Patent ID: 7234700

Claim:
A method for a player playing a casino game comprising: receiving a wager from the player to play the casino game, playing a slot game in the casino game having an expected rate of return to the player in response to receiving the wager, ending the casino game when the player receives a slot game payout based on the expected rate of return for the slot game, stopping play of the slot game at a known statistical frequency rate to generate a bonus condition signal, separately playing a knowledge-based game connected to the slot game in the casino game using answers from the player only after the slot game is randomly stopped to continue play of the casino game, the knowledge-based game interconnected with the slot game to at least receive the bonus condition signal from the slot game, the play of the knowledge-based game not affecting any awards made to the player in the underlying slot game, the knowledge-based game having an expected rate of return to the player based at least on the correctness of the answers, varying the knowledge-based game expected rate of return, the varying knowledge-based game expected rate of return obtaining first and second limits over all play of the casino game, the first limit based upon all answers from the player in the knowledge-based game being correct and the second limit based upon all answers from the player in the knowledge-based game always being guessed at.