Players may surrender after doubling, forfeiting their original bet but keeping their double down bet.Players may hit and double down after splitting any card values, even Aces.Players may double down on any initial 2-card hand, regardless of the value.A player with a hand worth 21 always wins, regardless of what the dealer holds.Spanish 21 Blackjack Rulesīecause Spanish 21 is a variation of the blackjack game, players will need to familiarize themselves with the specific rules tied to the game, which are as follows: This does of course give the dealer a big advantage, although Spanish Blackjack does bring some favour back to the player with several differing rules. This version of blackjack is played with either six or eight Spanish decks, that being a standard 52-card deck with four tens removed to make 48. This can lead to the game being classed as a better option than classic blackjack. Spanish Blackjack is considered by many to be one of the most profitable variations of the game, especially when it comes to the dealer standing on soft 17, or where players are able to redouble. If the rules say that the dealer must stand on Soft 17, Spanish 21 may become more profitable than regular Blackjack.