Someone quit during a Training Mode game. Can't skip him. How to end the game?

[Starwarrior1128]

I am Table Admin but I can't seem to find a button to end the game. And the player is not responding at all. And we can't skip him since no time restrictions because it's a Training Mode game. Seems like a big oversight on BGA's part. Please advise. Thanks.

[Jest Phulin]

This is precisely the reason the warning is presented when a training mode game is started, that it should only be played with trusted users.

As far as I know, there is no way to force the end of the game. However, after a certain amount of time with no moves, the game will close automatically. I think this is 30 days for turn-based games, and 24 hours for real-time games. But I am not confident in those time.

[dschingis27]

When you are in the game, you find a menu in the top right corner (3 horizontal lines). In that menu, you find the option "Leave game" and that's what you are looking for.
As far as I know, this option exists always in every game (leading to a Karma penalty in ranked games, and being without consequences in Training games).