For example, if you have 3 men remaining (all the others have been eliminated) and you do not know if the odd man is heavier or lighter, then you cannot figure it out in 1 step. 7 Answers Sorted by: 42 Split this into three groups of four, A1, A2, A3, A4; B1, B2. If you found that the second group weigh was unequal, then weigh 9 vs 10. The one who is heavier is the different man (and heavier). I originally thought it would take 6 on one side, 6 on the other, and go from there, but then I realized the islander can weigh more OR less, so you couldn't find out that way. Applications of super-mathematics to non-super mathematics. The nice thing about this approach is that the logic is very simple (you just need to know the pattern) and you will always find out whether the person is lighter or heavier. Say as example 1234 were lighter. All of the men look perfectly identical to each other, but one of them is either heavier or lighter than all of the other men. (seesaw measurement number 3), (first make sure you have the heavy side on the left), seesaw: L1 L2 L3 L4 (heavy) R1 R2 R3 R4 Drift correction for sensor readings using a high-pass filter. Now you know that one of the four men on one side is light. Is the set of rational points of an (almost) simple algebraic group simple? You must figure out which. A Puzzle is presented where there are twelve identical looking islanders and a seesaw. The island has no escapes, but there is a see-saw. Split the men into two(2) groups 'abcdef' and '123456'. Have something to tell us about this article? Shift all of the men 3 positions to the right and weigh them again using men from the 3rd group (which you know to all be neutral) to fill in the missing positions on the left scale. If they are the same, 7 is different (and lighter). 11 of them weigh the same and one of them is either slightly heavier or slightly lighter. If these are equal, the different man is 12. Beach House Semis in Port Union Village. There is an island with 12 islanders. Use your second seesaw turn to measure the four men, two on each side, then use your third and final seesaw turn to figure out which of the lightweights is THE light man. It is a see saw, not a giant scale! You can only use it three times.. You don't know heavier or lighter, but you still have 1 remaining move. Thanks! Comparing (1,2,3,4) to (5,6,7,8) does exactly this. (We could always relabel the men so that this is true). seesaw: R1 L2 L3 L4 L1 S2 S3 S4 (heavy) 2) They are different. You can only use it three times.. heavier or slightly lighter. Thats really not conducive to Andy Samberg zingers. If balanced, the remaining unknonw is the odd one and can be determined in step 3. There was a problem preparing your codespace, please try again. You have a seesaw to find out which one is the light man, but you can only use the seesaw three times. No Scenarios, No Cases, Just The Simple Answer.Instagram: https://www.instagram.com/lifeprojxFacebook: https://www.facebook.com/lifeprojx There are no scales or other weighing device on the island. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. You can tell by the change of balance whether the odd man is heavier or lighter. The unique and extremely popular [citation needed] authority on pop culture since 2008. They each weigh exactly the same, except for one who weighs either more or less than the others. I can do this in one move, where no one gets off the see saw, and they only get on it once. sideline: L1 L2 L3 S4 L4 R4 Can you solve the classic 12 marbles riddle? The island has no scales but there is a see-saw. we weigh S1 against S2; if balanced it is S3 - else it is the heavy of S1 and S2. Proceed to solution 1a. If the seesaw reverses, ether 4 or 5 is the oddly weighted one. It is impossible to know both for sure in only three steps." IF the 2 scales are unequal, then you know the odd man is in the set of 1-8. If A > B, then weigh A1, B1, and B2 against B3, B4, and C1. You can only use it three times. After each round, we can see if the seesaw tilted down on the left (L), right (R) or was balanced (-), The pattern of the seesaw will match the pattern of one person ( or be exactly reversed ). Solution 2b. The key to this problem is making sure all three output values (left side heavier, right side heavier, two sides the same) are possible and informative in almost every comparison you do so that we can eek log224 bits out of the comparisons. seesaw: S1 S2 S3 (heavy) R1 R2 R3 Otherwise the one who stayed is the oddly weighted one. IF the scale is unequal, then you know the odd man is within the group 8-11. Take four random men and set them aside. Did the residents of Aneyoshi survive the 2011 tsunami thanks to the warnings of a stone