Patent ID: 7100822

Claim:
A computerised lottery having at least one computer system for recording entries and determining one or more winners, in which participants are invited to select at least one number from a defined range of n numbers, where n is a number, and to register each participant's selection with the computer, the computer recording at least an identity or contact details of the participant and the number selected by the participant, rules of a competition being such that participants are aware that the competition will run until a winner is declared, but that more than one selection of a same number by more than one participant or entry will prevent said number from being chosen for a primary prize without eliminating said number from future participant selection, the competition running until either: (a) a defined time has expired to determine one or more winners based on the participants who had selected numbers that other participants had not selected; or (b) until all but one of the numbers have been selected two or more times, and only one number remains having been selected by only one participant, with the one number remaining that has been selected by only one participant being a final number and being declared a winning number, and the participant having chosen said winning number being identified as a winner.