ReasoningTrap: diagnosing reasoning rigidity with doctored variants of famous puzzles
math_rachel · x · 2026-10-19
A fragment from Rachel Thomas's thread introduces ReasoningTrap, a diagnostic dataset of math problems and puzzles intentionally designed to closely resemble well-known challenges but modified through careful variations. The accompanying paper argues "reasoning rigidity" — a problematic reliance on familiar reasoning patterns where models override understood conditions in favor of familiar templates — is distinct from hallucination or prompt brittleness.
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