Both players use a draw pile and a discard pile. As soon as the draw pile is exhausted the discard
pile is shuffled and used as new draw pile.
(This rule was not explicitely expressed - neither in the english nor the german rules text).
At the end of his turn a player may discard as many cards from his hand as he likes.
(Due to a typo in an earlier version of the english rules it looked like he was only allowed to discard one card.)
Please contact us if you found any errors.