq6fg 6 месяцев назад +1

    For everyone who thought staying on planet 3 was fine, they could just keep alternating between 2 planets on the outside, meaning you'll never catch them, etc. 7-6 x5, 5-4 x5, or 1-2 x 5, or vice versa, with starting on even numbers instead of odd

  • @nolmaoo
    @nolmaoo 4 года назад +5

    Ted-d spends more time on the scenario then the riddle itself
    Change my mind

  • @rosevalor1970
    @rosevalor1970 2 года назад +3

    TED-ed: can you solve the seven planets riddle?
    Me: ozo

  • @kasperweijsters9053
    @kasperweijsters9053 5 лет назад +6

    The space bandit riddle could be solved way easier if you start at planet 3 and go to planet 2 after that. After that you complete the first sequence because the bandits have to be at an even after the first turn. So it will only take you 6 warps in stead of 10.

    • @colgatelampinen2501
      @colgatelampinen2501 Год назад +2

      It is waste of turn and makes it take 11 turns. 1 and 3 are neighbours of 2, 2 is neighbour of 1, 4 is neighbour of 5, 5 is neighbour of 4, 6 is neighbour of 7 and 7 is neighbour of 6. They could be on any planet.

    • @yoppyyoppy6794
      @yoppyyoppy6794 Год назад

      If you start at planet 3, the bandits could've started on any even planet and would now be on an odd numbered planet. Starting at three wastes a turn

  • @quietartist5082
    @quietartist5082 6 лет назад +40

    Planet 2 looks tasty 😋

    • @brittgroenewegen654
      @brittgroenewegen654 6 лет назад +4

      Planet 4 looks like a half burnt marshmallow

    • @quietartist5082
      @quietartist5082 6 лет назад +3

      Britt Groenewegen yeah it does lol

    • @rickdoggr
      @rickdoggr 6 лет назад

      Julia Budziejewska (Eats planet two and four)

  • @joryjones6808
    @joryjones6808 6 лет назад +4

    This video was a lot smarter then I thought it would be, It was quite more challenging then I thought too, maybe I’ll show it to my math teacher.

    • @edwinmeyer5018
      @edwinmeyer5018 6 лет назад

      Good idea! Let me know what she/he says.

  • @belgiffle2260
    @belgiffle2260 5 лет назад +148

    But the real riddle Ted ed want us to solve is:
    *is that green fly alien girl's mouth or nose?*

  • @illiacvie
    @illiacvie 6 лет назад +23

    Some instruction are unclear. Because i think the rebel and police are move in same time.
    It means when police in planet 2, and go to planet 1, rebel can go undetected from planet 1 to planet 2.
    Nice riddle tho.

    • @Themi.
      @Themi. 6 лет назад +4

      yes, that's true. But the answer covers this case.

  • @devanshi3400
    @devanshi3400 4 года назад +27

    i love how the planets are named after star war planets lol

  • @mliu8120
    @mliu8120 2 года назад

    All these riddles are so good

  • @sidthevar2679
    @sidthevar2679 6 лет назад +315

    electronic gadgets such as phones dont work in Hogwarts.......riddle is a LIE!!!!!!

    • @luigiboy72
      @luigiboy72 5 лет назад +10

      Who said it has to be in Hogwarts? It could be in their homes

    • @TechyRanger
      @TechyRanger 5 лет назад +18

      “iTs iN hOGwArTS A hIstORy” commented Hermione

    • @rallozarx4215
      @rallozarx4215 5 лет назад +1

      What about Colin Creevey's camera?

    • @GP-qo6yz
      @GP-qo6yz 5 лет назад +3

      I don't think they are at Hogwarts if they were why wouldn't they just talk

    • @xio56mg32
      @xio56mg32 5 лет назад +2

      Ron is a wizard and wizards dont use TV.

  • @krselj
    @krselj 6 лет назад +314

    Can someone post the answer to the second riddle?

