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.
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
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.
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.
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!🤷♂)
@@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
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
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 am a 14-year-old from India. I really like solving these kinds of puzzles and I waited for 2 months to get sufficient time after my examinations to solve this puzzle. It took me a long time: over an hour perhaps, but it was really fun and rewarding to solve. Thank you Presh for sharing this amazing puzzle.
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.
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.
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.. 🙂
I figured out first half of the answer and had some of the information written down. Then I watched the video up to the point where you set up the first two grids. And looking at them I figured out the rest of the riddle.
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!
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
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.
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.
Then we'd need an additional clue(s) in order to make the solution unique. Otherwise, there would be at least two possible solutions; namely the one in the video, as well as the following: House 1: yellow, Norway, zebra, water, KitKat House 2: red, England, horse, orange juice, Snickers House 3: ivory, Spain, dog, milk, Cadbury House 4: green, Japan, fox, coffee, Reese's House 5: blue, Ukraine, snails, tea, M&Ms. ==> The Norwegian drinks water and also owns the zebra.
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 👍
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.
I got tripped up by the word "the" in clue 12: "THE house next to the house where the horse is kept" means there is only one house next to the house with the horse meaning the horse should be in house 1 or house 5. It turned out that there were two houses next to the house with the horse which was in house 2. So the clue should have been "KitKats are eaten in A house next door to the house with the horse."
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
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.
Given a solvable problem, I thought this one would be fun and possibly annoying. The approach I took involved a guess across the top row, houses 1 to 5. With Ivory and Green at #3 and #4, the resulting pattern of too many similar unfilled locations looked suspicious to me when I put Red and England under #5, mainly that the proposal diverges toward more possibilities as opposed to fewer. I thought better of a convergent pattern, so I tried #3 with milk alone, and #4 and #5 with ivory and green. Next step was Red and England under #3 because it couldn't go anywhere else. The result forced Yellow and Kitkats under #1 and Horse under#2 because of the KitKat relation. The pace seemed right so I completed the rest from there...
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)
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.
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.
Snickers first appeared in 1930, Kit Kats in 1935, and M&M's in 1941. Einstein was born in 1879 and would have been over 50 when Snickers and Kit Kats first appeared, and over 60 when M&Ms first appeared. Pretty clear that *if* Einstein invented this fairly run of the mill logic puzzle, it wouldn't have been in his childhood.
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.
If you have ever read anything about Einstein as a person, it would be clear to you such riddle could not have orignated from him. He simply didn't like long yada yada yada talks but rather prefered getting straight to the point
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".
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.
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.
"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.
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.
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?
I've encountered this at a logic puzzle website. This was 2000's. Difficult but managed to solve after two days. Satisfying. Presently i don't know how. 😂 Can't remember.
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.
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 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.
I also thought sudoku, but it also is very similar to wood puzzles where you have to fit all the pieces together. The data binds 2 attributes to form blocks and the can only fit in one way.
i spent 3 hours on this...i got to where house 1 had the norwegian in the yellow house who liked water and kitkats, that house 2 was blue with a horse, that house 3 had someone who drank milk and either ivory or red colour, house 4 was either ivory or green and house 5 was either green or red. i didn't use a grid...or set of grids, like you did though...it might have made things easier, cus i eventually gave up and watched the video.
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.
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.
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.
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
i used spreadsheet to solve this. same solution from start until the water part. then i assume norwegian will not be the answer for both water and zebra so i put fox. from that point, it is straight forward
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
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.
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.
*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
Or very good visualization / memory!
Which almost nobody has@@fburton8
Or a common sense to know that water is drunk by everybody and does not count as a favorite beverage, and Zebra is not pet.
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.
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
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
very few people have lot of patience. also very few people has logical thinking
This puzzle was reprinted in Reader's Digest, June 1963 edition, p. 24.
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.
You need 15 5x5 blocks, arranged in a triangle :
B B B B B
B B B B
B B B
B B
B
where each B is a 5x5 block.
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 am a 14-year-old from India. I really like solving these kinds of puzzles and I waited for 2 months to get sufficient time after my examinations to solve this puzzle. It took me a long time: over an hour perhaps, but it was really fun and rewarding to solve. Thank you Presh for sharing this amazing puzzle.
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 ;)
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.
I remember this as a kid, although the countries and candies are different.
I absolutely LOVE puzzles such as this.
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.. 🙂
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!
To solve it? I do not have the energy to even read it😂
I remember doing this a few years back, it's a fun one
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.
Thanks for solving the problem visually. I wonder whether the AI (ChatGPT and others) can solve the riddle so easily.
I figured out first half of the answer and had some of the information written down. Then I watched the video up to the point where you set up the first two grids. And looking at them I figured out the rest of the riddle.
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!
I was making good progress until I hit a contradiction. I'm tired and didn't feel like redoing my work, so I just viewed your solution.
I love these kinds of logic puzzles. Where could we find more of them?
Wow - that was brilliant! Thanks. And you made it so simple to understand!
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
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.
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.
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?
