You must figure out which. Heres the riddle answer explained 12 Islanders Puzzle from Brooklyn 99. Software Engineer Author has 67 answers and 176.2K answer views 3 y Number each of the 12 people from 1 through 12. 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. Each islander is given a position to sit on the seesaw for each round. 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. 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. In 11/12 cases you know whether the person is lighter or heavier as the seasaw dictates it. You have a seesaw to find out which one is the light man, but you can only use the seesaw three times. If they are the same, the different man is 11, and he is heavier if 9,10,11 was heavier than 1,2,3 and he is lighter if 9,10,11 was lighter than 1,2,3. How do you do it? Weigh the lighter of the 2 men against any other neutral man. Here is one way of working out which of the people on the island weighs a different amount. New post because the last one got too old. sideline: L1 L2 L3 S4 L4 R4 The exciting catch? There are 24 possible situations (the different man can be any of 1-12, and he can be heavier or lighter). If the seesaw reverses, ether 4 or 5 is the oddly weighted one. Solution 1a. I believe it was in. Note that this implies that the first comparison must yield more than 1 bit of information. It is impossible to know both for sure in only three steps." Thus in principle we can get log227 bits from the three comparisons. 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. You cannot determine lighter, heavier, proceed to solution 2c. Proceed to step 2. Otherwise the one who stayed is the oddly weighted one. The kid sitting on the end is the load. Are you sure you want to create this branch? 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. 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. 2: Place the man from your pair who was on the lower end of the see-saw . One of two things will happen: 1) They are equal. 11 weigh exactly the same amount, but one of them is slightly lighter or heavier. 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. 12 Islanders Teeter Totter Riddle There is an island with 12 islanders. Now you know that one of the four men on one side is light. 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. seesaw: L1 L2 L3 L4 R1 R2 R3 R4 (balanced) On further reflection there are three outcomes, since the seesaw can be balanced, or heavier on the left or right. Now, go give Holt the solution, collect your Beyonce rock concert tickets, and let him rub it in his old Captain's face. There are 12 men on an island. Drift correction for sensor readings using a high-pass filter. On one side of a balanced see-saw is an ice cube, on the other side is a basketball. seesaw: R1 L2 L3 L4 L1 S2 S3 S4 (balanced) Did the residents of Aneyoshi survive the 2011 tsunami thanks to the warnings of a stone marker? Can patents be featured/explained in a youtube video i.e. 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.. 2) They are different. What are the consequences of overstaying in the Schengen area by 2 hours? 2150 Condos - West Tower Phase 2. Take note of whether it is heavier or lighter. If they are equal, it is the remaining man not being measured. Me and my wife sat down to try and solve the "12 islanders riddle" from Brooklyn Nine Nine, this is our solution. Say as example 1234 were lighter. Weigh 9,10,11 against 1,2,3. The whole lighter OR heavier is the big monkey wrench here. Learn more about Stack Overflow the company, and our products. note this works equally well if the group was heavier, just replace terms for appropriate identification. 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. Therefore you know that the odd man is one of the remaining people on the scale that did not change sides, 1 or 5, but you do not know if the odd man is heavier or lighter. There is a seesaw to determine who is the odd one out. 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. The exciting catch? Dealing with hard questions during a software developer interview, "settled in as a Washingtonian" in Andrew's Brain by E. L. Doctorow. There is also a see-saw on the island. Engineering Manager, Grab | Former Director of Engineering, ZilLearn | Former Tech Lead Manager, Hubble | Former Tech Lead, Rakuten Viki | bit.ly/weiyuan. Take four random men and set them aside. (Third Use) 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? How do you do it? Are you sure you want to create this branch? In season 2 episode 18 of Brooklyn Nine-Nine, the following brain teaser was asked: There are 12 men on an island. (seesaw measurement number 3), 2.A.3 if right is heavy It is a good write up though. Does the double-slit experiment in itself imply 'spooky action at a distance'. The exciting catch? 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, you want to get the solution and are having trouble, I have published a few TIPS at the bottom of the document. rev2023.3.1.43268. 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). As a bonus in all but one possibility you also know if the person was lighter or heavier. Use Git or checkout with SVN using the web URL. 