Solution of einstein's riddle

Click here for the riddle

Let's start by going at the obvious clues:

  • The man living in the centre house drinks Milk.
  • The Norwegian lives in the first house.

After marking these two clues on the board, you'll be able to use this other clue:

  • The Norwegian lives next to the Blue house.
The board after filling in the first 3 clues

Next, we'll be looking at these two clues:

  • The Green house is next to the White house, on the left. (1)
  • The owner of the Green house drinks Coffee. (2)

Since the Green house is on the left of the White house, it can't be the first house (as the house right next of it is blue), obviously can't be the second house because it's blue, and for sure can't be the last one, because it has to be on the left of another house. By using (2), we can see that it also can't be the house of the middle (because the gentleman who lives there likes to drink milk). Therefore, .

After using two more clues

Now, check out this clue:

  • The Brit lives in the Red house.

It's clear that the Brit doesn't live in the first house (the Norwegian lives there), and the only other house that can be red is the middle one. . Also, by elimination, .

After filling the Brit's, the red and yellow houses.

Now you can fill these trivial clues on houses #1 and #2:

  • The owner of the Yellow house smokes Dunhill.
  • The man who keeps Horses lives next to the man who smokes Dunhill.

Now, let's analyze these two clues and focus on the first house:

  • The Dane drinks Tea.
  • The man who smokes Blue Master drinks Beer.

Since we have 5 different drinks, two of them are filled on the board (milk and coffee, on houses #3 and #4, respectively) and both Tea and Beer can't be placed in the first house (as there lives the Norwegian and he likes Dunhill), .

Just after finding that the Norwegian likes to drink water

Lets focus on this clue:

  • The man who smokes Blends has a neighbour who drinks Water.

Since the only neighbor of the gentleman who drinks Water live in the house #2, . Right after filling this one, we see that this other clue can be used:

  • The man who smokes Blue Master drinks Beer.

The man who smokes Blue Master can't live in the first or second houses, since they like to smoke Dunhill and Blends, respectively. Also, he can't live in the third and fourth houses, as their owners likes to drink Milk and Coffee. Therefore, the .

After filling the drink and cigarette on the last house

Now we can see that the owner of the Blue house can only drink Tea, so let's mark that. Now, this clue becomes useful:

  • The Dane drinks Tea.
Now we just filled the info about the Dane/Tea on the house #2

Let's what this clue can tell us:

  • The German smokes Prince.

We can see that the German can only live in the last two houses (the only ones that we don't know the nationality yet). Also, the owner of the House #5 smokes Blue Master, therefore, .

Right after that, we can see that  (the only nationality remaining) and:

  • The Swede keeps Dogs as pets.

After filling all the info about the Swede and the German

Now it's clear that the man who lives in the House #3 likes to smoke Pall Mall and this next clue tells us that he rears Birds:

  • The person who smokes Pall Mall rears Birds.
After figuring out that the gentleman of the middle rears Birds and likes Pall Mall

And that's it! The last clue:

  • The man who smokes Blends lives next to the one who keeps Cats.

Since the neighbor of the right of the House #2 has birds, . And 

Finally, the complete Einstein's Riddle answer

That's it, I hope you enjoyed 


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4 comments:

  1. From where do you get these amazing riddeles

    ReplyDelete
    Replies
    1. Internet is a huge sea of information. It's my responsibily to filter and give my reader tge sweetest water of this sea. I hope you enjoy reading my posts.

      Delete
  2. A delightful puzzle. I solved it in much the same way you did with a table using the columns for the different houses #1-5, and rows for the features of color, beverage, nationality, pet, etc. At the begining it seemed that the solution would be impossible, but as you fill in the table, you unlock other clues and the solution comes quickly.

    ReplyDelete
  3. Wow.. Extremely cool problem. Solved it between 22:50 and 00:10 with a piece of paper and pen, but after all I didn't find it really that difficult... Anyways suggested for everybody who understand a little of set theory (also w/o proper preprartion, I'm at 2nd year of High school-italian schol sistem, around 10th year I guess) and has some patience!
    good yard!

    ReplyDelete

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