Initial performances of "Boris Godunov" featured significant cuts. The entire Cell Scene was cut from the first performance, not, as is often supposed, due to censorship, but because Nápravník wished to avoid a lengthy performance, and frequently cut episodes he felt were ineffective. Later performances tended to be even more heavily cut, including the additional removal of the Kromï scene, likely for political reasons (starting 20 October 1876, the 13th performance). After protracted difficulties in obtaining the production of his opera, Mussorgsky was compliant with Nápravník's demands, and even defended these mutilations to his own supporters.