- Put X in the center square.
- I know.

4 seconds sound clip from the WarGames (1983) movie soundboard.

You can hear this line at 01:44:37 in the Blu-ray version of the movie.

Quote context

[...]

- You're in.

- Order to disarm the missiles.

- No. No.

(Buzzer sounds) (3)

- Five numbers. It's got half the code.

- One.

- Put X in the center square.

- I know.

- Six up.

- There's no way you can win that game.

- I know that. It doesn't. It hasn't learned.

- Is there any way to make it play itself?

[...]