    • @tomasgomes8793
      @tomasgomes8793 6 лет назад +733

      If someone had watched Titanic only once, then that person would know the answer immediately. Since both Harry and Ron did not know the answer initially, both must have watched it at least twice.
      Let us assume that Ron watched Titanic twice, and analyze the conversation in Ron's perspective. Ron knows that Harry watched Titanic either once or thrice. Thus initially Ron would not know if he watched Titanic more than Harry did. However, Harry said "me neither", which implies that Harry did not watch Titanic once. Hence Harry must have watched Titanic three times, which Ron now knows with certainty. So, Ron could reply "yes, indeed!".
      This time suppose that Ron watched Titanic three times. Then Ron knows that Harry watched Titanic either twice or four times. Again, Ron would not know if he watched Titanic more than Harry did. Now, assume that Harry watched Titanic two times. Then Harry initially knows that Ron watched Titanic either once or thrice. After listening to Ron's answer "I have no idea", Harry would then know that Ron had watched it three times. However, as Harry replied "me neither", Harry could not have watched Titanic two times. Therefore Ron knows that Harry watched Titanic four times.
      Next, assume that Ron watched Titanic four times. Initially Ron knows that Harry watched it either three times or five times. At this point Ron does not know if he watched Titanic more than Harry did. Now, let's say that Harry watched Titanic three times. Then Harry initially knows that Ron watched Titanic either two times or four times. In both cases, Ron would not know if he had watched it more times than Harry; thus Ron's reply "I have no idea" does not yet give additional information to Harry. Thus Harry replies "me neither". Ron also knows that Harry would not know the answer yet, whether Harry had watched Titanic three times or five times. Hence Ron also does not know the answer at this point, and therefore Ron wouldn't have replied "yes, indeed!". Therefore Ron did not watch Titanic four times.
      In a similar manner, if Ron had watched Titanic more than four times, then it would require a longer conversation for Ron and Harry to figure out the answer.
      In conclusion, Ron could have watched Titanic either 2 or 3 times. Therefore our answer is 2+3=5

    • @pandatning
      @pandatning 6 лет назад +128

      wow

    • @krselj
      @krselj 6 лет назад +165

      Thank you for the answer. I honestly still dont get it but it is obvious that the second riddle is much harder than the first. I dont really get why does harry saying me neither imply that he didnt saw it only once?

    • @krselj
      @krselj 6 лет назад +35

      Also who is to say that someone didnt watch Titanic zero times and the other one time

    • @tomasgomes8793
      @tomasgomes8793 6 лет назад +43

      Well, if Harry had only watched it once, he would know Ron had watched it twice (you're supposed to assume that 1 is the least times each of them may have watched the movie).

  • @jackjorgensen1440
    @jackjorgensen1440 4 года назад +30

    0:17 Ted-Ed, listen to me.
    Did you just rip off 7 Star Wars planets!?

    • @koopatroopa7968
      @koopatroopa7968 4 года назад

      We both have names that are from video games =|

  • @zatoth13
    @zatoth13 4 года назад +52

    Both Harry and Ron have seen Titanic many more times than me because I did not watch it...

  • @Pomodorosan
    @Pomodorosan Год назад +3

    0:17 very long pause -- 1:07 barely any time to read -- 1:23 loud volume change -- 4:29 very loud volume change

  • @grandmasteryoda7102
    @grandmasteryoda7102 4 года назад +1

    STAR WARS REFERENCE!!!!!! :D :D :D 0:19 this makes me very happy because I love Star Wars. Thank you Ted-Ed for making me very happy

  • @TK422
    @TK422 3 года назад +3

    This galaxy sounds very familiar. In my galaxy we have
    1-Endor
    2-Yavin IV
    3-Bespin
    4-Tatooine
    5-Dagobah
    6-well... we used to have Alderaan
    7 and Kashyyyk

  • @x3ICEx
    @x3ICEx 6 лет назад +46

    Solution linked is *behind registration wall*, so no thanks. I was promised a link "straight to the" answer.
    "Your answer seems reasonable. Find out if you're right! [email/facebook/google+...]" Again, no thanks.

