What does underpromotion mean in chess?
Emma Martin
Published Feb 21, 2026
What does underpromotion mean in chess?
Definition of underpromotion : the promotion of a pawn to bishop, knight, or rook in chess.
Why would you ever underpromotion chess?
Underpromotion often serves as a reminder to one’s opponent that it is past time to resign. An extreme case of underpromotion is shown here
When should you Underpromote in chess?
We normally do underpromotion to avoid stalemate, or, may want to promote to a knight to do a knight fork, or possibly checkmate. I’m pretty sure the vast majority of underpromotions here are for fun i.e. underpromoting unnecessarily. There is also one other reason an underpromotion is viable.
Can a pawn turn into a queen?
Queening: When a white or black pawn reaches its promotion square, players can exchange it for a queen, the most powerful piece in a chess game, of their respective color. This type of promotion is known as “queening the pawn” or “queening.”
Can you have 3 queens in chess?
Yes, it is perfectly legal to have multiple queens. One can either borrow a Queen from another set or turn a Rook upside down.
What happens if pawn reaches other side?
If the Pawn reaches the opposite side of the chessboard, it has the unique ability to promote to another piece. The pawn can become a Queen, Bishop, Rook, or Knight. There are no restrictions to how many pieces of a given type you can have via promotion.
Why do bishops have a cut?
Why do chess bishops have a cut on top? There’s definitely truth in the old war elephant story as the bishop didn’t exist in Shatranj but war elephants did. Thus, the original pieces were shaped like the trunk of one of these war elephants and the slash across the top was meant to symbolize the opening of the trunk.
Which is the only piece on a chess board that Cannot check a king?
Black’s king cannot move to squares under attack by the white bishop, knight, queen, or pawn. Since White is checking Black, and Black can neither move, capture the checking piece, nor block the check, Black is checkmated.
Can you have 4 queens in chess?