user20128: I am asking this because Stockfish was accepting different FEN strings through the terminal inbetween a game, of which it is giving best moves. I have compiled Stockfish in the Ubuntu 19.04 terminal.

user12873: In Chessbase you can have Stockfish analyzing/playing in multiple boards. It's definitely possible to do this, but it slows Stockfish down since it's being overworked. So it'll take longer to search ahead in each game.

20128: <p>I am asking this because Stockfish was accepting different FEN strings through the terminal inbetween a game, of which it is giving best moves. I have compiled Stockfish in the Ubuntu 19.04 terminal.</p>
 12873: <p>In Chessbase you can have Stockfish analyzing/playing in multiple boards. It's definitely possible to do this, but it slows Stockfish down since it's being overworked. So it'll take longer to search ahead in each game.</p>
