Lucky Moment Journal
Write down one lucky or good moment from your day. Check in once a day.
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Challenge · Facts & stats · iChallenge network
Daily facts and stats about luck, chance and the science of probability, plus real challenges to put them to work.
Which plant is a traditional symbol of good luck?
You went

One ranked attempt per day. Practice as much as you like.
Join one, log your days or post your proof. Finishing earns XP and the Finisher badge.
Write down one lucky or good moment from your day. Check in once a day.
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Flip a coin 100 times, tally heads and tails, and post a short write-up comparing the result with 50/50.
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Search a clover patch near you for a four-leaf clover. Post a photo link of what you find.
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Live counts from LuckChallenge.com. All arena stats →
Earned on any arena, shown on your profile everywhere.
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.
Fund a prize on LuckChallenge.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.
Play today's quiz round, post your score, and start a streak.
XP, levels, streaks and badges. Save your progress with an email and it follows you to every arena on the iChallenge network.
Everyone on this arena gets the same five questions each day, from easy to hard. You get one ranked attempt; practice rounds are unlimited.
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.
Yes. Playing, streaks, badges and leaderboards are free. Some challenges carry a sponsor-funded prize; the challenge card shows it when one is funded.