Two solved examples hide a rule. Crack it and answer before your rival. Best of 5. Free in beta.
Every round shows two solved examples: an input grid and its output. They share one hidden rule.
Deduce the rule — mirrors, rotations, gravity, shifts, color cycles. No text, no hints, pure pattern logic.
Apply the rule to a new input and pick the right answer before your opponent. First to 3 rounds takes the duel.
Guided training for every mode · Ranked PvP with Elo ratings · Friend challenges & best-of-3 tournaments · Bot duels that scale with your rank
Correct answers never leave the server. Round times are measured server-side. There is nothing useful to read in the client — cheating tools have nothing to find.
ARC-style abstract pattern reasoning — the kind of puzzle language models still struggle with. Your raw pattern intelligence is the only weapon.
Pure visual logic. The interface speaks 13 languages, but the puzzles speak none — anyone on Earth can duel anyone.
Separate IQ ratings for bot duels and ranked PvP. Win duels, earn IQ, climb from Drooler to Singularity.
SYNAPSE is a free 1v1 logic duel game played in the browser. Each round shows two solved examples of a hidden visual rule (input → output). You crack the rule and pick the correct output for a new input — before your opponent does. Best of 5 rounds wins.
Yes — completely free while in beta. No ads, no paywall, no pay-to-win. Just sign in with Google and play.
No. SYNAPSE is language-free by design: puzzles are pure visual patterns. The interface is translated into 13 languages — English, Spanish, Chinese, Hindi, Arabic, Portuguese, Russian, French, German, Japanese, Indonesian, Turkish and Serbian.
Ranked PvP matches you with another player solving the same puzzles live. The faster correct answer wins each round; best of 5 wins the duel. Your PvP IQ uses the Elo rating system, separate from your bot-duel rating.
Yes. Add friends by username, send casual challenges, rematch instantly, or play best-of-3 tournament series — friendly matches never touch your rating.
Correct answers never leave the server, answer times are measured server-side, and every puzzle is machine-verified to have exactly one human-recognizable rule. The client has nothing worth hacking.
We're in beta: one tap to join, no passwords to leak, and it keeps multi-account abuse away from the leaderboards. More sign-in options are planned.
Yes — SYNAPSE runs in any modern browser on phone, tablet or desktop. No download, no install.
Not well. SYNAPSE puzzles are ARC-style abstract reasoning tasks — the kind AI models still struggle with. That's the point: it measures raw human pattern intelligence.
Yes, any time — Settings → Delete account removes your account; per-round gameplay statistics are anonymized. Details in our Privacy Policy.