Blackjack table

20 is a very strong hand versus a dealer 4, and the dealer is likely to bust or make less than 20. Splitting or doubling would risk a sure win for no benefit.

Soft 18 vs dealer 4 is a strong double-down spot; dealer is likely to bust or make a low total, and doubling maximizes expected value.

Splitting 3s against a dealer 5 is the basic strategy play, as the dealer is likely to bust and splitting gives two chances to draw strong cards.

Hard 13 vs dealer 5 is a stand in basic strategy; the dealer is likely to bust, and hitting risks busting my hand.

Hard 13 against dealer 5 is a stand in basic strategy; the dealer is likely to bust or make a low total, so drawing risks needless busting.

Hard 8 against a dealer 10 is a losing hand, so hitting gives the best chance to improve without the risk of doubling into a strong dealer upcard.

With a soft 19 against a dealer 10, standing is the optimal play to avoid busting and preserve a strong hand.

Total 20 is a very strong hand against a dealer 10, and the dealer cannot have blackjack since play is still active. Hitting, doubling, or splitting would risk a winning position for little gain.

Dealer shows a 5, a bust card, so standing on 15 gives the dealer a good chance to bust and avoids the risk of hitting into a worse total.

18 is a strong hand against a dealer 5 upcard; the dealer is likely to bust, so standing maximizes expected value without risking additional chips.

Standing on 20 is the correct basic strategy against a dealer 6, as hitting or doubling would risk a made hand.

Hard 19 beats a dealer 8 in most cases, and doubling or hitting risks a made hand. Standing is the correct basic strategy play.

18 is a strong hand against a dealer 10; hitting or doubling risks busting, so standing maximizes expected value.

Dealer shows a 5, a weak upcard, so standing on 12 is the correct basic strategy play to avoid busting while letting the dealer likely bust.

With a hard 19 against a dealer 10, standing is the correct basic strategy play; hitting risks busting and doubling is not beneficial.

I have 18 against a dealer 6, which is a strong hand. The dealer is likely to bust, so standing maximizes my expected value without risking additional chips.

Hard 18 is strong against a dealer King; hitting risks busting and doubling is not profitable, so standing is the correct play.

Hard 15 against a dealer 10 is a losing hand, but standing gives almost no chance while hitting at least offers a chance to improve. Doubling is too risky with a 15.

With a hard 16 against a dealer 10, hitting gives the best chance to improve, since standing loses too often and surrender is not available.

Hard 18 against a dealer 10 is a made hand; hitting risks busting with little gain, so standing is the correct basic strategy.

Hard 9 is too weak to stand against a dealer Queen, and doubling is not profitable against a 10-upcard, so hitting is the correct basic strategy play.

Total 11 vs dealer 10 is a strong hand to improve; since doubling is unavailable after the third card, hitting maximizes expected value.

Against a dealer 10, a hard 14 is below the standing threshold and hitting gives the best chance to improve or avoid busting while the dealer is strong.

Hard 18 is strong against a dealer Queen upcard, and hitting risks busting. Standing is the correct basic strategy play.