Patent ID: 8398085

Claim:
A game server comprising: at least one processor; a database for storing a plurality of electronic bingo cards; and a memory operatively coupled to said at least one processor, said memory storing program instructions that when executed by said at least one processor, causes said processor to: provide at least one electronic bingo card to a player unit; receive a trade request from said player unit; validate said trade request; provide at least one new electronic bingo card to said player unit in exchange for the at least one electronic bingo card when validated; mark said at least one new electronic bingo card within said database precluding other player units from accessing said at least one new electronic bingo card; wherein said memory storing program instructions when executed by said processor causes said processor to: mark said at least one new electronic bingo card within said database precluding other player units from accessing said at least one new electronic bingo card; wherein said memory storing program instructions when executed by said processor causes said processor to: pre-call bonanza bingo numbers; and provide said bonanza bingo numbers to said player unit.