Blackjack table

Hard 20 is a near-made hand; standing wins against every dealer upcard except a dealer 20/21, and splitting or hitting would only destroy value.

Hard 12 vs dealer 2 is a marginal hit in basic strategy (S17, 6 decks), since standing loses more against the dealer's likely 17-20.

Soft 20 (A+9) is a near-made hand; standing wins against a dealer 6 in the long run, and doubling soft 20 is strictly worse. No hit can improve the hand without busting risk.

Hard 15 against a dealer 7 is a basic-strategy hit; standing loses more often than drawing one card, and doubling is not viable here.

Soft 17 vs dealer 9 is a clear hit per basic strategy; doubling is only correct against weak upcards 3-6, and standing on 17 is too weak against a 9.

Hard 13 against a dealer 9 is a clear basic-strategy hit; standing leaves the hand losing unless the dealer busts, which is unlikely against 9.

Hard 17 against a dealer 2 is a standard stand; hitting risks busting with little gain since the dealer's 2 is weak.

Hard 10 against a dealer King is a hit per basic strategy; doubling is only correct against dealer 2-9, and standing leaves too weak a total against a likely 20.

Hard 20 is a near-certain winner; hitting risks busting for negligible gain. Stand against the dealer's King.

Hard 5 against a dealer queen is far too weak to stand; basic strategy is to hit until at least 17. Doubling hard 5 is not profitable.

Hard 15 against a dealer 10 is a basic-strategy hit: standing wins only when the dealer busts (~21%), while a single card busts me just ~31% and 17-21 improves my position significantly.

Hard 20 against a dealer queen is nearly unbeatable; standing is clearly optimal.

Hard 14 vs dealer 8 is a basic-strategy hit; standing loses more often than drawing since the dealer likely makes 18+. No double is justified at this total.

Basic strategy: stand on 15 vs dealer 6, since the dealer is likely to bust and hitting risks busting.

Hard 12 against a dealer 6 is a basic-strategy stand: the dealer's bust probability is high, and hitting risks busting with any ten. Standing maximizes expected value here.

Hard 13 against a dealer 6 is a basic-strategy stand: the dealer's bust probability is high and hitting risks breaking a likely winning hand.

Basic strategy: never split 6s against a dealer 10; hitting a hard 12 vs 10 is the correct play since standing risks losing to a made dealer hand.

Hard 14 against a dealer 10 is a clear basic-strategy hit; standing loses against the dealer's likely 17-20 range.

Hard 19 is a strong standing hand against any dealer upcard; hitting risks busting with almost no upside, and doubling a 19 is not profitable.

Hard 16 against a dealer 10 with no surrender available; basic strategy for a two-card 16 is to hit, since standing only wins on a dealer bust (~21%).

Hard 19 is a strong standing hand against any dealer upcard; hitting risks busting for negligible gain.

Hard 17 vs dealer 3 is a standard stand; hitting risks busting (~61%) for little gain, and the dealer's 3 upcard busts frequently under S17 rules.

Hard 6 against a dealer 10 is one of the worst starting totals; basic strategy says always hit, and doubling would just put more money at risk with a hand that can't bust on the next card but rarely wins.

Hard 16 vs dealer 10 is normally a hit, but with a three-card 16 containing 2 and 4, the composition-dependent exception favors standing since small cards are depleted, slightly improving dealer bust odds.