Ponderchess / Special moves

Promotion and underpromotion

Turn a pawn's last step into the right new piece.

Reach the farthest rank with your pawn.

Choose a queen, rook, bishop, or knight.

Check the position before automatically choosing a queen.

See the idea come to life.

Watch the animation, or choose a scene to study the board at your own pace.

Setting up the board…

Rule

Promotion in 3D

Theatre

A pawn that reaches the far rank must be promoted, on the same move, to a queen, rook, bishop or knight.

White moveBlack moveThreatSupport / safe squarePlan

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Now make the move.

Choose an exercise. A hint is there when you need one.

Preparing your chess set…

Click or drag to move · Arrow keys + Enter to play

Your turn · white to play

Promote to a queen

Push the pawn to e8 and promote it to a queen.

Select a piece, then its destination. Switch to 2D for a clear overhead view or rotate the 3D board to explore the position.

Position 1 of 3

Understand the why.

The rules, the exceptions, and the ideas worth remembering.

How the move works

When a pawn reaches the eighth rank (the first rank for Black), it is exchanged on the same move for a queen, rook, bishop or knight of its own colour. You cannot keep a pawn there, and you cannot choose a king.

The choice does not depend on which pieces have been captured. You may have two or more queens on the board at once. In notation, promotion is written e8=Q, or e8=N for a knight.

In over-the-board play, place the new piece on the square to complete the move. If no spare queen is handy, stop the clock and ask the arbiter for one. Do not use an upside-down rook: in FIDE events it is treated as a rook, not a queen.

When to choose something other than a queen

A queen is almost always best, because it combines the rook and the bishop. Underpromotion matters in two situations.

A knight can attack squares a queen cannot. Promoting to a knight with check, or with a fork, sometimes wins where a queen would not.

A queen can be too strong. If the new queen would leave the enemy king with no legal moves while not giving check, the game is drawn by stalemate. Promoting to a rook or bishop avoids that.

Make the idea yours

One last thought.

No timer. No score. Just a moment to check your understanding.

Which set contains every legal promotion choice?

A few good questions.

Can you have two queens?

Yes. Promotion does not depend on captured pieces, so you can have as many queens as you have promoted pawns.

Can a pawn promote to a king?

No. The choice is queen, rook, bishop or knight.

Is promotion optional?

No. A pawn that reaches the last rank must be promoted on that same move.

Can you promote by capturing?

Yes. A pawn that captures onto the last rank promotes just the same.