We interpret other people’s moves and actions from how it affects the chess board from where we sit.
If the move is threatening, then the person is threatening and possibly an enemy. An enemy is immoral, in our minds, if our actions and intentions are moral.
Thus we make the first mistake of misunderstanding. Judging another’s actions by our own position.
Another’s actions, to be truly understood, need to be judged from their side of the table and the logic and necessity driving their decisions – however unpleasant to us.