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. If the weights are equal, then one of A2.4 is heavier; weigh A2 and A3. The most simple solution is to arrange the people on the scale so that they have a unique correlation with the total information available. 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. I am just looking for a little tweak to this answer. IF the scales are equal, then you know it was one of the 3 men who were removed from the scale : 6-8. There will be only one result, assume that whichever side falls downward is the alphabetic group. Happy problem solving. neutral islander to figure out if it is heavy or light. It is impossible to know both for sure in only three steps.). Show Answer PREV NEXT by Mikhael Panju v1. heavier or slightly lighter. All of the islanders individually weigh exactly the same amount, except for one, who either weighs more or less than the other 11. Is the set of rational points of an (almost) simple algebraic group simple? Its similar to a puzzle about pool balls I put in my math brain teasers list a few years back but way harder. seesaw: L1 L2 L3 L4 R1 R2 R3 R4 Thus in principle we can get log 2 27 bits from the three comparisons. 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. Fun: (2.49) Difficulty: (1.28) Puzzle ID: #13528 Submitted By: cool_star. You cant solve this puzzle? Solution 2b. There was a problem preparing your codespace, please try again. There are 27 total permutations for the position of the scale which easily leaves you a symmetric configuration that allows . 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? You must figure out which. Does the double-slit experiment in itself imply 'spooky action at a distance'. Ackermann Function without Recursion or Stack. How do you figure out which one is heavier? Torsion-free virtually free-by-cyclic groups. No Scenarios, No Cases, Just The Simple Answer.Instagram: https://www.instagram.com/lifeprojxFacebook: https://www.facebook.com/lifeprojx The exciting catch? sideline: S1 R2 R3 R4. a) If 1,2,5,6,7 is heavier, then either 1 or 2 heavier, or 8 is lighter. *** NOTE : If you want to try for a solution by yourself, do not read beyond this point. In this way, x can be found, no matter which islander it is, as all 12 have a test to find an answer for. Why do we kill some animals but not others? 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 is the true solution from Captain Holt's brain teaser from Season 2 Episode 18 of Brooklyn 99 : "Captain Peralta." Now put 7 on one end and 8 on the other. The exciting catch? 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. 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. There is an island with 12 islanders. I later went back and refined it a little, so here it is. "There are 12 men on an island. must figure this out in three measurements of the seesaw or less., (You need Go installed) Use the weight info from step 1 to determine lighter / heavier, proceed to solution 2b. New post because the last one got too old. It only takes a minute to sign up. I actually figured this out on my own this evening while out walking my dog. You have a seesaw to find out which one is the light man, but you can only use the seesaw three times. How is "He who Remains" different from "Kang the Conqueror"? This way of wording will help make it easier to figure out the puzzle. IF the scale is unequal, then you know the odd man is within the group 8-11. we now know that the heavier islander are amongst S1 S2 S3. Death by roo roo. The island has no escapes, but there is a see-saw. 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. Press question mark to learn the rest of the keyboard shortcuts. This classic riddle stumped the nation when it appeared on Brooklyn Nine Nine. Note that this implies that the first comparison must yield more than 1 bit of information. Applications of super-mathematics to non-super mathematics. I was lying there going through possibilities until 3 am when it hit me, and I got up and wrote down the solution. 2150 Condos - West Tower Phase 2 Can a VGA monitor be connected to parallel port? Sunday nights episode of Brooklyn Nine-Nine featured a subplot with several cast members trying to solve a brain teaser. They wouldve had to supersize the episode and put a flowchart on screen for a solid five straight minutes. You can weigh three combinations of men on the see-saw. 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. we weigh S1 against S2; if balanced it is S3 - else it is the heavy of S1 and S2. 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). 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: L1 L2 L3 L4 R1 R2 R3 R4 (balanced) You signed in with another tab or window. Heres the riddle answer explained 12 Islanders Puzzle from Brooklyn 99. I like Rosa's answer squeeze until fatty confesses. Your aim is to find out which person weighs a different amount. ", (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. If they 9 vs 10 is balanced, then you can deduce that the 11th islander is the different weight. Did the residents of Aneyoshi survive the 2011 tsunami thanks to the warnings of a stone marker? sorry my bad. now compare R2 and R3. Connect and share knowledge within a single location that is structured and easy to search. Set it up so deduction eliminates everything else and your gold. There are no scales or other weighing device on the island. test all the cases: go test . Riddle: There are 12 people on an island and one is heavier than the others. 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. The island has no escapes, but there is a seesaw. 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.'. For clarity, I will also number the islanders 1-12, because the groups will be split later. Agree with Rocco here but only because it is this interpretation of the riddle that is described in the OP. Please All of the islanders individually weigh exactly the same amount, except for one, who either weighs more or less than the other 11. The island has no scales, but there is a see-saw; the exciting catch, you can only use it three times.". If they are equal then it is the one not being measured and he is heavier. The ice cube and the basketball have the same weight. Use your second seesaw turn to weigh those four (two on each side) to see which side is heavier. Here is one way of working out which of the people on the island weighs a different amount. The unique and extremely popular [citation needed] authority on pop culture since 2008. Have something to tell us about this article? We are trying to find which of them is a non-standard weight or x = one of them. if balanced it is L4 - else it is the heavier of L2 and L3. Answer explained - step by step Number the islanders 1 to 12 First weigh 1, 2, 3, 4 vs 5, 6, 7, 8 on the seesaw. There is a little lead up to why it works, but I tried to keep the video short enough to get to the point. Work fast with our official CLI. Just forget about them for a few minutes. If the seesaw balances we know that either 1 or 2 or 3 is oddly weighted. 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. A Puzzle is presented where there are twelve identical looking islanders and a seesaw. Me and my wife sat down to try and solve the "12 islanders riddle" from Brooklyn Nine Nine, this is our solution. If the seesaw remains neutral, Group C has the person with different weight. For example person F will sit on the right, then stand out, then on the left. 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? There are 2 possible outcomes, either they are equal, or unequal. 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 ). sideline: L1 L2 L3 S4 L4 R4 Split the men into two(2) groups 'abcdef' and '123456'. rev2023.3.1.43268. 12 men live on an island. Bottom line? 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. It is impossible to know both for sure in only three steps." The essence of the riddle is: "There are 12 men on an island. The one who is heavier is the different man (and heavier). If they are equal, it is the remaining man not being measured. Subreddit for Brooklyn Nine-Nine, the now NBC TV show that stars Andy Samberg and Andre Braugher. 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. 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. 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. You must figure out which. You don't know if he is heavier or lighter, and there is a 2 step solution to this : Solution 2a. Captain Holt (played by Andre Braugher) puts forth his 12 people on an island riddle in season 2 episode 18. L: sit on the left, R: sit on the right, -: don't sit on the seesaw.. The seesaw itself is a lever. This one comes from this week's Brooklyn Nine-Nine episode! Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. 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. (seesaw measurement number 3). 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. Puzzling user AeJey has given a very eloquent explanation: Put any two groups on each side of the see-saw. The first measurement of 4 vs. 4 was equal. Use the weight difference from step 1 to determine heavier lighter. 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Will also number the islanders 1-12, because the groups will be only one result assume. Nine-Nine featured a subplot with several cast members trying to solve a brain teaser 3 am when it hit,. ( played by Andre Braugher ) puts forth his 12 people on the left Make it easier figure! Other weighing device on the other of A2.4 is heavier ; weigh A2 and A3 exciting catch the three....