Bolometric light curves of model W18x-2 and two additional models W18x-2m and W18x-2b compared with the observations of SN 1987A obtained by Catchpole et al. (1987, 1988; open circles) and Hamuy et al. (1988; open triangles). Model W18x-2m is constructed on the basis of model W18x-2, where both ⁵⁶Ni and hydrogen are mixed artificially to match the observations as well as possible. Outward ⁵⁶Ni mixing up to 3500 km s⁻¹ and inward H mixing of 0.26 M_⊙ into the He core result in a good fit. Model W18x-2b is similar to model W18x-2m, but the bulk of ⁵⁶Ni is mixed up to the observed velocity of about 3000 km s⁻¹. The two additional models W18x-2m and W18x-2b have the unchanged initial ⁵⁶Ni mass of model W18x-2.