Several experiments on Superphénix are used to compare calculations and measurements for various control rod configurations that show salient spatial effects: 1. “local criticality” configurations (i.e., in a subcritical reactor with all rods inserted, adjacent control rods are successively withdrawn up to criticality) 2. criticality achieved with one control rod curtain up and the other remaining fully inserted 3. “handling error” configurations (i.e., all rods inserted except one, which is supposed to be replaced by a fuel subassembly). These experiments and their analysis are described. The calculation-to-experiment comparison shows a good agreement.