{"id":"surface-area-forward-neighbor-no-double-count","text":"Grid adjacency problems use a forward-only neighbor check (right and down only) so each adjacent pair is processed exactly once, preventing double-counting of shared faces or edges.","truth_value":"IN","source":"entries/2026/06/06/surface-area-of-3d-shapes-solution.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"surface-area-forward-neighbor-no-double-count","truth_value":"IN","reason":"premise"}]}}