Blackjack table

Hard 20 against a dealer ten is a strong standing hand; hitting or doubling would only risk ruin.

Hard 15 vs dealer 10 is a losing hand; basic strategy says hit since standing loses to the dealer's likely 17-20 and bust risk is acceptable.

Hard 19 vs dealer 10 is a clear stand; only a 2 gives the dealer much chance, and hitting risks busting a strong hand.

Soft 18 against a dealer 2 is a stand per basic strategy (S17); doubling is only favored against dealer 3-6, and hitting risks turning a likely winning total into a worse spot.

Basic strategy: always split 8s against a dealer ten rather than play 16.

Hard 18 against a dealer ten is a clear stand in basic strategy; hitting risks busting with minimal upside. My soft 19 on the second hand will also stand when it becomes active.

Soft 19 (A+8) vs dealer 10 in six-deck S17 basic strategy is a stand; doubling would only risk a strong made hand for marginal gain.

20 vs dealer 5 is a strong stand; doubling risks ruin of a near-certain winner.

Hard 14 against a dealer 10 is a basic-strategy hit; standing loses too often since the dealer makes 17+ about 67% of the time. Doubling is far too risky here.

Hard 16 vs dealer 7 is a basic-strategy stand: hitting risks busting (~62%) while the dealer with a 7 up busts often enough that standing wins more in the long run.

Soft 13 against a dealer 10 is far too weak to stand or double; basic strategy says hit and try to improve the hand.

Hard 13 against a dealer 10 is a clear hit per basic strategy; standing risks losing to the dealer's likely 17-20.

Hard 20 versus a dealer 5 is one of the strongest standing spots; doubling or splitting tens would sacrifice a near-certain winner.

Hard 12 against a dealer 9 is a clear basic-strategy hit; standing risks losing to a likely dealer 19, and doubling is unwarranted.

Hard 13 against a dealer 9 is a clear basic-strategy hit; standing would lose far more often than drawing, since only 8 or less busts me and the dealer 9 is strong.

Hard 18 against a dealer 2 is a clear stand; hitting risks busting a made hand for negligible gain.

Hard 19 against a dealer 5 is a clear stand; hitting risks busting with almost no gain since the dealer's weak upcard already gives strong winning odds.

Hard 9 vs dealer 10 is a hit per basic strategy; doubling is only favorable against dealer 3-6, and standing on 9 gives little chance to win.

Hard 16 against a dealer 10 is a basic-strategy hit; standing loses roughly 77% of the time, while hitting improves expected value despite bust risk.

Hard 15 against a dealer 7 is a basic-strategy hit: the dealer likely makes 17+, and standing on 15 loses more often than trying to improve to 17-21.

Hard 19 is a strong standing hand against a dealer 8; hitting or doubling would only risk a near-certain win.

Hard 17 vs dealer 10: basic strategy is to stand, since hitting risks busting (~69%) and only improves the hand marginally. Doubling with 17 is clearly unfavorable.

Basic strategy for soft 18 vs a dealer 4 favors maximizing value by doubling (the dealer's bust potential outweighs standing), which is clearly EV-positive here.

Hard 12 against a dealer 8 is a basic-strategy hit: the dealer's 8 is strong, and I can't bust with one card while standing on 12 likely loses.

Hard 13 against a dealer 8 is a clear basic-strategy hit; standing leaves almost no winning chance since the dealer likely makes 18+. Only hit or stand are legal here.