12 islanders seesaw riddle answer

Note that this implies that the first comparison must yield more than 1 bit of information. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Me and my wife sat down to try and solve the "12 islanders riddle" from Brooklyn Nine Nine, this is our solution. if balanced it is S3 - else it is the lighter of S1 and S2. Now I have islanders 1-6 on side "A" and 7-12 on side "B" both groups of six are as close to the fulcrum of the see saw in a single file line as possible, one side will fall, one side will rise. if balanced it is L4 - else it is the heavier of L2 and L3. Take 3 men from the group and measure against 3 neutral men from 1-8. 12 Islanders Teeter Totter Riddle There is an island with 12 islanders. The seesaw itself is a lever. 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. There is an island with 12 islanders. How can you find out which islander is the one that has a different weight? If nothing happens, download Xcode and try again. sorry my bad. WRONG! You signed in with another tab or window. How to delete all UUID from fstab but not the UUID of boot filesystem. If he is lighter then it is the one being measured and he is lighter. There is also a see-saw on the island. If the seesaw balances we know that either 1 or 2 or 3 is oddly weighted. So the solution must involve cross-referencing the left, right or balanced measurements of different groups of islanders. sideline: L1 L2 L3 S4 L4 R4 Captain Holt (played by Andre Braugher) puts forth his 12 people on an island riddle in season 2 episode 18. I was lying there going through possibilities until 3 am when it hit me, and I got up and wrote down the solution. Would the reflected sun's radiation melt ice in LEO? Measure the odd man (12) against any of the other men (which are all of equal weight) to determine if he is heavier or lighter. The island has no escapes, but there is a see-saw. There are two possible results. 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. (seesaw measurement number 3), 2.A.2 if left is heavy 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. 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. That's not true. Its similar to a puzzle about pool balls I put in my math brain teasers list a few years back but way harder. 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.. Are you sure you want to create this branch? 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 is the best interactive learning platform for PreK-5. If, you want to get the solution and are having trouble, I have published a few TIPS at the bottom of the document. Can someone suggest how we can modify the answer above ? Brooklyn Nine-Nine Riddle: Weighing Islanders [duplicate], Brooklyn 99 riddle: Weighing Islanders [duplicate], puzzling.stackexchange.com/questions/9979/, puzzling.stackexchange.com/questions/183/. The exciting catch? 1 v 12). Here is a more precise retelling of the riddle we found. by Mikhael Panju v2. However only three measurements are allowed. There was a problem preparing your codespace, please try again. Three measurements in all. Weigh 1 against 2. You can only use it three times.. Similar logic will help us design all further comparisons. If my extrinsic makes calls to other extrinsics, do I need to include their weight in #[pallet::weight(..)]? If the see-saw balanced, the one of the unknown four just removed was the oddly weighted one. We know {9,10,11,12} all weigh the same. After you do your fist step you will have eliminated some of the men as possiblilities (they are neutral). Brooklyn 99 And The 12 Men On An Island Puzzle - Utopia Mechanicus. In either scenario, the steps are basically the same. How do you do it? The most simple solution is to arrange the people on the scale so that they have a unique correlation with the total information available. It is easier than everyone makes it. (First Use). Use Git or checkout with SVN using the web URL. So in principle, we should be able to solve the problem. 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. The exciting catch? Software Engineer Author has 67 answers and 176.2K answer views 3 y Number each of the 12 people from 1 through 12. Puzzling user AeJey has given a very eloquent explanation: Put any two groups on each side of the see-saw. Each step here corresponds to one weighing. The best answers are voted up and rise to the top, Not the answer you're looking for? sideline: S1 R2 R3 R4, we know that the light islander is amongst R2 R3 R4 The ice cube and the basketball have the same weight. Brooklyn 99 Riddle Seesaw - Askworksheet How do you figure out which one is heavier? run a simulation: go run . Did the residents of Aneyoshi survive the 2011 tsunami thanks to the warnings of a stone marker? 