In his video IM Lawrence Trent presents the ideas and differences between the Steinitz Defence (3...d6) and the Steinitz Defence Deferred. He points out that Black can play exciting lines, which can serve as very good, surprising weapons in the opening. In all these variations White must be well prepared in order to fight for an advantage.
Below you can have a closer look at the variations presented in the video by replaying the moves on the board. You can also introduce your own moves and analyse them with the help of the engine.