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 who knows the math inside out, and some variants of the game, through what looks like a trivial rule change, become 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 get back half your bet if you no longer believe in the hand — better than losing all of it) or bonus payouts for 'pretty' hands like 6-7-8 and 7-7-7. However, Spanish 21 has no tens: where classic rules need an ace plus 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. As a result, you'll put together 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 chart 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

Being able 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, a natural blackjack pays 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 you have 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 is in for a serious letdown.

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 a little different (a natural blackjack is a pontoon, taking a card is a twist, standing is a stick), and you can end up choosing an option other than the one you meant to by mistake. The dealer also doesn't show their cards, so you play blind, guessing — here it's especially important to remember every card that's 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 rare event.