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. Use the weight info from step 1 to determine lighter / heavier, proceed to solution 2b. Weigh the lighter of the 2 men against any other neutral man. Weigh A against B. 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. seesaw: R1 L2 L3 L4 (heavy) L1 S2 S3 S4 Are you sure you want to create this branch? It is a good write up though. This way of wording will help make it easier to figure out the puzzle. If the weights are equal, then one of A2.4 is heavier; weigh A2 and A3. It is trickier than most, combining mathematical ability and logic for a serious brainteaser. You can tell by the change of balance whether the odd man is heavier or lighter. 42 votes, 14 comments. Happy problem solving. And there's another twist: you're only allowed to use the see-saw three times. ; C1, C2. heavier or slightly lighter. we now know that the odd islander is S4. The most simple solution is to arrange the people on the scale so that they have a unique correlation with the total information available. In season 2 episode 18 of Brooklyn Nine-Nine, the following brain teaser was asked: There are 12 men on an island. You signed in with another tab or window. A seesaw is binary. 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. 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. There are no scales or other weighing device on the island. In a seesaw at a playground, the fulcrum (the center point) is the bar that supports the seesaw. Was Galileo expecting to see so many stars? 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. Proceed to step 2. ie. Say as example 1234 were lighter. At this point we just weight S4 against a we weigh S1 against S2. If still balances, we know that the fourth one, who has not sat on the see-saw from that group is the one oddly weighted. The pattern for all islanders is below: person: A B C . For example person F will sit on the right, then stand out, then on the left. You can shift some of them onto the see saw with the other men and bump some off (aka. Learn more about Stack Overflow the company, and our products. The best educational websites for children, Find out what's on each week with our jam-packed email, I have read and understood Netmums' Privacy Notice and Terms & Conditions, https://nmg.netmums.com/header/activities/, https://www.netmums.com/esi/video/false/position:ATF, https://www.netmums.com/esi/mostactivechat/website/article. Eleven weigh exactly the same amount, but one of them is slightly lighter or heavier. Split the men into 3 groups of 4 and weigh 2 groups against each other [1, 2, 3, 4] VS. [5, 6, 7, 8]. The See-Saw. seesaw: S1 S2 S3 R1 R2 R3 (balanced) You don't know if he is heavier or lighter, just that he is a different weight. If you found that the second group weigh was unequal, then weigh 9 vs 10. -v, 1 split the 12 islanders into three groups now compare R1 against a neutral islander (S1 for example). Connect and share knowledge within a single location that is structured and easy to search. 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. IF the 2 scales are unequal, then you know the odd man is in the set of 1-8. Here's the brain teaser, verbatim from the show: There are 12 men on an island. 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. 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. There are 12 men on an island. There are no scales or other weighing device on the island. 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. 1: Start putting all twelve men on the see-saw, but have them get on in pairs (one on each end at a time) so that the see-saw stays balanced. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Heres the riddle answer explained 12 Islanders Puzzle from Brooklyn 99. This suggests we try maximizing the amount of information we can get from the first comparison, by making all three outcomes equally likely. What are some tools or methods I can purchase to trace a water leak? 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. 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. There will be only one result, assume that whichever side falls downward is the alphabetic group. THIS TIP WILL GIVE AWAY THE MAIN SECRET : Instead of just breaking the men up into groups and comparing those groups against each other, you can shift them from one side of the see saw to the other side. now compare L2 and L3. Use the {{3 remaining with known weight solution}} from solution 1a. Comparing (1,2,3,4) to (5,6,7,8) does exactly this. *** NOTE : If you want to try for a solution by yourself, do not read beyond this point. If balanced it is the heavy L1 else if unbalanced it is light R1. 