Although there are no plot similarities, the title is taken from the original 1967 original series episode "Checkmate".

2: More Village, means that our way of life is becoming the very consciousness of the universe. I exaggerate of course, but only slightly.

2: There's something inside Six that refuses to be unlocked. And perhaps the prospect of death will unlock him. Death unlocks us all.

11-12: Does your mother care for you, Six? Mine does. I believe she does.
6: Only a mother can destroy every ounce of hope in ya.

6: I'm human. I have a thousand flaws. I break down, I get up, i don't get up. I get lost, I make the same mistakes over and over. I have scars and wounds. Sometimes when I can't bear them anymore, I... I drink. You can't fix me. You can't fix any of us. You can't make us perfect.