Blackjack table

Basic strategy for 2,2 against a dealer 8 is to hit, even with double after split allowed, because splitting only pays against 2-7. A total of 4 cannot bust on the next card.

A hard 13 against a dealer 8 is a hit in basic strategy, since the dealer is likely to make a strong total.

Hard 15 against a dealer 8 is a standard hit in basic strategy, since standing loses too often to the dealer's likely 18.

Hard 11 against a dealer 10 is a standard double in 6-deck S17 basic strategy with peek, since the dealer has already checked for blackjack.

Hard 18 against a dealer 10 is a stand in basic strategy. Hitting or doubling risks a bust, and 18 already beats many of the dealer's final totals.

Basic strategy doubles a hard 11 against a dealer 9 in a 6-deck S17 game, since it has the highest expected value.

Hard 20 against a dealer 9 is a strong standing hand. Basic strategy says never split tens.

Basic strategy with hard 10 against a dealer 2 is to double, since 10 beats any dealer upcard from 2 through 9. Doubling is legal here and has the highest expected value.

Hard 20 against a dealer 8 is a strong favorite, and basic strategy says never split tens. Standing maximizes expected value.

Basic strategy for soft 17 against a dealer 3 in a 6-deck S17 game is to double down. It is the highest-EV choice.

Basic strategy for 6 decks, dealer standing on soft 17 with double after split: a pair of 4s is split only against a 5 or 6. Against a 4, the best play is to hit the hard 8.

Soft 19 against a dealer 4 is a clear stand under basic strategy, and doubling isn't available with three cards.

Basic strategy says to always hit a hard 7 against any dealer upcard. It is too weak to double and can't bust on one card.

Hard 17 against a dealer 3 is a stand under basic strategy. Hitting would bust too often.

Basic strategy says to double a hard 10 against a dealer 8, since 10 beats the dealer's upcard and has a strong chance of drawing to 20. This is correct under 6-deck S17 rules.

Hard 11 against a dealer 4 is a standard double under basic strategy. It is a strongly favorable spot to put more money in.

Basic strategy for a hard 13 against a dealer 2 is to stand (6 decks, dealer stands on soft 17), since the dealer has a decent chance of busting.

Basic strategy for a hard 9 against a dealer 6 is to double down, since the dealer's weak upcard gives a high bust chance.

In 6-deck S17 basic strategy, hard 8 against a dealer 6 is a hit. Doubling 8 versus 5 or 6 is only correct in single-deck games.

Hard 18 against a dealer 6 is a clear stand, since the dealer is likely to bust and any hit risks busting.

Basic strategy for a hard 9 against a dealer 3 in a 6-deck game where the dealer stands on soft 17 is to double down. It is the highest-EV play.