Advanced · Advanced · 6 rounds · ~8 min · free with an account
Cut Hallucinations: Grounding, Sources, UNKNOWN
Production-grade hallucination prevention via citation-or-refuse + admit-uncertainty + claim triage.
Prompt Arcade · 6 rounds · free with an account
Cut Hallucinations: Grounding, Sources, UNKNOWN
Models fill gaps with confident guesses. Give them the source, tell them to answer only from it, require citations, and give them a safe way to say 'I don't know'.
- Spot it
- Build it
- Match it
- Order it
- Spot it
- Build it
Five games are open to everyone — start with Prompting Mindset 101. The other 31 need a free account (no card) so your scores and progress are saved.
What you'll learn
- Unsupported claims: Check every claim against the source. Invented details look just like real ones.
- Ground it: Source + citation + a permitted 'I don't know'.
- Same question, three setups: The fallback rule is what turns guesses into honest gaps.
- Grounded answer recipe: Source → question → quotes → UNKNOWN.
- Risky prompts: Asking for facts the model can't have invites fabrication.
- Verify claims: Never publish a number you haven't traced to a source.
More advanced games
Self-Consistency VotingRun the same prompt 3-5 times → take the majority answer. +12-18% accuracy on reasoning tasks (Wang et al. 2022).Few-Shot Pattern RecognitionShow 2-4 examples → the model maps the relational structure, not the surface details (Chase & Simon's chess masters, applied).Constraint CalibrationToo few constraints → drift. Too many → brittle. The 5-constraint sweet spot and how to find it.