    • @frankmalenfant2828
      @frankmalenfant2828 6 лет назад +6

      The answer was posted by Julia Chang one month before. Search for it in the comments.
      Harry : Did you watch Titanic more than I did?
      Ron : I have no idea!
      This blurb tells us three things:
      1. Each must have watched the Titanic at least two times, otherwise one of them would have known definitely who watched more than the other. So somewhere there has to be a 2 to 3 ratio (one more than the other). That is the new status quo.
      2. If Ron watched Titanic twice, he knows Harry must have watched Titanic three times and so game over. But Ron says he has no idea, so Ron must've watched it at least three times, as he does not know how many times Harry watched it.
      3. Based off of number 2, if Ron watched Titanic at least three times, then Harry must either have watched Titanic two times or four times.
      Harry : Me neither. Do you know now?
      4. So Harry doesn't know either. If Ron had watched Titanic at least three times and Harry himself knows he watched it only twice, then he would respond, "Oh, I know." But he doesn't know either, so Harry must have watched the Titanic at least four times.
      Ron : "Yes, indeed!"
      5. Ok, so Ron gets the logic said above, and so he knows he has watched Titanic three times while Harry has watched the Titanic four times. (On a side note that also means that Ron must have watched it an odd number of times while Harry would watched it an even number of times.)
      Harry : Really? Then so do I.
      6. When Ron said "Yes, indeed!" it is a confirmation to Harry that Ron watched Titanic only three times. He realizes that Ron must have watched Titanic one time less than him, and so knows the answer.
      Answer : At the minimum, Ron watched Titanic three times and Harry watched Titanic four times.
      The Final Question : What's the sum of the possible number of times that Ron watched Titanic?
      7. Ron couldn't have watched Titanic once or twice, as it would have been evident right away in the conversation either to him or to Harry. We already proved that "3 times" is a viable answer choice for Ron. How about trying 4 times for Ron? We already know Harry must have watched Titanic at least four times, but both of them can't have watched Titanic the same number of times. So Ron definitely has not watched Titanic 4 times. So that pushes the ratio up to 4:5, meaning it's possible Ron has watched Titanic 5 times. If there were any number higher than 5 (for Ron), Ron would no longer know for a fact how many times Harry watched the Titanic and the conversation would not proceed in this fashion and would be greatly extended. Hence, to answer the question, there are only two possible times that Ron watched Titanic: 3 times and 5 times.
      3+5= 8
      I think the key to solving this problem is to trust your logic each step of the way and don't doubt what you just understood when using it to understand the next part. If there is a flaw to my logic, please do point it out.

    • @sighmon5640
      @sighmon5640 5 лет назад +2

      @@frankmalenfant2828 or:
      ron watched titanic 1 time
      Line 1 Harry: have you watched more than me?
      Line 2 Ron: I dont know
      Line 3 Harry: I dont know either
      Line 4 Ron: Since you said that, now i know
      Line 5 Harry: And since you said *that,* now i know aswell
      because they both know one of them watched titanic 1 more than the other, if ron watched 1 time, harry would have watched it either 0 or 2 times, so when first asked, ron does not know (line 2). if harry watched 0 times, he would already know that ron watched more than him. but since he does not (line 3) this means he watched 2 times. Upon hearing this, ron knows that harry watch 2 times, so he knows himself (line 4). Harry realizes the logic above and because of this now knows himself (line 5)
      the assumption you made was that they had both watched at least 1 time, which i do not believe was said. even so, if ron had watched 2 times, he still would not know, at least until line 3. because harry could have watched it once, or twice. (perhaps you assumed line 1 as harry saying he does not know? this is not the case i believe. he is asking ron if ron knows, not saying he himself does not know)

  • @tegathemenace
    @tegathemenace 2 месяца назад

    2024 here. For the first riddle I chose to stay on planet 3 throughout as the riddle says you MAY move, but they MUST.
    In 10 moves it is impossible for them to stay alternating between the planets on one end. They'd meet me at the junction definitely😊

  • @rubymills2698
    @rubymills2698 6 лет назад +11

    Most of the TED-Ed riddle videos I've watched have some instance of poor wording that confuses the riddle. In this case, saying "every time they can relocate, they will." This implies that there are times they can't relocate, rather than just that it takes them an hour to do so. I figured this meant they couldn't relocate to a planet the cops are on, which completely changes the riddle.

    • @colgatelampinen2501
      @colgatelampinen2501 Год назад

      It does not imply that at all. You'd have to have "sometimes they do not relocate" in addition to "every time they can relocate, they will" to deduce that sometimes they can't relocate as then you could figure out that if they could always relocate there would be case where they can relocate but will not relocate which would contradict "every time they can relocate, they will". However without such additional condition there is nothing to derive contradiction from.

  • @voltarashtavroth
    @voltarashtavroth 4 года назад +35

    If you failed this riddle...
    *”You have failed me for the last time, Officer!”*

    • @Daniel-ef1mw
      @Daniel-ef1mw 3 года назад

      LA Noire reference? Idk...:/

    • @voltarashtavroth
      @voltarashtavroth 3 года назад

      @@Daniel-ef1mw It's a Darth Vader reference, as in this riddle, we're dealing with the "rebels".

