Can you solve the Einstein Riddle?
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- čas přidán 24. 06. 2024
- Legend says that Einstein invented this puzzle as a child. The following puzzle is adapted from the version in Life Magazine, 1962. Who drinks the water? And who owns the zebra?
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I don't believe that Albert knew about Reeses, M&Ms, Snickers, and Kit Kats when he was a child.
He predicted them.
He was fibbing about time travel.
If you played Red Alert, the opening cut scene explains it all :P
It was adapted by Life Magazine. "It" as in "time" and not the "problem"
Respect to Daniel from México for helping Einstein experience our modern chocolates
All my facts are from Google, so guaranteed accurate. Einstein born in 1879. Logic puzzles attributed to Lewis Carroll in the 1880s. Most of the candies mentioned are from the 1920s and 30s. But I love logic puzzles and I really love the time travel theory.
Actually this type of puzzle is called a Logigram. The main brand of puzzles in the Netherlands (Denksport) has them just like sudoku's. Then you have dozens of them in one little booklet. Various difficulties too, so you can work your way up to harder ones and get increasingly advanced booklets.
yes i grew up with these in the UK where there were often one a week in the back of children's magazines, or you could buy booklets for parents to give to kids, i loved them
but i used to always see them in a different table format. so when the video first started my brain went to how to build that table for tick boxes
null house colour pet drink candy
1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5
house1
2
3
4
5
colour1
2
3
4
5
pet 1
2
3
4
5
drink1
2
3
4
5
candy1
2
3
4
5
once you have a tick in a box you can remove the column and row from everywhere else like suduko
Yes, drawing it out on a proper logic grid makes it much easier to solve.
What's the name of the booklet? Is it available in English?
@@ghstmn7320 you can find them with the suduko puzzles in WH Smiths
The main trick to those is to have a table for each attribute where you can cross the possibilities. That avoids having to duplicate the tables and crossing out the ones that are impossible like in the video.
Everybody drinks water, and nobody owns a zebra. The zebra owns you.
Einstein didn't write this. It was written by the Canadian in the purple house #6 who drinks beer, eats Skittles, and has a pigeon with a video camera strapped to its head.
*Reads thumbnail*
You're joking, right?
There has to be more to it, right?
Ah, 15 parts. Thank you.
My reaction exactly!
All this problem needs is a pencil, paper, and more patience than I possess
Doing separate grids makes a lot more sense... I ended up doing the first letter of each group per section, it was messy, but got there in the end.
On paper, it can help to limit solving to one grid. I think it also helps to alphabetize the variables in each cell, black out false options as you identify them, and circle a cell’s correct answer so it stands out. The first thing you should do after finding any cell’s answer is make sure that option is blacked out in every other cell.
I really like the technique of a triangle of grids, where you can connect any pairwise connection to any other.
Same xD
Took longer but was also more challenging ;)
This puzzle was reprinted in Reader's Digest, June 1963 edition, p. 24.
Wasn't it about alcohol than beverages and cigarettes than candies?
I think so, but it's probably better for kids if we don't talk about those.
Sincerely, a 46yo alcoholic pothead.
(I quit cigarettes about 10 months ago though!🤷♂)
I distinctly remember that the German smoked Prince
We should swap the candy for fruit because candy is bad for you
The original puzzle referred to brands of cigarettes, rather than candies. All of the drinks were non-alcoholic.
@@danielhanson3733And I believe the animals were different. The question was "who owns the fish?"
I did these all the time as a kid on rainy days (we didn't have nintendos back then and only 2 tv channels)
you had them in various difficulty levels
Dang, you're old. We had 4 channels when I was a kid.
Yes, and I bet you learnt a lot more that way than by playing with a Nintendo or watching TV.
@@Chris-hf2sl absolutely, I was a book wurm and I also played outside all the time, I think our tv time per week was maybe 2-4 hours . there just wasn't much worth watching anyway
I made one of those full 5x5x5 logic puzzle type grids to solve it. Very satisfying!
Wouldn't be enough - need 5x5x5x5x5.
Same, I made a grid in excel like those logic puzzles in the magazines and eventually worked it out
@@fifiwoof1969 However many 5s 😂 I made a full grid, basically
@@BlackFiresong you said 3 lots of 5 was full - I merely pointed out that it wasn't.
