How Does Pawn Promotion Work?
When a pawn reaches the last rank (the 8th rank for White or the 1st rank for Black), it must be promoted to another piece. This is one of the most exciting moments in chess. Here is everything you need to know.
The basic rule
When a pawn reaches the last rank, it must immediately be replaced by a queen, rook, bishop, or knight of the same colour. You cannot leave it as a pawn. You cannot promote to a king. The promotion happens on the same move as the pawn's advance to the last rank.
Why queen is usually best
The queen is the most powerful piece, so promoting to a queen ("queening") is almost always the best choice. However, there are situations where promoting to another piece is better, this is called underpromotion.
Underpromotion
Promoting to a rook, bishop, or knight instead of a queen. Common reasons:
- Knight promotion: to deliver a fork or check that a queen cannot. This is the most common underpromotion.
- Rook promotion: to avoid stalemate (a queen might create stalemate, but a rook leaves breathing room).
- Bishop promotion: extremely rare, used in some endgame studies.
Can you have two queens?
Yes! There is no limit to how many pieces of any type you can have. If you promote multiple pawns to queens, you can have 2, 3, or even 9 queens on the board. In practice, having two queens usually guarantees a quick checkmate.