    • @werewolf7262
      @werewolf7262 2 года назад

      The line is "You have failed me for the last time Admiral", but yes

  • @calook1334
    @calook1334 Год назад +2

    1. Endor
    2. Yavin-4
    3. Bespin
    4.Tattooine
    5. Dagobah
    6. Alderaan
    7. Kashyyyk

  • @MysticAlpaca162
    @MysticAlpaca162 6 лет назад +35

    Just get 3 squads and keep them on planets 2,4,and 6

    • @luckylucas7484
      @luckylucas7484 5 лет назад +1

      Yes

    • @alexmun7391
      @alexmun7391 5 лет назад +2

      Lucky Lucas exactly, if the rebels are that bad, they should have more than one squad

    • @GaryLuKOTH
      @GaryLuKOTH 5 лет назад

      Lucky Lucas if only you had time to call them.

  • @atomsk1972
    @atomsk1972 6 лет назад +4

    What about 7-6-3-4-2-4?
    Land on 7 move to 6 then 3 = that row is clear and landing on 3 blocks their movement
    Move to 4 then 2 = only 5 is left as a possibility as if they're on 1 they have to move to 2 and be apprehended
    Move to 4 = if they were on 5 they would have to move to 4
    Maybe I missed a rule but this seems easier.

    • @nunyabizniz6607
      @nunyabizniz6607 6 лет назад +1

      easiest flaw I can see with this is that the Rebels can just repeat 1-2-1-2-1-2

    • @tevobobevo
      @tevobobevo 6 лет назад

      Alright but what about this:
      Say you start at 3, and your pattern goes like this: 3, 7, 3, 5, 3, 1, 3.
      the video says they are forced to move every hour, so if they start on literally ANY of the 7 planets, you will have found them. returning to #3 every other time ensures they can never leave whichever pair of planets they are stuck on from the beginning.

    • @nunyabizniz6607
      @nunyabizniz6607 6 лет назад +1

      still can do 1-2-1-2-1-2

    • @tevobobevo
      @tevobobevo 6 лет назад

      nunya bizniz no they cant.
      in the 6th hour as you say, when they're on 2, you are on 1. at the end of the hour, it says they are FORCED to move, so they must move to either 1 or 3.
      if they move to 1, you're already there.
      if they move to 3, then you're going to catch them, because that's where YOU go next for your 7th hour.
      there's literally no way for them to escape, you've caught them in 7 turns or less.

    • @wiksolop72
      @wiksolop72 6 лет назад +1

      Teve an important distinction is the order of operations. Cops move -> search -> rebels move. As we see at 2:00, the rebels can move onto the same planet as the cops. They aren't caught on arrival and are safe until the cops check the planet a second time.

  • @KWCHope
    @KWCHope 5 лет назад +1

    I love the crazy themes of these riddles, now were a galactic patrol member chasing rebels across a funky planet system

  • @walkingtowersyndrome
    @walkingtowersyndrome 3 года назад +4

    This is a simple strategy that lets you catch them in under 10 moves.
    1: Start at the 3rd planet.
    2: If they are not there, move to one of the other planets nearby, 6, 2, and 4.
    3: If they are not in those planets, they cannot go anywhere else other than back track to the original planet they were in. If they move to 3, we can catch them. If they dont, they back tracked.
    (If they back track) 4: Move to one of the middle planets. If they arent in the one you went to, they can now only move to the same outer planet or planet 3. You can repeat as much as you want, as long as you do it in under 10 turns.

    • @rybiryj
      @rybiryj 3 года назад +1

      Doesn't work. I think you assume that they start on an odd numbered planet

    • @walkingtowersyndrome
      @walkingtowersyndrome 3 года назад

      @@rybiryj yes

  • @PebProductions46
    @PebProductions46 6 лет назад +11

    I like how all seven planets are Star Wars references.

  • @legendhero-eu1lc
    @legendhero-eu1lc 5 лет назад

    Thank you for the video! All of you friends are super awesome!

  • @nicksacyn
    @nicksacyn 6 лет назад +13

    This is the best thing of ted-ed

  • @iaago1520
    @iaago1520 6 лет назад +21

    or you can just scan for infrared light from the engines firing

  • @xexpaguette
    @xexpaguette 4 года назад +1

    First Ted-Ed riddle I solved

  • @gracygarg9632
    @gracygarg9632 4 года назад +10

    Harry has green eyes soo...

  • @TheFuriator
    @TheFuriator 6 лет назад +16

    Whoa this is insanely time consuming, the amount of paths is just gaaaaaahhhhhhhh

  • @kid6417
    @kid6417 4 года назад +1

    If you look closely at 0:12, you can see the info about the criminals. Here they are:
    Pete: RePete:
    Height: Height:
    3'-ish 3'4.20
    Weight: Weight:
    80-something lbs 84.71072 lbs
    Wanted for: Wanted for:
    General Apathy Specific Larceny

  • @glassperegrine
    @glassperegrine 5 лет назад +4

    “Hey, glass here, I can’t call in for work”
    “Why, they’re criminals, we need you!”
    “No... it’s to complicated, and my brain is fried”
    That would be my excuse if they asked me to do this...

