To start off, the game is similar to baseball except there is no running. 

 

There are 2 teams participating in each game.  The game is broken up into 6 innings.  In each inning, the home team pitches to the away team for the top half of the inning, and the away team pitches to the home team at the bottom of the inning.  There are 3 outs per half inning.

To score a run, a team must advanced a runner 4 bases whether it be by walk or hit.  Whichever team is winning by the end of the 6th inning is the victor.  If the game is tied at the end of 6 innings, play will go into extra innings until one team is ahead by the end of an inning.

The pitcher throws the ball into a designated area called the strike zone.  Any pitch that hits the strike zone is a strike, and any pitch that misses is a ball (provided that the batter does not swing at the ball).  If a pitcher throws 3 strikes, the batter is out.  If the pitcher throws 4 balls, the batter walks to first base.

The batter tries to hit the ball out of the air into fair territory.  The ball has to pass the pitcher in order to be a fair ball.  Consult the example below to see where a ball must land, not stop to be determined the type of hit.

If the batter hits a ball into fair territory, a ghost runner advances to the corresponding base.  For example: the batter hits a ball into double territory.  Then there is a runner on 2nd.  If the next batter hits a double, the ghost runner on 2nd advances 2 bases to home and a run scores.

The pitcher can have 2 players on defense in the field that assist the pitcher in catching fly balls and stopping ground balls from getting past the pitcher.  If a ball is caught out of the air before it hits the ground, it is an out.  If a ground ball does not make it past the pitcher, it is a foul.  The batter can not be called out on foul balls.