This should explain it....
https://support.chess.com/article/642-what-are-premoves-and-how-do-they-work
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not opening it says privacy error. pls give steps to do
Link works fine for me, but OK....
Another way to move that is popular in blitz and bullet games is pre-moving. This is when you make your move *before* the opponent has taken their turn!
To do this, make sure you have pre-moves enabled in your Settings, under Live Chess, in the 'Play' tab:
When pre-moves are enabled, while it’s the opponent’s turn you can make a move to automatically be played as soon as they make their move. To do this, simply move the piece as if it were your turn. The move will be highlighted in red on the board.
how to enable premove here while playing bullet