I thought it was some some trick question. So i initially answered with everyone drinks water because everyone needs to and no one owns a zebra because it isnt a traditionally domesticated animal.
Haha, nice way of thinking though
I try solving this problem every couple of years (so that I forget the answer), and it's the first time I actually solved it!
when i first saw this puzzle it said something along the lines of "if you solve it you're smarter than 99% of people in the world" so i tried and succedeed, but in reality anyone can solve it you just need a LOT of patience and some logical thinking
To solve it? I do not have the energy to even read it😂
Please make video on Gödel's incompleteness theorem
I remember this as a kid, although the countries and candies are different.
It's just a standard logic puzzle, as found in many puzzle collection books. Draw the stepped grids, label them with the six categories, mark the matches and exclusions (ensuring they're replicated across all relevant grids - e.g. The first clue tells you that the Englishman doesn't live in any other coloured house, and no other nationality lives in the red house), and start filling in the table for each house / colour / nationality / pet / drink / confectionary.
These logic puzzles come in large books with all possible grids supplied. They are fun to work through.
Yeah Often sold in airport book shops.
I've heard a variation of thism, also dubbed the "Einstein" riddle, but it was someone stole a fish and you needed to solve the riddle to find the culprit. You had 5 people in 5 houses, each house was a different color, each person a different nationality, each had a different pet (including the stolen fish), preferred a certain type of cigar, and certain type of drink. By using all the hints, you were able to logic who in which house is the thief that stole the fish.
I remember doing this a few years back, it's a fun one
Too bad this wasn't about cigar brands. The puzzle made me want to go out and consume zebras and dogs. Oh well.
Dear Presh, I have no words to express my appreciation for the way you create the placeholder videos that run at the same speed of your speech delivery without which your explanations could more than easily go above the head.. What more - the importance of the same for a puzzle such as this can never be exaggerated...
SOME PERSONAL HSTORY: I always love logical puzzles and scour different sources for the same. I came across this puzzle more than 25 years ago in some local magazine. I could have solved it but for my patience / discipline.. 🙂
Actually, I think that every person drinks water because it is a crucial necessity of all the people. So including it as a separate beverage drunk by a person doesn't sound right.
For the Zebra answer though, I will go with your answer. Nice solution 👍
I think it could be "who drinks water *exclusively* .*
@@wyattstevens8574 Maybe, or some other beverage like apple juice could have worked as well
All these duplicate grids using guess-and-check seems very inefficient. I just used a standard logic puzzle grid, and I solved it fine. I was also able to eliminate more than half the clues right away which meant a lot less to sift through.
Everett Kaser's classic puzzle game "Sherlock" is basically this, but with more clue sets (with unique solutions) than you can shake a stick at, and an intuitive GUI. His other games are just as good.
For the solve, I basically started with what we knew and wrote it all down, as well as a number 1-5, with ??? in place of each empty spot. Then I started slowly working through each clue, checking it with what is known, and finding where it could fit, until I started finding things that could only be in one spot. I won't go into detail on that, as it would be massive paragraphs of text, but I ended up with: #, Nationality, Color, Pet, Candy, Drink
House 1: Norwegian, Yellow, Fox, KitKat, Water
House 2: Ukrainian, Blue, Horse, Cadbury, Tea
House 3: Englishman, Red, Snails, M&M, Milk
House 4: Spaniard, Ivory, Dog, Snickers, OJ
House 5: Japanese, Green, Zebra, Reese's, Coffee
Actually, we are not told that anyone drinks exactly one beverage. It's very likely for example that in every house water is sometimes drunk.
The most likely answer to who owns the zebra is "the nearby zoo".
Thanks for solving the problem visually. I wonder whether the AI (ChatGPT and others) can solve the riddle so easily.
Interesting how demonyms that end with the suffix “-n” don’t sound offensive when used as a singular noun, but those that end with the suffix “-ese” do.
I enjoyed this puzzle, I went through the clues a little differently but got to the same answer. I only used 1 grid but I made notes for the possible options for each space and when a clue canceled something out I removed it as an option for that space. It's a pretty similar tactic just handled a little differently.
