The dash means there is no en passant capture. The one is how many half moves there have been since the last pawn advance or capture. The 17 is how many full moves have been made in the game. See: http://en.wikipedia.org/wiki/Forsyth-Edwards_Notation
FEN

The dash means there is no en passant capture. The one is how many half moves there have been since the last pawn advance or capture. The 17 is how many full moves have been made in the game. See: http://en.wikipedia.org/wiki/Forsyth-Edwards_Notation
THANK YOU SO MUCH!!
Can someone explain what the end of the FEN code means? I figured out what the green means but not the red.
r1b1k3/p1pp3p/3bp3/1P4p1/4P1P1/2N5/PPP2P1P/R4RK1 w q - 1 17