Left and middle panel: count distribution of LMC SNRs as function of N_OB and r. The distribution for the SNRs with a secured CC classification is shown with the hatched boxes; that for type Ia SNRs is outlined in red. The whole sample is shown by the solid grey histograms. Right panel: r–N_OB diagram of LMC SNRs. Secured Ia and CC SNRs are marked by red triangles and blue squares, respectively; the rest of the sample is shown with black dots. The arrow in the lower left corner indicates an SNR with N_OB= 0. The regions corresponding to different “Hint-SFH” and “Hint-CMD” are marked by the gridding.