haggle
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Week 1: Hour Detective

Catch fraud with
machine learning.

A new challenge every week. Climb the leaderboard, unlock prizes.

Ages 13 to 18 · free

2 / 500 signed up. We launch at 500.

Get the data

Build a detector

Catch the fraudsters

Climb the leaderboard

Code more. Pick your prize.

Prizes
Hack Club stickers

Ship 5+ hrs, get free stickers.

  • 5 hrs

    Pick 1 prize

  • 15 hrs

    Pick 1 prize

  • 25 hrs

    Pick 1 prize

  • 45 hrs

    Pick 1 prize

  • 70 hrs

    Pick 1 prize

Top 3 every week win secret prizes.

Revealed at launch. More shippers, bigger prizes.

?

Something big

2
?

Something crazy

1
?

Something big

3

The weeks

Week 1

Hour Detective

Some projects log way more hours than they worked. Can you catch them?

Tabular classification Starts at launch

?

More weeks coming

Questions

Who can join?
Anyone 13 to 18. It's free.
Do I need to know ML?
No. Every week has a starter notebook and guides.
What do I win?
Free stickers at 5+ hrs. A prize at each checkpoint. Secret prizes for the top 3.
Teams?
Solo only.
When does it start?
When 500 people RSVP. You'll get a Slack ping.

Grab your spot.

RSVP

Hang out in #haggle

Not on Hack Club Slack yet? Join here.

Open #haggle