Chess Advices

Upgrade your pawns to be airborne rangers, then they can not only move on the board to take a piece, but can come down on the opposing army.

Ok. I am in a silly mood, just had  my second cup of coffee dam caffeine

hahahaha , nice one

9- Castling the king  quickly as possible to secure the King is one of the most important things that you must do as fast as you can whenever you Castling This helps to position the rook and then the rook control of the open column  or half open column .

10 - Castling King side (short castling) Suite safer than castling queen side (long castling)  because the king is in far position from  the middle and it is behind the pawns so it is protected otherwise it is faster than the castling queen side .

I have watched some master games and some tend to delay castling because not sure which side to go for looking at the board. Castling takes up a move and when two masters are racing for developmment/position I can understand the delay.  Thats what I love about chess there are no concrete rules to go by, when the game is played at such a high level.

"Thats what I love about chess there are no concrete rules to go by, when the game is played at such a high level."

yes your words are right  for experienced player but these tips  are very important for a starter player it is like a road for his moving 

11- Try to prevent your opponent from King Castling

If your opponent's delay in Castling , try to make his king of not Castling a longer time in the middle, One of the ways to do that is  threatening one of the squares which his King will pass by the opponent to be in delay tends to be f1 or f8 according to any color of the opponent .

12- Control the squares that threaten your opponent as much as possible, for  example, Move one Pawn forward step to give way to your pieces to move while

 your opponent  find it is difficult to move his pieces.