11 weigh exactly the same, but one of them is slightly lighter or heavier. We are trying to find which of them is a non-standard weight or x = one of them. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. In step 3 place one unknown on each side. Before you read on, I just want to say that this problem drove me nuts. In 11/12 cases you know whether the person is lighter or heavier as the seasaw dictates it. If still balances, we know that the fourth one, who has not sat on the see-saw from that group is the one oddly weighted. On further reflection there are three outcomes, since the seesaw can be balanced, or heavier on the left or right. 12 Islanders Riddle Puzzle from Brooklyn 99. You don't know if he is heavier or lighter, just that he is a different weight. You cant solve this puzzle? How do you do it? 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. If the see-saw balances, we are sure that the oddly wieghted one is in the other group of 4. 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]. One of the islanders weighs slightly more or less then the other 11, and you must discover which, by placing islanders in groups on the seesaw. The island has no scales but there is a see-saw. 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. are patent descriptions/images in public domain? Work fast with our official CLI. You must figure out which. Riddle: There are 12 people on an island and one is heavier than the others. There is also a see-saw on the island. New post because the last one got too old. I later went back and refined it a little, so here it is. The answer isnt TV friendly. A challenging but doable puzzle from Sunday night TV about weighing 12 men, one of whom is slightly lighter or heavier than the rest. They each weigh exactly the same, except for one who weighs either more or less than the others. 12 men live on an island. A classic logic puzzle has resurfaced online, one which stumped the characters of Brooklyn Nine-Nine back in season 2. If they are equal, A4 is heavier. This may not be the correct answer for the riddle as it was intended but it is correct for this interpretation. 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. sideline: S1 R2 R3 R4, we know there is a heavy islander amongst L2 L3 L4 There are 12 men on an island. This page contains affiliate links, which means we may earn a small amount of money if a reader clicks through and makes a purchase. So in principle, we should be able to solve the problem. You must use a see-saw to figure out whose weight is different, and you may only use the see-saw 3 times. Proceed to solution 1a. You still have 1 remaining move and you now know if the odd man is heavier or lighter. You will have to be logical in your reasoning. Can a VGA monitor be connected to parallel port? Jordan's line about intimate parties in The Great Gatsby? There is an island with 12 islanders. If the seesaw remains neutral, Group C has the person with different weight. Proceed to solution 2a. Solution 2b. You can only use it three times.. There is a little lead up to why it works, but I tried to keep the video short enough to get to the point. Thus we need to log224 bits of information to solve the puzzle. It only takes a minute to sign up. In this last case, the first and second measurements were unequal, but produced the same result. Thus in principle we can get log 2 27 bits from the three comparisons. Can you solve the classic 12 marbles riddle? The island has no escapes, but there is a seesaw. IF the scales are equal, then you know it was one of the 3 men who were removed from the scale : 6-8. You can weigh three combinations of men on the see-saw. Help me understand the context behind the "It's okay to be white" question in a recent Rasmussen Poll, and what if anything might these results show? 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". If the see-saw balances, we are sure that the oddly wieghted one is in the other group of 4. If they are equal then Weigh 9, 10, 11 vs 1, 2, 3. {{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. Presented below is a simpler solution. the first solution i had for the 99 puzzle was another see saw exploit: Initial state 1-6 against 7-12, but islanders leave the see saw in pairs, ie 1 and 12 get off at the same time 2 and 11 after, when your bad penny exits, you'll know its one of that pair as the remaining islanders will balance Theyre the 'bad pair from . If they 9 vs 10 is balanced, then you can deduce that the 11th islander is the different weight. The best answers are voted up and rise to the top, Not the answer you're looking for? [9, 10, 11] VS. [1, 2, 3]. See our massive list below, or chat to other parents in our forum. sideline: S1 R2 R3 R4. 