Proof+250 XP
Trace a Supply Chain
Pick one item in your kitchen and write out every step it likely took to reach you. Post the write-up.
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Challenge · Facts & stats · iChallenge network
The Chain Challenge
Daily facts and stats about chains of all kinds: food chains, supply chains, chain reactions and mountain chains, plus real challenges to put them to work.
Warm-up questionNot ranked · tap an answer
Armor made of small linked metal rings is called what?
Chain mail was widely used in medieval Europe.
Level1Rookie
XPPlay a round to earn XP
Streak0days
LeagueBronzeweekly
Daily #17Resets at midnight UTC
Today's round
- 5 questions
- 20s each
- 0 played today
One ranked attempt per day. Practice as much as you like.
Challenges
Join one, log your days or post your proof. Finishing earns XP and the Finisher badge.
Proof+250 XP
Backyard Food Chain
Observe a park or garden and draw a food chain of at least four living things you saw. Post a photo link.
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Streak · 10 days+200 XP
10-Day Don't Break the Chain
Do one small habit every day and mark an X on a calendar to build a chain. Check in once a day.
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By the numbers
Live counts from ChainChallenge.com. All arena stats →
Facts in the pack12
Visitors, 30 days13
Leaderboard
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Badges
Earned on any arena, shown on your profile everywhere.
First RoundFinish your first daily round.
FlawlessAnswer every question in a round correctly.
LightningA perfect round in under 25 seconds.
On a RollPlay 3 days in a row.
Week WarriorPlay 7 days in a row.
UnbreakablePlay 30 days in a row.
ExplorerPlay daily rounds in 5 different arenas.
GlobetrotterPlay daily rounds in 25 different arenas.
PolymathPlay daily rounds in 5 different topics.
In the ArenaJoin your first challenge.
FinisherComplete a challenge.
RecruiterInvite a friend who finishes a round.
CaptainInvite 5 friends who finish a round.
PodiumFinish a day in an arena's top 3.
ChallengerReach level 10.
Profile SavedSave your progress with an email.
Save your progress
Add your email to keep your level, streak and badges if you switch devices, and carry them to every iChallenge arena. One email when you save; no spam.
Put a prize on a challenge
Fund a prize on ChainChallenge.com and your brand sits on the challenge card, the leaderboard and every finisher's share. Prizes only appear once they're funded, so players can trust what they see.
- Pick the challenge and the prize
- We review entries before a funded prize is awarded
- You get finisher and engagement numbers after it closes
Current sponsors
Questions
Do I need an AI background?
No. Quizzes start with fundamentals; challenges scale from prompting to building.
Where do scores live?
On this site's public leaderboard — post a score and claim your rank.
How does the daily round work?
Everyone on this arena gets the same five questions each day, from easy to hard. You get one ranked attempt; practice rounds are unlimited.
How is my score calculated?
100 points per correct answer, up to 50 more for answering quickly, a combo multiplier for answers in a row, and 150 bonus points for a perfect round.
Is it free?
Yes. Playing, streaks, badges and leaderboards are free. Some challenges carry a sponsor-funded prize; the challenge card shows it when one is funded.