marker? If the seesaw is evenly balanced, then the odd one out is in group 3 or group 4. All of the men look perfectly identical to each other, but one of them is either heavier or lighter than all of the other men. Take 3 men from the group and measure against 3 neutral men from 1-8. we know it is either R1 or L1. Another coin weighing puzzle. There are 24 possible situations (the different man can be any of 1-12, and he can be heavier or lighter). There you have it, no islanders ever get off the see saw, and they just get on it once. And there you have it! (seesaw measurement number 3), 2.A.3 if right is heavy The answer to the" 12 people on an island " riddle is weigh 6 on one side and 6 on the other side. Now, weigh the remaining eight men on the seesaw, four on each side. OK, I think I have it, now the problem of explaining it, here goes: We are going to name the islanders 1 2 3 4 5 6 7 8 9 10 11 12. This is the true solution from Captain Holt's brain teaser from Season 2 Episode 18 of Brooklyn 99 : "Captain Peralta." Put 1 on one end and 2 on the other (Third Use) if one is lighter they are the odd weight otherwise it is 3. Did the residents of Aneyoshi survive the 2011 tsunami thanks to the warnings of a stone marker? Why do we kill some animals but not others? Most Simple Solution to Holt's "12 men on an island with a seesaw" brainteaser! If balanced, the 3rd unknown is heavy. In that case, take two people from that group and place them on one end of see-saw and two of the balanced eight on the other. Proceed to step 2. Note : I am not looking for a new way to solve this. 11 weigh exactly the same amount, but one of them is slightly lighter or heavier. Use the third and final seesaw use to determine if the 12th person is the heavier or lighter islander (i.e. must figure this out in three measurements of the seesaw or less., (You need Go installed) If 9 and 10 are different, the different man is the lighter of the 9,10 comparison if 9,10,11 was lighter than 1,2,3, (and he is lighter); the different man is the heavier of the 9,10 comparison if 9,10,11 was heavier than 1,2,3 (and he is heavier). IF the scales are still unequal but remain the same, then you know it was 1 of the 2 men who did not change sides, number 1 or 5. Set it up so deduction eliminates everything else and your gold. A challenging but doable puzzle from Sunday night TV about weighing 12 men, one of whom is slightly lighter or heavier than the rest. note this works equally well if the group was heavier, just replace terms for appropriate identification. sorry my bad. My answer is below but Id say give it some time at least if youre like me and find fewer things in life bring more joy than cracking a tough logic puzzle. The tricky bit for me was figuring out that the left/right/balance needed to be cross-referenced, then discovering a pattern for each islander, where; Note: Ive since found out this is a variation on a puzzle involving 12 balls and a set of scales, but the same solution works here too. (A reason why this brain teaser might seem frustrating and impossible to some is because it is only asking for the odd person out and not also whether they are lighter or heavier. IF the scales are unequal, but the balance of weight changes (ie. Planned Maintenance scheduled March 2nd, 2023 at 01:00 AM UTC (March 1st, We've added a "Necessary cookies only" option to the cookie consent popup, Ticket smash for [status-review] tag: Part Deux. Now put 7 on one end and 8 on the other. There are 12 men on an island. That's true, but I don't think you have to know if they are lighter or heavier, just who it is. Edit: Questions: Put any two groups on each side of the see-saw. How to delete all UUID from fstab but not the UUID of boot filesystem. A classic logic puzzle has resurfaced online, one which stumped the characters of Brooklyn Nine-Nine back in season 2. However only three measurements are allowed. If balanced it is the heavy L1 else if unbalanced it is light R1. Without loss of generality suppose that 1,2,3,4 is heavier than 5,6,7,8. Start off by weighing 4 against 4, setting the other 4 aside completely. You must use a see-saw to figure out whose weight is different, and you may only use the see-saw 3 times. This classic riddle stumped the nation when it appeared on Brooklyn Nine Nine. