>When there is runners on 1st and 2nd,the ball is hit to third base for
>a FC.He steps on third base for a force out.How do we score that on the
>PDA?

You have to do 3 things. Generally I do them in the following order:

1> Tap 'FC' on the menu bar at the bottom. This is the one case where
K-ForCE does not auto advance the runners (since it doesn't know which is putout and what the out comment is).

2> Drag the runner at second to the small out circle (the one next to the
small base runner diamond). Enter '5' or '5U' for the out comment (third baseman, unassisted).

3> Advance the runner from 1st to second. Even though there are two
Runners at second at this point, K-ForCE knows that you intend to advance the baserunner who was on base before the 'FC' was scored.

>Also when an infield fly is hit and the infield per son catches it how
>do we score that?

Infielders make outs on ground balls more often the fly balls. So K-ForCE presumes a ground ball. Infield fly can be recorded in one of two ways:

1> Use the 'F' menu at the bottom, then tap the player position '5' to
Record 'F5'

2> Tap the '5' position then manually enter an 'F' before the '5' to
Record 'F5'

The reverse is true for a right fielder throwing out a runner at first:

1> Tap '9' enters the out as 'F9'.

2> Tap '9' again and since the 'F9' was selected, it is replaced with just '9'.

3> Tap '3' and somewhere else to accept, and it is interpretted as '9-3'