Then we'd need an additional clue(s) in order to make the solution unique. Otherwise, there would be at least two possible solutions; namely the one in the video, as well as the following:
House 1: yellow, Norway, zebra, water, KitKat
House 2: red, England, horse, orange juice, Snickers
House 3: ivory, Spain, dog, milk, Cadbury
House 4: green, Japan, fox, coffee, Reese's
House 5: blue, Ukraine, snails, tea, M&Ms.
==> The Norwegian drinks water and also owns the zebra.
Solved with microsoft paint🎨🖌️ Very satisfying to solve
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
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.
I got tripped up by the word "the" in clue 12: "THE house next to the house where the horse is kept" means there is only one house next to the house with the horse meaning the horse should be in house 1 or house 5. It turned out that there were two houses next to the house with the horse which was in house 2. So the clue should have been "KitKats are eaten in A house next door to the house with the horse."
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
Wow!..this was amazing! I don't know whether the question or answer was more difficult to create.
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.
Given a solvable problem, I thought this one would be fun and possibly annoying. The approach I took involved a guess across the top row, houses 1 to 5. With Ivory and Green at #3 and #4, the resulting pattern of too many similar unfilled locations looked suspicious to me when I put Red and England under #5, mainly that the proposal diverges toward more possibilities as opposed to fewer. I thought better of a convergent pattern, so I tried #3 with milk alone, and #4 and #5 with ivory and green. Next step was Red and England under #3 because it couldn't go anywhere else. The result forced Yellow and Kitkats under #1 and Horse under#2 because of the KitKat relation. The pace seemed right so I completed the rest from there...
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)
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.
Where does it say the house numbers comes in order?
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.
Please make video on Gödel's incompleteness theorem
This puzzle looks very complicated at first, but it just requires the right method, a lot of patience and some logic.
Snickers first appeared in 1930, Kit Kats in 1935, and M&M's in 1941. Einstein was born in 1879 and would have been over 50 when Snickers and Kit Kats first appeared, and over 60 when M&Ms first appeared. Pretty clear that *if* Einstein invented this fairly run of the mill logic puzzle, it wouldn't have been in his childhood.
Using MS Excel I was able to work this out on my own. Nice puzzle!
Why didn't you use the other type of grid with many more lines, and just ticks and crosses? rather than duplicating the outcome grid multiple times?
Well Done, Professor.
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.
That was soooooo satisfying
Done. Haven't worked one of those in almost 30 years.
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.
If you have ever read anything about Einstein as a person, it would be clear to you such riddle could not have orignated from him. He simply didn't like long yada yada yada talks but rather prefered getting straight to the point
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".
Now see if you can solve it if the houses are on a cul-de-sac in a circle instead of a row. Makes “next to” different.
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.
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
"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.
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.
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?
I've encountered this at a logic puzzle website. This was 2000's. Difficult but managed to solve after two days. Satisfying. Presently i don't know how. 😂 Can't remember.
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.
There was no way I'd be able to solve this right now, though I absolutely delighted in listening along 😆😆
"The girl I used to love eats Kit Kats" - Pete Townshend.
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.
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 ;-)
How said that home 1 is next to home 2?
Feels like something solvable with matrices.
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 solved Einstein's Riddle years ago, however instead of candy( brands of cigars ); found it surprisingly straightforward?
Basically it is a sudoku
I also thought sudoku, but it also is very similar to wood puzzles where you have to fit all the pieces together. The data binds 2 attributes to form blocks and the can only fit in one way.
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.
i spent 3 hours on this...i got to where house 1 had the norwegian in the yellow house who liked water and kitkats, that house 2 was blue with a horse, that house 3 had someone who drank milk and either ivory or red colour, house 4 was either ivory or green and house 5 was either green or red. i didn't use a grid...or set of grids, like you did though...it might have made things easier, cus i eventually gave up and watched the video.
Very systematically done
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.
Brilliant!!
Oh, it's a logigram 😃 I normally solve them using a punnet square and shading out the divisions for which I already have information 😊
I love how you pronounced it as 'meHico'
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.
I still have a few logic puzzle books when I want to free my brain from the mush of social media!
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....
My first instinct is that everyone drinks water, and no one can own a zebra.
This was a great one
Brillante.
I solved it using the grid method, and got the answer Norwegian drinks water and Japanese owns a zebra.
I actually got the answer right... Although taking 40 minutes doesn't feel like I can be proud of it much😅
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.
A few month ago I wrote a program in c# to solve this type of puzzle in my lunch break :D
This riddle reminds me of solving sodoku puzzles.
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
Too bad this wasn't about cigar brands. The puzzle made me want to go out and consume zebras and dogs. Oh well.
This was done to make it more family-friendly.
i used spreadsheet to solve this. same solution from start until the water part. then i assume norwegian will not be the answer for both water and zebra so i put fox. from that point, it is straight forward
spreadsheets are great tools, that was the answer i came up with.
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
I used geopolitics to see who would wanna live next to whom. Almost got the nationalities right.
pretty big assumption that water and zebra are included. Could just as easily say "whoever said anything about water and zebra?"