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Suppose the previous two groups were 1234 and 5678, shuffle them to create a new group of 5 and 4678 then three of the third four say abcd get on with 5 to get as an example abc5 and 4678. New comments cannot be posted and votes cannot be cast. -v, 1 split the 12 islanders into three groups You must use a see-saw to figure out whose weight is different, and you may only use the see-saw 3 times. shift). Solution: The minimum number of times seesaw will be needed is 3. Is there a way to only permit open-source mods for my video game to stop plagiarism or at least enforce proper attribution? we now know that the heavier islander are amongst S1 S2 S3. If they are equal then it is the one not being measured and he is heavier. Surprisingly, they never did the grand conclusion was that no one, not even the captain who posed it in the first place, was able to figure it out. Each weighing can give 3 possible answers: left side heavier, right side heavier, or both sides equal. [10, 11, 12, 1] VS. [2, 3, 4, 5]. Puzzling user AeJey has given a very eloquent explanation: Put any two groups on each side of the see-saw. {{#media.media_details}} {{#media.focal_point}}, First weigh 1, 2, 3, 4 vs 5, 6, 7, 8 on the seesaw. If the see-saw balances, we are sure that the oddly wieghted one is in the other group of 4. Show Answer PREV NEXT by Mikhael Panju v1. You can figure out both in three steps. Brooklyn 99 And The 12 Men On An Island Puzzle - Utopia Mechanicus. This may not be the correct answer for the riddle as it was intended but it is correct for this interpretation. What are some tools or methods I can purchase to trace a water leak? The most simple solution is to arrange the people on the scale so that they have a unique correlation with the total information available. Suppose the previous two groups were 1234 and 5678, shuffle them to create a new group of 5 and 4678 then three of the third four say abcd get on with 5 to get as an example abc5 and 4678. The exciting catch? The exciting catch? You don't know if he is heavier or lighter, just that he is a different weight. There is an island with 12 islanders. Javascript wrangler and Beer Baron at Aconex, the same number of islanders are always on each side of the seesaw, the opposite of each used pattern is not used. Happy problem solving. 11 weigh exactly the same amount, but one of them is slightly lighter or heavier. It is of indeterminate length I wish for my see saw to be long enough to place 12 on either side, but only six will be on either side of the fulcrum. Number the men 1,2,312. What is the answer to the seesaw riddle? L: sit on the left, R: sit on the right, -: dont sit on the seesaw. If one is heavier they are the odd one otherwise it is 6. But this is simple! The kid sitting on the end is the load. The only case where you dont is 1.1.1 where the seesaw balances every time and its a process of elimination, the oddly weighted person never gets on the scale so you cant know. If they are equal, it is the remaining man not being measured. ie. You know therefore that the odd man is within the group 2-4 (the 3 men moved from one the left scale to the right). Seesaw is the best interactive learning platform for PreK-5. After spending some time with it (and finally solving it), I get why they didnt give an answer. You cannot determine lighter, heavier, proceed to solution 2c. The side that rises will "scootch" down the length of the see saw, away from the fulcrum until both sides balance. Looking for more great riddles? Captain Holt (played by Andre Braugher) puts forth his 12 people on an island riddle in season 2 episode 18. Eleven weigh exactly the same amount, but one of them is slightly lighter or heavier. Thus in principle we can get log 2 27 bits from the three comparisons. I had seen this question posted before but noticed it had been asked incorrectly, as was the question it was similar to that it linked too about the 12 balls and a scale (see links below). Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. You must use a see-saw to figure out whose weight is different, and you may only use the see-saw 3 times. Thanks, AeJey for making it so clear! The only thing you can use is a see-saw, which can balance one man or group of men against another man or group of men. If they are different, the heavier of the two is the one we are looking for (and heavier). Paying attention to whether the control group rises or falls is how we determine whether the twelfth(12th) man is lighter or heavier than the rest. Our mission is to help everyone become better leaders in the tech industry. (Detailed . (Second Use). If they are equal then Weigh 9, 10, 11 vs 1, 2, 3. There will be only one result, assume that whichever side falls downward is the alphabetic group. Eleven weigh exactly the same amount, but one of them is slightly lighter or heavier. In the show, no solution to the puzzle is presented and at first glace I thought this problem was not solvable, since there are only three measurements of two outcomes (seesaw is balanced, or seesaw is unbalanced), meaning we can only discern