Spanish 21, Pontoon, and Switch: blackjack variants not recommended for beginners

One reason blackjack is so popular is that a player using basic strategy can count on a long-run RTP of around 99.5% — meaning they're unlikely to lose their bankroll quickly. But the casino has an interest in tripping up even a customer well versed in the math, and some variants of the game, through what looks like an inconsequential edit to the rules, turn into a genuine nightmare for a beginner.

Spanish 21: a deck with no tens

Spanish 21 looks tempting thanks to its many perks: the option to surrender at almost any stage of play (you take back half your bet if you no longer believe in the hand — better than losing it all) or bonus payouts for 'pretty' hands like 6-7-8 and 7-7-7. However, Spanish 21 has no tens: whereas classic rules need an ace and a face card or a ten for a natural blackjack (there are 16 cards worth 10 in a 52-card deck), the Spanish rules keep only the face cards. Accordingly, a player will assemble a full blackjack paying 3:2 about a third less often, and the long-run RTP drops.

Because of the altered ratio of high to low cards, the classic-blackjack basic-strategy table doesn't apply at a Spanish table, and anyone who tries to stick to it without realizing the fundamental difference will lose their whole bankroll in no time.

Blackjack Switch: a 1:1 payout and the 'dealer 22' rule

The ability to play two hands from the start, and to swap cards between them, looks like a perfect option: two weak hands can often be turned into one ready-made blackjack. However, the payout on a natural blackjack is 1:1 instead of 3:2, which drastically worsens the long-run RTP. On top of that, a dealer who reaches 22 doesn't lose — unless the player has a natural blackjack, it's counted as a push. Frankly, Blackjack Switch is a similar but different game, and a beginner sold on the advantages alone risks serious disappointment.

Pontoon Blackjack: different terminology and the dealer's 'invisible' cards

A beginner can get lost the moment they sit down at a Pontoon table: the terminology is somewhat different (a natural blackjack is a pontoon, to take a card is to twist, to stand is to stick), and by mistake you can pick an option other than the one you intended. The dealer also doesn't show their cards, so the customer plays blind, guessing — here it's especially important to remember every card that has gone to the discards. Pontoon's upside is the mandatory 2:1 payout to a player who makes five cards without busting, but that's a great rarity.