ply
a half-move (i.e. one player's move) in a two-person game
tempo
turn or single move in chess
extension
Go term
Dame
move in go
discovered attack
a situation in chess and chess-like games where one piece moves to allow another friendly piece to then attack an enemy piece
trick
one of a series of rounds in a trick-taking game
Big Play
move of the match in American football
free throw
action in handball
castling
chess move in which the king moves 2 squares toward a rook, while the rook moves to the square passed over by the king