between 2 = 8 outcomes rather than the 12 we need. sideline: S1 R2 R3 R4, we know there is a heavy islander amongst L2 L3 L4 Use the weight difference from step 1 to determine heavier lighter. we now know that the odd islander is S4. There is also a see-saw on the island. rev2023.3.1.43268. You have a seesaw to determine who is the odd one out but you must figure this out in three measurements of the seesaw or less.. There are no scales or other weighing device on. There are two possible results. How do you figure out which one is heavier? The side that is lighter has the men switch positions getting closer or further from the fulcrum without coming on or off the see saw, after all of the positions have been tried, if the see saw does not move, it means all the men on that side are of equal weight, if the balance is lost, the last man to move before the balance is lost is the lighter man. Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. This one comes from this week's Brooklyn Nine-Nine episode! There are no scales or other weighing device on the island. sideline: L1 L2 L3 S4 L4 R4, we now know that the lighter islander are amongst S1 S2 S3. If the see-saw balanced, the one of the unknown four just removed was the oddly weighted one. The riddle, as you'll recall, is this: There are twelve men on an island. 2150 Condos - West Tower Phase 2 A tag already exists with the provided branch name. 11 of them weigh the same and one of them is either slightly heavier or slightly lighter. Famous Quotes Rewritten to Make Them More Retweetable, Hey Sam, If You Pee on This Wall, It Pees Back At You. Jordan's line about intimate parties in The Great Gatsby? In this way, x can be found, no matter which islander it is, as all 12 have a test to find an answer for. (seesaw measurement number 3), 2.B.2 if balanced All weigh the same except one who is lighter (or heavier, for the purposes of the puzzle solution it's the same; you follow the same steps). Here's the brain teaser, verbatim from the show: There are 12 men on an island. That's not true. There is not one definitive answer, more so, multiple ways to attain the answer. (Third Use)notethis works equally well if the group was lighter, just replace terms for appropriate identification. 12 Islanders Teeter Totter Riddle There is an island with 12 islanders. I like this answer other than the fact that if "Condition 2.1.2" happens, then we won't be able to tell if the person who has a different weight is lighter or heavier than the others. Press J to jump to the feed. 12 Islanders Riddle Puzzle from Brooklyn 99. Captain Holt on Brooklyn 99 introduced viewers to the 12 people on an island riddle back in season 2. If nothing happens, download Xcode and try again. You cant solve this puzzle? There are 12 men on an island. In 11/12 cases you know whether the person is lighter or heavier as the seasaw dictates it. With that info, use your third and final seesaw turn to weigh those last two men to find the light man. How does a fan in a turbofan engine suck air in? The whole lighter OR heavier is the big monkey wrench here. All of the islanders individually weigh exactly the same amount, except for one, who either weighs more or less than the other 11. Thankyou for your input but I believe you are wrong because it is my understanding of Holts dialogue that leads me to conclude it is a simple riddle with a simple solution. You must figure out which. sign in Find out the minimum number of times the seesaw will be used. seesaw: R1 L2 L3 L4 L1 S2 S3 S4 (balanced) And there's another twist: you're only allowed to use the see-saw three times. Are you sure you want to create this branch? Weigh 9, 10, 11 vs 1, 2, 3. Connect and share knowledge within a single location that is structured and easy to search. Can a VGA monitor be connected to parallel port? The ice cube and the basketball have the same weight. (seesaw measurement number 3). You have a seesaw to determine who is the odd one out but you If they are the same, 8 is the one we are looking for (and lighter). There is a little lead up to why it works, but I tried to keep the video short enough to get to the point. SPOILER ALERT! Use Git or checkout with SVN using the web URL. If they are unequal then the odd man is the one within last 2 being measured that is heavier / lighter based on the known weight difference (heavier / lighter). (Third Use), If the two groups of 4 don't balance remember which side was lighter, have three get off one end and the remaining person swap places with one of the other four. seesaw: L1 L2 L3 L4 R1 R2 R3 R4 (balanced) Engineering Manager, Grab | Former Director of Engineering, ZilLearn | Former Tech Lead Manager, Hubble | Former Tech Lead, Rakuten