Allow setting an initial board configuration by specifying a set of moves to make before letting mcts play.
Allow setting an initial board configuration by specifying a set of moves to make before letting mcts play.

PiperOrigin-RevId: 272414125
Change-Id: Iaf08feed7b0dfcf66ef6f602cd7a2597a51ad0cc

deepmind/open_spiel,deepmind/open_spiel,deepmind/open_spiel,deepmind/open_spiel,deepmind/open_spiel,deepmind/open_spiel