Mathematically Lucky Tickets

Mathematically Lucky Tickets


Sofia cracks open the treasure chest. Inside are slips of paper with six digit numbers on each slip.

“What’s this?” She asks, quizzed. “Nikola, are these what I think they are?”

“They look like lucky tickets! Look at how many there are, there must be hundreds! Any of them could be a winner!”

“Oh man! We could turn them into the lucky ticket commission and collect the reward! I could pay my dad back for the spaceship!”

“Er, you didn’t buy it yourself?” Stephen asked Sofia.

“Well, not as such. I borrowed the money from my dad on the condition that I’d pay him back. Now maybe I can!”

Stephen sighed. “Well, let’s check the tickets to see if we have a winner.”

“I have an idea. I brought my number cruncher 5000 along. I’ll just write a quick function to find out if we won so we don’t have to do it...

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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

Configure your tool

checkio --domain=js 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.

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