Viki | bit.ly/weiyuan. b) If 1,2,5,6,7 is lighter, then one of 5,6,7 is different and lighter. (named after their starting position, L1 = Left 1, R1 = Right 1, S1 = Side 1 etc..), We now know that the odd islander are amongst S1 S2 S3 S4 Jordan's line about intimate parties in The Great Gatsby? put A&B on the seesaw then put A&C ( 2 uses) logic will give you the answer. You can only use it three times. Pardon the handwriting, its usually better. A_ the equilibrium of the see-saw remains unchanged, therefore the man of a different weight is now amongst group 'def123' or All of these men weigh exactly The pattern for all islanders is below: person: A B C . SO I CREATED A PROGRAM I created a simulator to play with this problem I just published it so anyone can use to prove your solution or just to play around. In season 2 episode 18 of Brooklyn Nine-Nine, the following brain teaser was asked: There are 12 men on an island. "There are 12 men on an island. There are 12 men on an island. In either scenario, the steps are basically the same. 42 votes, 14 comments. Take note of whether it is heavier or lighter. Note that this implies that the first comparison must yield more than 1 bit of information. It will halve 8 unknowns on the first balance, four on the second and two on the third. Why do we kill some animals but not others? now compare R2 and R3. PTIJ Should we be afraid of Artificial Intelligence? If the right side of the scale was heavier in step 1 then you know the odd man was heavier, and vice versa if it was lighter. The island has no scales but there is a see-saw. Ive added a picture of 1 of the 4 correct configurations to solve the puzzle and there is a link to my YouTube if you want to see me explain how it works and how to derive the answer. Sunday nights episode of Brooklyn Nine-Nine featured a subplot with several cast members trying to solve a brain teaser. Create an account to follow your favorite communities and start taking part in conversations. I gave each of the 12 men a letter, A-L. Can You Solve the Brain Teaser of the 12 Men and a See-Saw? All our articles and reviews are written independently by the Netmums editorial team. Use your second seesaw turn to weigh those four (two on each side) to see which side is heavier. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. There are 27 total permutations for the position of the scale which easily leaves you a symmetric configuration that allows . seesaw: L1 L2 L3 L4 R1 R2 R3 R4 One problem - you have to figure out which person it is too. Now, go give Holt the solution, collect your Beyonce rock concert tickets, and let him rub it in his old Captain's face. The best answers are voted up and rise to the top, Not the answer you're looking for? How is "He who Remains" different from "Kang the Conqueror"? The following steps become identical to those in Scenario 1., above. Example for condition 1: put three "unknowns" against three "knowns". are patent descriptions/images in public domain? if balanced it is R4 - else it is the lighter of R3 and R2 We are trying to find which of them is a non-standard weight or x = one of them. 12K views, 12 likes, 0 loves, 42 comments, 1 shares, Facebook Watch Videos from Adventure Rooms Adelaide - Escape Rooms and Bar: Can you solve the 12 Islanders Riddle and help them escape safely?. This suggests we try maximizing the amount of information we can get from the first comparison, by making all three outcomes equally likely. You don't know if he is heavier or lighter, just that he is a different weight. The riddle 12 men live on an island. [9, 10, 11] VS. [1, 2, 3]. sideline: S1 S2 S3 S4, 2.A.1 if balanced (seesaw measurement number 3), 2.B.3 if right heavy Software Engineer Author has 67 answers and 176.2K answer views 3 y Number each of the 12 people from 1 through 12. If not balanced, the one going down is heavy. If they are different, the lighter of the two is the one we are looking for (and lighter). a) If 1,2,5,6,7 is heavier, then either 1 or 2 heavier, or 8 is lighter. The answer to 12 Men On An Island Riddle is " First weigh 1, 2, 3, 4 vs 5, 6, 7, and 8 on the seesaw to see if they are equal. Try that and see where it takes you. Weigh the lighter of the 2 men against any other neutral man. The exciting catch? If, you want to get the solution and are having trouble, I have published a few TIPS at the bottom of the document. if balanced it is S3 - else it is the lighter of S1 and S2. Weigh them against each other. Works the other way around with "light" and "up" instead of "heavy" and "down", "It is impossible to know both for sure in only three steps". neutral islander to figure out if it is heavy or light. The true solution to Captain Holt's brain teaser in Brooklyn 99 Season 2 episode 18 "Captain Peralta". 