Hi again friends, today we will be learning about some of the basics.
having a open file for the rook is always an advantage especially in the middle game. the more active your rook is the better and it can only be active with the help of an open file.but remember if the rook should have use of that open file. the open file must help him penetrate the enemy camp other wise it is of no use.
see in the below game how the white has an open file for the white which gives him an advantage where as the black rook got trapped because of lack of development of the rook.SO ALWAYS REMEMBER YOU GOT AN OPEN FILE AND A ROOK GRAB THAT OPEN FILE.