In football (soccer), a player can be offside from a goal kick.
In basketball, each team has 5 players on the court.
In cricket, a no-ball always results in a free hit.
In tennis, the server must serve diagonally across the court.
In badminton, a rally can continue even if the shuttle touches the net.
In hockey, players are allowed to use both sides of the stick.
In rugby, forward passes are allowed.
In table tennis, the serve must bounce on both sides of the table.
In volleyball, a team can hit the ball four times before returning it.
In chess, a player must say “check” when threatening the king.
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