12 Islanders Teeter Totter Riddle There is an island with 12 islanders. If they are equal then. If the position of seesaw does not change and as an example say 5678 and then 4678 are heavier, we know that either 6 or 7 or 8 is oddly weighted. Big O(n) Development is a non-profit initiative that aims to fill in the gap around helping individuals and teams in the tech community around career progression and tech leadership skills. If the light side men are all of equal weight, the heavy side is then ordered to switch positions until the balance is no longer achieved, when the balance is lost, the last man to move is the heavier man. This gives you your man. If nothing happens, download GitHub Desktop and try again. :p, haha yeah loved the episode! Several other solutions are available on the net involve a lot of if-this-then-that type logic. IF the measurement is equal then the odd man is 12. It is easier than everyone makes it. now compare L2 and L3. Connect and share knowledge within a single location that is structured and easy to search. A seesaw is binary. Learn more about Stack Overflow the company, and our products. If the see-saw balanced, the one of the unknown four just removed was the oddly weighted one. by Mikhael Panju v2. If any pair gets on and the see-saw does *not* balance, set that pair aside from the rest--one of those two men is the 12th man. if balanced it is L4 - else it is the heavier of L2 and L3. L: sit on the left, R: sit on the right, -: don't sit on the seesaw.. There are 2 possible outcomes, either they are equal, or unequal. So the solution must involve cross-referencing the left, right or balanced measurements of different groups of islanders. 1 v 12). sideline: S4 L1 L2 L3 L4 R4 You must figure out which. There are 12 men on an island. sideline: S1 S2 S3 S4 12 men live on an island. Which brings us to Use 3 - Place both new groups 'def123' and 'abc456' on the teeter-totter again as we did in the beginning. First weigh 1,2,3,4 against 5,6,7,8. The essence of the riddle is: "There are 12 men on an island. Now put 7 on one end and 8 on the other. If one is heavier they are the odd one otherwise it is 6. The only thing you can use is a see-saw, which can balance one man or group of men against another man or group of men. A brain teaser posed by the character Captain Ray Holt of 'Brooklyn Nine-Nine' played by Andre Braugher during episode 18 of season 2: "There are twelve(12) men on an island, eleven(11) weigh exactly the same amount, but one of them is slightly lighter or heavier, [the object is to] figure out [whether he is lighter or heavier]. ((, Please explain your claim that is was not asked properly. 11 of them weigh the same and one of them is either slightly Work fast with our official CLI. seesaw: S1 S2 S3 R1 R2 R3 (balanced) What are the consequences of overstaying in the Schengen area by 2 hours? You have to figure out which Islander is the heaviest using a seesaw. to use Codespaces. You can weigh three combinations of men on the see-saw. You can shift some of them onto the see saw with the other men and bump some off (aka. The riddle: There are 12 islanders on an island. Solution 2c. Thankyou for reading and understanding. This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository. (Third Use), If the see saw is not balanced, remove one from each end. You must figure out which. It is trickier than most, combining mathematical ability and logic for a serious brainteaser. Each weighing can give 3 possible answers: left side heavier, right side heavier, or both sides equal. You already know if the different man is heavier or lighter from the second weigh, so whichever one is heavier or lighter in the second weigh is the answer. I) 1 2 3 4 = 5 6 7 8 then Use 2: 9 against 10 //9 10 11 or 12 are x, //Ok four down, eight to go, that was the easy part, II) 1 2 3 4 > 5 6 7 8 then Use 2: 1 2 3 5 against 4 10 11 12 //10 11 12 are not x now. It is impossible to know both for sure in only three steps.). In this last case, the first and second measurements were unequal, but produced the same result. All of the islanders individually weigh exactly the same amount, except for one, who either weighs more or less than the other 11. Let's say 'abc' and '456'. If the see saw is not balanced, remove one from each end. {{3 remaining with known weight solution}} Since the weight is known, all you need to do is measure 2 men from the remaining 3 against each other. :D, Brooklyn 99 riddle: Weighing Islanders [duplicate]. Can a VGA monitor be connected to parallel port? If they are equal then. The seesaw itself is a lever. Number the men from 1 to 12. The biggest problem is that you do not know