Since in Spanish 21, it is allowed to double on any number of cards and points, it is very profitable for players to count cards under favorable circumstances. Card counters make doubles more often than the basic strategy recommends if the score reaches high levels.Blackjack is paid 3:2 even if the dealer also has blackjack (due to higher values of aces).In Spanish 21, it is allowed to re-split aces and hit more than one card after splitting aces, making an ace even more favorable for players.Since there are no tens, it appears more often than in traditional blackjack (1/12 compared with 1/13). An ace seems to be the most beneficial card.
For the reasons discussed below, Spanish 21 is more profitable for card counters than traditional blackjack. Yet, such changes even contribute to card counting. It may seem that such redistribution makes card counting inefficient or even useless. On the other hand, it does not have valuable tens. However, how such rules may affect card counting? Does it make sense for counters to sit at the Spanish 21 table? Or is it better to play more traditional versions of blackjack? Bonus payouts for hands of sixes, sevens, and eights significantly increase the value of these cards in Spanish 21 compared to classic blackjack. It makes Spanish 21 even more profitable for casino visitors than most other blackjack variations.