GRIP Five-Level Validation Summary — occluded_pattern Images checked: 3000 Questions checked: 15000 Base geometry/Levels 1-4: PASS Level 5 independent validation: PASS Total mismatches found: 0 Summary: PASS Dataset: occluded_pattern Images checked: 3000 Level 5 questions checked: 3000 Total mismatches found: 0 Level 5 templates: remove_occluder_extend_pattern: 3000 Summary: PASS