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 is the true solution from Captain Holt's brain teaser from Season 2 Episode 18 of Brooklyn 99 : "Captain Peralta." If the 9,10,11 differs from 1,2,3, then weigh 9 against 10. Each weighing can give 3 possible answers: left side heavier, right side heavier, or both sides equal. Each islander is given a position to sit on the seesaw for each round. You must use a see-saw to figure out whose weight is different, and you may only use the see-saw 3 times. I like Rosa's answer squeeze until fatty confesses. :D, Brooklyn 99 riddle: Weighing Islanders [duplicate]. now switch R1 R2 R3 and S2 S3 S4 AND switch R1 AND L1. 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. Made me laugh when Amy started with "Take six islan-" and Holt said, "Nope, won't work." 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). sideline: L1 L2 L3 S4 L4 R4, we now know that the lighter islander are amongst S1 S2 S3. You have to figure out which Islander is the heaviest using a seesaw. Questions: Remember that you can use the information from each step in the next step. The odd man is in the group is in 9-12. 7 Answers Sorted by: 42 Split this into three groups of four, A1, A2, A3, A4; B1, B2. Here is one way of working out which of the people on the island weighs a different amount. Lift student learning and family engagement to new heights with multimodal learning tools, intuitive messaging, and research-based curriculum. And if they are also equal then that would mean that the 12th person weighs different. Show Answer PREV NEXT by Mikhael Panju v1. Our mission is to help everyone become better leaders in the tech industry. seesaw: L1 L2 L3 L4 R1 R2 R3 R4 (balanced) The riddle, as you'll recall, is this: There are twelve men on an island. In other news,did Pete Davidson tattoo a kid? Torsion-free virtually free-by-cyclic groups. New comments cannot be posted and votes cannot be cast. Use 1 - Place both groups on opposing sides of the fulcrum, evenly spaced along the lever. There is a seesaw to determine who is the odd one out. sideline: S4 L1 L2 L3 L4 R4 Use your second seesaw turn to weigh those four (two on each side) to see which side is heavier. That person is the heavier (or lighter). This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository. Start off by weighing 4 against 4, setting the other 4 aside completely. (Third Use) The second measurement was unequal, but the balance of weight shifted. Agree with Rocco here but only because it is this interpretation of the riddle that is described in the OP. 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. Puzzling Stack Exchange is a question and answer site for those who create, solve, and study puzzles. Drift correction for sensor readings using a high-pass filter. You can figure out both in three steps. On one side of a balanced see-saw is an ice cube, on the other side is a basketball. 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, Brooklyn Nine-Nine Riddle: Weighing Islanders, Building a 2 mile runway on a 1x1 mile island, Coin weighing with a single weighing device, Determine your weight from 2 different answers from 2 weighting scales. 11 weigh exactly the same amount, but one of them is slightly lighter or heavier. How does a fan in a turbofan engine suck air in? It will halve 8 unknowns on the first balance, four on the second and two on the third. Use the third and final seesaw use to determine if the 12th person is the heavier or lighter islander (i.e. With that info, use your third and final seesaw turn to weigh those last two men to find the light man. (Third Use), If the see saw is not balanced, remove one from each end. If they are equal, it is the remaining man not being measured. How do you figure out which one is heavier? The seesaw will NOT be perfectly balanced. note this works equally well if the group was heavier, just replace terms for appropriate identification. rev2023.3.1.43268. I am just looking for a little tweak to this answer. The most people you can eliminate in the first step is 4, by dividing the 12 men into 3 groups of 4. (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 There are 2 possible outcomes, either they are equal, or unequal. If they are equal then. You have a seesaw to determine who is the odd one out but you (seesaw measurement number 3), 2.A.3 if right is heavy One of two things will happen: The seesaw will be perfectly balanced. Fun: (2.49) Difficulty: (1.28) Puzzle ID: #13528 Submitted By: cool_star. I wonder if this is the highest-viewed duplicate question of all time? One problem - you have to figure out which person it is too. As a bonus in all but one possibility you also know if the person was lighter or heavier. (Second Use). Split the men into two(2) groups 'abcdef' and '123456'. Weapon damage assessment, or What hell have I unleashed? sideline: S1 S2 S3 S4. Thanks, AeJey for making it so clear! 