Difficulty distribution
Weighted scoring makes technically deeper questions matter more without hiding how the bank is structured.
DTF Game Hub · Source-backed plant-science challenge
High IQ — Test Higher Cognition
Build a challenge from the approved High IQ production bank, lock in an answer, then learn from the explanation, wording context, and verification records behind it. The game tracks mastery, missed questions, personal history, and repeat improvement on your device.
Daily 10 uses a date-seeded question order from the verified bank; no account is required.
Approved production bank
Difficulty-weighted scoring
Missed-question review
Visible verification sources
Challenge console
Build your High IQ run
Loading verified question data…
Choose how you want to be tested
Balanced Mix spreads a run across matching topic and difficulty buckets. Random Mix fully shuffles the filtered pool. Daily 10 creates the same date-seeded ten-question challenge for everyone using the current dataset.
Keyboard: A–D or 1–4 selects · Enter locks or advances.
Progress1 / 10
Score0 pts
Streak0
Accuracy—
Select the best answer, then lock it.
Learning review
Why the wording matters
View verification sources
Challenge complete
Your High IQ score
Accuracy—
Best streak0
Personal best—
Rank
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Topic mastery
Weighted score by topic from this run. Harder questions contribute more points.
Best next study move
Open THC LearnMissed-question review
Every miss stays attached to its explanation, context note, and source records so the result screen doubles as a study session.
Recent runs on this device
Stored only in this browser. No account or server profile is required.
Verified question bank unavailable
The production data route did not return the expected JSON. Retry the DTF-hosted bank first. The legacy external build remains rollback-only.
Knowledge map
What High IQ actually tests
The current bank spans plant systems instead of repeating strain trivia. Counts below are generated directly from the production manifest.
Source mix
The source registry combines peer-reviewed literature, university extension material, government resources, and foundational plant-science references.
Quality model
Questions that teach after the guess
Approved question bank
The v2.2 bank is machine-validated for IDs, answer mappings, status, audit state, source references, category counts, and difficulty distribution.
Balanced or random runs
Balanced Mix spreads questions across matching topic and difficulty buckets. Random Mix keeps the classic fully shuffled experience.
Explanation-first feedback
Every production question includes an explanation and context note, so a miss becomes a short lesson instead of a dead end.
Visible verification
Source records are attached to questions and shown after an answer is locked. High IQ makes its evidence trail inspectable.
Educational use
High IQ is an adult educational game. Plant-health and cultivation questions teach general principles and diagnostic reasoning; they do not replace legal, medical, electrical, pesticide-label, laboratory, or workplace-safety guidance.