Blackjack table

Hard 20 against a dealer jack is a made hand; standing is the only +EV choice, while hitting, doubling, or splitting tens would throw away a strong total.

Hard 13 versus a dealer 8 is a hit under basic strategy; standing loses too often to an 18 and doubling is too risky.

Hard 20 against a dealer 8 is a clear stand; hitting risks busting on any card except an ace.

Pair of 4s against a dealer 4 is a basic-strategy split when double after split is allowed, giving two hands a chance to improve against a weak upcard.

Hard 14 against a dealer 4 is a basic-strategy stand: the dealer is weak enough that busting by hitting is the bigger risk.

Hard 6 versus a dealer 4 is too weak to double or stand; hitting is the basic-strategy play to build a playable total.

Hard 16 against a dealer 4 is a stand in basic strategy; the dealer is more likely to bust than to beat a made 16, and hitting risks busting.

Pair of sixes versus dealer 5 is a standard basic-strategy split: the dealer is weak and two starting totals of 6 are better than standing or hitting 12.

Hard 11 against a dealer 5 is a strong double in basic strategy, and double after split is allowed.

Hard 11 against a dealer 5 is a strong double: I am favored to make a high total and the dealer is likely to bust or finish weak. Doubling maximizes expected value on this split hand.

Hard 16 versus a dealer 10 is a clear hit under basic strategy; standing loses too often and doubling is too risky.

Hard 18 against a dealer 10 is a clear stand; hitting risks busting a strong total.

Pair of tens totals 20 against a dealer 5; standing is the clear basic-strategy play, while splitting, hitting, or doubling would only risk a strong made hand.

Hard 13 versus dealer 6 is a stand under basic strategy; the dealer is weak and doubling a stiff total is negative EV.

Hard 19 against a dealer 7 is a strong made hand; standing is the clear basic-strategy play, while hitting or doubling risks busting a near-certain winner.

Hard 9 versus a dealer King is a hit in basic strategy; doubling is only correct against weak dealer upcards, and standing would leave a losing total.

Hard 12 versus a dealer King is a hit under basic strategy; standing loses too often to a made dealer hand.

Hard 13 against a dealer king is a clear hit; standing loses to most dealer totals and the hand is not soft.

Hard 15 versus a dealer King is a hit under basic strategy; standing loses too often when the dealer makes a hand.

Hard 18 against a dealer King is a clear stand; hitting risks busting a strong total.

Hard 13 versus a dealer 3 is a basic-strategy stand: the dealer is weak enough that drawing risks busting more than it helps.

Hard 12 versus a dealer 4 is a basic-strategy stand: the dealer is weak, and hitting risks busting.

Hard 14 against a dealer 10 is a clear hit in basic strategy; standing loses too often and doubling is not justified.

Hard 10 versus a dealer 10 is a basic-strategy hit; doubling is only correct against 2 through 9.

Hard 12 against a dealer 10 is a clear hit under basic strategy; standing loses too often to the dealer's strong upcard.

Hard 19 versus a dealer 10 is a clear stand; hitting risks busting on almost every card.

Hard 14 versus a dealer 5 is a stand in basic strategy: the dealer is weak and likely to bust, so hitting or doubling risks a worse total.

Hard 17 versus a dealer 9 is a clear stand: hitting busts too often and doubling is even worse.

Hard 17 versus a dealer 10 is a clear stand; hitting or doubling risks busting a made hand.

Hard 19 against a dealer 5 is a clear stand; hitting or doubling risks a strong made hand.

Hard 11 against a dealer 2 is a clear double: the extra bet is favored and a ten makes 21.