Blackjack table

Hard 11 against a dealer ten is a clear double: the extra bet is justified because one card often makes 21 or a strong total, and standing would waste the hand.

Hard 20 against a dealer 9 is a strong made hand; standing is the clear basic-strategy play, while hitting, doubling, or splitting tens would only risk a winning total.

Hard 20 against a dealer queen is a made hand; standing is the only +EV choice among the legal actions.

Hard 13 against a dealer 10 is a weak total, so basic strategy is to hit rather than stand or double.

Hard 13 versus a dealer 8 is a clear hit under basic strategy; standing loses too often to the dealer's likely made hand, and doubling is too risky.

Hard 17 against a dealer 8 is a basic-strategy stand; hitting busts on any 5 or higher and has negative expected value.

Hard 11 versus a dealer 8 is a standard double: the extra bet is justified by the strong chance of making 21 or a high total.

Hard 10 versus dealer 7 is a standard double: the two-card total is strong enough to take one more card for double the stake.

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

Hard 18 against a dealer 2 is a strong made hand; standing is the correct basic-strategy play, while hitting or doubling risks busting a likely winner.

Hard 14 versus a dealer 9 is a hit under basic strategy; standing loses too often and doubling is not justified.

Hard 17 against a dealer 9 should stand; hitting busts on any 5 or higher and has negative expected value.

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

Hard 10 versus dealer 6 is a standard double: the dealer is weak and an extra card has strong expected value.

Hard 13 against a dealer 4 is a stand in basic strategy; the dealer is weak and hitting or doubling risks busting a made hand.

Hard 14 against a dealer 10 is a clear hit in basic strategy; standing loses too often and doubling is negative EV.

Hard 14 against a dealer 8 is a hit in basic strategy: standing loses too often when the dealer makes a hand, and doubling is not justified with this total.

Hard 19 is a strong total against a dealer 8, and hitting risks busting a likely winning hand.

Hard 13 against a dealer 7 is a hit in basic strategy; standing loses too often and doubling is not justified.

Hard 14 against a dealer 10 loses if I stand, and basic strategy says to hit rather than double.

Hard 16 versus a dealer 7 is a hit under basic strategy; standing loses more often and doubling is too risky.

Hard 18 against a dealer 7 is a clear stand; hitting risks busting on most cards and the dealer is not strong enough to justify that risk.

Hard 19 versus a dealer jack is a clear stand; hitting or doubling risks a strong made hand.

Hard 18 against a dealer 5 is a strong made hand; standing avoids bust risk and is the correct basic-strategy play.