Very impressive deduction. How would this work out if the houses were arranged in a circle, with house 1 and 5 next to each other?
The Spaniard owns a dog, but does he own a doghouse?
If you like this type of puzzle, there is an old DOS game called Sherlock which works along the same lines. I spent way, way too much time playing it.
M&Ms were invented in WWII when Einstein was in his 60s, so i doubt he invented this riddle as a kid
The original(?) version had cigarettes instead, which makes a bit more sense.
He predicted them.
This form of logic problem can be solved in one grid just by using the grid slightly differently. The grid design is the same you used with one axis providing a known (house numbers) and the other axis showing the other classes of variable. You should also next fill any grid cells you have answers for, like Norway in House 1.
Here’s where it gets different: Next fill up the remaining grid cells with all of its remaining class options. For example, use BGIRY for colors in every Color cell. To solve, just delete or cross off the omitted options. The later logic jumps on the grids may be harder to see using just on grid, but I got the right answer. I think it’s much easier to keep track of all the info on one grid when solving on paper - and I tend to do these puzzles that way.
Okay but nothing guarantees that the unreferenced pet is the zebra nor that the last beverage is water. Maybe the last house has a chameleon and the other one drinks apple juice. For me, rigorously, we cannot know the drink and the pet of the houses where they are not referenced.
pretty big assumption that water and zebra are included. Could just as easily say "whoever said anything about water and zebra?"
Yeah Skittles came out in 1974. And I believe M and M's in 1941. Einstein was born in 1879. So this couldn't possibly be true unless he was also an incredible psychic.
I love these kinds of logic puzzles. Where could we find more of them?
I solved it using the grid method, and got the answer Norwegian drinks water and Japanese owns a zebra.
I still have a few logic puzzle books when I want to free my brain from the mush of social media!
I used geopolitics to see who would wanna live next to whom. Almost got the nationalities right.
"4. Coffee is drunk in the green house". At first I was confused. I thought there was a person that his name was "Coffee" and was drunk in the green house lol. But after I kept watching, as soon I heard that "milk is drunk in home 3", I realized that he was using the word "drunk" as a past tense of drink instead of being drunk lol.
Looking at the thumbnail, I thought that if only the information provided is considered, no resident drinks water because beverages are usually defined to be all drinks except water. And then the zebra question would have also been some kind of technicality like it’s not traditionally a pet. Though I realize that questions about semantics are not really this channel’s style.
I solved Einstein's Riddle years ago, however instead of candy( brands of cigars ); found it surprisingly straightforward?
Imagine how they’re using your data. This is exactly why you see those ads
The following answer is also logically sound:
1. Everyone drinks water and it is not considered a beverage.
2. Beverage of the Norwegian remains unknown.
3. Nobody has zebra as a pet. They are difficult to handle.
4. The pet of the Japanese remains unknown.
thinking "out of the grid / box" ;-)
and (as a question of intelligente) it may be the quickest answer without "calculating"...
is there any person on the earth who never drinks water?
is there any person on this earth with a Zebra as a pet?
To people sayinb he couldn’t have known about the candies - this is the original riddle
There are five houses in a row, each with a different color. In each house lives a person of a different nationality. The five owners drink a certain type of beverage, smoke a certain brand of cigar, and keep a certain pet. No owners have the same pet, smoke the same brand of cigar, or drink the same beverage. We have to find out each of the respective persons with their respective belongings.
The Brit lives in the red house.
The Swede keeps dogs as pets.
The Dane drinks tea.
The greenhouse is on the immediate left of the white house.
The owner of the greenhouse drinks coffee.
The person who smokes Pall Mall rears birds.
The owner of the yellow house smokes Dunhill.
The man living in the center house drinks milk.
The Norwegian lives in the first house.
The man who smokes Blends lives next to the one who keeps cats.
The man who keeps the horse lives next to the man who smokes Dunhill.
The man who smokes Blue Master drinks beer.
The German smokes Prince.
The Norwegian lives next to the blue house.
The man who smokes Blends has a neighbor who drinks water
I wonder if ChatGPT is able to solve a riddle like this.
maybe-maybe not, we all know how the 4 glass turning puzzle went....