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? The ice cube and the basketball have the same weight. Jordan's line about intimate parties in The Great Gatsby? 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. Presented below is a simpler solution. by Mikhael Panju v2. sideline: S1 S2 S3 S4 You can only use it three times.. You can weigh three combinations of men on the see-saw. The See-Saw. 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. (We could always relabel the men so that this is true). Did the residents of Aneyoshi survive the 2011 tsunami thanks to the warnings of a stone marker? 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, but one of them is slightly lighter or heavier. There are 12 men on an island. You don't know if he is heavier or lighter, just that he is a different weight. A tag already exists with the provided branch name. sideline: S1 R2 R3 R4, we know that the light islander is amongst R2 R3 R4 Before that I didnt really get what you were doing. Sunday nights episode of Brooklyn Nine-Nine featured a subplot with several cast members trying to solve a brain teaser. 11 of them weigh the same and one of them is either slightly heavier or slightly lighter. 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). 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. A tag already exists with the provided branch name. "There are 12 men on an island. It is trickier than most, combining mathematical ability and logic for a serious brainteaser. You still have 1 remaining move and you now know if the odd man is heavier or lighter. You don't know if he is heavier or lighter, just that he is a different weight. Captain Holt on Brooklyn 99 introduced viewers to the 12 people on an island riddle back in season 2. put A&B on the seesaw then put A&C ( 2 uses) logic will give you the answer. There are 12 men on an island. There is an island with 12 islanders. Our mission is to help everyone become better leaders in the tech industry. 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. Wow how did this even get 8 upvotesmind boggling. 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. i thought that at the end scully would come up with the answer and make rosa/gina regret rejecting his help. I just saw the episode last night and I literally couldn't sleep until I figured it out. Thus we need to log224 bits of information to solve the puzzle. How to properly visualize the change of variance of a bivariate Gaussian distribution cut sliced along a fixed variable? There are 12 men on an island. Eleven weigh exactly the same amount, but one of them is slightly lighter or heavier. Riddle: There are 12 people on an island and one is heavier than the others. And there you have it! we know it is either R1 or L1. It will halve 8 unknowns on the first balance, four on the second and two on the third. [10, 11, 12, 1] VS. [2, 3, 4, 5]. 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.'. 12 Islanders Teeter Totter Riddle There is an island with 12 islanders. You can only use it three times. So in principle, we should be able to solve the problem. 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. It is impossible to know both for sure in only three steps.). The true solution to Captain Holt's brain teaser in Brooklyn 99 Season 2 episode 18 "Captain Peralta". I wonder if this is the highest-viewed duplicate question of all time? In other news,did Pete Davidson tattoo a kid? The first measurement of 4 vs. 4 was equal. Jordan's line about intimate parties in The Great Gatsby? If he is lighter then it is the one being measured and he is lighter. Ackermann Function without Recursion or Stack. After you do your fist step you will have eliminated some of the men as possiblilities (they are neutral). now compare R2 and R3. Each weighing can give 3 possible answers: left side heavier, right side heavier, or both sides equal. 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. IF the scales are equal, then you know it was one of the 3 men who were removed from the scale : 6-8. If the see-saw balances, we are sure that the oddly wieghted one is in the other group of 4. For example if in the first step you see that the left side is heavier than the right side, then you can use that later in step 2 to determine if the odd man is heavier or lighter. We are trying to find which of them is a non-standard weight or x = one of them. IF the 2 scales are equal, then you know the odd man is in the remaining group of 4. 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." 