Patent ID: 8197323

Claim:
A computer-implemented method for providing a second-chance game to players of a lottery game, comprising the steps of: producing tickets for the lottery game, including printing a unique validation code on each ticket; with a computer system, applying an algorithm to generate a unique, first encryption code for each ticket validation code; storing the first encryption code in the computer system so that the first encryption code and algorithm are present only as electronic data in the computer system and the tickets are free of the first encryption code and algorithm; distributing the tickets for possession by players of the lottery game; providing for players to access the computer system and submit the unique validation codes for registration in the second-chance game; the computer system applying the algorithm to the submitted validation codes to create a second encryption code for each submitted validation code; the computer system comparing the second encryption code with the record of first encryption codes to determine whether a match exists; registering players for the second-chance game when such players submit a validation code that results in a match; and conducting a subsequent lottery drawing for all validated ticket entries in the second-chance game.