Spanish 21 is a popular variation of blackjack that is played in many online casinos. The game is played with a deck of 48 cards, with the four 10s removed. This increases the house edge, but provides players with a unique and challenging gaming experience. Spanish 21 includes many different rules and payouts, including the ability to split up to four times, double down on any number of cards, and win bonus payouts for making a 21 with specific combinations of cards. This game is popular among players who enjoy a fast-paced, high-stakes game with plenty of exciting twists and turns.