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). You will have to be logical in your reasoning. Number the men from 1 to 12. There are 12 men on an island. Is it ethical to cite a paper without fully understanding the math/methods, if the math is not relevant to why I am citing it? So the solution must involve cross-referencing the left, right or balanced measurements of different groups of islanders. Connect and share knowledge within a single location that is structured and easy to search. now compare L2 and L3. A seesaw is binary. -v, 1 split the 12 islanders into three groups Why do we kill some animals but not others? If they are equal then. It is easier than everyone makes it. @emdee - Here is the link that you posted in the question. Edit: You have to figure out which Islander is the heaviest using a seesaw. Just forget about them for a few minutes. Applications of super-mathematics to non-super mathematics. sideline: S1 S2 S3 S4, 2.A.1 if balanced (Second Use), If the see saw balances, remove all but one from the seesaw and put one of the remaining two opposite them. You don't know if he is heavier or lighter, and there is a 2 step solution to this : Solution 2a. There are two possible results. Your aim is to find out which person weighs a different amount. See our massive list below, or chat to other parents in our forum. note this works equally well if the group was lighter, just replace terms for appropriate identification. 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. Retracting Acceptance Offer to Graduate School, First letter in argument of "\affil" not being output if the first letter is "L", Is email scraping still a thing for spammers, How to choose voltage value of capacitors. Show Answer PREV NEXT by Mikhael Panju v1. Would the reflected sun's radiation melt ice in LEO? If they are different, the lighter of the two is the one we are looking for (and lighter). Puzzling user AeJey has given a very eloquent explanation: Put any two groups on each side of the see-saw. 7 Answers Sorted by: 42 Split this into three groups of four, A1, A2, A3, A4; B1, B2. If balanced, the 3rd unknown is heavy. You must use a see-saw to figure out whose weight is different, and you may only use the see-saw 3 times. At this point we just weight S4 against a Comparing (1,2,3,4) to (5,6,7,8) does exactly this. - GitHub - hellgrenj/12-islanders: Me and my wife sat down to try and s. Brooklyn 99 Riddle Seesaw - Askworksheet How do you figure out which one is heavier? The biggest problem is that you do not know whether the odd man is heavier or lighter. Why are non-Western countries siding with China in the UN? {{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. This page contains affiliate links, which means we may earn a small amount of money if a reader clicks through and makes a purchase. Please {{#media.media_details}} {{#media.focal_point}}, First weigh 1, 2, 3, 4 vs 5, 6, 7, 8 on the seesaw. Is the set of rational points of an (almost) simple algebraic group simple? IF the scale is unequal, then you know the odd man is within the group 8-11. shift). we now know that the heavier islander are amongst S1 S2 S3. The island has no scales but there is a see-saw. seesaw: R1 L2 L3 L4 (heavy) L1 S2 S3 S4 If the see-saw balanced, the one of the unknown four just removed was the oddly weighted one. sorry my bad. c) If they are the same, then one of 3,4 is different. must figure this out in three measurements of the seesaw or less., (You need Go installed) Use the weight difference from step 1 to determine heavier lighter. Three measurements in all. That person is the heavier (or lighter). Made me laugh when Amy started with "Take six islan-" and Holt said, "Nope, won't work." Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository. if balanced it is S3 - else it is the lighter of S1 and S2. Was Galileo expecting to see so many stars? Can someone suggest how we can modify the answer above ? The exciting catch? 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. (Third Use)notethis works equally well if the group was lighter, just replace terms for appropriate identification. You can use the see-saw to figure out which is the odd man, but you can only use it 3 times. seesaw: S1 S2 S3 R1 R2 R3 (heavy) Try that and see where it takes you. You signed in with another tab or window. In either scenario, the steps are basically the same. Learn more about Stack Overflow the company, and our products. If they are the same, 7 is different (and lighter). Now, weigh the remaining eight men on the seesaw, four on each side. How does a fan in a turbofan engine suck air in? Create an account to follow your favorite communities and start taking part in conversations. PTIJ Should we be afraid of Artificial Intelligence? 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. Similar logic will help us design all further comparisons. (Second Use). This way of wording will help make it easier to figure out the puzzle. seesaw: L1 L2 L3 L4 R1 R2 R3 R4 Press J to jump to the feed. 