Accept or decline a challenge

When someone challenges you, you can answer at once or later.

1. When a friend challenges you, Choue asks you at once, with the match's settings.

2. Not now puts it off. Decline turns it down, and Accept takes it.
3. The challenge waits in My games on Play a human. The Play a human tile counts it.

4. Accept it there when you are ready.
5. Your friend confirms, and the match opens for both of you.