A game method includes a player placing a wager. A sub-game includes the selection of N challenge indicia from a set of ranked indicia. After each challenge indicia is displayed, a player predicts the relative ranking of the next challenge indicia. If a player qualifies based on his performance during...http://www.google.se/patents/US7338371?utm_source=gb-gplus-sharePatent US7338371 - High low series gambling game
