Experienced players can usually tell which side is winning by just looking at the board and pieces on hand.  So if you look at the following boards and are able to correctly state that

• The first example is an even game
• The second example is in favor of Sente (black)
• The Third example is in favor of Gote (White)

Then you can skip the rest of this chapter.  For those who needs more guidance, please read on.