How the daily challenge works
Each day, one of the tests is selected and its board is locked to the date. Everyone plays the exact same layout on any device, which is what makes the ranking a fair contest.
- What counts — The daily number (#N) and your streak record only your first completed run of the day. Replays use a fresh board rather than the date-locked one, because replaying a board you have seen would measure memory of the answer, not ability, and a better replay still updates the leaderboard and your personal best.
- Board rotation — A new board goes up at midnight (00:00) every day.
- Reaction time is excluded — A date-locked board would fix the signal timing for everyone, turning a reaction test into a timing-prediction game. So it never appears as the daily.
- Typing is excluded too — its sentences differ by language, so 'the same board for everyone' cannot hold.
Which test comes up
Seven of the nine tests take turns as the daily: Aim Test, Number Memory, Sequence Memory, Visual Memory, Chimp Test, Verbal Memory and Color Match. The rotation runs in a fixed order and the day number picks the entry, so everyone who opens the site on the same date meets the same test. Reaction time and typing sit out, for the reasons above.
The board is built from the date rather than at random, so there is nothing to look up in advance and nothing to reroll. The same rule produces the same layout on every device. That is the part that makes the ranking mean anything: a board generated fresh for each visitor would rank people who played different games and call it a contest.
How the ranking is ordered
Not every test scores in the same direction. On the aim test a lower number wins, because the score is time per target. Everywhere else higher is better: more digits held, a longer pattern repeated, more words called correctly before three strikes. Each board sorts by its own direction, so you never have to work out which way is up.
A tie keeps the earlier submission ahead. If two people post the same score, whoever got there first sits higher. That is the ordinary arcade convention, and it is the only tiebreak that does not require collecting more data about either player.
The daily and challenge links are different things
The daily is one board a day, shared by everyone, running until midnight. A challenge link is the opposite shape: finish any ordinary run, send the link, and whoever opens it plays your exact board with one attempt. The daily is a public queue you join; a challenge link is a private duel between two people.
Daily runs cannot be sent as challenge links. A daily board is already identical for everyone, so there would be nothing to hand over, and the challenge would collapse into "we both did today's test".
Leaderboard rules
- No sign-up — Finish the game, enter a nickname (up to 16 letters, or 8 Korean characters), and you are on the board right away.
- Duplicate nicknames — Submit again under the same name and only the better score stays.
- Public display — Your nickname and score are shown to all visitors. Submit nothing and nothing is shown.
- No resets for now — while the site is young, boards accumulate instead of clearing. Once a board grows past roughly a thousand names, seasonal resets will start, announced here first.
- Every game has a board — each test keeps its own leaderboard, listed together on this page. The daily challenge is the one featured game on top of that.
Abuse prevention
A board without accounts could invite cheating, so the defense is built into the system. Scores no human can physically produce are rejected by the server. Nicknames with profanity or code fragments cannot be registered.
Every submission needs a server-signed token, scores that arrive faster than the game can physically be played are rejected, and rapid-fire requests are throttled. If an abnormal entry still slips through, it is removed individually, and once seasonal resets begin, periodic clearing becomes one more layer of defense.
Frequently asked questions
Why is there no sign-up?
Requiring no account, anywhere, is a principle of this site. A game leaderboard needs no identity — just a name to display.
What if my nickname matches someone else's?
You share the slot, and the better record holds it. Use a name unlikely to overlap if you want the slot to yourself.
When do the boards reset?
For now they do not. Early on, a daily wipe would just mean a permanently empty podium, so entries accumulate. When a board grows past roughly a thousand names, seasonal resets will begin: the change will be announced on this page before it happens.
Do I have to join the board?
No. Your daily result is saved to your personal records whether or not you join. The leaderboard is optional, and skipping it publishes nothing.