To beat the dealer the player must first not bust (go over 21) and second either outscore the dealer or have the dealer bust. Perhaps the most frequent is this one, 'The object of blackjack is to get as close to 21 as possible, without going over.' No! The object of blackjack is to beat the dealer. I overhear a lot of bad gambling advice in the casinos. Rummy (Blackjack variant popular in Costa Rica).21: Details on the Wizard\’s Simple Strategy.20: Blackjack doubling strategy when doubling after splitting aces is allowed.19: Blackjack splitting strategy when a back-player is betting.18: Basic strategy exceptions for three to six cards.16: Basic strategy when dealer exposes both cards.15: House edge using total-dependent vs.13: Probabilities in the first four cards.11: Value and strategy for 678 and 777 bonuses.