It sounds like you are talking about the tuning slide. http://www.zacharymusic.com/Zachary_Music/ZTR900parts01.JPG
your arms.
forward and backwards
When you try to ride a bike with the pedals moving only backwards and not forward, the bike will not move forward. The pedals need to move in a forward motion in order for the bike to propel forward.
No, pawns in chess can only move diagonally forward to capture an opponent's piece. They cannot move diagonally backwards.
No, in traditional checkers, pieces can only move forward on the board.
No, in checkers, you cannot attack backwards. Players can only move their pieces forward diagonally.
The winners in a "tug of war" go backwards
you use a,w,d, and s. a=move <-- d=move --> w=move forward s=move backwards
backward
Only a king can move in any direction in checkers. All other pieces can only move forward.
The pedal at your right foot. Press forward to go forward and back on a heel tread to go backwards.
Assuming you are talking about chess, it always moves forward. It can only move 1 step forward if already moved. If it hasn't been moved then it can move 2 forward. And it can only attack diagonally forward either to the left or right never backwards.