Blackjack table

Hard 11 against a dealer 8 is a standard double: one more card is likely to make a strong total, and the extra bet is +EV.

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

Hard 18 versus a dealer 8 is a clear stand; hitting risks busting a strong total.

Hard 20 against a dealer 7 is a strong made hand, so standing is clearly best. Hitting, doubling, or splitting tens would only risk a winning total.

Hard 11 versus a dealer 10 is a clear double: the next card is likely to make a strong total, and doubling maximizes expected value.

Hard 14 against a dealer queen is a clear hit under basic strategy; standing loses too often and doubling is only justified against weak upcards.

Hard 19 versus a dealer Queen is a strong made hand; hitting busts on almost every card, so standing is the clear basic-strategy play.

Hard 14 against a dealer 6 is a stand in basic strategy: the dealer is weak and likely to bust, so hitting or doubling risks a worse outcome.

Hard 16 versus a dealer Queen is a clear hit under basic strategy; standing loses too often and doubling is far too risky.

Hard 20 versus a dealer 9 is a clear stand; hitting or doubling risks a bust, and splitting tens is strongly negative EV.

Hard 20 against a dealer 6 is a strong made hand; standing is clearly best, while hitting, doubling, or splitting tens would only risk a winning position.

Hard 20 against a dealer 7 is a clear stand; hitting or doubling risks busting a near-perfect hand, and splitting tens is negative EV.

Hard 19 against a dealer 5 is a strong made hand; standing is the clear basic-strategy play, while hitting or doubling risks busting a near-certain winner.

Hard 8 versus dealer 7 is a clear hit; doubling is not justified and standing is far too weak.

Hard 12 against a dealer 7 is a hit under basic strategy, since the dealer is more likely to finish strong and standing leaves a weak total.

Hard 13 against a dealer 7 is a hit under basic strategy, since the dealer is favored to make a strong hand and standing loses too often.

Hard 16 versus a dealer ten is a hit under basic strategy; standing loses too often and doubling is a poor risk.

Hard 12 versus a dealer 5 is a basic-strategy stand: the dealer is likely to bust, so hitting risks busting a hand that already wins often enough.

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

Hard 20 against a dealer 4 is a clear stand; hitting or doubling risks a made hand, and splitting tens is -EV.

Hard 11 versus a dealer ten is a standard double: one more card is likely to make a strong total, and doubling maximizes expected value.

Hard 18 versus a dealer 2 is a clear stand; hitting or doubling risks busting a strong total.

Pair of nines against a dealer 4 is a standard split: each nine starts a strong hand versus a weak upcard, which is better than standing on 18 or risking a double.

Hard 16 versus a dealer 4 is a stand in basic strategy; the dealer is weak and hitting or doubling a stiff 16 is negative EV.

Soft 20 versus a dealer 4 is already a very strong hand, so standing avoids turning a likely winner into a worse total.

Hard 20 against a dealer Queen is a strong made hand; standing is the clear basic-strategy play, while hitting, doubling, or splitting tens would only worsen the expected value.