Start with Clues 10 & 15
Norwegian lives in home 1, which is next to the blue house. This means the blue house is home 2.
By clue 6, this eliminates green and ivory as colors for home 1 (as home 2 is blue). By clue 2, this also eliminates red as the color for home 1 (as the resident of home 1 is not the Englishman). This means the Norwegian lives in the yellow house.
By clue 8, the Norwegian eats Kit-Kats, and by clue 12, lives next to where the horse is kept.
(this is just Part 1)
I remember spending like 1-2 hours on this when I was a teenager. Felt very proud when I solved it. But felt even prouder when I figured out that I can use Excel to have easy to fill in grids.
Excel is a fantastic piece of software. You can do just about anything with it. In the late 60's, long before Excel or any spreadsheets were invented, I use to do the (UK) Sunday Times Brainteaser puzzle every week. On one occasion, I programmed a minicomputer at work to solve the puzzle. Just as it was printing the answer, the telephone rang, so I was distracted. As I was answering the call, I was surprised to hear the printer working again. When I checked after the call was over, I saw that the computer had found a second solution, but one that was clearly not the one intended.
Can you prove Einstein's biggest puzzle : E=MC^2 ?
hey Presh, 6 years ago "you" asked "how old is the captain?"
why is it now ok to deduce that
(only) one of the people drinks water ?
one of the people has a Zebra as a pet ?
(and the Houses are numbered in order 1 to 5
with 1 at the left and 5 at the right side...
or 5 at the left and 1 at the right side ?)
funny fact the Houses in numerical order leads to the same "Answer" (norway = water, Japan = Zebra) either if it's 1-5 or 5-1 ;-)
I lost my patience, after I thought I had to make separate cases (grids).
It was all becoming too much for me and I just couldn't do it anymore. I hope that I would have solved this till the end just to enjoy the satisfaction of solving this problem but alas!
Wow!..this was amazing! I don't know whether the question or answer was more difficult to create.
I love how you pronounced it as 'meHico'
The original puzzle is identical to this one except it featured cigarette brands that have now been replaced by candy.
Wow - that was brilliant! Thanks. And you made it so simple to understand!
I recall solving a near-identical problem very many years ago. As stated here, this could not be per Einstein, as he predates the bonbons noted.
Is burgergeld enough for the tea only? 😂
Your method is so much more visually neat than what I did, lol!
I got Water no problem but Zebra took me way too long get (and I cheated by *spoilers below*
being meta and assuming the Norwegian wasn't going to be the answer for both so it made for an easy spot to place the Fox)
I think in many countries houses 1, 3, 5 etc. are next to each other, just like 2, 4, etc. on the other side of the road.
Using MS Excel I was able to work this out on my own. Nice puzzle!
Feels like something solvable with matrices.
There was no way I'd be able to solve this right now, though I absolutely delighted in listening along 😆😆
The text of the thumbnail image says: (each owns different pets) Pluralis,(Pets) different,,, compared to what the neighbor has, or what the home owner himself has? In conclusion, everyone drinks water and has a Zebra
You do not need those many grids it is stated that the greenhouse drinks coffee and 3 already drinks milk at this point it is only logical if 5 is the greenhouse because it is the only scenario that is n+1 therefore 4 is ivory.
The Time Warp of Dr. Brain: Brain Waves
And contrary to what could be wrongly assumed... The Englishman does not drink tea ;)
Okay, I appreciate your method but there is a way to construct this without resorting to multiple different tables. Make a grid to hold your information. Then you could place "Spaniard owns the dog" without needing to know that the Spaniard or the dog are in house 4. I only used hypothesis once while solving it and that's cause I caught something that was either "horse is owned by the tea drinking Ukrainian" or "horse is owned by the orange juice drinking Japanese who likes both Snickers and Reese's" if I hadn't caught that I probably could have solved it without hypothesis. And I definitely wouldn't bed another board.
How said that home 1 is next to home 2?
Basically it is a sudoku
Where does it say the house numbers comes in order?
If this was on the LSAT, you're better off guessing the answer than taking the time to be Doctor Strange and jump.between multiverses
Now to solve the problem without bifurcation.
