Basic strategy in blackjack involves following a set of simple rules that guide a player's decisions based on their hand and the dealer's upcard. It's designed to minimize the house edge and is easy for any player to learn and use effectively. Advanced strategies, however, go beyond this by incorporating techniques like card counting, where players track the cards dealt to estimate the remaining deck composition. This allows skilled players to adjust their bets and actions based on the likelihood of certain cards being dealt. Advanced strategies require more concentration, skill, and often the ability to avoid detection by the casino. In short, basic strategy is a foundation for optimal play, while advanced strategies seek to give players a potential edge over the casino.