# The Einstein Problem-Lite

Simple

The Einstein's Puzzle is a well-known logic puzzle. It is often called Einstein's Puzzle because it is said to have been invented by Albert Einstein as a boy. However, there is no known evidence for Einstein's or Carroll's authorship. This puzzle can be modified with various conditions to produce a variety of similar puzzles. For starters, we will solve a simplified version of the puzzle.

There are 5 houses on street which are painted 5 different colors: blue, green, red, white and yellow.
In each house lives a person of a different nationality: Brit, Dane, German, Norwegian and Swede.
These people drink a certain beverage: beer, coffee, milk, tea and water.
Smoke a certain brand of cigarettes: Rothmans, Dunhill, PallMall, Winfield and Marlboro.
They keep a certain pet: cat, bird, dog, fish and horse.

None of the owners have the same pet, smoke the same brand of cigarette, or drink the same beverage.

You are given a set of "relations". Each relation connects two identifiers in the owner relationships. For example: "Norwegian-Dunhill" indicates that the Norwegian smokes only Dunhill. "5-dog" indicates...

You should be an authorized user in order to see the full description and start solving this mission.
Settings
Code:
Other:
Invalid hot key. Each hot key should be unique and valid
Hot keys:
•  to Run Code: to Check Solution: to Stop:
CheckiO Extensions

CheckiO Extensions allow you to use local files to solve missions. More info in a blog post.

In order to install CheckiO client you'll need installed Python (version at least 3.8)

Install CheckiO Client first:

`pip3 install checkio_client`

`checkio --domain=py config --key=`

Sync solutions into your local folder

`checkio sync`

(in beta testing) Launch local server so your browser can use it and sync solution between local file end extension on the fly. (doesn't work for safari)

`checkio serv -d`

Alternatevly, you can install Chrome extension or FF addon

`checkio install-plugin`
`checkio install-plugin --ff`
`checkio install-plugin --chromium`

Read more here about other functionality that the checkio client provides. Feel free to submit an issue in case of any difficulties.

Pair Programming (Beta-version)

Welcome to Pair Programming! Engage in real-time collaboration on coding projects by starting a session and sharing the provided unique URL with friends or colleagues. This feature is perfect for joint project development, debugging, or learning new skills together. Simply click 'Start Session' to begin your collaborative coding journey!

Waiting for Pair Programming to start...

You are trying to join a pair programming session that has not started yet.

Please wait for the session creator to join.

Waiting for Pair Programming to reconnect...

It looks like the creator of the pair programming session closed the editor window.

It might happen accidentally, so that you can wait for reconnection.