How to Capture En Passant

Enemy Pawn advances two squares

Now the black Pawn on the left has advanced two squares in a single move. It looks like it has avoided being captured by the white Pawn. This is the condition necessary for capturing 'en passant', also known as 'e.p.'.

The white Pawn can now pretend that the black Pawn stopped on the square that is still marked by the green circle. That would leave the black Pawn on a square subject to capture by the white Pawn.

Index: How to Capture En Passant

1. Pawn on its 5th row vs. Pawn on its 2nd row
2. Enemy Pawn advances two squares
3. Capture as though the enemy Pawn had advanced one square
4. En passant holds for either side
5. Summary of the e.p. rules