Kepler & K2 provide long-baseline, high-precision photometry for exoplanet and astrophysics research.
The basic and most common additional rule for Doubles play is that where a Double exists at the end of any train, the Double must then be 'satisfied' (laid against) in the next turn, even if the Double is on another player's train that is not marked.
Playing the Game. 1  1. Choose your players. 2  2. Serve the ball from behind the line at the back of the court. 3  3. Return the ball if you're on the receiving team.  4. Continue hitting the ball back and forth across the net until a fault 1  happens. 5. Serve the ball again.  6. Continue playing until you reach a threshold. You can decide how many points you will allow for each game. For instance, you can start a new game when a team earns 15 points. Recent rules state that regulation games go to 25 points, with the third game (in a set of three) going to 15.