Blackjack table

Hard 15 against a dealer 7 is a hitting hand: standing leaves me at 15 versus a likely made 17-21, and doubling on 15 is not a winning play. Hit and try to improve to 17+.

I have a hard 20 against the dealer's 4, which is a strong standing hand. Hitting, doubling, or splitting tens would only reduce expected value.

Hard 12 against a dealer 10 is a hitting hand; standing risks losing to any made dealer hand, and doubling is not justified with a weak total.

Hard 16 against a dealer 10 is a standing hand under basic strategy; hitting risks busting, and doubling is inappropriate with this total.

Hard 15 against a dealer 10 is a losing stand, so I hit to try to improve to a stronger total. Doubling is not justified with a weak 15 against a strong upcard.

Hard 13 against a dealer 8 is a losing stand, so I hit to improve my total. Doubling is not appropriate for this weak total.

I have a hard 20 against the dealer's 8, so standing is clearly best; hitting would risk busting a near-certain winning total.

With a total of 6 against the dealer's 8, hitting is the correct basic-strategy play; splitting 3s or doubling here would be too aggressive against a strong dealer upcard.

Hard 18 against a dealer 4 is a strong standing hand; hitting risks busting and doubling is not justified with 18.

Hard 9 against a dealer 5 is a strong double opportunity, maximizing expected value with a one-card draw.

Hard 15 against a dealer 3 is a standing hand in basic strategy; the dealer is likely to bust, and doubling would risk extra chips on a weak total.

Hard 20 against a weak dealer 5 is a strong standing hand; doubling or splitting would only risk a winning total.

Hard 13 against a dealer 10 is a losing stand, so I hit to try to reach 17-21. Doubling is not justified on a weak total versus a strong upcard.

With a hard 11 against the dealer's 5, doubling maximizes expected value by getting more money in while the dealer is likely to bust.

With a hard 14 against a dealer ace, basic strategy is to hit; splitting sevens against an ace is unfavorable and doubling 14 is too risky.

Hard 15 against a dealer Ace is a losing stand, so I hit to try to improve without risking a bust on a made hand.

Hard 14 against a dealer 4 is a standing hand in basic strategy; the dealer is likely to bust, so hitting risks losing without improving enough.