Blackjack table

19 is a strong total against dealer's 7; standing is optimal basic strategy.

Hard 17 versus dealer 8 is a stand; hitting risks busting too often against a decent but not strong upcard.

Hard 12 vs dealer Ace is a standard hit per basic strategy since there's no surrender available.

20 is a strong hand; standing is optimal even against dealer's Ace since dealer already checked for blackjack (no insurance offered).

15 vs dealer 8 is a standard basic strategy hit; standing loses too often against an 8 upcard.

Hard 16 vs dealer 8 is close, but with three cards already used, basic strategy still favors standing rather than risking a bust; dealer 8 isn't strong enough to force a hit here per standard hard 16 vs 8 stand chart in some counts, but overall standing is standard against 8 with hard totals 12-16 is mixed - standard basic strategy actually says hit hard 16 vs 8, so I'll hit instead.

12 vs dealer 10 requires hitting per basic strategy since standing loses too often and doubling risks too much with a weak total.

18 vs dealer's 3 is a strong hand; standing is correct basic strategy.

15 vs dealer 4 - dealer likely to bust with weak upcard, standing is optimal per basic strategy.

Hard 10 versus dealer 2 is a classic double-down spot with strong expected value.

Hard 11 versus dealer's weak 3 upcard is a classic double-down opportunity, maximizing value with strong odds of a high card completing to 21 or a strong hand.

Hard 18 vs dealer 9 is a standard stand per basic strategy.

18 vs dealer 6 is a strong stand; dealer likely to bust or make a weak hand.

Dealer shows a weak 6; standing on 15 lets the dealer's high bust probability work in my favor rather than risking a bust myself.

13 vs dealer Qd is a strong hit situation in basic strategy since dealer shows a high card and my hand is weak; standing would lose too often.

Hard 15 vs dealer Qd is a clear hit per basic strategy since standing loses too often.

Hard 17 vs dealer Qd; standing is standard basic strategy since hitting risks busting too often.

19 is a strong total against dealer's Qd; standing is optimal per basic strategy.

20 vs dealer 4 is a strong stand; no reason to risk busting a near-guaranteed winner.

Hard 15 vs dealer 10 is a standard basic-strategy hit; standing loses too often and doubling is bad here.

Hard 17 against dealer 10 upcard; standing is standard basic strategy since hitting risks busting too often.