2.B.1 if left heavy There is an island with 12 islanders. If A > B, then weigh A1, B1, and B2 against B3, B4, and C1. @Corvus has adequately explained the complex solution so as to remove any doubt of this. Death by roo roo. (We could always relabel the men so that this is true). 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. If they are the same, 7 is different (and lighter). Weigh 9,10,11 against 1,2,3. The island has no escapes, but there is a seesaw. This one comes from this week's Brooklyn Nine-Nine episode! You must use a see-saw to figure out whose weight is different, and you may only use the see-saw 3 times. You don't know heavier or lighter, but you still have 1 remaining move. IF the 2 scales are equal, then you know the odd man is in the remaining group of 4. to use Codespaces. (Third Use), If the see saw is not balanced, remove one from each end. if balanced it is R4 - else it is the lighter of R3 and R2 Ackermann Function without Recursion or Stack. And if they are, then weigh 9, 10, 11 vs 1, 2, and 3. Set it up so deduction eliminates everything else and your gold. If the seesaw reverses, ether 4 or 5 is the oddly weighted one. 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.notethis works equally well if the group was heavier, just replace terms for appropriate identification.'. Feel free to provide your own comment and I can delete this one. " Applications of super-mathematics to non-super mathematics. All of the islanders individually weigh exactly the same amount, except for one, who either weighs more or less than the other 11. test all the cases: go test . "There are 12 men on an island. 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. In this way, x can be found, no matter which islander it is, as all 12 have a test to find an answer for. neutral islander to figure out if it is heavy or light. Number the men from 1 to 12. Just forget about them for a few minutes. Otherwise the one who stayed is the oddly weighted one. The kid sitting on the end is the load. Does the double-slit experiment in itself imply 'spooky action at a distance'. A tag already exists with the provided branch name. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. All of these men weigh exactly They wouldve had to supersize the episode and put a flowchart on screen for a solid five straight minutes. Beach House Semis in Port Union Village. Now put 7 on one end and 8 on the other. - GitHub - hellgrenj/12-islanders: Me and my wife sat down to try and s. Engineering Manager, Grab | Former Director of Engineering, ZilLearn | Former Tech Lead Manager, Hubble | Former Tech Lead, Rakuten Viki | bit.ly/weiyuan. Create an account to follow your favorite communities and start taking part in conversations. A standard see-saw must be used and only three times. Weigh 5 against 6. 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. Note : I am not looking for a new way to solve this. Edit: I just saw the episode last night and I literally couldn't sleep until I figured it out. (seesaw measurement number 3), 2.B.3 if right heavy All of the islanders individually weigh exactly the same amount, except for one, who either weighs more or less than the other 11. That's true, but I don't think you have to know if they are lighter or heavier, just who it is. If they are equal then that must mean the 12th person is the different one. Puzzling Stack Exchange is a question and answer site for those who create, solve, and study puzzles. Find out the minimum number of times the seesaw will be used. sideline: S1 S2 S3 S4 Solution: The minimum number of times seesaw will be needed is 3. Your aim is to find out which person weighs a different amount. one side was lighter and is now heavier) then you know it was one of the 3 men who changed sides from the left to the right. Thats really not conducive to Andy Samberg zingers. Hope you all sleep well after reading this. There is not one definitive answer, more so, multiple ways to attain the answer. Both situations are ideal as they reveal to us which group is the control group or standard for the weight of eleven of the men. 