Blackjack table

Basic strategy says to hit a hard 12 against a dealer 8. The dealer is unlikely to bust with an 8 showing, so standing on 12 loses more often than hitting.

Hard 19 against a dealer 8 is a clear stand under basic strategy, since hitting busts too often and 19 beats the dealer's likely 18.

Basic strategy for hard 15 against a dealer 6 is to stand. The dealer has a high bust chance, so we avoid risking a bust ourselves.

Hard 18 against a dealer 10 is a stand under basic strategy. Hitting or doubling only adds bust risk.

Basic strategy says to double a hard 11 against a dealer 4, since we are strong and the dealer is weak.

Hard 8 against a dealer 10 is a basic-strategy hit. Doubling isn't worth it, and standing on 8 is clearly worse.

Under composition-dependent strategy, standing on a three-card hard 16 against a dealer 10 is marginally better than hitting, because the small cards already used lower the odds of a good draw. The edge is very small either way.

Basic strategy for hard 10 against a dealer Ace in 6-deck S17 with peek is to hit, not double. Doubling here has a lower expected value than hitting.

A hard 20 should always stand, even against a dealer Ace; hitting would bust on most cards.

Basic strategy says hard 15 against a dealer 7 is a hit. The dealer is likely to make 17 or better, so standing on 15 loses more often.

Under basic strategy, hard 14 against a dealer 6 is a stand. The dealer has a high bust chance, so it is better not to risk busting myself.

Basic strategy for a hard 12 against a dealer 3 is to hit, since the dealer's 3 is not weak enough to justify standing.

A hard 7 against a dealer 9 is a hit under basic strategy. No card can bust it, and doubling is not favorable here.

Hard 17 against a dealer 9 is a stand in basic strategy, since hitting would bust too often.

Basic strategy for a hard 14 against a dealer 10 is to hit. Standing loses more often because the dealer is likely to make 17 or better.

Hard 13 against a dealer Ace calls for a hit under basic strategy (S17, dealer peeked), since standing on 13 against a strong upcard loses more often.

Basic strategy for hard 12 against a dealer 9 is to hit. A 9 upcard is strong for the dealer, so standing on 12 loses more.

Basic strategy for hard 12 against a dealer 10 is to hit, because standing on 12 loses more often against a strong upcard.

Hard 19 against a dealer 10 is a clear stand under basic strategy, since hitting busts on most cards.

A hard 20 against a dealer 7 is a strong favorite, and standing beats splitting tens under basic strategy.

Hard 20 against a dealer 7 is a strong standing hand, and splitting tens gives up a likely win. Basic strategy is to stand.

A hard 5 against a dealer Ace is a clear hit under basic strategy. No card can bust it, and doubling or standing would be far worse.

A hard 15 against a dealer Ace, with the dealer standing on soft 17 and no surrender available, is a hit under basic strategy. The dealer has already peeked and has no blackjack, so their hand is strong and standing on 15 loses more often.

Basic strategy says to always hit a hard 5. Doubling would be wrong and standing would be far worse.

Basic strategy for a hard 14 against a dealer 3 is to stand, since the dealer's chance of busting beats my odds of improving without busting.

Hard 7 against a dealer 4: basic strategy is to hit, since there is no bust risk and doubling on 7 is not favorable.

Basic strategy says to stand on hard 16 against a dealer 4. The dealer has a high bust probability, and hitting risks busting our own hand.