CAPTURE

A seizure of a piece or pawn to a square occupied by an opponent’s piece or pawn and a removal of the latter off the board. The only piece that cannot be captured is king. Capture is optional unless it is the only possible move. Capture of pawns moved 2 squares ahead and hence positioned in the same rank next to opponent’s pawn is called en passant. In the notation the ‘x’ or ‘:’ are used to indicate a capture like Nxd4 or N:d4. Black played 4…e5. Now White may play 5.cxd5 or 5. dxe6 ep.