Blackjack Trainer: 21 Coach

Pair of 6s vs dealer ace: hit, stand, or split?

Hit. Pair of 6s against a dealer ace is played the same way whether the dealer hits or stands on soft 17.

Why

A dealer ace rarely busts, so standing on a stiff total loses more often than not. Taking a card gives you a better shot.

A pair is two cards of the same value, and any two 10-value cards count as a pair of 10s. Played as one hand, this pair is a hard 12: see Hard 12 vs dealer ace.

The numbers

How a dealer ace finishes (6 decks, after the dealer has checked for blackjack; rounded)
Dealer rule1718192021Bust
Dealer hits soft 178%21%21%21%10%20%
Dealer stands on soft 1719%19%19%19%8%17%
Average result per hand for each play (6 decks; higher is better)
PlayDealer hits soft 17Dealer stands on soft 17
Hit-0.39best-0.35best
Surrender (where offered)-0.50-0.50
Stand-0.60-0.66
Split-0.68-0.61
Double down-0.84-0.83

Scoring: a win scores +1, a loss -1, a tie 0, and a doubled hand counts twice. Surrender scores -0.50. Hit means take a card, then play on as well as possible. These are averages over many hands from the strategy audit behind the app, rounded and approximate. Any single hand can go either way.

Rules assumed

One-deck and two-deck games, tables without surrender, and dealers who do not check for blackjack change some plays. Check your table's rules before relying on any chart.

Both soft 17 rules are shown. The two charts differ on only 6 of 360 hands: see the dealer hits and dealer stands charts. The plays come from the verified 4 to 8 deck tables behind the Blackjack Trainer app (bs_4to8_h17_peek and bs_4to8_s17_peek).

Common questions: Pair of 6s vs dealer ace

What is the correct play for a pair of 6s against a dealer ace?

Hit. This is basic strategy for 4 to 8 decks, and it is the same whether the dealer hits or stands on soft 17.

Does the soft 17 rule change a pair of 6s against a dealer ace?

No. The play is the same whether the dealer hits or stands on soft 17. Only a handful of hands on the chart change with that rule, and this is not one of them.

Should I split 6s against a dealer ace?

No. Hit. A dealer ace rarely busts, so standing on a stiff total loses more often than not. Taking a card gives you a better shot.

Does this assume the dealer has already checked for blackjack?

Yes. In US-style games the dealer checks for blackjack when showing an ace before you act, so this play applies once the dealer is known not to have one. In games where the dealer does not check, some plays change.

Should I take insurance when the dealer shows an ace?

No. Basic strategy always declines insurance: insurance is a bad bet.

Does basic strategy guarantee a win?

No. It picks the play with the best average result, but any single hand can go either way, and the house keeps a small edge. This site and the Blackjack Trainer app are for practice only.