There's no way you can win that game.
4 seconds sound clip from the WarGames (1983) movie soundboard.
You can hear this line at 01:44:51 in the Blu-ray version of the movie.
Quote context
[...]
- Five numbers. It's got half the code.
- One.
- 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?
- Yes. Number of players: Zero.
- Seven!
[...]