concede in trench games

[CanuckSteve]

In trench games, when the outcome of the game is clearly decided, it can still take many rounds to finish the game.

How about a concede button ?

[ender516]

This cannot be done with a tool, and, if you check the Suggestions forum for the site, you will find that a surrender button existed many years ago, was abused, was removed, and will not be coming back.