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.
Understanding the Basic Rules of Hearts. 1  1. Grab a standard deck, a few friends, and some scratch paper. 2  2. Play tricks by attempting to follow the suit of the card that led. 3  3. Avoid taking tricks by trying not to play the highest-ranking card during the trick.  4. Avoid Hearts and the Queen of Spades.