An improved number matching game is provided. The game includes a matching game with multiple number sets. A player can win standard Keno paytable awards in addition to relatively large awards. A player's initial set has a minimum size requirement for the player to be eligible for the relatively large...http://www.google.de/patents/US20070184887?utm_source=gb-gplus-sharePatent US20070184887 - GAMING DEVICE AND METHOD PROVIDING RELATIVELY LARGE AWARDS WITH VARIABLE PLAYER PARTICIPATION LEVELS
