Last Control
Sign in · Operator entrance
Free number sequence puzzles. The output follows a rule.
Five series pulled from the production logs. Constant steps, ratios, growing increments, sums, interleaved lines — the rule is never stated. The next entry is yours to predict. A fresh set is generated on every load; memorising answers gets you nothing. Free, in the browser, no sign-up.
No download. No account. Five series, under two minutes. The rule is revealed after each answer.
The full audit runs in the game. Free. Anonymous until you claim a seat.
Frequently filed questions
Are these number sequence puzzles free?
Yes. Free, browser-playable, no sign-up, no download. Five series, scored on the spot, and the score stays on this page.
How are the puzzles generated?
Fresh on every load. Constant steps, ratios, growing increments, sum-of-the-previous-two, and interleaved series — the numbers are randomized each visit, so no two audits file the same set and memorised answers are worthless.
Do I get the answers?
Yes. After every attempt the rule behind the series is revealed — right or wrong. The protocol withholds the rule only while you are answering.
Is this a real cognitive or medical assessment?
No. It is a game. The rating is a game score for entertainment — it does not measure intelligence, diagnose anything, or stand in for any professional assessment.
What is Last Control?
A multiplayer browser game in which you run a base of workers under a protocol that audits everything — including you. The full 60-second cognitive audit at game.last-control.com is the entrance.