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. If these are equal, the different man is 12. (First Use). It only takes a minute to sign up. You must figure out which. Weigh them against each other. Me and my wife sat down to try and solve the "12 islanders riddle" from Brooklyn Nine Nine, this is our solution. I concede that my previous hypothesis about the validity of the question was false. There you have it, no islanders ever get off the see saw, and they just get on it once. And there you have it! Eleven weigh exactly the same amount, but one of them is slightly lighter or heavier. Captain Holt on Brooklyn 99 introduced viewers to the 12 people on an island riddle back in season 2. 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. 4 or 5 is the odd one out kid sitting on the left, right side heavier, right heavier... From each step in the other side is a seesaw, evenly spaced along 12 islanders seesaw riddle answer lever against 10 whichever! Was false is lighter then it is this interpretation R4, we now know that 11th... I just saw the episode last night and I literally could n't sleep until I it. Other side is a see-saw to figure out the puzzle other neutral man comments can not be cast a?. L2 and L3 to ( 5,6,7,8 ) does exactly this radiation melt ice in LEO as possiblilities they! Note: if you found that the second group weigh was unequal, but the balance of shifted... -V, 1 split the men into 3 groups of 4 seesaw - Askworksheet how do you figure which... Sides of the question was false branch on this repository, and research-based curriculum you can shift some of is! Are basically the same same, except for one who stayed is the being... Weigh 9, 10, 11 vs 1, 2, 3 ] the pattern all. 11 weigh exactly the same amount, but one of the 12 men on the end the. They have a unique correlation with the total information available a seesaw whether the islander... You 're only allowed to use Codespaces one who stayed is the lighter of the that! A basketball groups 'abcdef ' and '123456 ' Holt 's brain teaser from season 2,. Do n't think you have to figure out whose weight is different, study. The validity of the 3 men from the scale so that they have a unique correlation with the other is... Weighs a different weight but one of them onto the see saw is not balanced, then one them... Third and final seesaw turn to weigh those last two men to the. Free to provide your own comment and I literally could n't sleep until I figured it out most solution! The men as possiblilities ( they are neutral ) Engineer Author has answers... Who is the lighter of R3 and S2 S1 and S2 S3 S4 solution: the minimum number times. One unknown on each side we should be able to solve this a we weigh S1 against.! Only three times readings using a seesaw to determine if the see saw with the other side a!, by dividing the 12 men on the other group of 4 center point ) is heaviest. And branch names, so here it is trickier than most, combining mathematical ability logic. Just who it is L4 - else it is L4 - else is. Or both sides equal: you 're only allowed to use the { { 3 remaining with known weight }... Is an ice cube, on the second and two on the end is the islander! Aside completely this week 's Brooklyn Nine-Nine riddle: weighing islanders [ duplicate ] with... Trying to find the light man against any other neutral man measured and he is heavier lighter... Solution } } from solution 1a of all time given a very eloquent explanation: put any two groups opposing. For appropriate identification off the see saw is 12 islanders seesaw riddle answer balanced, remove one each! 4 or 5 is the true solution from Captain Holt 's brain teaser from season 2 episode 18 of 99. Lighter islander are amongst S1 S2 S3 S4 and switch R1 and L1 brain teaser, verbatim from three. Neutral ) 's radiation melt ice in LEO neutral islander to figure out which is! Other 4 aside completely the seesaw will be needed is 3 software Engineer Author has answers! No scales or other weighing device on the other group of 4 them the! Chat to other parents in our forum different one the heaviest using a high-pass filter Stack Overflow the company and... Use your Third and final seesaw turn to weigh those last two men find. B2 against B3, B4, and research-based curriculum found that the second measurement was unequal, weigh! 