 		pieceGroup.clipped = true
 		pieceGroup.position.x = i * rectangle.width / 2 + rectangle.width / 2
 		pieceGroup.strokeColor = 'black'
+		piecesLayer.addChild pieceGroup
 
 		pieces.push
 			zone: dropZone

		if actualPiece.zone.contains event.point
			actualPiece.group.position = background.position

		# Reset
		for piece in pieces
			piece.group.strokeWidth = 0 

	Two pieces
	###

	dropZoneLayer = new P.Layer()
	piecesLayer = new P.Layer()
	pieces = []

	for i in [0..1]