These puzzles baffled me until back in the 70s i figured out yhe grid system.. But I would do it in reverse, for instance if the swede drank water I would x out water for other countries and beverages for the swede. Your way seems mor efficient as it requires only a few multidimensional grids.
That was soooooo satisfying
There were puzzle books like this I had as a child (early 1980's) but they gave you a grid with two parameters along y and x and then other variables in adjacent grids.
So across would be 1 2 3 4 5 country country country country country, colour colour colour colour
And down would be idk the other parameters such that you would get a half square grid where everything was against everything else.
I know this is a bad explanation
Please check! I used a slightly different approach to solve this problem. I think it is correct. I set up the matrix with the possibles. Very convenient that they all the start with a different letter! Statements 9, 10 & 15 give a direct answer. Statement 6 eliminates green as a colour for House 1.
From there I went through all the remaining statements noting which Houses they would be valid for. Statement 4 was the most vulnerable as it was valid in only Houses 4&5. I then subtracted Houses 4&5 from all the other Statement's valids and found Statement 2 must be true in House 3 & Statement 5 must be true in House 2. Easy solve from there. I think this approach is logically correct but, again, please check. It does roughly parallel the sequence of what Presh was doing.
Did you consider that just because the houses are lined up in a row, and they are numbered 1-5, that they're not necessarily in numerical order?
I'm sure you can come up with a different solution when the houses are marked 23514 or 13542.
irrelevant...you'l. end up on a wild goose chase
Why is there an ad right in the middle of my writing down the clues? V0mplaint 2: WHY ARE THE DAMN CLYES WRITTEN IN SUCH A TINY FONT?
Oh, it's a logigram 😃 I normally solve them using a punnet square and shading out the divisions for which I already have information 😊
How can 50 cows can be tied on 9 pillers with an odd number on each piller
I'll give it a try.
Pillars 1 through 8 each have 5 cows
Pillar 9 has 10 cows
5 is an odd number, and only one pillar has 10 cows, so 10 is the "odd number out"
It works in English anyway 😁
I just skipped through the video to the end and now I'm even more confused 💀💀💀
I actually got the answer right... Although taking 40 minutes doesn't feel like I can be proud of it much😅
A few month ago I wrote a program in c# to solve this type of puzzle in my lunch break :D
I've solved a similar puzzle earlier in 2013 while preparing for CAT examination in India and trust me it was a pain in the ass.. but I did it. 😅
This riddle reminds me of solving sodoku puzzles.
Whats funny is I guessed it was water in house 1 and zebra in house 5 just from the thumbnail. Start with water, cus its the most basic drink and Zebra starts Z which is the end of the alphabet was my thinking.
I wrote a script in C# that solves this by brute force (trying all possible grids and checking the conditions). I will post the code in a reply (it's pretty easy to read if you are interested).
I've heard an alternative to the solution which is more of a logical answer. And that is that there is no answer to the riddle because you can't be 100% certain the Japanese actually owns the zebra. He might have another pet which isn't a zebra. However, since there are many versions of this question, that answer doesn't always make sense, so I'm not sure if it's correct
Except that the wording of the initial setup excludes that possibility. We already know from the start that there are 5 different pets, and we know which animals they are. By the time we get to that last step all the other pets have been placed elsewhere. Edit: In the context of the puzzle, the fact that one of them is a Zebra is implied by the question itself.
Since it's asked for the zebra, not a zebra, means the zebra is part of the the animal set.
Of course in this adaption, the water drinker is Norwegian who has a fox, and the zebra belongs to the only non-european.
water - norwegian
zebra - japan
by chatGPT in 1 sec.
The funny part is that I used one grid and figured out house 1 completely in only 4 steps. The rest took longer.
Actually the information given neither does guarantee that anyone is drinking water nor that anyone owns a zebra. You are falsely assuming that this information was given.
Reese's rhymes with pieces.
And with nieces. And leases. And thesis. And geese’s. What’s your point?
@@verkuilb This is the internet. Why are you so confused about seeing somebody correct someone else?
I did a similar exercise with Dart and it is really fun.
The zookeeper!
Very systematically done