Observed arrival · 2026-09-03
Backsolved Checks the Maths You Make in a Case Interview
A written consulting-style case interview that recomputes every number against a fixed answer key, then delivers a detailed arithmetic and reasoning report.
Field notes
Each case reportedly stores its figures, drivers, and acceptable tolerances before the candidate begins, allowing equations to be recomputed rather than judged by a language model’s agreement. The sample retail-banking report identifies a 100× margin error, compares a claimed $50M increase with the case key, and marks a 9% default-rate estimate against a 7.4% ground truth. The page says the session takes roughly 30–40 minutes and includes a full transcript annotation.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
One card from the complete issue