  • @kaiwut
    @kaiwut 6 лет назад +23

    4:30
    Can't you get out.
    Really.
    Can't you

    • @anupmukhia8660
      @anupmukhia8660 4 года назад +1

      KaiWut the pic is a close up si shot from the bars :D ...and yeah, nice one there xD

  • @ArYaSeNic
    @ArYaSeNic 5 лет назад +1

    brilliant : how many sponsors do u want from us?
    ted-ed : YES
    pls make a bonus riddle but u show the answer in youtube

  • @sheebeehs1121
    @sheebeehs1121 5 лет назад +7

    "They must cross over to the left bank of a crocodile infested water." Solution: Wait until the crocodiles die, because that water looks like slime. Then, jump on the corpses and get to the other side :D

  • @jackjoop6964
    @jackjoop6964 5 лет назад +7

    Did anyone see that the bandits names were Pete and RePete?

  • @plandl1
    @plandl1 4 года назад +2

    How interesting it would be to watch 20 geniuses play Survivor using concepts like this!

  • @babuaditya27
    @babuaditya27 6 лет назад +7

    Wow just suscribed and a new video.....this one i was able to solve.....easy i knew that before

  • @diec2338
    @diec2338 4 года назад +7

    What I expected: Logic and strategy
    What I got: Rip-offs of star wars planets

  • @cytroxiangamer7
    @cytroxiangamer7 2 года назад +1

    I think I could solve this riddle in 6 moves - start on planet 3, either criminals start on odd or positive not 3, - you move to 1 and back to 3, if they were on either 1 or 2 you would have caught them if not repeat for the other two wings. My reasoning is if they start on 3 you catch them if not they start on positive or odd so moving to 1 means if they are there they are caught, if on 2 they move to 3, you then move to 3 and catch them. If not on 1 or 2 then repeat for 4&5 and 6&7.

    • @skiller5034
      @skiller5034 2 года назад

      That wouldn't work, here's why :
      R-Rebels, Y-You.
      Start : R-2 Y-3
      Move 1 : R-3 Y-1
      Move 2 : R-4 Y-3
      Move 3 : R-3 Y-5
      Move 4 : R-6 Y-3
      Move 5 : R-3 Y-7
      Move 6 : R-2/4/6 Y-3
      They can avoid you literally forever if you use that strategy.

    • @cytroxiangamer7
      @cytroxiangamer7 2 года назад

      @@skiller5034 i see the error in my reasoning

  • @yvonnecarolinesaliling
    @yvonnecarolinesaliling 4 года назад +7

    Harry: How many times hsve you watched Titanic?
    Ron: I don't know.
    Me: You never watched the Titanic!? It already sunk before you.

  • @samnesium2003
    @samnesium2003 5 лет назад +4

    Ted-Ed: Can you solve the seven planets riddle ?
    Me: Not really. But I'll watch anyway..

  • @jeremyahn906
    @jeremyahn906 4 года назад

    Nice
    Star wars AND Harry Potter in 1 RIDDLE video?
    This deserves a like.

  • @munshatmuhtadee2013
    @munshatmuhtadee2013 Год назад +3

    Id just chill in a random planet and wait for em to get there🤓

  • @YoyIeCake
    @YoyIeCake 4 года назад +12

    Step 1: Confirm that you have green eyes
    Step 2: Ask the rebels to surrender

  • @HellyWalkR
    @HellyWalkR 4 месяца назад

    I found a different solution i think.
    1+2: We start on an even planet, waiting one round, so we can ensure there didn't start on that outer planets too.
    3: We then move to the middle planet.
    They have to be in one of the other two planet rows.
    4: We go to one outer Planet, because if they are on an even planet, their next move will go to the outer planet, where we would get them, or the middle planet. If they are on the outer planet we get them immediatly.
    5: As they could have been on the even planet, we have to go to the middle planet again, where we would get them too, if they were on the other row.
    6: From there on we just go towards the last two planets, going first for the even planet.
    7: As our seventh move we would get them on the outer planet.
    That seems correct, right? I don't know any move or starting position by them where we couldn't get them.

  • @deepee159
    @deepee159 4 года назад +4

    4:24
    Teded - thanks to your deductive reasoning!
    Me - mine ? 🤔😏