What happens when a pawn reaches the other side of the board?
B · Beginner · The board and the pieces · 5 of 10A pawn that reaches the furthest rank must be exchanged, as part of the same move, for a queen, rook, bishop or knight of its own colour. The choice is free. It does not depend on which pieces have been captured, so a player can have two queens or more.
How it works
- Compulsory: the pawn cannot stay a pawn and cannot become a king.
- Free choice: "The player's choice is not restricted to pieces that have been captured previously."
- At once: "the effect of the new piece is immediate", so it can give check straight away.
- How to do it: the pawn need not be placed on the last square first, and removing the pawn and placing the new piece may be done in either order.
- When the choice is final: when the new piece has touched the promotion square.
- No spare piece to hand: the player may pause the clock and ask the arbiter for one.
- Forgetting to swap: a pawn left on the last rank after the clock is pressed is an illegal move, and the pawn becomes a queen.
The glossary has the promotion, the pawn, the queen, the knight, the illegal move and the arbiter.
Tricky cases
A player still has their queen. Can they promote to a second one?
Yes. The choice is not limited to captured pieces.
A player promotes by turning a rook upside down and calling it a queen. Is it a queen?
No. Under the Laws a piece is what it is, so an upturned rook is a rook. The right course is to pause the clock and ask the arbiter for a queen.
A player pushes the pawn to the last rank and presses the clock without changing it. What happens?
It is an illegal move. The pawn is replaced by a queen of the same colour, and the usual penalty for an illegal move applies. The player loses the choice of piece.
Why would anyone choose a knight over a queen?
It depends on the position. A knight moves in a way a queen cannot, so now and then it gives a check or a fork that a queen would not, or avoids stalemating the opponent.
Why the rule exists
A pawn that has crossed the whole board has nowhere left to go, and the rule turns that dead end into the pawn's reward. It is why a single extra pawn can decide a game: every pawn is a possible queen.
Where it differs
| Where | What changes | Source |
|---|---|---|
| Pawn reaches the furthest rank | Must become a queen, rook, bishop or knight | FIDE Laws 3.7.3.3 |
| Choice of piece | Final once the piece touches the promotion square | FIDE Laws 4.4.4 |
| Pawn left unpromoted and clock pressed | Illegal move; the pawn becomes a queen | FIDE Laws 7.5.2 |
| Piece not available | Player may pause the clock for the arbiter | FIDE Laws 6.11.2 |
From the rule book
FIDE, Laws of Chess (approved 7 August 2022, applied from 1 January 2023), Articles 3.7.3.3 to 3.7.3.5, 4.4.4, 4.6, 4.7.3, 6.11.2 and 7.5.2. Checked 14 October 2026. Official document: FIDE Laws of Chess taking effect from 1 January 2023 (FIDE Handbook E.01).