How to play
No formulas. No calculator. Just a little curiosity.
Look
Watch the drop from above, then the camera pulls back. Once objects settle, you have 15 seconds. Drag or use the arrow keys to explore.
Guess
Enter a whole number from 0 to 5000. Time running out locks your guess, then objects are counted out. After a short result pause, the next round starts automatically.
Discover
Watch the count, see your grade, and compare all five rounds at the end. Each round earns up to 100 points. Shared results never reveal the answers.
Three ways to surprise yourself.
Does everyone get the same puzzle?
Yes. Everyone gets the same five rounds for each UTC date. New puzzles arrive at 00:00 UTC. Object types and containers rotate daily, with no identical lineup on consecutive days.
How does scoring work?
A guess of 90 when the answer is 100 earns 90 points. In Compare, choose the correct side first, then estimate the difference. The wrong side scores zero.
Will I lose progress if I leave?
No. Your progress is saved in this browser. The observation timer continues while you are away. Clearing browser data removes your records.
How do streaks work?
Complete all five daily rounds to extend your streak. A perfect score is not required. Archive and practice games do not affect streaks, and replaying a day never counts twice.
Can I play on my phone?
Yes. Touch controls, sound and reduced motion are supported. If 3D is unavailable, a lightweight scene takes over. Core actions also work with a keyboard.
How do I challenge a friend?
Open Create a challenge. Choose a container, object, color, count and time, then copy the link. Your friend can play the same puzzle without signing up.
That is all. Time to trust your eyes.
Start daily challenge