All of them, except pawns!
Moves in chess are determined by the nature of the pieces and the spaces available for a legal move. Any chess piece can move backwards except for the pawn - and even the pawn can move backwards in a sense, if it reaches the back of the board and is promoted.
Yes you can. With the exception of the pawns, all other pieces can move backwards as well as forwards.
Below is a related link to how the chess pieces move .
All except the pawns.
No , the pawn may not move backwards .
No. Pawns cannot move backwards.
If you can't move any of your chess pieces, it is a stalemate and the game is over.
Kings can move, Queens, Bishops, and also Rooks can move backwards.
Until a pawn is promoted to a queen, rook, bishop or knight, it cannot move backwards.
See the related link below to the rules of chess and how the chessmen move .