Blackjack table

Hit hard 12 against the dealer ace; standing loses too often against the dealer's likely strong total.

Hit 12 against a dealer 10; standing has a worse expected value.

Stand on hard 17 against a dealer 10; hitting has a high bust risk and basic strategy stands.

Stand on hard 19; it is a strong total and the dealer's 4 is a weak upcard.

Stand on hard 20 against an 8; it is a very strong total and drawing risks busting.

Double 11 against a dealer 5: the dealer is vulnerable to busting and one additional card has strong expected value.

Double 10 against a dealer 10 under standard multi-deck basic strategy, as the strong chance to draw a 10-value card outweighs the dealer's high upcard.

Hard 16 against a dealer 10 should hit when surrender is unavailable; standing loses too often to the dealer's likely strong total.

Stand on hard 19 against the dealer Ace; hitting risks busting and doubling is not justified.

Stand on hard 15 against dealer 6; the dealer's weak upcard makes letting them draw preferable to taking bust risk.

Stand on hard 17 against a dealer 10; hitting has too high a bust risk.

Stand on hard 20; it is already a very strong total against any dealer upcard.

Stand on hard 17 against a dealer 10; hitting has a high bust risk and is not favorable under basic strategy.

Double 8 versus a dealer 4: the dealer is in a weak upcard spot, and doubling maximizes value on this favorable two-card total.

Double 10 against dealer 2: we are favored to improve to a strong total and the dealer has a weak upcard.

Double 11 against the dealer's 6, a favorable dealer bust card and strong chance to improve with one card.

Stand on hard 17 against a dealer 9; hitting has a high bust risk and basic strategy stands.

Stand on hard 14 against a dealer 6, letting the dealer play out a weak upcard.

Hard 16 against a dealer 9 should hit under basic strategy; standing loses too often to the dealer's likely made hand.