iChallenge.comAn eCorp Venture 1 Guest0

1,704 arenas · one profile

Pick an arena. Play today's round.

iChallenge is a network of free challenge arenas, from code to climate to fitness. Five questions a day, a streak that follows you everywhere, weekly leagues and challenges worth finishing.

Warm-up questionNot ranked · tap an answer

How many small squares are in a standard sudoku grid?

Level1Rookie
XP
Play a round to earn XP
Streak0days
LeagueBronzeweekly
Confident man posing in studio holding a shiny trophy, showing pride in accomplishment.
Photo: RDNE Stock project / Pexels
Daily #7Resets at midnight UTC

Today's round

  • 5 questions
  • 20s each
  • 0 played today

One ranked attempt per day. Practice as much as you like.

Arenas to play now

Every arena has its own daily round and leaderboard. Your level and streak count on all of them.

Art & Creative UXChallenge.com 11 playing this week Play → Coding RGBChallenge.com 2 playing this week Play → Challenge CAChallenge.com 1 playing this week Play → Challenge ClickChallenge.com 1 playing this week Play → Coding DatabaseChallenges.com 1 playing this week Play → Family HalloweenChallenge.com 1 playing this week Play → Cooking & Food MilkChallenge.com 1 playing this week Play → Challenge PRChallenge.com 1 playing this week Play →

Browse by topic

Challenge503 arenasGeography153 arenasCoding102 arenasAI96 arenasHome & Property86 arenasEducation76 arenasSports66 arenasArt & Creative65 arenasStartup62 arenasHealth41 arenasMarketing40 arenasCooking & Food39 arenasTrivia37 arenasFinance37 arenasCrypto37 arenasClimate & Green32 arenasNature & Outdoors25 arenasProductivity24 arenasFamily22 arenasFitness22 arenasCivics18 arenasDrinks17 arenasImpact16 arenasOcean & Marine16 arenasMusic15 arenasScience12 arenasHistory11 arenasSpace8 arenas

Leaderboard

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How it works

  1. Play the daily roundFive questions, easy to hard, 20 seconds each. Speed and combos add points.
  2. Keep your streakPlay any arena each day. Every 7 days earns a freeze that covers a missed day.
  3. Climb your leagueEach Monday the top 20% of your league move up to the next one.
  4. Finish challengesLog streak days or post proof. Some challenges carry a sponsor-funded prize.

Badges

Sixteen to collect across the network.

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.