Blackjack table

Basic strategy: always split 7s against a dealer 10 to avoid a stiff 14 and improve expected value.

Hard 17 against a dealer 10 is a basic-strategy stand: hitting busts roughly 69% of the time, while standing keeps the ~21% dealer-bust chance plus pushes on dealer 17.

Hard 16 vs dealer 10 is a basic-strategy hit; standing loses against most dealer upcards.

Soft 20 (A-9) is a near-unbeatable hand; basic strategy stands against every dealer upcard including an Ace, and since the dealer peeked and play continues, they don't have blackjack.

Pair of 5s totaling 10 vs dealer 7 is a strong double in basic strategy (expecting to draw to 20).

Hard 17 vs dealer 10 is a standard stand; hitting risks busting with little gain.

Hard 20 is nearly unbeatable; standing maximizes EV against any dealer upcard, including an Ace (dealer peek already ruled out blackjack).

Hard 10 vs dealer 10: basic strategy is to hit; doubling is only correct against dealer 2-9, and standing on 10 is too weak.

Hard 20 is a near-certain winner; hitting or any other action risks busting a made hand. Standing is the only correct play against any dealer upcard.

Hard 16 vs dealer 7 is a clear hit; standing loses more often than drawing.

Hard 11 against a dealer 10 with S17 rules: doubling is the basic-strategy maximizer since one card likely gives 19-21 and dealer 10 up is still vulnerable.

Hard 18 against a dealer 4 is a strong standing hand; basic strategy says stand, as hitting risks busting a likely winner and doubling hard 18 is not profitable.

Hard 9 against a dealer 9 is a basic-strategy hit; doubling is only correct against dealer 3-6, so I take one card and reassess.

Hard 16 vs dealer 9 is a basic-strategy hit; standing gives the dealer too strong a position. Only 5 card values (10, J, Q, K, and... actually 6 through king bust) — hitting is correct per standard play.

Hard 19 is a strong made hand; standing is correct against a dealer 9, and hitting risks busting for negligible gain.

Hard 15 against a dealer 2 is a basic-strategy stand; the dealer's bust risk with a weak upcard outweighs the risk of hitting and busting.

Hard 4 (pair of 2s) vs dealer 9: basic strategy says hit; with DAS, 2s are only split against dealer 2-7, so hitting is correct here.

Hard 8 vs dealer 9 is a clear hit per basic strategy; standing on 8 has almost no winning chance.

Hard 18 against a dealer 9 is a strong standing hand; hitting risks busting for negligible gain since only 3-6 improve it.

Hard 16 vs dealer 2 is a basic-strategy stand; hitting risks busting against a weak dealer upcard likely to bust.

Hard 6 is far too low to stand; basic strategy says hit hard 5-8 against any dealer upcard, including the weak 4.

Hard 9 vs dealer 4 is a double in basic strategy, but doubling is not legal here, so hitting is the correct fallback to build toward 17+ against a weak dealer upcard.

Hard 17 is a made hand; standing is correct against a dealer 4, since hitting risks busting with no upside.

Hard 17 is a standing hand against any dealer upcard; hitting risks busting with no upside, and doubling a made 17 is far too risky against a 3.

Hard 12 against a dealer 7 is a basic-strategy hit: standing only wins if the dealer busts, while drawing one card improves the hand more often than the bust risk hurts.

Hard 17 vs dealer 7 is a clear stand in basic strategy; hitting risks busting with no meaningful gain.

Hard 20 is nearly unbeatable; standing maximizes expected value against a dealer 2. Doubling or splitting tens would sacrifice a dominant hand.

Hard 14 against a dealer 2 is a basic-strategy stand: the dealer is more likely to break from weak upcards, so risking a bust by hitting is worse than letting the dealer play out.