How do I solve the Orb?

Hint 1 of 8:

Have you examined it, clean it?

Hint 2 of 8:

Then you are inside.

Hint 3 of 8:

If you wait awhile, it might be clearer.

Hint 4 of 8:

This is a chess game.

Hint 5 of 8:

You want white to win, but how?

Hint 6 of 8:

Do you remember the Mural in the Unreal City?  Helene?