Blackjack table

Hard 20 against dealer's King is a strong hand; standing is optimal basic strategy.

12 vs dealer 5 is a classic stand spot; dealer's weak upcard has high bust probability, so standing avoids unnecessary risk.

Hard 17 against dealer's 4 is a clear stand; dealer must hit on low total and risks busting.

Hard 10 vs dealer 7 is a standard double per basic strategy, maximizing value with a strong likely total of 20.

Total of 7 is too low to double profitably against a 10 upcard; just hit to improve the hand.

Hard 17 vs dealer 10 is a standard stand; hitting risks busting too often.

Total of 6 is too low to double profitably against a dealer Queen; just hit to build the hand.

Total of 9 against dealer Qd; doubling isn't available here (3 cards), so just hit to improve the hand.

Hard 19 against a dealer Queen is a strong hand; standing is correct basic strategy.

Hard 17 vs dealer 10 is a standard stand; hitting risks busting too often.

12 vs dealer 3 is a stand per basic strategy since dealer bust probability is high enough on low upcards.

Hard 16 vs dealer Ace with no surrender option available; basic strategy says hit since standing loses too often against a strong dealer upcard.

13 vs dealer 6 is a classic stand; dealer bust chance is high with a weak upcard, so no need to risk busting.

Pair of 3s totaling 6 against dealer's 8 is best played as a double down (not split, since splitting 3s vs 8 is weaker); doubling maximizes value on a hand that will likely receive one strong card.

Pair of 6s vs dealer 10 is not a split situation; basic strategy says hit 12 against a 10 upcard.

20 is a strong total against dealer's Qd upcard; standing is clearly correct.

12 vs dealer 6: dealer is weak and likely to bust, so standing is correct per basic strategy.

Hard 9 vs dealer 6 is a standard double in basic strategy, as the dealer is weak and I have good chances to improve.