{"id":"shift-grid-flatten-rotate-reshape","text":"The 2D grid shift is implemented by flattening to 1D, rotating via Python slice (`flat[-k:] + flat[:-k]`), and reshaping back — the canonical idiom for cyclic 2D shifts that avoids manual index arithmetic.","truth_value":"IN","source":"entries/2026/06/06/shift-2d-grid-solution.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"shift-grid-flatten-rotate-reshape","truth_value":"IN","reason":"premise"}]}}