The viewer makes the first move. When it’s the AI’s turn, the computer sketches out possible moves (often several steps in the future) on the screen before it makes its decision. Orange curves represent the computer’s possible moves, green ones are moves the viewer could make, with the brighter lines being the best moves.
That’s nice I guess. I was hoping for a little more inner monologue:
Computer: “Yes humanoid idiot, just keep winning those little pawns while I reprogram your microwave to superheat your food to lethal levels! MWAH HA HA HA!”