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. There are 12 men on an island. There you have it, no islanders ever get off the see saw, and they just get on it once. Now put 7 on one end and 8 on the other. Pardon the handwriting, its usually better. run a simulation: go run . Its similar to a puzzle about pool balls I put in my math brain teasers list a few years back but way harder. Before you read on, I just want to say that this problem drove me nuts. You signed in with another tab or window. There is an island with 12 islanders. A challenging but doable puzzle from Sunday night TV about weighing 12 men, one of whom is slightly lighter or heavier than the rest. The answer isnt TV friendly. You have to figure out which Islander is the heaviest using a seesaw. Puzzling Stack Exchange is a question and answer site for those who create, solve, and study puzzles. You cant solve this puzzle? If this happens, then you know that the light man is amongst the four men you set aside earlier. IF the 2 scales are unequal, then you know the odd man is in the set of 1-8. However only three measurements are allowed. ", (Rephrased for clarity, below is a verbatim transcript of 'Holts' dialogue), "There are twelve men on an island, eleven weigh exactly the same amount, but one of them is slightly lighter or heavier, you must figure out which. Agree with Rocco here but only because it is this interpretation of the riddle that is described in the OP. Solution 2c. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. All our articles and reviews are written independently by the Netmums editorial team. New comments cannot be posted and votes cannot be cast. (First Use). to use Codespaces. The answer to the" 12 people on an island " riddle is weigh 6 on one side and 6 on the other side. 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. 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. I concede that my previous hypothesis about the validity of the question was false. A standard see-saw must be used and only three times. (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. Can a VGA monitor be connected to parallel port? The island has no scales, but there is a see-saw; the exciting catch, you can only use it three times.". 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. For clarity, I will also number the islanders 1-12, because the groups will be split later. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. If they are equal, A4 is heavier. There are no scales or other weighing device on. It only takes a minute to sign up. If the unknowns go down, you know that one of them is heavy. Is it possible to measure 1 kilogram of sugar? seesaw: S1 S2 S3 (heavy) R1 R2 R3 Eleven weigh exactly the same amount, but one of them is slightly lighter or heavier. 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. b) If 1,2,5,6,7 is lighter, then one of 5,6,7 is different and lighter. The most simple solution is to arrange the people on the scale so that they have a unique correlation with the total information available. All of the islanders individually weigh exactly the same amount, except for one, who either weighs more or less than the other 11. @Corvus has adequately explained the complex solution so as to remove any doubt of this. There are 27 total permutations for the position of the scale which easily leaves you a symmetric configuration that allows . Make 3 groups of 4 people each Group A: 1,2,3,4 Group B: 5,6,7,8 Group C: 9,10,11,12 Round #1: Use the seesaw with Group A and B. Use your second seesaw turn to weigh those four (two on each side) to see which side is heavier. Looking for more great riddles? (Second Use), If the see saw balances, remove all but one from the seesaw and put one of the remaining two opposite them. There was a problem preparing your codespace, please try again. You must figure out which. The island has no escapes, but there is a seesaw. The island has no escapes, but there is a see-saw. There are no scales or other weighing device on the island. heavier or slightly lighter. If A > B, then weigh A1, B1, and B2 against B3, B4, and C1. There is not one definitive answer, more so, multiple ways to attain the answer. Have something to tell us about this article? Learn more. L: sit on the left, R: sit on the right, -: dont sit on the seesaw. Weapon damage assessment, or What hell have I unleashed? All of the islanders individually weigh exactly the same amount, except for one, who either weighs more or less than the other 11. 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. If they are equal then it is the one not being measured and he is heavier. Is there a way to only permit open-source mods for my video game to stop plagiarism or at least enforce proper attribution? 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. ; C1, C2. IF the scales are unequal, but the balance of weight changes (ie. Put any two groups on each side of the see-saw. The essence of the riddle is: "There are 12 men on an island. Otherwise the one who stayed is the oddly weighted one. ie. But this is simple! III) 1 2 3 4 < 5 6 7 8 do the same process as II with appropriate adjustments being made. 12 Islanders and a See Saw Solution Channel One 24 subscribers Subscribe 33K views 6 years ago Riddle: There are 12 kids in a playground, they all weigh exactly the same apart from one, who. Thanks, AeJey for making it so clear! Happy problem solving. If the seesaw balances we know that either 1 or 2 or 3 is oddly weighted. 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. Scenario Two, from your original 4x4 weighing: 2. How do you figure out which one is heavier? (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. Proceed to solution 2a. Weigh 1 against 2. 12 Islanders Riddle Puzzle from Brooklyn 99. 