I think Super 21, on the other hand, is a more complex game that requires a more nuanced understanding of basic strategy, including flexible doubling and surrender options. Players who excel at Super 21 may need to develop a deep knowledge of the game's rules and mechanics, as well as the ability to adapt their strategy on the fly in response to changing circumstances. Overall, both Triple Sevens and Super 21 can provide a challenging and exciting experience for blackjack players, depending on their preferred style of gameplay and skill level.