Blackjack
← Every handPair decision · six decks · S17 · DAS · no surrender

Pair of 5s vs dealer ace

What should I do with pair of 5s against a dealer ace in blackjack?

5 of spades5 of heartsDealerAshowsAce of clubs
The move
Hit.

Two fives are hard 10. Splitting would start two weak hands from five; doubling keeps a strong total and puts an extra bet on it, except against the two upcards most likely to make 20 or 21.

Why basic strategy says hit

Two fives are hard 10. Splitting would start two weak hands from five; doubling keeps a strong total and puts an extra bet on it, except against the two upcards most likely to make 20 or 21.

Engine explanation: Hit with a pair of 5s against an ace. Take another card under the selected rules. This is a long-run basic-strategy decision, not a prediction of the next card.

Pair of 5s against every upcard

H hit · S stand · D double · P split. Select a cell for its page.

Nearby pairs against a ace

HandMove
Pair of 2sHitWhy →
Pair of 3sHitWhy →
Pair of 4sHitWhy →
Pair of 5sHitWhy →
Pair of 6sHitWhy →
Pair of 7sHitWhy →
Pair of 8sSplitWhy →
Pair of 9sStandWhy →
Pair of 10sStandWhy →
Pair of acesSplitWhy →
Training rules: six decks · dealer stands on soft 17 · no surrender

This is a separate educational profile. Rules can differ between app tables and other games.

  • Six decks. Dealer stands on all 17s, including soft 17.
  • US hole card and peek: decisions assume the dealer has checked and does not have blackjack.
  • Double any first two cards, including after splitting. Doubling ends the hand after one extra card.
  • Split equal card values into at most four hands. Split aces receive one card each; no resplitting aces.
  • No surrender. A natural blackjack pays 3:2; 21 after splitting is not a natural.
  • Total-dependent strategy. No card counting or expected-value estimates.

Profile six-deck-s17-das · rules 1.0.0 · strategy 1.0.0. The trainer asks for one decision per hand; it does not simulate wagers or settlement.