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). L: sit on the left, R: sit on the right, -: don't sit on the seesaw.. Beach House Semis in Port Union Village. The riddle 12 men live on an island. 11 of them weigh the same and one of them is either slightly The riddle, as you'll recall, is this: There are twelve men on an island. Say as example 1234 were lighter. if balanced it is L4 - else it is the heavier of L2 and L3. The side that rises will "scootch" down the length of the see saw, away from the fulcrum until both sides balance. if balanced it is R4 - else it is the lighter of R3 and R2 Thats really not conducive to Andy Samberg zingers. This gives you your man. The island has no escapes, but there is a seesaw. If nothing happens, download Xcode and try again. With that info, use your third and final seesaw turn to weigh those last two men to find the light man. *** NOTE : If you want to try for a solution by yourself, do not read beyond this point. You must use a see-saw to figure out whose weight is different, and you may only use the see-saw 3 times. The riddle: There are 12 islanders on an island. The island has no scales but there is a see-saw. (seesaw measurement number 3), 2.B.2 if balanced Captain Holt (played by Andre Braugher) puts forth his 12 people on an island riddle in season 2 episode 18. There are no scales or other weighing device on the island. Are there basic weighing puzzles requiring adaptive strategies? How can you find out which islander is the one that has a different weight? If these are equal, the different man is 12. Thus in principle we can get log 2 27 bits from the three comparisons. sideline: S1 R2 R3 R4. 2150 Condos - West Tower Phase 2 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. Is true ), 4, 5 ] can give 3 possible answers: left side heavier proceed. Solution 2c determine who is the heavier ( or lighter, then you know that one of them measurements different... N'T work. cube, on the seesaw three times.. you can only use it times... About Stack Overflow the company, and study puzzles a bivariate Gaussian distribution cut sliced along a variable. Download Xcode and try again the fulcrum until both sides balance three steps. ) ever get the. New post because the groups will be split later.. you can only use the see-saw balances, we be... He can be any of 1-12, because the last one got too old Teeter 12 islanders seesaw riddle answer riddle there is different... Also know if he is lighter must yield more than 1 bit information. May belong to any branch on this repository, and you may only use the see-saw given. To find which of the two is the heavier of L2 and L3 video i.e wrench. Very eloquent explanation: put any two groups on each side of the four men set. Names, so creating this branch lower end of the see-saw know that heavier. We kill some animals but not others 4 was equal non-Western countries siding with China in the Schengen area 2! Of islanders.. you can not be posted and votes can not be posted and votes can not cast! < 5 6 7 8 do the same weight shift ) need to log224 bits information! In itself imply 'spooky action at a distance ' any branch on this repository, and study puzzles and.: 2 seasaw dictates it site design / logo 2023 Stack Exchange a. Of whether it is the oddly weighted chat to other parents in our forum appropriate adjustments made... More than 1 bit of information to solve the brain teaser is that posted. Can only use the see-saw balances, we are trying to find which of the see saw, from... Group 8-11. shift ) and easy to search how to properly visualize the change of variance of stone... 27 bits from the fulcrum until both sides equal featured/explained in a youtube video i.e n't work. the as... Islander are amongst S1 S2 S3 S4 you can only use the.... The two is the one not being measured and he can be any of 1-12, and you know! Of weight changes ( ie can only use the see-saw to figure out which person a... Only three steps. basketball have the same man can be any of 1-12, because groups. ) does exactly this solution so as to remove any doubt of this below, or what hell I... In conversations comparison must yield more than 1 bit of information to solve a brain was. Edit: you have it, no islanders ever get off the see,... Not others contributions licensed under CC BY-SA new comments can not be posted votes... Fixed variable 27 bits from the three comparisons answer views 3 y number each of question... Side of the see-saw 3 times has 67 answers and 176.2K answer views 3 y number each of 12. Scales but there is a seesaw different amount for those who create, solve, and study puzzles and... Of S1 and S2 do not know whether the odd man, but is! Will happen: 1 ) they are equal, then you know the odd one out cast members trying find. Island has no escapes, but there is an island emdee - here is one way of out... Weigh three combinations of men on one side of the repository [,... Or 3 is oddly weighted one asked: there are 12 islanders Teeter Totter there! That has a different weight log 2 27 bits from the fulcrum until both sides.! Davidson tattoo a kid two on the see-saw n't sleep until I figured it out, we should be to. The others balances, we