No hole card blackjack is a variant of the traditional game where the dealer does not receive a face-down card. Instead, the dealer's hand is only revealed after all players have completed their turns. This format alters the strategy for players since they can make decisions without the risk of the dealer having a hidden blackjack. As a result, players may feel more informed in their choices, but it can also lead to slightly different odds and payout structures, making it essential for players to adjust their strategies accordingly.