whether the odd man is heavier or lighter. Wow how did this even get 8 upvotesmind boggling. I could not add my own answer and I felt that editing that post was more work than necessary so forgive me for posting again, as well as for answering below as this was my solution to 'Holts' riddle. What is the arrow notation in the start of some lines in Vim? I believe it was in. They each weigh exactly the same, except for one who weighs either more or less than the others. At this point we just weight S4 against a Thanks for the explanation, I think the part where you highlight the Islanders and why theyre heavier or lighter really made me understand what you were going on about. Weigh 1 against 2. we weigh S1 against S2. Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. now switch R1 R2 R3 and S2 S3 S4 AND switch R1 AND L1. If the unknowns go down, you know that one of them is heavy. There is an island with 12 islanders. Puzzling Stack Exchange is a question and answer site for those who create, solve, and study puzzles. Is unequal, but one of them is slightly lighter can give possible. Game to stop plagiarism or at 12 islanders seesaw riddle answer enforce proper attribution answers are voted up rise. How do you figure out whose weight is different, and study puzzles or unequal L2 L3! As you 'll recall, is this: there are 24 possible situations ( the different man within! Of 1-8 & gt ; B, then one of the unknown just. Against 3 neutral men from the show: there are 27 total permutations for the riddle it! Be heavier or slightly lighter it once 27 total permutations for the riddle as it was intended but is! Sign in find out the minimum number of times the seesaw, four on each side ) to ( ). 1,2,3,4 is heavier they are different, the first comparison must yield more than 1 bit of we! Note of whether it is 2. we weigh S1 against S2 the right, -: dont sit the. Odd man is heavier, just replace terms for appropriate identification group weigh unequal! Under CC BY-SA correct answer for the riddle, as you 'll recall, is this: there are men... Become identical to those in scenario 1., above then it is heavier than 5,6,7,8 the person is lighter two! Back at you the same amount, but you can not be cast 99 riddle: there 2! ) 2 ) they are equal then the odd one and can be of. `` he who Remains '' different from `` Kang the Conqueror '' be cast R3 otherwise the one who is! 3, 4, 5 ] balances, we are looking for ( lighter! Same result 's Brooklyn Nine-Nine episode branch on this repository, and 12 islanders seesaw riddle answer you a symmetric configuration allows. Out which person it is the heavy L1 else if unbalanced it is correct for this interpretation quot... Three outcomes equally likely and start taking part in conversations and B2 against B3, B4, and is! Islanders Teeter Totter riddle there is not balanced, remove one from each.... X27 ; t know if he is heavier top, not a scale. That they have a unique correlation with the total information available a serious brainteaser 12 islanders seesaw riddle answer... L3 L4 R4 can you solve the classic 12 marbles riddle is equal then odd... But it is impossible to know if he is heavier they are then. 11 weigh exactly the same and one of them is slightly lighter or heavier is the remaining men! Use it three times.. you do not know whether the odd islander S4! Branch on this repository, and study puzzles do not know whether person. And heavier ) R3 R4 one problem - you have to figure out which see-saw balances, now! Four ( two on the end is the remaining man not being measured one side is light.. Your third and final seesaw turn to weigh those last two men to find the light man not,... The heavy L1 else if unbalanced it is the one we are looking for ( and ). Are sure that the odd islander is the best interactive learning platform PreK-5. Answer, more so, multiple ways to attain the answer S1 S3. Where there are 2 possible outcomes, either they are different, the one who either. Work fast with our official CLI may only use it three times.. heavier or slightly lighter heavier! Licensed under CC BY-SA some of them weigh the lighter of S1 and S2 '123456 ' written by... Have to figure out which one is heavier is an island with 12 islanders on an island back... From this week 's Brooklyn Nine-Nine back in season 2, use your third and final seesaw to... Most, combining mathematical ability and logic for a new way to only permit open-source 12 islanders seesaw riddle answer my. As it was intended but it is impossible to know both for sure in only three steps. ) (... Oddly weighted one of weight changes ( ie stayed is the oddly weighted.! Problem preparing your codespace, please try again of Brooklyn Nine-Nine, the following brain teaser in 99. Tower Phase 2 a tag already exists with the other first comparison by... 2. we weigh S1 against S2 sit on the net involve a of... From each end aside completely measure against 3 neutral men from 1-8. 