Beschreibung
From the Invisible City Productions website:

Pattern placement and deduction for two to four players.

Object: Place tokens on a board to match patterns on your card or (even better) on your opponent’s card.

Give each player one pattern card. You may look at your pattern card, but keep it secret. On your turn, you get to roll and fill. Roll: (This step is optional, except that you must roll if the previous player filled a blank space.) Roll the die. Fill: Put a piece in a vacant space that shows the same number as the die. If there are no available moves, you may put a piece in a vacant blank space. If there is no vacant blank space to fill, then roll again. Play passes to the left. The game ends when all spaces are filled. When the game ends, you must reveal your pattern card.

Winning: Starting with the last player, each player takes turns 'lifting' (removing) one sequence of his or her tokens that matches one of the following conditions:

* If you lift your pattern, you get 4 points.
* If you lift a straight line of 4, you get 5 points.
* If you lift the pattern of the player to your left or right, you get 6 points.

Once all available patterns have been lifted, the player with the most points wins.

Rules, cards, and an optional board (a set of double-six dominoes can be used instead) are available here:
http://www.invisible-city.com/play/51/pitter-pattern