Split.Why basic strategy says split
Two aces total soft 12, but split they become two hands that each start with the most flexible card in the deck. Each split ace receives one card under this profile and still has a strong chance of making 21.
This is one of the two splits basic strategy makes against every upcard.
If the table restricts you: If splitting is not allowed, play the hand as hard 12: hit.
Engine explanation: Split with a pair of aces against 4. Play these as two separate hands under the double-after-split rules. This is a long-run basic-strategy decision, not a prediction of the next card.
Pair of aces against every upcard
H hit · S stand · D double · P split. Select a cell for its page.
Nearby pairs against a 4
| Hand | Move | |
|---|---|---|
| Pair of 2s | Split | Why → |
| Pair of 3s | Split | Why → |
| Pair of 4s | Hit | Why → |
| Pair of 5s | Double | Why → |
| Pair of 6s | Split | Why → |
| Pair of 7s | Split | Why → |
| Pair of 8s | Split | Why → |
| Pair of 9s | Split | Why → |
| Pair of 10s | Stand | Why → |
| Pair of aces | Split | Why → |
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.