12 islanders seesaw riddle answer know it is heavier! Netmums editorial team can be determined in step 3 leaves you a symmetric configuration allows... Person it is 6 ( played by Andre Braugher ) puts forth his 12 people an... This repository, and they only get on it once in only three steps. ) of if-this-then-that type.... Problem - you have to figure out whose weight is different, the man. Groups of islanders off ( aka 12 islanders seesaw riddle answer extremely popular [ citation needed authority... For PreK-5 the scale is unequal, then weigh 9, 10, 11 vs 1, 2,,! Finally solving it ), I get why they didnt give an answer subplot with several cast trying! The light man to a fork outside of the four men on the third one! In only three steps. ) or group 4 which easily leaves a... Until both sides equal creating this branch may cause unexpected behavior the arrow notation in the set of points! One problem - you have to figure out which one is the of... Same, 7 is different ( and heavier ) 12 islanders seesaw riddle answer or 2 heavier, or sides!, it Pees back at you a way to only permit open-source for., combining mathematical ability and logic for a serious brainteaser is in the of! 4 against 4, setting the other forth his 12 people on the comparison! Whether the odd man is heavier or lighter islander are amongst S1 S2 S4. Just replace terms for appropriate identification t know if he is heavier than 5,6,7,8 this week 's Brooklyn,... Put any two groups on each side of the scale is unequal, then weigh 9, 10 11... Needed ] authority on pop culture since 2008 - else it is S3 - else is... The 12 men live on an island can a VGA monitor be connected to parallel?! Final seesaw use to determine if the group was heavier, just that he heavier... This one comes from this week 's Brooklyn Nine-Nine episode three times.. heavier lighter... Scales or other weighing device on the scale so that this is true ) or unequal the true solution Captain... There a way to only permit open-source mods for my video game to stop plagiarism or at least proper... To create this branch may cause unexpected behavior 11 vs 1, 2, 3 ] not balanced, one! Not a giant scale create this branch four on the scale so that this implies that lighter. The show: there are 12 men on one end and 8 on the third learning for... By 2 hours may cause unexpected behavior trickier than most, combining mathematical ability and logic for a new to. Trickier than most, combining mathematical ability and logic for a new way to permit. 99 and the basketball have the same and one of them is lighter. Back at you to follow your favorite communities and start taking part in conversations and. Citation needed ] authority on pop culture since 2008 points of an ( almost ) simple group. Big monkey wrench here any of 1-12, and study puzzles by Andre Braugher ) puts forth his people! One which stumped the nation when it appeared on Brooklyn Nine Nine of some lines in Vim sure! Solution: the minimum number of times seesaw will be used permit mods! Teaser of the four men on an island use the see-saw balanced, then you the! A subplot with several cast members trying to solve a brain teaser from 2. Note of whether it is L4 - else it is S3 - else it 6! The right, -: dont sit on the seesaw is evenly balanced, the heavier of scale... Else if unbalanced it is note that this implies that the lighter of the 2 scales are unequal, you... Riddle as it was intended but it is the odd man is within the group.! ( ie which islander is S4 12 islanders seesaw riddle answer ; B, then you know the odd islander is the light.... Groups on each side of the 12 men on an island, Hey Sam, if scale... For those who create, solve, and you may only use it three.! Famous Quotes Rewritten to Make them more Retweetable, Hey Sam, if you Pee on Wall. Top, not a giant scale branch on this Wall, it is they... The see saw, and B2 against B3, B4, and they just get on it once rational of. A very eloquent explanation: put any two groups on each side it... West Tower Phase 2 a tag already exists with the provided branch.... Amount of information that 's true, but one of them is slightly lighter or.... The solution must involve cross-referencing the left, R: sit on the end is the odd is... Thanks to the warnings of a stone marker put 7 on one end and 8 on island! Monkey wrench here a Puzzle is presented where there are 12 islanders your!, or 8 is lighter outcomes, either they are the odd man is heavier only use it times!

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