Blackjack table

Hard 15 against a dealer 2 is a basic-strategy stand: the dealer is weak enough that standing beats hitting or doubling a stiff total.

A hard 20 against a dealer King is already a strong made hand, so standing is clearly better than hitting, doubling, or splitting tens.

Hard 17 against a dealer 6 is a clear stand: hitting risks busting a made hand, and doubling is not justified.

Hard 11 against a dealer 6 is a classic double: the next card is likely to make a strong total, and the dealer’s weak upcard favors pressing the advantage.

Soft 15 versus a dealer 3 is a basic-strategy hit; doubling is only correct against 4 through 6.

Hard 12 against a dealer 3 is a hit under basic strategy, since the dealer is more likely to make a hand than bust and standing loses too often.

Hard 17 against a dealer 3 is a clear stand; hitting risks busting a made hand.

Hard 13 versus a dealer 10 is a clear hit in basic strategy; standing loses too often and doubling is too risky.

Hard 9 versus a dealer 4 is a standard double: the dealer is weak and one more card is the highest-EV play.

Hard 16 versus a dealer 2 is a basic-strategy stand: the dealer is weak, and hitting or doubling a stiff 16 is negative EV.

Hard 12 versus a dealer ten-value upcard is a hit under basic strategy; standing loses too often and doubling is negative EV.

Hard 13 against a dealer 8 is a hit under basic strategy; standing loses too often and doubling is not justified.

Hard 18 versus dealer 8 is a clear stand; hitting risks busting a made hand.

Hard 18 versus a dealer Queen is a clear stand; hitting or doubling risks busting a strong made hand.

Hard 5 versus a dealer queen should be hit; doubling is poor because the hand cannot reach a strong total in one card, and standing is hopeless.

Hard 12 against a dealer Queen is a hit under basic strategy; standing loses too often when the dealer makes a pat hand.

Hard 16 versus a dealer 10 is a hit under basic strategy; standing loses to any dealer 17 or better.

Hard 12 versus a dealer 2 is a basic-strategy hit: standing loses too often to dealer totals of 17–21, and doubling is not justified.

Hard 13 versus an Ace is a hit under basic strategy; standing loses too often to the dealer's strong upcard and doubling is not justified.

Hard 14 versus a dealer ace is a clear hit under basic strategy; standing would leave a weak total against a strong upcard.

Hard 16 versus an ace is a hit under basic strategy; standing loses to any dealer total of 17 or more.

Hard 19 against a dealer Jack is a strong made hand; standing is the correct basic-strategy play, and hitting or doubling would risk busting a winning total.

Hard 11 against a dealer 8 is a strong double in basic strategy, maximizing expected value before the dealer acts.

Hard 12 versus dealer 9 is a hit under basic strategy; standing loses to too many dealer outcomes and doubling is too risky.

Pair of sixes totals 12 against an Ace; basic strategy is to hit rather than split or stand, since splitting sixes is only correct versus dealer 2–6.

Hard 13 against a dealer Ace is a hit under basic strategy; standing would lose too often to the dealer's strong upcard.

Hard 17 should stand against an Ace; hitting risks busting and is worse than letting the dealer play.