The rules of the game had changed and they weren't sure how.

He had to know the rules of the new game.

In some way, the rules of the game had changed.

From the start, the rules of the game were clear.

And we did not play by the rules of the game.

I know the rules of the game better than you.

What he had done was not right, whatever the rules of the game.

But he doesn't even know the rules of the game.

The police were finally learning the rules of the game.

But at least I knew the rules of the game.