Observed arrival · 2026-09-08
Mindproof, an IQ trainer that shows its uncertainty
An adaptive IQ test gives you a score with a confidence range, then turns the rules behind your mistakes into targeted practice.
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Field notes
Mindproof organizes performance into seven separate reasoning categories rather than one undifferentiated ability score. Its puzzles are generated from seeds and retain the rules used to make them, allowing missed patterns such as shape cycles or mirror detection to become practice cards in the Rule Codex. The site also describes seeded ten-puzzle duels, a date-based daily puzzle, and a confidence interval that narrows across repeated tests.
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○OpenPublic substance visible
$PaidCommerce or pricing visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
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