Brainmaxxing. Unlock your full brain.
Calibrating
—
IQ estimate
unrated
—
of everyone
—
of Brainmaxx players
7085100115130145

Rated like chess, styled like the IQ scale — 100 is average. A game estimate, not a clinical measurement.

Daily challenge

Five fresh puzzles at your rating. One attempt a day — the streak is the cure for brainrot.

Campaign ★ 0
Level 1
Duel a friend
Same five puzzles, same seed. Fastest sharpest mind wins.
Brain level
1
0 / 100 XP
Win streak
0
duels won back to back
Hot streak record
0
correct answers, back to back
Neurons flexed
0
total brain reps
Trophy shelf
0 / 14
flex-worthy achievements
Brain drip
For entertainment and training — not a clinical IQ measurement.
Level 1
0:00

XP earned+0
Rating →
Standing

Level map

Play in order, or jump straight into the deep end — harder levels move your estimate much faster. Bravery is statistically rewarded.

The arena

Duel rating
1000
0won
0drawn
0lost
Fighting as Anonymous mind
Quick match practice opponents

Get matched with an opponent at your rating and race them through five random puzzles. One winner.

Bots race you live and are labelled as such. Humans play their five whenever they like — you both get the same puzzles, and the winner is settled when the second one finishes.
Challenge someone

Play five puzzles, then send the link. They face the exact same five — your times become the ghost they're racing.

Level 12
Sending now hands them a link straight away — you both play whenever you like. Playing first means they race your times as a ghost.
Answer a challenge

Got a link or a code? Paste it here — challenge codes start the match, reply codes settle one you sent.

Touch Grass

Short games with no ladder, no lives and nothing to lose. Your rating cannot go down in here — the only thing at stake is a high score.

High scores
0 score

Players

Challenges

Everything you've sent and everything waiting on you. Finish your side whenever — they play theirs whenever.

Waiting on you
Waiting on them
Recently settled

Your profile

Your name

Shown in duels and, once leaderboards go live, next to your rating.

Anonymous mind
Account not created

Your data

Everything Brainmaxx knows about you lives on this device. You can take a copy or wipe it — no request form, no waiting.

The legal bit

Privacy Policy · Terms of Service
Questions about your data: privacy@brainmaxx.gg

Standings

Where you sit — against the general population, and against the people who play this game.

vs everyone
—
of the general population, modeled on the standard IQ curve (mean 100, SD 15)
vs Brainmaxx players
—
of the player field — people who choose to train are a sharper crowd
Your daily record
Global leaderboard live

Every registered player, ranked by duel Elo, with their IQ estimate and levels cleared.

About the percentile above

The player-field percentile is still a model of the Brainmaxx population centred at mean 107, not measured data — there are not yet enough calibrated players to compute it honestly. The leaderboard above, by contrast, is real.

Trophy shelf

0 of 14 collected — the shelf won't fill itself

About Brainmaxx

Brainmaxx is a training ground for the skills IQ tests measure: pattern recognition, rule induction, trend-finding and planning. Every puzzle is procedurally generated — no two runs are alike, so you can never memorize answers, only get genuinely better. Think of it as a gym for your gray matter: short sessions, honest feedback, and a rating that moves the way chess ratings do.

What's inside

What is IQ?

IQ — the intelligence quotient — is a score from standardized tests of reasoning: spotting patterns, working with abstract rules, and solving unfamiliar problems. It doesn't measure knowledge; it measures how you handle something you've never seen before. That's exactly what this game generates: puzzles you can't have memorized.

How it's measured

Scores sit on a bell curve with the population average defined as 100 and a standard deviation of 15. About 68% of people land between 85 and 115; roughly 1 in 7 reach 115–130; about 1 in 50 pass 130 — Mensa's entry bar is the top 2% — and 145+ is about 1 in 1000. The matrix puzzles here are modeled directly on Raven's Progressive Matrices, the most culture-neutral format ever devised.

Can you train it?

Honest answer: training makes you dramatically better at the skills — rule induction, trend-finding, classification, planning. Whether that fully transfers to your "true" IQ score is debated. But the skills transfer everywhere:

Yes, the names are jokes. The puzzles are not — every one of them is a standard reasoning format, and the plain name is printed next to the silly one everywhere it appears.

Your estimate in this game

Your rating uses an Elo system — the same math as chess ratings. Every puzzle is an opponent whose strength matches its level. Beat harder puzzles, gain more; miss easy ones, lose more. The range narrows as you play, because more answers mean more evidence. It's calibrated to feel like the IQ scale, but a real IQ score requires a proctored test.

Two percentiles, and an honest caveat

You're shown where you sit twice: against the general population (the standard curve, mean 100, SD 15) and against Brainmaxx players. Those differ a lot — people who choose to train reasoning are a sharper-than-average crowd, so the same score is rarer in the world than it is here.

The honest caveat: until online play ships, the player-field percentile is a model of that population (centred slightly above average), not measured data from real players. It's labelled as an estimate everywhere it appears, and it gets replaced by real numbers the moment there's a server counting them.

How duels work

Every puzzle here is generated from a seed, and the same seed produces exactly the same puzzles for everyone. So a duel is just a shared seed: you play five, your run is packed into a link, and whoever opens it faces those same five puzzles while racing your times as a ghost. More correct wins; a tie breaks on total time.

Duel rating is a genuine chess Elo (K-factor 40 while provisional, then 24) kept separate from your IQ estimate — beating someone far stronger moves it a lot, beating someone weaker barely moves it. Duels sent through a shared link are self-reported, which is fine for friendly play; challenges sent to a registered player are settled by the server.

Quick match and sparring bots

Quick match pairs you with an opponent within 80 points of your duel rating and races you through five random puzzles pitched at that level — one winner, decided on correct answers first and total time as the tiebreak.

Right now those opponents are bots, and the game labels them as such everywhere they appear — in the match card, the race bar, your duel history, and anything you share. They're not fake people: each one is a rating and a play style, and its run is simulated from the same Elo maths the rest of the game uses, then replayed live so you watch it solve alongside you. Sparring moves your rating at half weight, so the ladder still mostly reflects matches against real humans.

Challenging a real person

Challenge a human in the arena lists everyone who has signed up, online first, and sends the chosen opponent a challenge at whatever difficulty the slider is set to. Neither of you has to be at the keyboard: you each play your five whenever you like, and the result is settled by the server the moment the second player finishes. Because both sides get the same seed, they get literally the same five puzzles.

Those results are settled server-side rather than self-reported, so unlike a link-and-code duel between friends they move both players' ratings by the real Elo maths with nothing to take on trust.