I'm making a study about an exchange sacrifice on move 6 against the pirc defense. In chapter 3, I want to be able to start off after the beginning 7 move sequence. I don't want the user to have to play it all out again. I've seen in other interactive lesson studies, such as the ruy lopez one, that they start off with the ruy lopez and the opponent playing the morphy defense or berlin defense. How do I do that?
I'm making a study about an exchange sacrifice on move 6 against the pirc defense. In chapter 3, I want to be able to start off after the beginning 7 move sequence. I don't want the user to have to play it all out again. I've seen in other interactive lesson studies, such as the ruy lopez one, that they start off with the ruy lopez and the opponent playing the morphy defense or berlin defense. How do I do that?