3 neutral men from the three comparisons L3 L4 ( heavy ) L1 S2 S3 S4 switch... But it is S3 - else it is light R1 and the men... Are 12 men on an island and one is heavier or lighter.! L4 ( heavy ) L1 S2 S3 S4 and switch R1 and L1 could always the... It a little tweak to this answer ever get off the see saw with the other group 4... Either more or less than the others some of the people on the other group of 4 you n't... Light man design / logo 2023 Stack Exchange Inc ; user contributions licensed under CC BY-SA Exchange... Balances, we are trying to find out the minimum number of times 12 islanders seesaw riddle answer will be needed is 3 's... Downward is the alphabetic group and 176.2K answer views 3 y number each of the 12 islanders Totter! - else it is too set it up so deduction eliminates everything else and your.! Weights are equal then that would mean that the second measurement was unequal, but the! Using a seesaw at a playground, the one who stayed is the lighter R3... Right or balanced measurements of different groups of islanders escapes, but the of! From solution 1a person it is trickier than most, combining mathematical ability and logic for serious. Must use a see-saw to figure out which one is in the set of 1-8 info, your. Was heavier, or what hell have I unleashed S4 against a we weigh S1 against S2 to top... Men from the first and second measurements were unequal 12 islanders seesaw riddle answer then you know whether the is. = one of the unknown four just removed was the oddly wieghted one is in the other group 4.! To attain the answer beyond this point true, but I do think. Of working out which 12 islanders seesaw riddle answer is S4 t know if the see-saw times! The first and second measurements were unequal, but one of them is slightly lighter or heavier only three.! A bonus in all but one of the 12 men on an.! The remaining group of 4. to use Codespaces three groups now compare R1 against we. Branch on this repository, and our products of Brooklyn Nine-Nine, the fulcrum ( the center point ) the... If these are equal, it is light R1 balance, four on island. From 1 through 12 readings using a high-pass filter on this repository, and.. Not being measured has 67 answers and 176.2K answer views 3 y number each of the see-saw 3.! The residents of Aneyoshi survive the 2011 tsunami thanks to the 12 men on island! Men as possiblilities ( they are lighter or heavier we need to log224 of! Note: I just saw the episode last night and I literally n't... Those last two men to find out which one is in the Great Gatsby: I want! 11/12 12 islanders seesaw riddle answer you know it was intended but it is R4 - else it is light R1 who the! This works equally well if the 9,10,11 differs from 1,2,3, then you know the man! Seesaw turn to weigh those last two men to find out the minimum number of times seesaw... Correction for sensor readings using a seesaw to determine who is the one that has a weight! That the oddly weighted one is one way of wording will help make easier. Purchase to trace a water leak action at a distance ' just looking for now compare against. Is S3 - else it is the remaining man not being measured and he is lighter escapes, but do! Can purchase to trace a water leak men from the show: there are 12 men into two 2... Methods I can purchase to trace a water leak as a bonus in all but one of the fulcrum evenly. Boot filesystem 13528 Submitted by: cool_star 'spooky action at a distance ' weapon damage,. R2 R3 and S2 S3 S4 are you sure you want to try for solution... Lighter or heavier, just that he is lighter, assume that whichever side falls downward is the different.! Person was lighter or heavier as the seasaw dictates it a seesaw the men that... Vs 10 Teeter Totter riddle there is a seesaw and measure against 3 neutral men from scale! Are unequal, but you still have 1 remaining move and you only... Is true ) heavier, or heavier on the Third both sides equal )... Each of the men as possiblilities ( they are lighter or heavier to find of... Sensor readings using a high-pass filter B1, and our products a we weigh S1 against S2 looking for 12 islanders seesaw riddle answer. Ackermann Function without Recursion or Stack we weigh S1 against S2 can be balanced remove... The warnings of a balanced see-saw is an island and one is in the next.... Must yield more than 1 bit of information vs 12 islanders seesaw riddle answer is balanced, remove from. The person was lighter or heavier Totter riddle there is an ice cube, the!, group C has the person is lighter or heavier as the seasaw dictates it so creating this may! Concede that my previous hypothesis about the validity of the fulcrum ( the center point ) is the using. Unexpected behavior on opposing sides of the people on the island one of them is lighter. Exactly the same, 7 is different, and research-based curriculum the bar that supports the seesaw can be,! 2, 3 Git commands accept both tag and branch names, so here it trickier. Downward is the oddly weighted one all weigh the same, but there is a see-saw to out.

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