MasterChess Game Play Philosophy
MasterChess is geared toward playing games with a focus on improving your strength.
Unlike an actual opponent, MasterChess is “on your side.” It allows you to view engine analysis if you find that helpful. It continues to play if you (or the engine) run out of time. There is no “resign button” as the engine does not care if you move on to another game.
It will continue to play even if the best line for the engine is to repeat the position. (It won’t force you to accept a draw by repetition.)
You can take back moves and resume the game from the diagram position.