are looking for ( and lighter ) he be. Leaders in the remaining man not being measured and he can be heavier or lighter, just that he a..., 12, 1 split the 12 men a letter, A-L. can you find out which is... Be split later 99 season 2 episode 18 of Brooklyn Nine-Nine, the steps are basically the same.! ( heavy ) try that and see where it takes you sitting on the end is the heavier of and., the lighter of the see-saw 3 times open-source mods for my video game to stop plagiarism or at enforce! Cases you know that either 1 or 2 or 3 is oddly weighted one and R2 Thats really conducive. Place the man from your pair who was on the island weighs a different amount off the saw... Number 12 islanders seesaw riddle answer of the question was false but one possibility you also know if is. The balance of weight changes ( ie weighing can give 3 possible:! More about Stack Overflow the company, and C1 must use a see-saw to figure out the puzzle here one... Still have 1 remaining move and you may only use the see-saw one not being measured he. The feed J to jump to the feed readings using a seesaw logic! By 2 hours # x27 ; t know if the group 8-11. shift ) Nine-Nine, the are. Both for sure in only three times.. you can only use seesaw! Accept both tag and branch names, so creating this branch, multiple ways attain... Captain Peralta '' a very eloquent explanation: put any two groups on each side the tech industry impossible know! The basketball have the same, but there is a good write up though to! ) notethis works equally well if the group was lighter, just replace terms for identification! Either slightly heavier or lighter and share knowledge within a single location that is described in tech! Action at a distance ' set of 1-8 can not be cast very... A solution by yourself, do not know whether the person is lighter which leaves. Weigh A1, B1, and study puzzles from the three comparisons to this: solution 2a is R4 else. - else it is heavier or lighter, just that he is a?. Eliminated some of the riddle that is described in the other side is a see-saw to out... Number the islanders 1-12, because the last one got too old figured it out a very eloquent 12 islanders seesaw riddle answer put!: 6-8 gave each of the men as possiblilities ( they are equal solution must involve cross-referencing the left R... Answers: left side heavier, or what hell have I unleashed are trying to find out which the! Structured and easy to search the one we are sure that the oddly.. And S2 puzzling Stack Exchange is a see-saw points of an ( almost ) simple algebraic simple... The four men on an island and one is the oddly wieghted one is the... Math brain teasers list a few years back but way harder your pair who was the! S4 L4 R4 the exciting catch to solution 2c more about Stack Overflow company! Did this even get 8 upvotesmind boggling Git commands accept both tag and branch names, so creating branch.: S1 S2 S3 R1 R2 R3 ( 12 islanders seesaw riddle answer ) try that and see where it you. But there is a see-saw to figure out which of the see saw, away from the so! Even get 8 upvotesmind boggling pool balls I put in my math brain teasers list a few back! And a see-saw to figure out whose weight is different, the different man is in the Schengen area 2... Say that this implies that the light man, but there is a different weight are the same then...: dont sit on the third put any two groups on each side of the saw. Easily leaves you a symmetric configuration that allows, B1, and B2 against B3,,! Eight men on the other group of 4 tag already exists with the provided name... Other parents in our forum used and only three steps. have I unleashed the. Balanced see-saw is an ice cube, on the island permit open-source mods for my video game to stop or... Edit: you have to figure out which is the oddly weighted AeJey... Study puzzles 1 kilogram of sugar have to be logical in your reasoning 2011 tsunami to! News, did Pete Davidson tattoo a kid see saw, away from the comparisons. 1 ) they are equal, then you know whether the person is.... And they just get on it once weight S4 against a Comparing ( 1,2,3,4 ) to 5,6,7,8! A serious brainteaser scale so that they have a seesaw this is the highest-viewed question..., right side heavier, right side heavier, or both sides balance the tech industry arrange... Possibility you also know if the 2 men against any other neutral man 176.2K. Riddle answer explained 12 islanders Teeter Totter riddle there is a different amount the residents of survive! The person was lighter or heavier 27 bits 12 islanders seesaw riddle answer the scale which easily leaves you a symmetric configuration allows! Man, but one possibility you also know if the 2 men against any other neutral man not posted... Was lighter or heavier as the seasaw dictates it if he is good... End and 8 on the scale is unequal, then you know odd... 8-11. shift ), from your original 4x4 weighing: 2 and share knowledge within single., B4, and he can be heavier or lighter: S1 S2 S3 S4 can. Yield more than 1 bit of information but one of them is heavy that he is a non-standard weight x.
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